From fa4dc4e4060588dab4b8a6301132015d7d23d967 Mon Sep 17 00:00:00 2001
From: Bassam Tabbara <bassam@symform.com>
Date: Sun, 24 Jul 2016 22:27:07 -0700
Subject: [PATCH] Initial support for building embedded ceph and calling it
 from a go cmd

---
 .gitignore          |  4 ++++
 .gitmodules         |  1 +
 LICENSE             |  0
 Makefile            | 51 +++++++++++++++++++++++++++++++++++++++++++++
 README.md           |  2 ++
 ceph                |  2 +-
 cmd/castled/main.go | 34 ++++++++++++++++++++++++++++++
 glide.lock          | 12 +++++++++++
 glide.yaml          |  5 +++++
 version/version.go  |  3 +++
 10 files changed, 113 insertions(+), 1 deletion(-)
 create mode 100644 .gitignore
 create mode 100644 LICENSE
 create mode 100644 Makefile
 create mode 100644 README.md
 create mode 100644 cmd/castled/main.go
 create mode 100644 glide.lock
 create mode 100644 glide.yaml
 create mode 100644 version/version.go

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..0d88f69ae
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+bin/
+tools/
+vendor/
+
diff --git a/.gitmodules b/.gitmodules
index fd7cf875c..eae2aa637 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "ceph"]
 	path = ceph
 	url = git@github.com:quantum/ceph
+	branch = wip-embedded-ceph
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 000000000..e69de29bb
diff --git a/Makefile b/Makefile
new file mode 100644
index 000000000..877f504ed
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,51 @@
+ifeq ($(origin VERSION), undefined)
+	VERSION != git describe --dirty --always
+endif
+
+REPOPATH = github.com/quantum/castle
+
+GOOS=$(shell go env GOOS)
+GOARCH=$(shell go env GOARCH)
+
+NPROCS:=1
+ifeq ($(GOOS),linux)
+  NPROCS:=$(shell grep -c ^processor /proc/cpuinfo)
+endif
+
+build: vendor ceph/build/lib/libcephd.a
+	@for i in castled; do \
+		go build -o bin/$$i -installsuffix cgo -ldflags "-extldflags '-static' -linkmode external -X $(REPOPATH)/version.Version=$(VERSION)" ./cmd/$$i; \
+	done
+
+ceph/build/Makefile:
+	git submodule update --init --recursive
+	cd ceph && ./do_cmake.sh -DWITH_EMBEDDED=ON -DWITH_FUSE=OFF
+
+ceph/build/lib/libcephd.a: ceph/build/Makefile
+	cd ceph/build && make -j$(NPROCS) cephd
+
+test: tools/glide
+	go test --race $(shell ./tools/glide novendor)
+
+vet: tools/glide
+	go vet $(shell ./tools/glide novendor)
+
+fmt: tools/glide
+	go fmt $(shell ./tools/glide novendor)
+
+clean:
+	rm -rf ./bin
+	cd ceph/build && make clean
+
+cleanall: clean
+	rm -rf bin tools vendor
+
+vendor: tools/glide
+	./tools/glide install
+
+tools/glide:
+	@echo "Downloading glide"
+	mkdir -p tools
+	curl -L https://github.com/Masterminds/glide/releases/download/v0.11.1/glide-v0.11.1-$(GOOS)-$(GOARCH).tar.gz | tar -xz -C tools
+	mv tools/$(GOOS)-$(GOARCH)/glide tools/glide
+	rm -r tools/$(GOOS)-$(GOARCH)
diff --git a/README.md b/README.md
new file mode 100644
index 000000000..89d118707
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# Castle - Software Defined Storage
+
diff --git a/ceph b/ceph
index c4da56d0c..d43b87b16 160000
--- a/ceph
+++ b/ceph
@@ -1 +1 @@
-Subproject commit c4da56d0cbfcd75e37be29dd4853b23487a3526f
+Subproject commit d43b87b16610f5278da38953f4bffa03fb788b17
diff --git a/cmd/castled/main.go b/cmd/castled/main.go
new file mode 100644
index 000000000..a72dd6df1
--- /dev/null
+++ b/cmd/castled/main.go
@@ -0,0 +1,34 @@
+package main
+
+// #cgo CFLAGS: -I${SRCDIR}/../../ceph/src/include
+// #cgo LDFLAGS: -L${SRCDIR}/../../ceph/build/lib -lcephd -lstdc++
+// #include "cephd/libcephd.h"
+import "C"
+
+import (
+    "fmt"
+
+    "github.com/quantum/castle/version"
+    "github.com/spf13/cobra"
+)
+
+func CephVersion() (string) {
+    var c_major, c_minor, c_patch C.int
+    return C.GoString(C.ceph_version(&c_major,&c_minor,&c_patch))
+}
+
+func main() {
+
+    var cmdVersion = &cobra.Command{
+        Use:   "version",
+        Short: "print castle version",
+        Long: `prints the version of castle.`,
+        Run: func(cmd *cobra.Command, args []string) {
+            fmt.Printf("castled version %v (ceph version %v)\n", version.Version, CephVersion())
+        },
+    }
+
+    var rootCmd = &cobra.Command{Use: "castled"}
+    rootCmd.AddCommand(cmdVersion)
+    rootCmd.Execute()
+}
diff --git a/glide.lock b/glide.lock
new file mode 100644
index 000000000..04bc10ca1
--- /dev/null
+++ b/glide.lock
@@ -0,0 +1,12 @@
+hash: ed0ac78e36a48a3140bd61be5aba1db8f7a7b3adae518dd6419a49ff46af4424
+updated: 2016-07-24T13:00:22.18839951-07:00
+imports:
+- name: github.com/inconshreveable/mousetrap
+  version: 76626ae9c91c4f2a10f34cad8ce83ea42c93bb75
+- name: github.com/spf13/cobra
+  version: dbb7c2d02e284aa24423e3e6e105969dffe6e4d6
+  subpackages:
+  - cobra
+- name: github.com/spf13/pflag
+  version: 1560c1005499d61b80f865c04d39ca7505bf7f0b
+testImports: []
diff --git a/glide.yaml b/glide.yaml
new file mode 100644
index 000000000..27fe5f513
--- /dev/null
+++ b/glide.yaml
@@ -0,0 +1,5 @@
+package: github.com/quantum/castle
+import:
+- package: github.com/spf13/cobra
+  subpackages:
+  - cobra
diff --git a/version/version.go b/version/version.go
new file mode 100644
index 000000000..415100dcc
--- /dev/null
+++ b/version/version.go
@@ -0,0 +1,3 @@
+package version
+
+var Version = "0.0.0"