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build.go
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build.go
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// Package build provides a pipe that can build binaries for several
// languages.
package build
import (
"os"
"os/exec"
"path/filepath"
"strings"
"github.com/apex/log"
"github.com/pkg/errors"
builders "github.com/goreleaser/goreleaser/build"
"github.com/goreleaser/goreleaser/config"
"github.com/goreleaser/goreleaser/context"
// langs to init
_ "github.com/goreleaser/goreleaser/internal/builders/golang"
"github.com/goreleaser/goreleaser/internal/semerrgroup"
"github.com/goreleaser/goreleaser/internal/tmpl"
)
// Pipe for build
type Pipe struct{}
func (Pipe) String() string {
return "building binaries"
}
// Run the pipe
func (Pipe) Run(ctx *context.Context) error {
for _, build := range ctx.Config.Builds {
log.WithField("build", build).Debug("building")
if err := runPipeOnBuild(ctx, build); err != nil {
return err
}
}
return nil
}
// Default sets the pipe defaults
func (Pipe) Default(ctx *context.Context) error {
for i, build := range ctx.Config.Builds {
ctx.Config.Builds[i] = buildWithDefaults(ctx, build)
}
if len(ctx.Config.Builds) == 0 {
ctx.Config.Builds = []config.Build{
buildWithDefaults(ctx, ctx.Config.SingleBuild),
}
}
return nil
}
func buildWithDefaults(ctx *context.Context, build config.Build) config.Build {
if build.Lang == "" {
build.Lang = "go"
}
if build.Binary == "" {
build.Binary = ctx.Config.Release.GitHub.Name
}
for k, v := range build.Env {
build.Env[k] = os.ExpandEnv(v)
}
return builders.For(build.Lang).WithDefaults(build)
}
func runPipeOnBuild(ctx *context.Context, build config.Build) error {
if err := runHook(ctx, build.Env, build.Hooks.Pre); err != nil {
return errors.Wrap(err, "pre hook failed")
}
var g = semerrgroup.New(ctx.Parallelism)
for _, target := range build.Targets {
target := target
build := build
g.Go(func() error {
return doBuild(ctx, build, target)
})
}
if err := g.Wait(); err != nil {
return err
}
return errors.Wrap(runHook(ctx, build.Env, build.Hooks.Post), "post hook failed")
}
func runHook(ctx *context.Context, env []string, hook string) error {
if hook == "" {
return nil
}
log.WithField("hook", hook).Info("running hook")
cmd := strings.Fields(hook)
return run(ctx, cmd, env)
}
func doBuild(ctx *context.Context, build config.Build, target string) error {
var ext = extFor(target)
binary, err := tmpl.New(ctx).Apply(build.Binary)
if err != nil {
return err
}
build.Binary = binary
var name = build.Binary + ext
var path = filepath.Join(ctx.Config.Dist, target, name)
log.WithField("binary", path).Info("building")
return builders.For(build.Lang).Build(ctx, build, builders.Options{
Target: target,
Name: name,
Path: path,
Ext: ext,
})
}
func extFor(target string) string {
if strings.Contains(target, "windows") {
return ".exe"
}
return ""
}
func run(ctx *context.Context, command, env []string) error {
/* #nosec */
var cmd = exec.CommandContext(ctx, command[0], command[1:]...)
var log = log.WithField("env", env).WithField("cmd", command)
cmd.Env = append(cmd.Env, os.Environ()...)
cmd.Env = append(cmd.Env, env...)
log.WithField("cmd", command).WithField("env", env).Debug("running")
if out, err := cmd.CombinedOutput(); err != nil {
log.WithError(err).Debug("failed")
return errors.New(string(out))
}
return nil
}