DockerDevice: Implements ensureReachable

Change-Id: I2c479b1cf7a61021f27222e2e936903a9f39e1d8
Reviewed-by: hjk <hjk@qt.io>

src/plugins/docker/dockerdevice.cpp

@@ -127,6 +127,7 @@ public:
 
     void updateContainerAccess();
     void changeMounts(QStringList newMounts);
+    bool ensureReachable(const FilePath &other);
     void shutdown();
 
     QString containerId() { return m_container; }
@@ -150,11 +151,18 @@ private:
     void stopCurrentContainer();
     void fetchSystemEnviroment();
 
+    bool addTemporaryMount(const FilePath &path, const FilePath &containerPath);
+
     DockerDevice *const q;
     DockerDeviceData m_data;
     DockerSettings *m_settings;
 
-    // For local file access
+    struct TemporaryMountInfo {
+        FilePath path;
+        FilePath containerPath;
+    };
+
+    QList<TemporaryMountInfo> m_temporaryMounts;
 
     std::unique_ptr<ContainerShell> m_shell;
 
@@ -469,6 +477,12 @@ bool DockerDevicePrivate::createContainer()
     dockerCreate.addArgs({"-v", q->debugDumperPath().toUserOutput() + ':' + dumperPath.path()});
     q->setDebugDumperPath(dumperPath);
 
+    for (const auto &[path, containerPath] : qAsConst(m_temporaryMounts)) {
+        if (path.isEmpty())
+            continue;
+        dockerCreate.addArgs({"-v", path.nativePath() + ':' + containerPath.nativePath()});
+    }
+
     dockerCreate.addArgs({"--entrypoint", "/bin/sh"});
 
     dockerCreate.addArg(m_data.repoAndTag());
@@ -846,6 +860,16 @@ bool DockerDevice::setPermissions(const FilePath &filePath, QFileDevice::Permiss
     return false;
 }
 
+bool DockerDevice::ensureReachable(const FilePath &other) const
+{
+    if (other.needsDevice())
+        return false;
+
+    if (other.isDir())
+        return d->ensureReachable(other);
+    return d->ensureReachable(other.parentDir());
+}
+
 void DockerDevice::iterateWithFind(const FilePath &filePath,
                                    const std::function<bool(const Utils::FilePath &)> &callBack,
                                    const FileFilter &filter) const
@@ -1256,6 +1280,21 @@ void DockerDeviceFactory::shutdownExistingDevices()
     }
 }
 
+bool DockerDevicePrivate::addTemporaryMount(const FilePath &path, const FilePath &containerPath)
+{
+    bool alreadyAdded = anyOf(m_temporaryMounts,
+                              [containerPath](const TemporaryMountInfo &info) {
+                                  return info.containerPath == containerPath;
+                              });
+    if (alreadyAdded)
+        return false;
+
+    qCDebug(dockerDeviceLog) << "Adding temporary mount:" << path;
+    m_temporaryMounts.append({path, containerPath});
+    stopCurrentContainer(); // Force re-start with new mounts.
+    return true;
+}
+
 Environment DockerDevicePrivate::environment()
 {
     if (!m_cachedEnviroment.isValid())
@@ -1281,6 +1320,26 @@ void DockerDevicePrivate::changeMounts(QStringList newMounts)
     }
 }
 
+bool DockerDevicePrivate::ensureReachable(const FilePath &other)
+{
+    for (const QString &mount : m_data.mounts) {
+        const FilePath fMount = FilePath::fromString(mount);
+        if (other.isChildOf(fMount))
+            return true;
+    }
+
+    for (const auto &[path, containerPath] : m_temporaryMounts) {
+        if (path.path() != containerPath.path())
+            continue;
+
+        if (other.isChildOf(path))
+            return true;
+    }
+
+    addTemporaryMount(other, other);
+    return true;
+}
+
 void DockerDevicePrivate::setData(const DockerDeviceData &data)
 {
     if (m_data != data) {

src/plugins/docker/dockerdevice.h

@@ -5,9 +5,10 @@
 
 #include "dockersettings.h"
 
+#include <coreplugin/documentmanager.h>
+
 #include <projectexplorer/devicesupport/idevice.h>
 #include <projectexplorer/devicesupport/idevicefactory.h>
-#include <coreplugin/documentmanager.h>
 
 #include <utils/aspects.h>
 
@@ -20,17 +21,11 @@ class DockerDeviceData
 public:
     bool operator==(const DockerDeviceData &other) const
     {
-        return imageId == other.imageId
-            && repo == other.repo
-            && tag == other.tag
-            && useLocalUidGid == other.useLocalUidGid
-            && mounts == other.mounts;
+        return imageId == other.imageId && repo == other.repo && tag == other.tag
+               && useLocalUidGid == other.useLocalUidGid && mounts == other.mounts;
     }
 
-    bool operator!=(const DockerDeviceData &other) const
-    {
-        return !(*this == other);
-    }
+    bool operator!=(const DockerDeviceData &other) const { return !(*this == other); }
 
     // Used for "docker run"
     QString repoAndTag() const
@@ -63,7 +58,10 @@ public:
 
     void shutdown();
 
-    static Ptr create(DockerSettings *settings, const DockerDeviceData &data) { return Ptr(new DockerDevice(settings, data)); }
+    static Ptr create(DockerSettings *settings, const DockerDeviceData &data)
+    {
+        return Ptr(new DockerDevice(settings, data));
+    }
 
     ProjectExplorer::IDeviceWidget *createWidget() override;
     QList<ProjectExplorer::Task> validate() const override;
@@ -110,7 +108,9 @@ public:
     QDateTime lastModified(const Utils::FilePath &filePath) const override;
     qint64 fileSize(const Utils::FilePath &filePath) const override;
     QFileDevice::Permissions permissions(const Utils::FilePath &filePath) const override;
-    bool setPermissions(const Utils::FilePath &filePath, QFileDevice::Permissions permissions) const override;
+    bool setPermissions(const Utils::FilePath &filePath,
+                        QFileDevice::Permissions permissions) const override;
+    bool ensureReachable(const Utils::FilePath &other) const override;
 
     Utils::Environment systemEnvironment() const override;
 
@@ -151,6 +151,6 @@ private:
     std::vector<QWeakPointer<DockerDevice>> m_existingDevices;
 };
 
-} // Docker::Internal
+} // namespace Docker::Internal
 
 Q_DECLARE_METATYPE(Docker::Internal::DockerDeviceData)