Merge pull request #109 from goreleaser/fpm

added fpm support

.travis.yml

@@ -4,7 +4,6 @@ install: make setup
 script:
   - make ci
 after_success:
-  - git status
-  - test -n "$TRAVIS_TAG" && go run main.go
+  - test -n "$TRAVIS_TAG" && gem install fpm && go run main.go
 notifications:
   email: false

README.md

@@ -110,9 +110,14 @@ GoReleaser uses the latest [Git tag](https://git-scm.com/book/en/v2/Git-Basics-T
 Create a tag:
 
 ```console
-$ git tag -a v0.1 -m "First release"
+$ git tag -a v0.1.0 -m "First release"
 ```
 
+**Note**: we recommend the use of [semantic versioning](http://semver.org/). We
+are not enforcing it though. We do remove the `v` prefix and then enforce
+that the next character is a number. So, `v0.1.0` and `0.1.0` are virtually the
+same and are both accepted, while `version0.1.0` is not.
+
 Now you can run GoReleaser at the root of your repository:
 
 ```console
@@ -285,6 +290,28 @@ class Program < Formula
 end
 ```
 
+### FPM build customization
+
+GoReleaser can be wired to [fpm]() to generate `.deb`, `.rpm` and other archives. Check it's
+[wiki](https://github.com/jordansissel/fpm/wiki) for more info.
+
+[fpm]: https://github.com/jordansissel/fpm
+
+```yml
+# goreleaser.yml
+fpm:
+  # Formats to generate as output
+  formats:
+    - deb
+    - rpm
+
+  # Dependencies of your package
+  dependencies:
+    - git
+```
+
+Note that GoReleaser will not install `fpm` nor any of it's dependencies for you.
+
 ## Integration with CI
 
 You may want to wire this to auto-deploy your new tags on [Travis](https://travis-ci.org), for example:

config/config.go

@@ -43,12 +43,19 @@ type Release struct {
 	Repo string
 }
 
+// FPM config
+type FPM struct {
+	Formats      []string
+	Dependencies []string
+}
+
 // Project includes all project configuration
 type Project struct {
 	Release Release
 	Brew    Homebrew
 	Build   Build
 	Archive Archive
+	FPM     FPM `yaml:"fpm"`
 }
 
 // Load config file

context/context.go

@@ -22,6 +22,7 @@ type Context struct {
 	ReleaseRepo Repo
 	BrewRepo    Repo
 	Archives    map[string]string
+	Version     string
 }
 
 // New context

goreleaser.yml

@@ -3,3 +3,8 @@ brew:
   folder: Formula
   dependencies:
     - git
+fpm:
+  formats:
+    - deb
+  dependencies:
+    - git

main.go

@@ -12,6 +12,7 @@ import (
 	"github.com/goreleaser/goreleaser/pipeline/build"
 	"github.com/goreleaser/goreleaser/pipeline/defaults"
 	"github.com/goreleaser/goreleaser/pipeline/env"
+	"github.com/goreleaser/goreleaser/pipeline/fpm"
 	"github.com/goreleaser/goreleaser/pipeline/git"
 	"github.com/goreleaser/goreleaser/pipeline/release"
 	"github.com/goreleaser/goreleaser/pipeline/repos"
@@ -33,6 +34,7 @@ var pipes = []pipeline.Pipe{
 	// real work
 	build.Pipe{},
 	archive.Pipe{},
+	fpm.Pipe{},
 	release.Pipe{},
 	brew.Pipe{},
 }

pipeline/brew/brew.go

@@ -22,7 +22,7 @@ const formula = `class {{ .Name }} < Formula
   desc "{{ .Desc }}"
   homepage "{{ .Homepage }}"
   url "https://github.com/{{ .Repo }}/releases/download/{{ .Tag }}/{{ .File }}.{{ .Format }}"
-  version "{{ .Tag }}"
+  version "{{ .Version }}"
   sha256 "{{ .SHA256 }}"
 
   {{- if .Dependencies }}
@@ -50,6 +50,7 @@ type templateData struct {
 	Homepage     string
 	Repo         string
 	Tag          string
+	Version      string
 	BinaryName   string
 	Caveats      string
 	File         string
@@ -156,6 +157,7 @@ func dataFor(ctx *context.Context, client *github.Client) (result templateData,
 		Homepage:     homepage,
 		Repo:         ctx.Config.Release.Repo,
 		Tag:          ctx.Git.CurrentTag,
+		Version:      ctx.Version,
 		BinaryName:   ctx.Config.Build.BinaryName,
 		Caveats:      ctx.Config.Brew.Caveats,
 		File:         file,

pipeline/brew/brew_test.go

@@ -25,6 +25,7 @@ var defaultTemplateData = templateData{
 	Name:       "Test",
 	Repo:       "caarlos0/test",
 	Tag:        "v0.1.3",
+	Version:    "0.1.3",
 	File:       "test_Darwin_x86_64",
 	SHA256:     "1633f61598ab0791e213135923624eb342196b3494909c91899bcd0560f84c68",
 	Format:     "tar.gz",
@@ -36,7 +37,7 @@ func assertDefaultTemplateData(t *testing.T, formulae string) {
 	assert.Contains(formulae, "homepage \"https://google.com\"")
 	assert.Contains(formulae, "url \"https://github.com/caarlos0/test/releases/download/v0.1.3/test_Darwin_x86_64.tar.gz\"")
 	assert.Contains(formulae, "sha256 \"1633f61598ab0791e213135923624eb342196b3494909c91899bcd0560f84c68\"")
-	assert.Contains(formulae, "version \"v0.1.3\"")
+	assert.Contains(formulae, "version \"0.1.3\"")
 	assert.Contains(formulae, "bin.install \"test\"")
 }
 

pipeline/build/build.go

@@ -1,7 +1,6 @@
 package build
 
 import (
-	"bytes"
 	"errors"
 	"log"
 	"os"
@@ -41,7 +40,7 @@ func (Pipe) Run(ctx *context.Context) error {
 }
 
 func build(name, goos, goarch string, ctx *context.Context) error {
-	ldflags := ctx.Config.Build.Ldflags + " -X main.version=" + ctx.Git.CurrentTag
+	ldflags := ctx.Config.Build.Ldflags + " -X main.version=" + ctx.Version
 	output := "dist/" + name + "/" + ctx.Config.Build.BinaryName + extFor(goos)
 	log.Println("Building", output)
 	if ctx.Config.Build.Hooks.Pre != "" {
@@ -67,11 +66,8 @@ func run(goos, goarch string, command []string) error {
 	cmd := exec.Command(command[0], command[1:]...)
 	cmd.Env = append(cmd.Env, os.Environ()...)
 	cmd.Env = append(cmd.Env, "GOOS="+goos, "GOARCH="+goarch)
-	var stdout bytes.Buffer
-	cmd.Stdout = &stdout
-	cmd.Stderr = &stdout
-	if err := cmd.Run(); err != nil {
-		return errors.New(stdout.String())
+	if out, err := cmd.CombinedOutput(); err != nil {
+		return errors.New(string(out))
 	}
 	return nil
 }

pipeline/fpm/fpm.go

@@ -0,0 +1,88 @@
+package fpm
+
+import (
+	"errors"
+	"log"
+	"os/exec"
+	"path/filepath"
+
+	"github.com/goreleaser/goreleaser/context"
+	"golang.org/x/sync/errgroup"
+)
+
+var goarchToUnix = map[string]string{
+	"386":   "i386",
+	"amd64": "x86_64",
+}
+
+// ErrNoFPM is shown when fpm cannot be found in $PATH
+var ErrNoFPM = errors.New("fpm not present in $PATH")
+
+// Pipe for fpm packaging
+type Pipe struct{}
+
+// Description of the pipe
+func (Pipe) Description() string {
+	return "Creating Linux packages with fpm"
+}
+
+// Run the pipe
+func (Pipe) Run(ctx *context.Context) error {
+	if len(ctx.Config.FPM.Formats) == 0 {
+		log.Println("No output formats configured, skipping")
+		return nil
+	}
+	_, err := exec.LookPath("fpm")
+	if err != nil {
+		return ErrNoFPM
+	}
+
+	var g errgroup.Group
+	for _, format := range ctx.Config.FPM.Formats {
+		for _, goarch := range ctx.Config.Build.Goarch {
+			if ctx.Archives["linux"+goarch] == "" {
+				continue
+			}
+			archive := ctx.Archives["linux"+goarch]
+			g.Go(func() error {
+				return create(
+					ctx,
+					format,
+					archive,
+					goarchToUnix[goarch],
+				)
+			})
+		}
+	}
+	return g.Wait()
+}
+
+func create(ctx *context.Context, format, archive, arch string) error {
+	var path = filepath.Join("dist", archive)
+	var file = path + ".deb"
+	var name = ctx.Config.Build.BinaryName
+	log.Println("Creating", file)
+
+	var options = []string{
+		"-s", "dir",
+		"-t", format,
+		"-n", name,
+		"-v", ctx.Version,
+		"-a", arch,
+		"-C", path,
+		"-p", file,
+		"--force",
+	}
+	for _, dep := range ctx.Config.FPM.Dependencies {
+		options = append(options, "-d", dep)
+	}
+	// This basically tells fpm to put the binary in the /usr/local/bin
+	// binary=/usr/local/bin/binary
+	options = append(options, name+"="+filepath.Join("/usr/local/bin", name))
+	cmd := exec.Command("fpm", options...)
+
+	if out, err := cmd.CombinedOutput(); err != nil {
+		return errors.New(string(out))
+	}
+	return nil
+}

pipeline/git/git.go

@@ -1,6 +1,20 @@
 package git
 
-import "github.com/goreleaser/goreleaser/context"
+import (
+	"regexp"
+	"strings"
+
+	"github.com/goreleaser/goreleaser/context"
+)
+
+// ErrInvalidVersionFormat is return when the version isnt in a valid format
+type ErrInvalidVersionFormat struct {
+	version string
+}
+
+func (e ErrInvalidVersionFormat) Error() string {
+	return e.version + " is not in a valid version format"
+}
 
 // Pipe for brew deployment
 type Pipe struct{}
@@ -30,5 +44,10 @@ func (Pipe) Run(ctx *context.Context) (err error) {
 		PreviousTag: previous,
 		Diff:        log,
 	}
+	// removes usual `v` prefix
+	ctx.Version = strings.TrimPrefix(tag, "v")
+	if matches, err := regexp.MatchString("^[0-9.]+", ctx.Version); !matches || err != nil {
+		return ErrInvalidVersionFormat{ctx.Version}
+	}
 	return
 }

pipeline/release/release.go

@@ -4,6 +4,7 @@ import (
 	"log"
 	"os"
 	"os/exec"
+	"path/filepath"
 
 	"github.com/google/go-github/github"
 	"github.com/goreleaser/goreleaser/clients"
@@ -31,9 +32,14 @@ func (Pipe) Run(ctx *context.Context) error {
 	for _, archive := range ctx.Archives {
 		archive := archive
 		g.Go(func() error {
-			return upload(client, *r.ID, archive, ctx)
+			return upload(ctx, client, *r.ID, archive, ctx.Config.Archive.Format)
 		})
-
+		for _, format := range ctx.Config.FPM.Formats {
+			format := format
+			g.Go(func() error {
+				return upload(ctx, client, *r.ID, archive, format)
+			})
+		}
 	}
 	return g.Wait()
 }
@@ -67,9 +73,20 @@ func description(diff string) string {
 	return result + "\nBuilt with " + string(bts)
 }
 
-func upload(client *github.Client, releaseID int, archive string, ctx *context.Context) error {
-	archive = archive + "." + ctx.Config.Archive.Format
-	file, err := os.Open("dist/" + archive)
+func upload(ctx *context.Context, client *github.Client, releaseID int, archive, format string) error {
+	archive = archive + "." + format
+	var path = filepath.Join("dist", archive)
+	// In case the file doesn't exist, we just ignore it.
+	// We do this because we can get invalid combinations of archive+format here,
+	// like darwinamd64 + deb or something like that.
+	// It's assumed that the archive pipe would fail the entire thing in case it fails to
+	// generate some archive, as well fpm pipe is expected to fail if something wrong happens.
+	// So, here, we just assume IsNotExist as an expected error.
+	// TODO: maybe add a list of files to upload in the context so we don't have to do this.
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return nil
+	}
+	file, err := os.Open(path)
 	if err != nil {
 		return err
 	}