Nim: Add support for the nimble build system

Change-Id: Id3bd977f14bc9d2ec3fa92e162238bbff0513de1
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: hjk <hjk@qt.io>

share/qtcreator/templates/wizards/projects/nimble/binary/binary.nimble

@@ -0,0 +1,14 @@
+# Package
+
+backend       = "%{ProjectBackend}"
+version       = "%{ProjectVersion}"
+author        = "%{ProjectAuthor}"
+description   = "%{ProjectDescription}"
+license       = "%{ProjectLicense}"
+srcDir        = "src"
+bin           = @["%{ProjectName}"]
+
+
+# Dependencies
+
+requires "nim >= %{ProjectNimVersion}"

share/qtcreator/templates/wizards/projects/nimble/binary/src/binary.nim

@@ -0,0 +1,5 @@
+# This is just an example to get you started. A typical binary package
+# uses this file as the main entry point of the application.
+
+when isMainModule:
+  echo("Hello, World!")

share/qtcreator/templates/wizards/projects/nimble/hybrid/hybrid.nimble

@@ -0,0 +1,15 @@
+# Package
+
+backend       = "%{ProjectBackend}"
+version       = "%{ProjectVersion}"
+author        = "%{ProjectAuthor}"
+description   = "%{ProjectDescription}"
+license       = "%{ProjectLicense}"
+srcDir        = "src"
+installExt    = @["nim"]
+bin           = @["%{ProjectName}"]
+
+
+# Dependencies
+
+requires "nim >= %{ProjectNimVersion}"

share/qtcreator/templates/wizards/projects/nimble/hybrid/src/hybrid.nim

@@ -0,0 +1,7 @@
+# This is just an example to get you started. A typical hybrid package
+# uses this file as the main entry point of the application.
+
+import %{ProjectName}pkg/submodule
+
+when isMainModule:
+  echo(getWelcomeMessage())

share/qtcreator/templates/wizards/projects/nimble/hybrid/src/hybridpkg/submodule.nim

@@ -0,0 +1,6 @@
+# This is just an example to get you started. Users of your hybrid library will
+# import this file by writing ``import %{ProjectName}pkg/submodule``. Feel free to rename or
+# remove this file altogether. You may create additional modules alongside
+# this file as required.
+
+proc getWelcomeMessage*(): string = "Hello, World!"

share/qtcreator/templates/wizards/projects/nimble/hybrid/tests/config.nims

@@ -0,0 +1 @@
+switch("path", "$projectDir/../src")

share/qtcreator/templates/wizards/projects/nimble/hybrid/tests/test1.nim

@@ -0,0 +1,12 @@
+# This is just an example to get you started. You may wish to put all of your
+# tests into a single file, or separate them into multiple `test1`, `test2`
+# etc. files (better names are recommended, just make sure the name starts with
+# the letter 't').
+#
+# To run these tests, simply execute `nimble test`.
+
+import unittest
+
+import %{ProjectName}pkg/submodule
+test "correct welcome":
+  check getWelcomeMessage() == "Hello, World!"

share/qtcreator/templates/wizards/projects/nimble/library/library.nimble

@@ -0,0 +1,13 @@
+# Package
+
+backend       = "%{ProjectBackend}"
+version       = "%{ProjectVersion}"
+author        = "%{ProjectAuthor}"
+description   = "%{ProjectDescription}"
+license       = "%{ProjectLicense}"
+srcDir        = "src"
+
+
+# Dependencies
+
+requires "nim >= %{ProjectNimVersion}"

share/qtcreator/templates/wizards/projects/nimble/library/src/library.nim

@@ -0,0 +1,7 @@
+# This is just an example to get you started. A typical library package
+# exports the main API in this file. Note that you cannot rename this file
+# but you can remove it if you wish.
+
+proc add*(x, y: int): int =
+  ## Adds two files together.
+  return x + y

share/qtcreator/templates/wizards/projects/nimble/library/src/library/submodule.nim

@@ -0,0 +1,12 @@
+# This is just an example to get you started. Users of your library will
+# import this file by writing ``import %{ProjectName}/submodule``. Feel free to rename or
+# remove this file altogether. You may create additional modules alongside
+# this file as required.
+
+type
+  Submodule* = object
+    name*: string
+
+proc initSubmodule*(): Submodule =
+  ## Initialises a new ``Submodule`` object.
+  Submodule(name: "Anonymous")

share/qtcreator/templates/wizards/projects/nimble/library/tests/config.nims

@@ -0,0 +1 @@
+switch("path", "$projectDir/../src")

share/qtcreator/templates/wizards/projects/nimble/library/tests/test1.nim

@@ -0,0 +1,12 @@
+# This is just an example to get you started. You may wish to put all of your
+# tests into a single file, or separate them into multiple `test1`, `test2`
+# etc. files (better names are recommended, just make sure the name starts with
+# the letter 't').
+#
+# To run these tests, simply execute `nimble test`.
+
+import unittest
+
+import %{ProjectName}
+test "can add":
+  check add(5, 5) == 10

share/qtcreator/templates/wizards/projects/nimble/wizard.json

@@ -0,0 +1,268 @@
+{
+    "version":1,
+    "kind":"project",
+    "id":"Z.NimbleProject",
+    "category":"I.Projects",
+    "trDescription":"Creates a Nim application with Nimble.",
+    "trDisplayName":"Nimble Application",
+    "trDisplayCategory":"Non-Qt Project",
+    "featuresRequired":[
+        "ToolChain.Nim.NimToolChain"
+    ],
+    "icon":"icon.png",
+    "enabled":"%{JS: value('Plugins').indexOf('Nim') >= 0 }",
+    "options":[
+        {
+            "key":"ProjectFile",
+            "value":"%{NimProjectFile}"
+        },
+        {
+            "key":"NimProjectFile",
+            "value":"%{JS: Util.fileName(value('ProjectDirectory') + '/' + value('ProjectName'), 'nimble')}"
+        },
+        {
+            "key":"NimFileName",
+            "value":"main.nim"
+        }
+    ],
+    "pages":[
+        {
+            "trDisplayName":"Project Location",
+            "trShortTitle":"Location",
+            "typeId":"Project"
+        },
+        {
+            "trDisplayName":"Define Project Configuration",
+            "trShortTitle":"Configuration",
+            "typeId":"Fields",
+            "data":[
+                {
+                    "name":"ProjectType",
+                    "trDisplayName":"Type:",
+                    "type":"ComboBox",
+                    "persistenceKey":"ProjectType",
+                    "data":{
+                        "items":[
+                            {
+                                "trKey":"Binary",
+                                "value":"Binary"
+                            },
+                            {
+                                "trKey":"Library",
+                                "value":"Library"
+                            },
+                            {
+                                "trKey":"Hybrid",
+                                "value":"Hybrid"
+                            }
+                        ]
+                    }
+                },
+                {
+                    "name":"ProjectAuthor",
+                    "trDisplayName":"Author:",
+                    "type":"LineEdit",
+                    "mandatory":true
+                },
+                {
+                    "name":"ProjectDescription",
+                    "trDisplayName":"Description:",
+                    "type":"LineEdit",
+                    "mandatory":true
+                },
+                {
+                    "name":"ProjectVersion",
+                    "trDisplayName":"Version:",
+                    "type":"LineEdit",
+                    "mandatory":true,
+                    "data":{
+                        "trText":"0.1.0"
+                    }
+                },
+                {
+                    "name":"ProjectLicense",
+                    "trDisplayName":"License:",
+                    "type":"ComboBox",
+                    "persistenceKey":"LicenseType",
+                    "data":{
+                        "index":0,
+                        "items":[
+                            {
+                                "trKey":"MIT",
+                                "value":"MIT"
+                            },
+                            {
+                                "trKey":"GPL-2.0",
+                                "value":"GPL-2.0"
+                            },
+                            {
+                                "trKey":"Apache-2.0",
+                                "value":"Apache-2.0"
+                            },
+                            {
+                                "trKey":"ISC",
+                                "value":"ISC"
+                            },
+                            {
+                                "trKey":"GPL-3.0",
+                                "value":"GPL-3.0"
+                            },
+                            {
+                                "trKey":"BSD-3-Clause",
+                                "value":"BSD-3-Clause"
+                            },
+                            {
+                                "trKey":"LGPL-2.1",
+                                "value":"LGPL-2.1"
+                            },
+                            {
+                                "trKey":"LGPL-3.0",
+                                "value":"LGPL-3.0"
+                            },
+                            {
+                                "trKey":"EPL-2.0",
+                                "value":"EPL-2.0"
+                            },
+                            {
+                                "trKey":"Proprietary",
+                                "value":"Proprietary"
+                            },
+                            {
+                                "trKey":"Other",
+                                "value":"Other"
+                            }
+                        ]
+                    }
+                },
+                {
+                    "name":"ProjectBackend",
+                    "trDisplayName":"Backend:",
+                    "type":"ComboBox",
+                    "persistenceKey":"BackendType",
+                    "data":{
+                        "index":0,
+                        "items":[
+                            {
+                                "trKey":"C",
+                                "value":"c"
+                            },
+                            {
+                                "trKey":"Cpp",
+                                "value":"cpp"
+                            },
+                            {
+                                "trKey":"Objective C",
+                                "value":"objc"
+                            },
+                            {
+                                "trKey":"Javascript",
+                                "value":"js"
+                            }
+                        ]
+                    }
+                },
+                {
+                    "name":"ProjectNimVersion",
+                    "trDisplayName":"Min Nim Version:",
+                    "type":"LineEdit",
+                    "mandatory":true,
+                    "data":{
+                        "trText":"1.0.0"
+                    }
+                }
+            ]
+        },
+        {
+            "trDisplayName":"Kit Selection",
+            "trShortTitle":"Kits",
+            "typeId":"Kits",
+            "enabled":"%{JS: !value('IsSubproject')}",
+            "data":{
+                "projectFilePath":"%{ProjectFile}"
+            }
+        },
+        {
+            "trDisplayName":"Project Management",
+            "trShortTitle":"Summary",
+            "typeId":"Summary"
+        }
+    ],
+    "generators":[
+        {
+            "typeId":"File",
+            "data":[
+                {
+                    "source":"binary/binary.nimble",
+                    "target":"%{ProjectFile}",
+                    "openAsProject":true,
+                    "condition":"%{JS: value('ProjectType') === 'Binary'}"
+                },
+                {
+                    "source":"binary/src/binary.nim",
+                    "target":"%{ProjectDirectory}/src/%{ProjectName}.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Binary'}",
+                    "openInEditor": true
+                },
+                {
+                    "source":"hybrid/hybrid.nimble",
+                    "target":"%{ProjectFile}",
+                    "openAsProject":true,
+                    "condition":"%{JS: value('ProjectType') === 'Hybrid'}"
+                },
+                {
+                    "source":"hybrid/src/hybrid.nim",
+                    "target":"%{ProjectDirectory}/src/%{ProjectName}.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Hybrid'}",
+                    "openInEditor": true
+                },
+                {
+                    "source":"hybrid/src/hybridpkg/submodule.nim",
+                    "target":"%{ProjectDirectory}/src/%{ProjectName}pkg/submodule.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Hybrid'}"
+                },
+                {
+                    "source":"hybrid/tests/config.nims",
+                    "target":"%{ProjectDirectory}/tests/config.nims",
+                    "condition":"%{JS: value('ProjectType') === 'Hybrid'}"
+                },
+                {
+                    "source":"hybrid/tests/test1.nim",
+                    "target":"%{ProjectDirectory}/tests/test1.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Hybrid'}"
+                },
+                {
+                    "source":"library/library.nimble",
+                    "target":"%{ProjectFile}",
+                    "openAsProject":true,
+                    "condition":"%{JS: value('ProjectType') === 'Library'}"
+                },
+                {
+                    "source":"library/src/library.nim",
+                    "target":"%{ProjectDirectory}/src/%{ProjectName}.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Library'}",
+                    "openInEditor": true
+                },
+                {
+                    "source":"library/src/library/submodule.nim",
+                    "target":"%{ProjectDirectory}/src/%{ProjectName}/submodule.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Library'}"
+                },
+                {
+                    "source":"library/tests/config.nims",
+                    "target":"%{ProjectDirectory}/tests/config.nims",
+                    "condition":"%{JS: value('ProjectType') === 'Library'}"
+                },
+                {
+                    "source":"library/tests/test1.nim",
+                    "target":"%{ProjectDirectory}/tests/test1.nim",
+                    "condition":"%{JS: value('ProjectType') === 'Library'}"
+                },
+                {
+                    "source":"../git.ignore",
+                    "target":"%{ProjectDirectory}/.gitignore",
+                    "condition":"%{JS: !value('IsSubproject') && value('VersionControl') === 'G.Git'}"
+                }
+            ]
+        }
+    ]
+}

src/plugins/nim/CMakeLists.txt

@@ -8,6 +8,14 @@ add_qtc_plugin(Nim
     nim.qrc
     nimconstants.h
     nimplugin.cpp nimplugin.h
+    project/nimblebuildstep.h project/nimblebuildstep.cpp
+    project/nimblebuildstepwidget.h project/nimblebuildstepwidget.cpp project/nimblebuildstepwidget.ui
+    project/nimbleproject.h project/nimbleproject.cpp
+    project/nimblerunconfiguration.h project/nimblerunconfiguration.cpp
+    project/nimbletaskstep.h project/nimbletaskstep.cpp
+    project/nimbletaskstepwidget.h project/nimbletaskstepwidget.cpp project/nimbletaskstepwidget.ui
+    project/nimblebuildsystem.h project/nimblebuildsystem.cpp
+    project/nimblebuildconfiguration.h project/nimblebuildconfiguration.cpp
     project/nimbuildsystem.cpp project/nimbuildsystem.h
     project/nimbuildconfiguration.cpp project/nimbuildconfiguration.h
     project/nimcompilerbuildstep.cpp project/nimcompilerbuildstep.h

src/plugins/nim/Nim.json.in

@@ -34,6 +34,12 @@
         \"        <glob pattern=\'*.nim\'/>\",
         \"    </mime-type>\",
 
+        \"    <mime-type type=\'text/x-nimble\'>\",
+        \"        <sub-class-of type=\'text/plain\'/>\",
+        \"        <comment>Nimble project file</comment>\",
+        \"        <glob pattern=\'*.nimble\'/>\",
+        \"    </mime-type>\",
+
         \"    <mime-type type=\'text/x-nim-script\'>\",
         \"        <sub-class-of type=\'text/plain\'/>\",
         \"        <comment>Nim script file</comment>\",

src/plugins/nim/nim.pro

@@ -14,9 +14,17 @@ HEADERS += \
     editor/nimcompletionassistprovider.h \
     editor/nimhighlighter.h \
     editor/nimindenter.h \
+    project/nimblebuildconfiguration.h \
+    project/nimblebuildstep.h \
+    project/nimblebuildstepwidget.h \
+    project/nimbleproject.h \
+    project/nimblerunconfiguration.h \
+    project/nimbletaskstep.h \
+    project/nimbletaskstepwidget.h \
     tools/nimlexer.h \
     tools/sourcecodestream.h \
     project/nimbuildsystem.h \
+    project/nimblebuildsystem.h \
     project/nimproject.h \
     project/nimprojectnode.h \
     project/nimbuildconfiguration.h \
@@ -45,8 +53,16 @@ SOURCES += \
     editor/nimcompletionassistprovider.cpp \
     editor/nimhighlighter.cpp \
     editor/nimindenter.cpp \
+    project/nimblebuildconfiguration.cpp \
+    project/nimblebuildstep.cpp \
+    project/nimbletaskstep.cpp \
+    project/nimblebuildstepwidget.cpp \
+    project/nimbleproject.cpp \
+    project/nimblerunconfiguration.cpp \
+    project/nimbletaskstepwidget.cpp \
     tools/nimlexer.cpp \
     project/nimbuildsystem.cpp \
+    project/nimblebuildsystem.cpp \
     project/nimproject.cpp \
     project/nimprojectnode.cpp \
     project/nimbuildconfiguration.cpp \
@@ -69,6 +85,8 @@ SOURCES += \
     suggest/server.cpp
 
 FORMS += \
+    project/nimblebuildstepwidget.ui \
+    project/nimbletaskstepwidget.ui \
     project/nimcompilerbuildstepconfigwidget.ui \
     settings/nimcodestylepreferenceswidget.ui \
     settings/nimtoolssettingswidget.ui

src/plugins/nim/nim.qbs

@@ -46,6 +46,14 @@ QtcPlugin {
             "nimrunconfiguration.h", "nimrunconfiguration.cpp",
             "nimtoolchain.h", "nimtoolchain.cpp",
             "nimtoolchainfactory.h", "nimtoolchainfactory.cpp",
+            "nimblebuildstep.h", "nimblebuildstep.cpp",
+            "nimblebuildstepwidget.h", "nimblebuildstepwidget.cpp", "nimblebuildstepwidget.ui",
+            "nimbleproject.h", "nimbleproject.cpp",
+            "nimblerunconfiguration.h", "nimblerunconfiguration.cpp",
+            "nimbletaskstep.h", "nimbletaskstep.cpp",
+            "nimbletaskstepwidget.h", "nimbletaskstepwidget.cpp", "nimbletaskstepwidget.ui",
+            "nimblebuildsystem.h", "nimblebuildsystem.cpp",
+            "nimblebuildconfiguration.h", "nimblebuildconfiguration.cpp",
         ]
     }
 

src/plugins/nim/nimconstants.h

@@ -32,6 +32,7 @@ namespace Nim {
 namespace Constants {
 
 const char C_NIMPROJECT_ID[] = "Nim.NimProject";
+const char C_NIMBLEPROJECT_ID[] = "Nim.NimbleProject";
 const char C_NIMEDITOR_ID[] = "Nim.NimEditor";
 const char C_EDITOR_DISPLAY_NAME[] = QT_TRANSLATE_NOOP("OpenWith::Editors", "Nim Editor");
 
@@ -39,11 +40,28 @@ const char C_EDITOR_DISPLAY_NAME[] = QT_TRANSLATE_NOOP("OpenWith::Editors", "Nim
 const char C_NIMTOOLCHAIN_TYPEID[] = "Nim.NimToolChain";
 const char C_NIMTOOLCHAIN_COMPILER_COMMAND_KEY[] = "Nim.NimToolChain.CompilerCommand";
 
+// NimbleProject
+const char C_NIMBLEPROJECT_TASKS[] = "Nim.NimbleProject.Tasks";
+const char C_NIMBLEPROJECT_METADATA[] = "Nim.NimbleProject.Metadata";
+
 // NimProject
 const char C_NIMPROJECT_EXCLUDEDFILES[] = "Nim.NimProjectExcludedFiles";
 
 // NimBuildConfiguration
 const char C_NIMBUILDCONFIGURATION_ID[] = "Nim.NimBuildConfiguration";
+const char C_NIMBLEBUILDCONFIGURATION_ID[] = "Nim.NimbleBuildConfiguration";
+const char C_NIMBLEBUILDCONFIGURATION_BUILDTYPE[] = "Nim.NimbleBuildConfiguration.BuildType";
+
+// NimbleBuildStep
+const char C_NIMBLEBUILDSTEP_ID[] = "Nim.NimbleBuildStep";
+const char C_NIMBLEBUILDSTEP_DISPLAY[] = QT_TRANSLATE_NOOP("NimbleBuildStep", "Nimble Build");
+const char C_NIMBLEBUILDSTEP_ARGUMENTS[] = "Nim.NimbleBuildStep.Arguments";
+
+// NimbleTaskStep
+const char C_NIMBLETASKSTEP_ID[] = "Nim.NimbleTaskStep";
+const char C_NIMBLETASKSTEP_DISPLAY[] = QT_TRANSLATE_NOOP("NimbleTaskStep", "Nimble Task");
+const QString C_NIMBLETASKSTEP_TASKNAME = QStringLiteral("Nim.NimbleTaskStep.TaskName");
+const QString C_NIMBLETASKSTEP_TASKARGS = QStringLiteral("Nim.NimbleTaskStep.TaskArgs");
 
 // NimCompilerBuildStep
 const char C_NIMCOMPILERBUILDSTEP_ID[] = "Nim.NimCompilerBuildStep";
@@ -92,6 +110,7 @@ const char C_NIMCODESTYLEPREVIEWSNIPPET[] =
  * MIME type
  ******************************************************************************/
 const char C_NIM_MIMETYPE[] = "text/x-nim";
+const char C_NIMBLE_MIMETYPE[] = "text/x-nimble";
 const char C_NIM_SCRIPT_MIMETYPE[] = "text/x-nim-script";
 const char C_NIM_MIME_ICON[] = "text-x-nim";
 const char C_NIM_PROJECT_MIMETYPE[] = "text/x-nim-project";

src/plugins/nim/nimplugin.cpp

@@ -28,12 +28,17 @@
 #include "nimconstants.h"
 #include "editor/nimeditorfactory.h"
 #include "editor/nimhighlighter.h"
+#include "project/nimblerunconfiguration.h"
+#include "project/nimblebuildconfiguration.h"
 #include "project/nimbuildconfiguration.h"
 #include "project/nimcompilerbuildstep.h"
 #include "project/nimcompilercleanstep.h"
 #include "project/nimproject.h"
+#include "project/nimbleproject.h"
 #include "project/nimrunconfiguration.h"
 #include "project/nimtoolchainfactory.h"
+#include "project/nimblebuildstep.h"
+#include "project/nimbletaskstep.h"
 #include "settings/nimcodestylepreferencesfactory.h"
 #include "settings/nimcodestylesettingspage.h"
 #include "settings/nimtoolssettingspage.h"
@@ -66,12 +71,21 @@ public:
     NimSettings settings;
     NimEditorFactory editorFactory;
     NimBuildConfigurationFactory buildConfigFactory;
-    NimRunConfigurationFactory runConfigFactory;
-    RunWorkerFactory runWorkerFactory{
+    NimbleBuildConfigurationFactory nimbleBuildConfigFactory;
+    NimRunConfigurationFactory nimRunConfigFactory;
+    NimbleRunConfigurationFactory nimbleRunConfigFactory;
+    RunWorkerFactory nimRunWorkerFactory {
         RunWorkerFactory::make<SimpleTargetRunner>(),
         {ProjectExplorer::Constants::NORMAL_RUN_MODE},
-        {runConfigFactory.id()}
+        {nimRunConfigFactory.id()}
     };
+    RunWorkerFactory nimbleRunWorkerFactory {
+        RunWorkerFactory::make<SimpleTargetRunner>(),
+        {ProjectExplorer::Constants::NORMAL_RUN_MODE},
+        {nimbleRunConfigFactory.id()}
+    };
+    NimbleBuildStepFactory nimbleBuildStepFactory;
+    NimbleTaskStepFactory nimbleTaskStepFactory;
     NimCompilerBuildStepFactory buildStepFactory;
     NimCompilerCleanStepFactory cleanStepFactory;
     NimCodeStyleSettingsPage codeStyleSettingsPage;
@@ -99,6 +113,7 @@ bool NimPlugin::initialize(const QStringList &arguments, QString *errorMessage)
                                                &NimEditorFactory::decorateEditor);
 
     ProjectManager::registerProjectType<NimProject>(Constants::C_NIM_PROJECT_MIMETYPE);
+    ProjectManager::registerProjectType<NimbleProject>(Constants::C_NIMBLE_MIMETYPE);
 
     return true;
 }
@@ -112,6 +127,7 @@ void NimPlugin::extensionsInitialized()
     if (!icon.isNull()) {
         Core::FileIconProvider::registerIconOverlayForMimeType(icon, Constants::C_NIM_MIMETYPE);
         Core::FileIconProvider::registerIconOverlayForMimeType(icon, Constants::C_NIM_SCRIPT_MIMETYPE);
+        Core::FileIconProvider::registerIconOverlayForMimeType(icon, Constants::C_NIMBLE_MIMETYPE);
     }
 }
 

src/plugins/nim/project/nimblebuildconfiguration.cpp

@@ -0,0 +1,144 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimblebuildconfiguration.h"
+#include "nimconstants.h"
+#include "nimblebuildstep.h"
+#include "nimbleproject.h"
+
+#include <projectexplorer/buildinfo.h>
+#include <projectexplorer/buildstep.h>
+#include <projectexplorer/buildsteplist.h>
+#include <projectexplorer/kit.h>
+#include <projectexplorer/project.h>
+#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projectmacroexpander.h>
+#include <utils/fileutils.h>
+#include <utils/osspecificaspects.h>
+
+#include <QFileInfo>
+#include <QDir>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+using namespace Utils;
+
+NimbleBuildConfiguration::NimbleBuildConfiguration(Target *target, Core::Id id)
+    : BuildConfiguration(target, id)
+{
+    setConfigWidgetDisplayName(tr("General"));
+    setConfigWidgetHasFrame(true);
+    setBuildDirectorySettingsKey("Nim.NimbleBuildConfiguration.BuildDirectory");
+
+    m_nimbleProject = dynamic_cast<NimbleProject*>(project());
+    QTC_ASSERT(m_nimbleProject, return);
+    QObject::connect(m_nimbleProject, &NimbleProject::metadataChanged, this, &NimbleBuildConfiguration::updateApplicationTargets);
+    updateApplicationTargets();
+}
+
+BuildConfiguration::BuildType NimbleBuildConfiguration::buildType() const
+{
+    return m_buildType;
+}
+
+void NimbleBuildConfiguration::initialize()
+{
+    BuildConfiguration::initialize();
+
+    m_buildType = initialBuildType();
+
+    setBuildDirectory(project()->projectDirectory());
+
+    // Don't add a nimble build step when the package has no binaries (i.e a library package)
+    if (!m_nimbleProject->metadata().bin.empty())
+    {
+        BuildStepList *buildSteps = stepList(ProjectExplorer::Constants::BUILDSTEPS_BUILD);
+        buildSteps->appendStep(new NimbleBuildStep(buildSteps));
+    }
+}
+
+void NimbleBuildConfiguration::updateApplicationTargets()
+{
+    QTC_ASSERT(m_nimbleProject, return);
+
+    const NimbleMetadata &metaData = m_nimbleProject->metadata();
+    const FilePath &projectDir = project()->projectDirectory();
+    const FilePath binDir = projectDir.pathAppended(metaData.binDir);
+    const FilePath srcDir = projectDir.pathAppended("src");
+
+    QList<BuildTargetInfo> targets = Utils::transform(metaData.bin, [&](const QString &bin){
+        BuildTargetInfo info = {};
+        info.displayName = bin;
+        info.targetFilePath = binDir.pathAppended(HostOsInfo::withExecutableSuffix(bin));
+        info.projectFilePath = srcDir.pathAppended(bin).stringAppended(".nim");
+        info.workingDirectory = binDir;
+        info.buildKey = bin;
+        return info;
+    });
+
+    target()->setApplicationTargets(std::move(targets));
+}
+
+bool NimbleBuildConfiguration::fromMap(const QVariantMap &map)
+{
+    m_buildType = static_cast<BuildType>(map[Constants::C_NIMBLEBUILDCONFIGURATION_BUILDTYPE].toInt());
+    return BuildConfiguration::fromMap(map);
+}
+
+QVariantMap NimbleBuildConfiguration::toMap() const
+{
+    auto map = BuildConfiguration::toMap();
+    map[Constants::C_NIMBLEBUILDCONFIGURATION_BUILDTYPE] = buildType();
+    return map;
+}
+
+
+NimbleBuildConfigurationFactory::NimbleBuildConfigurationFactory()
+{
+    registerBuildConfiguration<NimbleBuildConfiguration>(Constants::C_NIMBLEBUILDCONFIGURATION_ID);
+    setSupportedProjectType(Constants::C_NIMBLEPROJECT_ID);
+    setSupportedProjectMimeTypeName(Constants::C_NIMBLE_MIMETYPE);
+}
+
+QList<BuildInfo> NimbleBuildConfigurationFactory::availableBuilds(const Kit *k, const Utils::FilePath &projectPath, bool forSetup) const
+{
+    static const QList<BuildConfiguration::BuildType> configurations = {BuildConfiguration::Debug, BuildConfiguration::Release};
+    return Utils::transform(configurations, [&](BuildConfiguration::BuildType buildType){
+        BuildInfo info(this);
+        info.buildType = buildType;
+        info.kitId = k->id();
+
+        if (buildType == BuildConfiguration::Debug)
+            info.typeName = tr("Debug");
+        else if (buildType == BuildConfiguration::Release)
+            info.typeName = tr("Release");
+
+        if (forSetup) {
+            info.displayName = info.typeName;
+            info.buildDirectory = projectPath.parentDir();
+        }
+        return info;
+    });
+}

src/plugins/nim/project/nimblebuildconfiguration.h

@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/buildconfiguration.h>
+#include <projectexplorer/target.h>
+
+namespace Nim {
+
+class NimbleProject;
+
+class NimbleBuildConfiguration : public ProjectExplorer::BuildConfiguration
+{
+    Q_OBJECT
+
+    friend class ProjectExplorer::BuildConfigurationFactory;
+
+    NimbleBuildConfiguration(ProjectExplorer::Target *target, Core::Id id);
+
+    BuildType buildType() const override;
+
+    bool fromMap(const QVariantMap &map) override;
+
+    QVariantMap toMap() const override;
+
+protected:
+    void initialize() override;
+
+    void updateApplicationTargets();
+
+private:
+    NimbleProject *m_nimbleProject = nullptr;
+    BuildType m_buildType;
+};
+
+class NimbleBuildConfigurationFactory : public ProjectExplorer::BuildConfigurationFactory
+{
+    Q_OBJECT
+
+public:
+    NimbleBuildConfigurationFactory();
+
+private:
+    QList<ProjectExplorer::BuildInfo> availableBuilds(const ProjectExplorer::Kit *k,
+                                                      const Utils::FilePath &projectPath,
+                                                      bool forSetup) const override;
+};
+
+}

src/plugins/nim/project/nimblebuildstep.cpp

@@ -0,0 +1,189 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimblebuildstep.h"
+#include "nimblebuildstepwidget.h"
+#include "nimbletaskstepwidget.h"
+#include "nimconstants.h"
+#include "nimbleproject.h"
+
+#include <projectexplorer/buildconfiguration.h>
+#include <projectexplorer/ioutputparser.h>
+#include <projectexplorer/processparameters.h>
+#include <projectexplorer/projectexplorerconstants.h>
+
+#include <QRegularExpression>
+#include <QStandardPaths>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+using namespace Utils;
+
+namespace {
+
+class NimParser : public IOutputParser
+{
+public:
+    void stdOutput(const QString &line) final
+    {
+        parseLine(line.trimmed());
+        IOutputParser::stdOutput(line);
+    }
+
+    void stdError(const QString &line) final
+    {
+        parseLine(line.trimmed());
+        IOutputParser::stdError(line);
+    }
+
+private:
+    void parseLine(const QString &line)
+    {
+        static QRegularExpression regex("(.+.nim)\\((\\d+), (\\d+)\\) (.+)",
+                                        QRegularExpression::OptimizeOnFirstUsageOption);
+        static QRegularExpression warning("(Warning):(.*)",
+                                          QRegularExpression::OptimizeOnFirstUsageOption);
+        static QRegularExpression error("(Error):(.*)",
+                                        QRegularExpression::OptimizeOnFirstUsageOption);
+
+        QRegularExpressionMatch match = regex.match(line);
+        if (!match.hasMatch())
+            return;
+        const QString filename = match.captured(1);
+        bool lineOk = false;
+        const int lineNumber = match.captured(2).toInt(&lineOk);
+        const QString message = match.captured(4);
+        if (!lineOk)
+            return;
+
+        Task::TaskType type = Task::Unknown;
+
+        if (warning.match(message).hasMatch())
+            type = Task::Warning;
+        else if (error.match(message).hasMatch())
+            type = Task::Error;
+        else
+            return;
+
+        Task task(type,
+                  message,
+                  Utils::FilePath::fromUserInput(filename),
+                  lineNumber,
+                  ProjectExplorer::Constants::TASK_CATEGORY_COMPILE);
+        emit addTask(task);
+    }
+};
+
+}
+
+NimbleBuildStep::NimbleBuildStep(BuildStepList *parentList)
+    : AbstractProcessStep(parentList, Constants::C_NIMBLEBUILDSTEP_ID)
+{
+    setDefaultDisplayName(tr(Constants::C_NIMBLEBUILDSTEP_DISPLAY));
+    setDisplayName(tr(Constants::C_NIMBLEBUILDSTEP_DISPLAY));
+    QTC_ASSERT(buildConfiguration(), return);
+    QObject::connect(buildConfiguration(), &BuildConfiguration::buildTypeChanged, this, &NimbleBuildStep::resetArguments);
+    QObject::connect(this, &NimbleBuildStep::argumentsChanged, this, &NimbleBuildStep::onArgumentsChanged);
+    resetArguments();
+}
+
+bool NimbleBuildStep::init()
+{
+    auto parser = new NimParser();
+    parser->setWorkingDirectory(project()->projectDirectory());
+    setOutputParser(parser);
+
+    ProcessParameters* params = processParameters();
+    params->setEnvironment(buildConfiguration()->environment());
+    params->setMacroExpander(buildConfiguration()->macroExpander());
+    params->setWorkingDirectory(project()->projectDirectory());
+    params->setCommandLine({QStandardPaths::findExecutable("nimble"), {"build", m_arguments}});
+    return AbstractProcessStep::init();
+}
+
+BuildStepConfigWidget *NimbleBuildStep::createConfigWidget()
+{
+    return new NimbleBuildStepWidget(this);
+}
+
+QString NimbleBuildStep::arguments() const
+{
+    return m_arguments;
+}
+
+void NimbleBuildStep::setArguments(const QString &args)
+{
+    if (m_arguments == args)
+        return;
+    m_arguments = args;
+    emit argumentsChanged(args);
+}
+
+void NimbleBuildStep::resetArguments()
+{
+    setArguments(defaultArguments());
+}
+
+bool NimbleBuildStep::fromMap(const QVariantMap &map)
+{
+    m_arguments = map.value(Constants::C_NIMBLEBUILDSTEP_ARGUMENTS, defaultArguments()).toString();
+    return AbstractProcessStep::fromMap(map);
+}
+
+QVariantMap NimbleBuildStep::toMap() const
+{
+    auto map = AbstractProcessStep::toMap();
+    map[Constants::C_NIMBLEBUILDSTEP_ARGUMENTS] = m_arguments;
+    return map;
+}
+
+QString NimbleBuildStep::defaultArguments() const
+{
+    QTC_ASSERT(buildConfiguration(), return {}; );
+    switch (buildConfiguration()->buildType()) {
+    case ProjectExplorer::BuildConfiguration::Debug:
+        return "--debugger:native";
+    case ProjectExplorer::BuildConfiguration::Unknown:
+    case ProjectExplorer::BuildConfiguration::Profile:
+    case ProjectExplorer::BuildConfiguration::Release:
+    default:
+        return "";
+    }
+}
+
+void NimbleBuildStep::onArgumentsChanged()
+{
+    ProcessParameters* params = processParameters();
+    params->setCommandLine({QStandardPaths::findExecutable("nimble"), {"build", m_arguments}});
+}
+
+NimbleBuildStepFactory::NimbleBuildStepFactory()
+{
+    registerStep<NimbleBuildStep>(Constants::C_NIMBLEBUILDSTEP_ID);
+    setDisplayName(NimbleBuildStep::tr("Nimble Build"));
+    setSupportedStepList(ProjectExplorer::Constants::BUILDSTEPS_BUILD);
+    setSupportedConfiguration(Constants::C_NIMBLEBUILDCONFIGURATION_ID);
+    setRepeatable(true);
+}

src/plugins/nim/project/nimblebuildstep.h

@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/abstractprocessstep.h>
+
+namespace Nim {
+
+class NimbleBuildStep : public ProjectExplorer::AbstractProcessStep
+{
+    Q_OBJECT
+
+public:
+    NimbleBuildStep(ProjectExplorer::BuildStepList *parentList);
+
+    bool init() override;
+
+    ProjectExplorer::BuildStepConfigWidget *createConfigWidget() override;
+
+    QString arguments() const;
+
+    void setArguments(const QString &args);
+
+    void resetArguments();
+
+    bool fromMap(const QVariantMap &map) override;
+
+    QVariantMap toMap() const override;
+
+signals:
+    void argumentsChanged(const QString &args);
+
+private:
+    QString defaultArguments() const;
+
+    void onArgumentsChanged();
+
+    QString m_arguments;
+};
+
+class NimbleBuildStepFactory : public ProjectExplorer::BuildStepFactory
+{
+public:
+    NimbleBuildStepFactory();
+};
+
+}

src/plugins/nim/project/nimblebuildstepwidget.cpp

@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimblebuildstepwidget.h"
+#include "ui_nimblebuildstepwidget.h"
+
+#include "nimblebuildstep.h"
+#include "nimbleproject.h"
+
+#include <QAction>
+
+#include <projectexplorer/buildconfiguration.h>
+#include <utils/utilsicons.h>
+
+
+using namespace Nim;
+using namespace ProjectExplorer;
+
+NimbleBuildStepWidget::NimbleBuildStepWidget(NimbleBuildStep *bs)
+    : BuildStepConfigWidget(bs)
+    , ui(new Ui::NimbleBuildStepWidget)
+{
+    ui->setupUi(this);
+
+    ui->argumentsLineEdit->setText(bs->arguments());
+    QObject::connect(bs, &NimbleBuildStep::argumentsChanged, ui->argumentsLineEdit, &QLineEdit::setText);
+    QObject::connect(ui->argumentsLineEdit, &QLineEdit::textEdited, bs, &NimbleBuildStep::setArguments);
+
+    ui->resetButton->setIcon(Utils::Icons::RESET.icon());
+    QObject::connect(ui->resetButton, &QToolButton::triggered, bs, &NimbleBuildStep::resetArguments);
+}
+
+NimbleBuildStepWidget::~NimbleBuildStepWidget()
+{
+    delete ui;
+}

src/plugins/nim/project/nimblebuildstepwidget.h

@@ -0,0 +1,50 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/buildstep.h>
+#include <projectexplorer/buildconfiguration.h>
+
+namespace Nim {
+
+class NimbleBuildStep;
+
+namespace Ui { class NimbleBuildStepWidget; }
+
+class NimbleBuildStepWidget : public ProjectExplorer::BuildStepConfigWidget
+{
+    Q_OBJECT
+
+public:
+    explicit NimbleBuildStepWidget(NimbleBuildStep *bs);
+
+    ~NimbleBuildStepWidget();
+
+private:
+    Ui::NimbleBuildStepWidget *ui;
+};
+
+}

src/plugins/nim/project/nimblebuildstepwidget.ui

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Nim::NimbleBuildStepWidget</class>
+ <widget class="QWidget" name="Nim::NimbleBuildStepWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>50</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="argumentsLabel">
+       <property name="text">
+        <string>Arguments:</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="argumentsLineEdit"/>
+     </item>
+     <item>
+      <widget class="QToolButton" name="resetButton">
+       <property name="toolTip">
+        <string>Reset to Default</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/plugins/nim/project/nimblebuildsystem.cpp

@@ -0,0 +1,149 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimblebuildsystem.h"
+#include "nimbleproject.h"
+
+#include <utils/algorithm.h>
+#include <utils/qtcassert.h>
+
+#include <QProcess>
+#include <QStandardPaths>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+using namespace Utils;
+
+namespace {
+
+std::vector<NimbleTask> parseTasks(const QString &nimblePath, const QString &workingDirectory)
+{
+    QProcess process;
+    process.setWorkingDirectory(workingDirectory);
+    process.start(QStandardPaths::findExecutable(nimblePath), {"tasks"});
+    process.waitForFinished();
+
+    std::vector<NimbleTask> result;
+
+    QList<QByteArray> lines = process.readAllStandardOutput().split('\n');
+    lines = Utils::transform(lines, [](const QByteArray &line){ return line.trimmed(); });
+    Utils::erase(lines, [](const QByteArray &line) { return line.isEmpty(); });
+
+    for (const QByteArray &line : lines) {
+        QList<QByteArray> tokens = line.trimmed().split(' ');
+        QTC_ASSERT(!tokens.empty(), continue);
+        QString taskName = QString::fromUtf8(tokens.takeFirst());
+        QString taskDesc = QString::fromUtf8(tokens.join(' '));
+        result.push_back({std::move(taskName), std::move(taskDesc)});
+    }
+
+    return result;
+}
+
+NimbleMetadata parseMetadata(const QString &nimblePath, const QString &workingDirectory) {
+    QProcess process;
+    process.setWorkingDirectory(workingDirectory);
+    process.start(QStandardPaths::findExecutable(nimblePath), {"dump"});
+    process.waitForFinished();
+
+    NimbleMetadata result = {};
+
+    QList<QByteArray> lines = process.readAllStandardOutput().split('\n');
+    lines = Utils::transform(lines, [](const QByteArray &line){ return line.trimmed(); });
+    Utils::erase(lines, [](const QByteArray &line) { return line.isEmpty(); });
+
+    for (const QByteArray &line : lines) {
+        QList<QByteArray> tokens = line.trimmed().split(':');
+        QTC_ASSERT(tokens.size() == 2, continue);
+        QString name = QString::fromUtf8(tokens.takeFirst()).trimmed();
+        QString value = QString::fromUtf8(tokens.takeFirst()).trimmed();
+        QTC_ASSERT(value.size() >= 2, continue);
+        QTC_ASSERT(value.front() == QChar('"'), continue);
+        QTC_ASSERT(value.back() == QChar('"'), continue);
+        value.remove(0, 1);
+        value.remove(value.size() - 1, 1);
+
+        if (name == "binDir")
+            result.binDir = value;
+        else if (name == "srcDir")
+            result.srcDir = value;
+        else if (name == "bin") {
+            QStringList bin = value.split(',');
+            bin = Utils::transform(bin, [](const QString &x){ return x.trimmed(); });
+            Utils::erase(bin, [](const QString &x) { return x.isEmpty(); });
+            result.bin = std::move(bin);
+        }
+    }
+
+    return result;
+}
+
+}
+
+NimbleBuildSystem::NimbleBuildSystem(Project *project)
+    : NimBuildSystem(project)
+{
+}
+
+void NimbleBuildSystem::parseProject(BuildSystem::ParsingContext &&ctx)
+{
+    NimBuildSystem::parseProject(std::move(ctx));
+}
+
+void NimbleBuildSystem::updateProject()
+{
+    updateProjectMetaData();
+    updateProjectTasks();
+}
+
+void NimbleBuildSystem::init()
+{
+    // Not called in parseProject due to nimble behavior to create temporary
+    // files in project directory. This creation in turn stimulate the fs watcher
+    // that in turn causes project parsing (thus a loop if invoke in parseProject).
+    // For this reason we call this function manually during project creation
+    // See https://github.com/nim-lang/nimble/issues/720
+    m_directoryWatcher.addFile(project()->projectFilePath().toString(), FileSystemWatcher::WatchModifiedDate);
+    connect(&m_directoryWatcher, &FileSystemWatcher::fileChanged, this, [this](const QString &path) {
+        if (path == project()->projectFilePath().toString()) {
+            updateProject();
+        }
+    });
+    updateProject();
+}
+
+void NimbleBuildSystem::updateProjectTasks()
+{
+    auto prj = dynamic_cast<NimbleProject*>(project());
+    QTC_ASSERT(prj, return);
+    prj->setTasks(parseTasks(QStandardPaths::findExecutable("nimble"), project()->projectDirectory().toString()));
+}
+
+void NimbleBuildSystem::updateProjectMetaData()
+{
+    auto prj = dynamic_cast<NimbleProject*>(project());
+    QTC_ASSERT(prj, return);
+    prj->setMetadata(parseMetadata(QStandardPaths::findExecutable("nimble"), project()->projectDirectory().toString()));
+}

src/plugins/nim/project/nimblebuildsystem.h

@@ -0,0 +1,49 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <nim/project/nimbuildsystem.h>
+
+namespace Nim {
+
+class NimbleBuildSystem : public NimBuildSystem
+{
+    Q_OBJECT
+
+public:
+    NimbleBuildSystem(ProjectExplorer::Project *project);
+
+    void init();
+
+protected:
+    void parseProject(ParsingContext &&ctx) override;
+
+    void updateProject();
+    void updateProjectTasks();
+    void updateProjectMetaData();
+};
+
+}

src/plugins/nim/project/nimbleproject.cpp

@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimbleproject.h"
+#include "nimconstants.h"
+#include "nimblebuildsystem.h"
+
+#include <coreplugin/icontext.h>
+#include <projectexplorer/projectexplorerconstants.h>
+#include <utils/qtcassert.h>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+
+NimbleProject::NimbleProject(const Utils::FilePath &fileName)
+    : ProjectExplorer::Project(Constants::C_NIMBLE_MIMETYPE, fileName)
+{
+    setId(Constants::C_NIMBLEPROJECT_ID);
+    setDisplayName(fileName.toFileInfo().completeBaseName());
+    // ensure debugging is enabled (Nim plugin translates nim code to C code)
+    setProjectLanguages(Core::Context(ProjectExplorer::Constants::CXX_LANGUAGE_ID));
+    auto bs = std::make_unique<NimbleBuildSystem>(this);
+    bs->init();
+    setBuildSystem(std::move(bs));
+}
+
+std::vector<NimbleTask> NimbleProject::tasks() const
+{
+    return m_tasks;
+}
+
+NimbleMetadata NimbleProject::metadata() const
+{
+    return m_metadata;
+}
+
+void NimbleProject::setTasks(std::vector<NimbleTask> tasks)
+{
+    if (tasks == m_tasks)
+        return;
+    m_tasks = std::move(tasks);
+    emit tasksChanged(m_tasks);
+}
+
+void NimbleProject::setMetadata(NimbleMetadata metadata)
+{
+    if (m_metadata == metadata)
+        return;
+    m_metadata = std::move(metadata);
+    emit metadataChanged(m_metadata);
+}
+
+QVariantMap NimbleProject::toMap() const
+{
+    QVariantMap result = Project::toMap();
+    result[Constants::C_NIMPROJECT_EXCLUDEDFILES] = static_cast<NimBuildSystem *>(buildSystem())
+                                                        ->excludedFiles();
+    result[Constants::C_NIMBLEPROJECT_TASKS] = toStringList(m_tasks);
+    return result;
+}
+
+Project::RestoreResult NimbleProject::fromMap(const QVariantMap &map, QString *errorMessage)
+{
+    static_cast<NimBuildSystem *>(buildSystem())
+        ->setExcludedFiles(map.value(Constants::C_NIMPROJECT_EXCLUDEDFILES).toStringList());
+    Project::RestoreResult result = Project::RestoreResult::Error;
+    std::tie(result, m_tasks) = fromStringList(map.value(Constants::C_NIMBLEPROJECT_TASKS).toStringList());
+    return result == Project::RestoreResult::Ok ? Project::fromMap(map, errorMessage) : result;
+}
+
+QStringList NimbleProject::toStringList(const std::vector<NimbleTask> &tasks)
+{
+    QStringList result;
+    for (const NimbleTask &task : tasks) {
+        result.push_back(task.name);
+        result.push_back(task.description);
+    }
+    return result;
+}
+
+std::tuple<Project::RestoreResult, std::vector<NimbleTask>> NimbleProject::fromStringList(const QStringList &list)
+{
+    if (list.size() % 2 != 0)
+        return {Project::RestoreResult::Error, {}};
+
+    std::vector<NimbleTask> result;
+    for (int i = 0; i < list.size(); i += 2)
+        result.push_back({list[i], list[i + 1]});
+    return {Project::RestoreResult::Ok, std::move(result)};
+}

src/plugins/nim/project/nimbleproject.h

@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/project.h>
+
+namespace Nim {
+
+struct NimbleTask
+{
+    QString name;
+    QString description;
+
+    bool operator==(const NimbleTask &o) const {
+        return name == o.name && description == o.description;
+    }
+};
+
+struct NimbleMetadata
+{
+    QStringList bin;
+    QString binDir;
+    QString srcDir;
+
+    bool operator==(const NimbleMetadata &o) const {
+        return bin == o.bin && binDir == o.binDir && srcDir == o.srcDir;
+    }
+};
+
+class NimbleProject : public ProjectExplorer::Project
+{
+    Q_OBJECT
+
+public:
+    NimbleProject(const Utils::FilePath &filename);
+
+    std::vector<NimbleTask> tasks() const;
+
+    NimbleMetadata metadata() const;
+
+    void setTasks(std::vector<NimbleTask> tasks);
+
+    void setMetadata(NimbleMetadata metadata);
+
+    // Keep for compatibility with Qt Creator 4.10
+    QVariantMap toMap() const final;
+
+signals:
+    void tasksChanged(std::vector<NimbleTask>);
+    void metadataChanged(NimbleMetadata);
+
+protected:
+    // Keep for compatibility with Qt Creator 4.10
+    RestoreResult fromMap(const QVariantMap &map, QString *errorMessage) final;
+
+private:
+    static QStringList toStringList(const std::vector<NimbleTask> &tasks);
+
+    static std::tuple<RestoreResult, std::vector<NimbleTask>> fromStringList(const QStringList &list);
+
+    NimbleMetadata m_metadata;
+    std::vector<NimbleTask> m_tasks;
+};
+
+}

src/plugins/nim/project/nimblerunconfiguration.cpp

@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimblerunconfiguration.h"
+#include "nimconstants.h"
+#include "nimbleproject.h"
+
+#include <projectexplorer/localenvironmentaspect.h>
+#include <projectexplorer/runconfigurationaspects.h>
+#include <projectexplorer/runcontrol.h>
+#include <projectexplorer/target.h>
+
+#include <utils/algorithm.h>
+#include <utils/environment.h>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+
+NimbleRunConfiguration::NimbleRunConfiguration(ProjectExplorer::Target *target, Core::Id id)
+    : RunConfiguration(target, id)
+{
+    auto project = dynamic_cast<NimbleProject*>(target->project());
+    QTC_ASSERT(project, return);
+
+    addAspect<LocalEnvironmentAspect>(target);
+    addAspect<ExecutableAspect>();
+    addAspect<ArgumentsAspect>();
+    addAspect<WorkingDirectoryAspect>();
+    addAspect<TerminalAspect>();
+
+    connect(project, &Project::parsingFinished,
+            this, &NimbleRunConfiguration::updateTargetInformation);
+    connect(project, &NimbleProject::metadataChanged,
+            this, &NimbleRunConfiguration::updateTargetInformation);
+    connect(project, &NimbleProject::tasksChanged,
+            this, &NimbleRunConfiguration::updateTargetInformation);
+
+    updateTargetInformation();
+}
+
+NimbleRunConfiguration::~NimbleRunConfiguration()
+{
+
+}
+
+void NimbleRunConfiguration::updateTargetInformation()
+{
+    BuildTargetInfo bti = buildTargetInfo();
+    setDisplayName(bti.displayName);
+    setDefaultDisplayName(bti.displayName);
+    aspect<ExecutableAspect>()->setExecutable(bti.targetFilePath);
+    aspect<WorkingDirectoryAspect>()->setDefaultWorkingDirectory(bti.workingDirectory);
+}
+
+bool NimbleRunConfiguration::isBuildTargetValid() const
+{
+    return Utils::anyOf(target()->applicationTargets(), [this](const BuildTargetInfo &bti) {
+        return bti.buildKey == buildKey();
+    });
+}
+
+QString NimbleRunConfiguration::disabledReason() const
+{
+    if (!isBuildTargetValid())
+        return tr("The project no longer builds the target associated with this run configuration.");
+    return RunConfiguration::disabledReason();
+}
+
+void NimbleRunConfiguration::updateEnabledState()
+{
+    if (!isBuildTargetValid())
+        setEnabled(false);
+    else
+        RunConfiguration::updateEnabledState();
+}
+
+NimbleRunConfigurationFactory::NimbleRunConfigurationFactory()
+    : RunConfigurationFactory()
+{
+    registerRunConfiguration<NimbleRunConfiguration>("Nim.NimbleRunConfiguration");
+    addSupportedProjectType(Constants::C_NIMBLEPROJECT_ID);
+    addSupportedTargetDeviceType(ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE);
+}
+
+QList<RunConfigurationCreationInfo> NimbleRunConfigurationFactory::availableCreators(Target *parent) const
+{
+    return RunConfigurationFactory::availableCreators(parent);
+}

src/plugins/nim/project/nimblerunconfiguration.h

@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/runconfiguration.h>
+
+namespace Nim {
+
+class NimbleRunConfiguration : public ProjectExplorer::RunConfiguration
+{
+    Q_OBJECT
+
+public:
+    NimbleRunConfiguration(ProjectExplorer::Target *target, Core::Id id);
+
+    ~NimbleRunConfiguration();
+
+    QString disabledReason() const override;
+
+protected:
+    void updateEnabledState() override;
+
+private:
+    void updateTargetInformation();
+
+    bool isBuildTargetValid() const;
+};
+
+class NimbleRunConfigurationFactory : public ProjectExplorer::RunConfigurationFactory
+{
+public:
+    NimbleRunConfigurationFactory();
+
+protected:
+    QList<ProjectExplorer::RunConfigurationCreationInfo> availableCreators(ProjectExplorer::Target *parent) const override;
+};
+
+}

src/plugins/nim/project/nimbletaskstep.cpp

@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimbletaskstep.h"
+#include "nimbletaskstepwidget.h"
+#include "nimconstants.h"
+#include "nimbleproject.h"
+
+#include <projectexplorer/buildstep.h>
+#include <projectexplorer/buildconfiguration.h>
+#include <projectexplorer/processparameters.h>
+#include <utils/fileutils.h>
+
+#include <QStandardPaths>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+
+NimbleTaskStep::NimbleTaskStep(BuildStepList *parentList)
+    : AbstractProcessStep(parentList, Constants::C_NIMBLETASKSTEP_ID)
+{
+    setDefaultDisplayName(tr(Constants::C_NIMBLETASKSTEP_DISPLAY));
+    setDisplayName(tr(Constants::C_NIMBLETASKSTEP_DISPLAY));
+}
+
+bool NimbleTaskStep::init()
+{
+    processParameters()->setEnvironment(buildConfiguration()->environment());
+    processParameters()->setWorkingDirectory(project()->projectDirectory());
+    return validate() && AbstractProcessStep::init();
+}
+
+BuildStepConfigWidget *NimbleTaskStep::createConfigWidget()
+{
+    return new NimbleTaskStepWidget(this);
+}
+
+bool NimbleTaskStep::fromMap(const QVariantMap &map)
+{
+    setTaskName(map.value(Constants::C_NIMBLETASKSTEP_TASKNAME, QString()).toString());
+    setTaskArgs(map.value(Constants::C_NIMBLETASKSTEP_TASKARGS, QString()).toString());
+    return validate() ? AbstractProcessStep::fromMap(map) : false;
+}
+
+QVariantMap NimbleTaskStep::toMap() const
+{
+    QVariantMap result = AbstractProcessStep::toMap();
+    result[Constants::C_NIMBLETASKSTEP_TASKNAME] = taskName();
+    result[Constants::C_NIMBLETASKSTEP_TASKARGS] = taskArgs();
+    return result;
+}
+
+void NimbleTaskStep::setTaskName(const QString &name)
+{
+    if (m_taskName == name)
+        return;
+    m_taskName = name;
+    emit taskNameChanged(name);
+    updateCommandLine();
+}
+
+void NimbleTaskStep::setTaskArgs(const QString &args)
+{
+    if (m_taskArgs == args)
+        return;
+    m_taskArgs = args;
+    emit taskArgsChanged(args);
+    updateCommandLine();
+}
+
+void NimbleTaskStep::updateCommandLine()
+{
+    QString args = m_taskName + " " + m_taskArgs;
+    Utils::CommandLine commandLine(Utils::FilePath::fromString(QStandardPaths::findExecutable("nimble")),
+                                   args, Utils::CommandLine::Raw);
+
+    processParameters()->setCommandLine(commandLine);
+}
+
+bool NimbleTaskStep::validate()
+{
+    if (m_taskName.isEmpty())
+        return true;
+
+    auto nimbleProject = dynamic_cast<NimbleProject*>(project());
+    QTC_ASSERT(nimbleProject, return false);
+
+    if (!Utils::contains(nimbleProject->tasks(), [this](const NimbleTask &task){ return task.name == m_taskName; })) {
+        emit addTask(Task(Task::Error,
+                          tr("Nimble task %1 not found").arg(m_taskName),
+                          Utils::FilePath(), -1,
+                          ProjectExplorer::Constants::TASK_CATEGORY_BUILDSYSTEM));
+
+        emitFaultyConfigurationMessage();
+        return false;
+    }
+
+    return true;
+}
+
+NimbleTaskStepFactory::NimbleTaskStepFactory()
+{
+    registerStep<NimbleTaskStep>(Constants::C_NIMBLETASKSTEP_ID);
+    setDisplayName(NimbleTaskStep::tr("Nimble Task"));
+    setSupportedStepLists({ProjectExplorer::Constants::BUILDSTEPS_BUILD,
+                           ProjectExplorer::Constants::BUILDSTEPS_CLEAN,
+                           ProjectExplorer::Constants::BUILDSTEPS_DEPLOY});
+    setSupportedConfiguration(Constants::C_NIMBLEBUILDCONFIGURATION_ID);
+    setRepeatable(true);
+}

src/plugins/nim/project/nimbletaskstep.h

@@ -0,0 +1,75 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/processstep.h>
+
+namespace Nim {
+
+class NimbleTaskStep : public ProjectExplorer::AbstractProcessStep
+{
+    Q_OBJECT
+
+public:
+    NimbleTaskStep(ProjectExplorer::BuildStepList *parentList);
+
+    bool init() override;
+
+    ProjectExplorer::BuildStepConfigWidget *createConfigWidget() override;
+
+    bool fromMap(const QVariantMap &map) override;
+
+    QVariantMap toMap() const override;
+
+    QString taskName() const { return m_taskName; }
+
+    void setTaskName(const QString &name);
+
+    QString taskArgs() const { return m_taskArgs; }
+
+    void setTaskArgs(const QString &args);
+
+signals:
+    void taskNameChanged(const QString &name);
+
+    void taskArgsChanged(const QString &args);
+
+private:
+    void updateCommandLine();
+
+    bool validate();
+
+    QString m_taskName;
+    QString m_taskArgs;
+};
+
+class NimbleTaskStepFactory : public ProjectExplorer::BuildStepFactory
+{
+public:
+    NimbleTaskStepFactory();
+};
+
+}

src/plugins/nim/project/nimbletaskstepwidget.cpp

@@ -0,0 +1,157 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "nimbletaskstepwidget.h"
+#include "ui_nimbletaskstepwidget.h"
+
+#include "nimbleproject.h"
+#include "nimbletaskstep.h"
+
+#include <utils/algorithm.h>
+
+using namespace Nim;
+using namespace ProjectExplorer;
+
+NimbleTaskStepWidget::NimbleTaskStepWidget(NimbleTaskStep *bs)
+    : BuildStepConfigWidget(bs)
+    , ui(new Ui::NimbleTaskStepWidget)
+{
+    ui->setupUi(this);
+
+    auto project = dynamic_cast<NimbleProject*>(bs->project());
+    QTC_ASSERT(project, return);
+
+    ui->taskList->setModel(&m_tasks);
+    QObject::connect(&m_tasks, &QAbstractItemModel::dataChanged, this, &NimbleTaskStepWidget::onDataChanged);
+
+    updateTaskList(project->tasks());
+    QObject::connect(project, &NimbleProject::tasksChanged, this, &NimbleTaskStepWidget::updateTaskList);
+
+    selectTask(bs->taskName());
+    QObject::connect(bs, &NimbleTaskStep::taskNameChanged, this, &NimbleTaskStepWidget::selectTask);
+    QObject::connect(bs, &NimbleTaskStep::taskNameChanged, this, &NimbleTaskStepWidget::recreateSummary);
+    QObject::connect(this, &NimbleTaskStepWidget::selectedTaskChanged, bs, &NimbleTaskStep::setTaskName);
+
+    ui->taskArgumentsLineEdit->setText(bs->taskArgs());
+    QObject::connect(bs, &NimbleTaskStep::taskArgsChanged, ui->taskArgumentsLineEdit, &QLineEdit::setText);
+    QObject::connect(bs, &NimbleTaskStep::taskArgsChanged, this, &NimbleTaskStepWidget::recreateSummary);
+    QObject::connect(ui->taskArgumentsLineEdit, &QLineEdit::textChanged, bs ,&NimbleTaskStep::setTaskArgs);
+
+
+    setSummaryUpdater([this, bs] {
+        return QString("<b>%1:</b> nimble %2 %3")
+                .arg(displayName())
+                .arg(bs->taskName())
+                .arg(bs->taskArgs());
+    });
+}
+
+NimbleTaskStepWidget::~NimbleTaskStepWidget()
+{
+    delete ui;
+}
+
+void NimbleTaskStepWidget::updateTaskList(const std::vector<NimbleTask> &tasks)
+{
+    QSet<QString> newTasks;
+    for (const NimbleTask &t : tasks)
+        newTasks.insert(t.name);
+
+    QSet<QString> currentTasks;
+    for (int i = 0; i < m_tasks.rowCount(); ++i)
+        currentTasks.insert(m_tasks.item(i)->text());
+
+    const QSet<QString> added = newTasks - currentTasks;
+    const QSet<QString> removed = currentTasks - newTasks;
+
+    for (const QString &name : added) {
+        auto item = new QStandardItem();
+        item->setText(name);
+        item->setCheckable(true);
+        item->setCheckState(Qt::Unchecked);
+        item->setEditable(false);
+        item->setSelectable(false);
+        m_tasks.appendRow(item);
+    }
+
+    for (int i = m_tasks.rowCount() - 1; i >= 0; i--)
+        if (removed.contains(m_tasks.item(i)->text()))
+            m_tasks.removeRow(i);
+
+    m_tasks.sort(0);
+}
+
+void NimbleTaskStepWidget::selectTask(const QString &name)
+{
+    if (m_selecting)
+        return;
+    m_selecting = true;
+
+    QList<QStandardItem*> items = m_tasks.findItems(name);
+    QStandardItem* item = items.empty() ? nullptr : items.front();
+    uncheckedAllDifferentFrom(item);
+    if (item)
+        item->setCheckState(Qt::Checked);
+
+    emit selectedTaskChanged(name);
+
+    m_selecting = false;
+}
+
+void NimbleTaskStepWidget::onDataChanged(const QModelIndex &topLeft,
+                                         const QModelIndex &bottomRight,
+                                         const QVector<int> &roles)
+{
+    QTC_ASSERT(topLeft == bottomRight, return );
+    if (!roles.contains(Qt::CheckStateRole))
+        return;
+
+    auto item = m_tasks.itemFromIndex(topLeft);
+    if (!item)
+        return;
+
+    if (m_selecting)
+        return;
+    m_selecting = true;
+
+    if (item->checkState() == Qt::Checked) {
+        uncheckedAllDifferentFrom(item);
+        emit selectedTaskChanged(item->text());
+    } else if (item->checkState() == Qt::Unchecked) {
+        emit selectedTaskChanged(QString());
+    }
+
+    m_selecting = false;
+}
+
+void NimbleTaskStepWidget::uncheckedAllDifferentFrom(QStandardItem *toSkip)
+{
+    for (int i = 0; i < m_tasks.rowCount(); ++i) {
+        auto item = m_tasks.item(i);
+        if (!item || item == toSkip)
+            continue;
+        item->setCheckState(Qt::Unchecked);
+    }
+}

src/plugins/nim/project/nimbletaskstepwidget.h

@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/buildstep.h>
+
+#include <nim/project/nimbleproject.h>
+
+#include <QStandardItemModel>
+
+namespace Nim {
+
+class NimbleTaskStep;
+
+namespace Ui { class NimbleTaskStepWidget; }
+
+class NimbleTaskStepWidget : public ProjectExplorer::BuildStepConfigWidget
+{
+    Q_OBJECT
+
+public:
+    explicit NimbleTaskStepWidget(NimbleTaskStep *buildStep);
+
+    ~NimbleTaskStepWidget();
+
+signals:
+    void selectedTaskChanged(const QString &name);
+
+private:
+    void updateTaskList(const std::vector<NimbleTask> &tasks);
+
+    void selectTask(const QString &name);
+
+    void onDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
+
+    void uncheckedAllDifferentFrom(QStandardItem *item);
+
+    Ui::NimbleTaskStepWidget *ui;
+    QStandardItemModel m_tasks;
+    bool m_selecting = false;
+};
+
+}

src/plugins/nim/project/nimbletaskstepwidget.ui

@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Nim::NimbleTaskStepWidget</class>
+ <widget class="QWidget" name="Nim::NimbleTaskStepWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>399</width>
+    <height>252</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QFormLayout" name="formLayout">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetDefaultConstraint</enum>
+     </property>
+     <property name="fieldGrowthPolicy">
+      <enum>QFormLayout::ExpandingFieldsGrow</enum>
+     </property>
+     <item row="0" column="0">
+      <widget class="QLabel" name="taskArgumentsLabel">
+       <property name="text">
+        <string>Task arguments:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="taskArgumentsLineEdit"/>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="tasksLabel">
+       <property name="text">
+        <string>Tasks:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QFrame" name="tasksFrame">
+       <property name="frameShape">
+        <enum>QFrame::StyledPanel</enum>
+       </property>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <property name="leftMargin">
+         <number>0</number>
+        </property>
+        <property name="topMargin">
+         <number>0</number>
+        </property>
+        <property name="rightMargin">
+         <number>0</number>
+        </property>
+        <property name="bottomMargin">
+         <number>0</number>
+        </property>
+        <item>
+         <widget class="QListView" name="taskList">
+          <property name="frameShape">
+           <enum>QFrame::NoFrame</enum>
+          </property>
+          <property name="selectionMode">
+           <enum>QAbstractItemView::NoSelection</enum>
+          </property>
+          <property name="selectionBehavior">
+           <enum>QAbstractItemView::SelectRows</enum>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/plugins/nim/project/nimbuildsystem.cpp

@@ -25,7 +25,7 @@
 
 #include "nimbuildsystem.h"
 
-#include "nimproject.h"
+#include "nimbleproject.h"
 #include "nimprojectnode.h"
 
 #include <utils/algorithm.h>
@@ -51,12 +51,14 @@ NimBuildSystem::NimBuildSystem(Project *project)
     connect(&m_scanner, &TreeScanner::finished, this, &NimBuildSystem::updateProject);
     m_scanner.setFilter([this](const Utils::MimeType &, const Utils::FilePath &fp) {
         const QString path = fp.toString();
-        return excludedFiles().contains(path) || path.endsWith(".nimproject")
+        return excludedFiles().contains(path)
+                || path.endsWith(".nimproject")
                 || path.contains(".nimproject.user");
     });
 
-    connect(&m_directoryWatcher, &FileSystemWatcher::directoryChanged, this, [this]() {
-        requestParse();
+    connect(&m_directoryWatcher, &FileSystemWatcher::directoryChanged, this, [this] {
+        if (!isWaitingForParse())
+            requestDelayedParse();
     });
 }
 
@@ -100,14 +102,14 @@ void NimBuildSystem::parseProject(BuildSystem::ParsingContext &&ctx)
     QTC_ASSERT(!m_currentContext.project, return );
     m_currentContext = std::move(ctx);
     QTC_CHECK(m_currentContext.project);
-
     m_scanner.asyncScanForFiles(m_currentContext.project->projectDirectory());
 }
 
 const FilePathList NimBuildSystem::nimFiles() const
 {
-    return project()->files(
-        [](const Node *n) { return Project::AllFiles(n) && n->path().endsWith(".nim"); });
+    return project()->files([](const Node *n) {
+        return Project::AllFiles(n) && n->path().endsWith(".nim");
+    });
 }
 
 void NimBuildSystem::loadSettings()
@@ -128,23 +130,33 @@ void NimBuildSystem::saveSettings()
 
 void NimBuildSystem::updateProject()
 {
-    auto newRoot = std::make_unique<NimProjectNode>(project()->projectDirectory());
-
-    QSet<QString> directories;
+    // Collect scanned nodes
+    std::vector<std::unique_ptr<FileNode>> nodes;
     for (FileNode *node : m_scanner.release()) {
-        if (!node->path().endsWith(".nim"))
+        if (!node->path().endsWith(".nim") && !node->path().endsWith(".nimble"))
             node->setEnabled(false); // Disable files that do not end in .nim
-        directories.insert(node->directory());
-        newRoot->addNestedNode(std::unique_ptr<FileNode>(node));
+        nodes.emplace_back(node);
     }
 
-    newRoot->setDisplayName(project()->displayName());
-    project()->setRootProjectNode(std::move(newRoot));
+    // Sync watched dirs
+    const QSet<QString> fsDirs = Utils::transform<QSet>(nodes, &FileNode::directory);
+    const QSet<QString> projectDirs = m_directoryWatcher.directories().toSet();
+    m_directoryWatcher.addDirectories(Utils::toList(fsDirs - projectDirs), FileSystemWatcher::WatchAllChanges);
+    m_directoryWatcher.removeDirectories(Utils::toList(projectDirs - fsDirs));
 
-    m_directoryWatcher.addDirectories(Utils::toList(directories), FileSystemWatcher::WatchAllChanges);
+    // Sync project files
+    const QSet<FilePath> fsFiles = Utils::transform<QSet>(nodes, &FileNode::filePath);
+    const QSet<FilePath> projectFiles = project()->files([](const Node *n) { return Project::AllFiles(n); }).toSet();
 
+    if (fsFiles != projectFiles) {
+        auto projectNode = std::make_unique<ProjectNode>(project()->projectDirectory());
+        projectNode->setDisplayName(project()->displayName());
+        projectNode->addNestedNodes(std::move(nodes));
+        project()->setRootProjectNode(std::move(projectNode));
+    }
+
+    // Complete scan
     m_currentContext.guard.markAsSuccess();
-
     m_currentContext = {};
 }
 

src/plugins/nim/project/nimbuildsystem.h

@@ -58,11 +58,11 @@ public:
     void setExcludedFiles(const QStringList &list); // Keep for compatibility with Qt Creator 4.10
     QStringList excludedFiles(); // Make private when no longer supporting Qt Creator 4.10
 
-    void parseProject(ParsingContext &&ctx) final;
+    void parseProject(ParsingContext &&ctx) override;
 
     const Utils::FilePathList nimFiles() const;
 
-private:
+protected:
     void loadSettings();
     void saveSettings();