Migrating minio server build to do 'go run make.go' style like mc

Godeps/Godeps.json

@@ -23,8 +23,8 @@
 		},
 		{
 			"ImportPath": "github.com/minio/cli",
-			"Comment": "1.2.0-111-g432a101",
-			"Rev": "432a1019ded42d1b34fb5f1aad60fb609245d5a1"
+			"Comment": "1.2.0-112-g823349c",
+			"Rev": "823349ce91e76834a4af0119d5bbc58fd4d2c6b0"
 		},
 		{
 			"ImportPath": "github.com/stretchr/objx",

Godeps/_workspace/src/github.com/minio/cli/app.go

@@ -198,7 +198,6 @@ func (a *App) Run(arguments []string) (err error) {
 // RunAndExitOnError - Another entry point to the cli app, takes care of passing arguments and error handling
 func (a *App) RunAndExitOnError() {
 	if err := a.Run(os.Args); err != nil {
-		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
 	}
 }

Makefile

@@ -31,25 +31,20 @@ cyclo:
 	@echo "Running $@:"
 	@test -z "$$(gocyclo -over 19 . | grep -v Godeps/_workspace/src/ | tee /dev/stderr)"
 
-pre-build:
-	@echo "Running pre-build:"
-
-build-all: verifiers
-	@echo "Building Libraries:"
-	@godep go generate ./...
-	@godep go build -a ./... # have no stale packages
-
-test-all: build-all
-	@echo "Running Test Suites:"
-	@godep go test -race ./...
-
-test: test-all
-
-minio: pre-build build-all test-all
-
-install: minio
+gomake-all: getdeps verifiers
 	@echo "Installing minio:"
-	@godep go install -a -ldflags "-X main.BuildDate `go run buildscripts/date.go`" github.com/minio/minio
+	@go run make.go install
+
+release: getdeps verifiers
+	@echo "Installing minio:"
+	@go run make.go release
+	@go run make.go install
+
+godepupdate:
+	@for i in $(grep ImportPath Godeps/Godeps.json  | grep -v minio/minio | cut -f2 -d: | sed -e 's/,//' -e 's/^[ \t]*//' -e 's/[ \t]*$//' -e 's/\"//g'); do godep update $i; done
+
+
+install: gomake-all
 
 save:
 	@godep save ./...
@@ -65,3 +60,4 @@ clean:
 	@rm -fv cover.out
 	@rm -fv pkg/utils/split/TESTPREFIX.*
 	@rm -fv minio
+	@find Godeps -name "*.a" -type f -exec rm -vf {} \+

buildscripts/date.go

@@ -1,26 +0,0 @@
-/*
- * Minio Client (C) 2014, 2015 Minio, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package main
-
-import (
-	"fmt"
-	"time"
-)
-
-func main() {
-	fmt.Println(time.Now().UTC().Format(time.RFC3339Nano))
-}

hash-binary.go

@@ -1,34 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"os/exec"
-
-	"crypto/md5"
-)
-
-// hashBinary computes MD5SUM of a binary file on disk
-func hashBinary(progName string) (string, error) {
-	path, err := exec.LookPath(progName)
-	if err != nil {
-		return "", err
-	}
-
-	m := md5.New()
-
-	file, err := os.Open(path) // For read access.
-	if err != nil {
-		return "", err
-	}
-
-	io.Copy(m, file)
-	return fmt.Sprintf("%x", m.Sum(nil)), nil
-}
-
-// mustHashBinarySelf masks any error returned by hashBinary
-func mustHashBinarySelf() string {
-	hash, _ := hashBinary(os.Args[0])
-	return hash
-}

main.go

@@ -18,7 +18,6 @@ package main
 
 import (
 	"fmt"
-	"net/http"
 	"os"
 	"os/user"
 	"runtime"
@@ -103,18 +102,6 @@ func getWebServerConfigFunc(c *cli.Context) server.StartServerFunc {
 }
 */
 
-// Build date
-var BuildDate string
-
-// getBuildDate -
-func getBuildDate() string {
-	t, _ := time.Parse(time.RFC3339Nano, BuildDate)
-	if t.IsZero() {
-		return ""
-	}
-	return t.Format(http.TimeFormat)
-}
-
 // Tries to get os/arch/platform specific information
 // Returns a map of current os/arch/platform/memstats
 func getSystemData() map[string]string {
@@ -141,33 +128,6 @@ func getSystemData() map[string]string {
 	}
 }
 
-// Version is based on MD5SUM of its binary
-var Version = mustHashBinarySelf()
-
-// Help template
-var minioHelpTemplate = `NAME:
-  {{.Name}} - {{.Usage}}
-
-USAGE:
-  {{.Name}} {{if .Flags}}[global flags] {{end}}command{{if .Flags}} [command flags]{{end}} [arguments...]
-
-COMMANDS:
-  {{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
-  {{end}}{{if .Flags}}
-GLOBAL FLAGS:
-  {{range .Flags}}{{.}}
-  {{end}}{{end}}
-VERSION:
-  {{.Version}}
-  {{if .Compiled}}
-BUILD:
-  {{.Compiled}}{{end}}
-  {{range $key, $value := .ExtraInfo}}
-{{$key}}:
-  {{$value}}
-{{end}}
-`
-
 func main() {
 	// set up iodine
 	iodine.SetGlobalState("minio.version", Version)
@@ -180,7 +140,7 @@ func main() {
 	app := cli.NewApp()
 	app.Name = "minio"
 	app.Version = Version
-	app.Compiled = getBuildDate()
+	app.Compiled = getVersion()
 	app.Author = "Minio.io"
 	app.Usage = "Minimalist Object Storage"
 	app.Flags = flags
@@ -191,6 +151,25 @@ func main() {
 		}
 		return nil
 	}
-	app.CustomAppHelpTemplate = minioHelpTemplate
+	app.CustomAppHelpTemplate = `NAME:
+  {{.Name}} - {{.Usage}}
+
+USAGE:
+  {{.Name}} {{if .Flags}}[global flags] {{end}}command{{if .Flags}} [command flags]{{end}} [arguments...]
+
+COMMANDS:
+  {{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
+  {{end}}{{if .Flags}}
+GLOBAL FLAGS:
+  {{range .Flags}}{{.}}
+  {{end}}{{end}}
+VERSION:
+  {{if .Compiled}}
+  {{.Compiled}}{{end}}
+  {{range $key, $value := .ExtraInfo}}
+{{$key}}:
+  {{$value}}
+{{end}}
+`
 	app.RunAndExitOnError()
 }

make.go

@@ -0,0 +1,168 @@
+// +build ignore
+
+/*
+ * Minio Client (C) 2014, 2015 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"os/exec"
+	"strconv"
+	"text/template"
+	"time"
+
+	"github.com/minio/cli"
+)
+
+type Version struct {
+	Date string
+	Tag  string
+}
+
+func writeVersion(version Version) error {
+	var versionTemplate = `// --------  DO NOT EDIT --------
+// this is an autogenerated file
+
+package main
+
+import (
+	"net/http"
+	"time"
+)
+
+// Version autogenerated
+var Version = {{if .Date}}"{{.Date}}"{{else}}""{{end}}
+
+// Tag is of following format
+//
+//   [[STRING]-[EPOCH]
+//
+// STRING is release string of your choice.
+// EPOCH is unix seconds since Jan 1, 1970 UTC.
+var Tag = {{if .Tag}}"{{.Tag}}"{{else}}""{{end}}
+
+// getVersion -
+func getVersion() string {
+	t, _ := time.Parse(time.RFC3339Nano, Version)
+	if t.IsZero() {
+		return ""
+	}
+	return t.Format(http.TimeFormat)
+}
+`
+	t := template.Must(template.New("version").Parse(versionTemplate))
+	versionFile, err := os.OpenFile("version.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	if err != nil {
+		return err
+	}
+	defer versionFile.Close()
+	err = t.Execute(versionFile, version)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+type command struct {
+	cmd    *exec.Cmd
+	stderr *bytes.Buffer
+	stdout *bytes.Buffer
+}
+
+func (c command) runCommand() error {
+	c.cmd.Stdout = c.stdout
+	c.cmd.Stderr = c.stderr
+	return c.cmd.Run()
+}
+func (c command) String() string {
+	message := c.stderr.String()
+	message += c.stdout.String()
+	return message
+}
+
+func runMinioInstall(ctx *cli.Context) {
+	if ctx.Args().First() == "help" {
+		cli.ShowCommandHelpAndExit(ctx, "install", 1) // last argument is exit code
+	}
+	minioGenerate := command{exec.Command("godep", "go", "generate", "./..."), &bytes.Buffer{}, &bytes.Buffer{}}
+	minioBuild := command{exec.Command("godep", "go", "build", "-a", "./..."), &bytes.Buffer{}, &bytes.Buffer{}}
+	minioTest := command{exec.Command("godep", "go", "test", "-race", "./..."), &bytes.Buffer{}, &bytes.Buffer{}}
+	minioInstall := command{exec.Command("godep", "go", "install", "-a", "github.com/minio/minio"), &bytes.Buffer{}, &bytes.Buffer{}}
+	minioGenerateErr := minioGenerate.runCommand()
+	if minioGenerateErr != nil {
+		fmt.Print(minioGenerate)
+		os.Exit(1)
+	}
+	fmt.Println(minioGenerate)
+	minioBuildErr := minioBuild.runCommand()
+	if minioBuildErr != nil {
+		fmt.Print(minioBuild)
+		os.Exit(1)
+	}
+	fmt.Print(minioBuild)
+	minioTestErr := minioTest.runCommand()
+	if minioTestErr != nil {
+		fmt.Println(minioTest)
+		os.Exit(1)
+	}
+	fmt.Print(minioTest)
+	minioInstallErr := minioInstall.runCommand()
+	if minioInstallErr != nil {
+		fmt.Println(minioInstall)
+		os.Exit(1)
+	}
+	fmt.Print(minioInstall)
+}
+
+func runMinioRelease(ctx *cli.Context) {
+	if ctx.Args().First() == "help" {
+		cli.ShowCommandHelpAndExit(ctx, "release", 1) // last argument is exit code
+	}
+	t := time.Now().UTC()
+	date := t.Format(time.RFC3339Nano)
+	//   [[STRING]-[EPOCH]
+	//
+	// STRING is release string of your choice.
+	// EPOCH is unix seconds since Jan 1, 1970 UTC.
+	tag := "release" + "-" + strconv.FormatInt(t.Unix(), 10)
+
+	version := Version{Date: date, Tag: tag}
+	err := writeVersion(version)
+	if err != nil {
+		fmt.Print(err)
+		os.Exit(1)
+	}
+}
+
+func main() {
+	app := cli.NewApp()
+	app.Usage = "Minimalist Object Storage"
+	app.Commands = []cli.Command{
+		{
+			Name:   "release",
+			Action: runMinioRelease,
+		},
+		{
+			Name:   "install",
+			Action: runMinioInstall,
+		},
+	}
+	app.Author = "Minio.io"
+	app.RunAndExitOnError()
+}

version.go

@@ -0,0 +1,29 @@
+// --------  DO NOT EDIT --------
+// this is an autogenerated file
+
+package main
+
+import (
+	"net/http"
+	"time"
+)
+
+// Version autogenerated
+var Version = "2015-06-17T03:17:23.789648634Z"
+
+// Tag is of following format
+//
+//   [[STRING]-[EPOCH]
+//
+// STRING is release string of your choice.
+// EPOCH is unix seconds since Jan 1, 1970 UTC.
+var Tag = "release-1434511043"
+
+// getVersion -
+func getVersion() string {
+	t, _ := time.Parse(time.RFC3339Nano, Version)
+	if t.IsZero() {
+		return ""
+	}
+	return t.Format(http.TimeFormat)
+}