Merge pull request #232 from goreleaser/env

custom env support

README.md

@@ -201,6 +201,11 @@ build:
   # Date format is `2006-01-02_15:04:05`
   ldflags: -s -w -X main.build={{.Version}}
 
+  # Custom environment variables to be set durign the builds.
+  # Default is empty
+  env:
+   - CGO_ENABLED=0
+
   # GOOS list to build in.
   # For more info refer to https://golang.org/doc/install/source#environment
   # Defaults are darwin and linux

config/config.go

@@ -55,6 +55,7 @@ type Build struct {
 	Flags   string         `yaml:",omitempty"`
 	Binary  string         `yaml:",omitempty"`
 	Hooks   Hooks          `yaml:",omitempty"`
+	Env     []string       `yaml:",omitempty"`
 }
 
 // FormatOverride is used to specify a custom format for a specific GOOS.

goreleaser.yml

@@ -1,6 +1,8 @@
 homepage: &homepage http://goreleaser.github.io
 description: &description Deliver Go binaries as fast and easily as possible
 build:
+  env:
+   - CGO_ENABLED=0
   goos:
     - linux
     - darwin

pipeline/build/build.go

@@ -24,7 +24,7 @@ func (Pipe) Description() string {
 
 // Run the pipe
 func (Pipe) Run(ctx *context.Context) error {
-	if err := runHook(ctx.Config.Build.Hooks.Pre); err != nil {
+	if err := runHook(ctx.Config.Build.Env, ctx.Config.Build.Hooks.Pre); err != nil {
 		return err
 	}
 	sem := make(chan bool, 4)
@@ -48,16 +48,16 @@ func (Pipe) Run(ctx *context.Context) error {
 	if err := g.Wait(); err != nil {
 		return err
 	}
-	return runHook(ctx.Config.Build.Hooks.Post)
+	return runHook(ctx.Config.Build.Env, ctx.Config.Build.Hooks.Post)
 }
 
-func runHook(hook string) error {
+func runHook(env []string, hook string) error {
 	if hook == "" {
 		return nil
 	}
 	log.Println("Running hook", hook)
 	cmd := strings.Fields(hook)
-	return run(runtimeTarget, cmd)
+	return run(runtimeTarget, cmd, env)
 }
 
 func build(ctx *context.Context, name string, target buildTarget) error {
@@ -76,12 +76,13 @@ func build(ctx *context.Context, name string, target buildTarget) error {
 		return err
 	}
 	cmd = append(cmd, "-ldflags="+flags, "-o", output, ctx.Config.Build.Main)
-	return run(target, cmd)
+	return run(target, cmd, ctx.Config.Build.Env)
 }
 
-func run(target buildTarget, command []string) error {
+func run(target buildTarget, command, env []string) error {
 	cmd := exec.Command(command[0], command[1:]...)
 	cmd.Env = append(cmd.Env, os.Environ()...)
+	cmd.Env = append(cmd.Env, env...)
 	cmd.Env = append(
 		cmd.Env,
 		"GOOS="+target.goos,

pipeline/build/build_test.go

@@ -12,16 +12,18 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+var emptyEnv []string
+
 func TestPipeDescription(t *testing.T) {
 	assert.NotEmpty(t, Pipe{}.Description())
 }
 
 func TestRun(t *testing.T) {
-	assert.NoError(t, run(runtimeTarget, []string{"go", "list", "./..."}))
+	assert.NoError(t, run(runtimeTarget, []string{"go", "list", "./..."}, emptyEnv))
 }
 
 func TestRunInvalidCommand(t *testing.T) {
-	assert.Error(t, run(runtimeTarget, []string{"gggggo", "nope"}))
+	assert.Error(t, run(runtimeTarget, []string{"gggggo", "nope"}, emptyEnv))
 }
 
 func TestBuild(t *testing.T) {
@@ -30,6 +32,7 @@ func TestBuild(t *testing.T) {
 		Build: config.Build{
 			Binary: "testing",
 			Flags:  "-n",
+			Env:    []string{"BLAH=1"},
 		},
 	}
 	var ctx = &context.Context{