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gut_build.go
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gut_build.go
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package main
import (
"fmt"
"io/ioutil"
"os"
"path"
"strings"
"unicode/utf8"
"github.com/kballard/go-shellquote"
)
func (ctx *SyncContext) EnsureGutFolders() (err error) {
err = ctx.Mkdirp(GutSrcPath)
if err != nil {
return err
}
err = ctx.Mkdirp(GutWinSrcPath)
if err != nil {
return err
}
err = ctx.Mkdirp(GutDistPath)
return err
}
func renameGitToGut(s string) string {
s = strings.Replace(s, "git", "gut", -1)
s = strings.Replace(s, "Git", "Gut", -1)
s = strings.Replace(s, "GIT", "GUT", -1)
s = strings.Replace(s, "digut", "digit", -1)
s = strings.Replace(s, "DIGUT", "DIGIT", -1)
return s
}
func rewriteGitToGutRecursive(pathRoot string) (err error) {
entries, err := ioutil.ReadDir(pathRoot)
if err != nil {
return err
}
for _, entry := range entries {
origName := entry.Name()
// Don't modify .gitignore, and don't recurse into .git
if len(origName) >= 4 && origName[:4] == ".git" {
continue
}
name := renameGitToGut(origName)
p := path.Join(pathRoot, name)
if origName != name {
os.Rename(path.Join(pathRoot, origName), p)
}
if entry.IsDir() {
err = rewriteGitToGutRecursive(p)
if err != nil {
return err
}
} else {
_origContents, err := ioutil.ReadFile(p)
if err != nil {
return err
}
if !utf8.Valid(_origContents) {
continue
}
origContents := string(_origContents)
contents := renameGitToGut(origContents)
if name == "read-cache.c" {
// This is a special case super-optimized string parse for the 'i' in 'git':
contents = strings.Replace(contents, "rest[1] != 'i' && rest[1] != 'I'", "rest[1] != 'u' && rest[1] != 'U'", -1)
}
if name == "utf8.c" {
contents = strings.Replace(contents, "if (c != 'i' && c != 'I'", "if (c != 'u' && c != 'U'", -1)
}
if name == "GUT-VERSION-GEN" {
// GUT-VERSION-GEN attempts to use `git` to look at the git repo's history in order to determine the version string.
// This prevents gut-gui/GUT-VERSION-GEN from calling `gut` and causing `gut_proxy` to recursively build `gut` in an infinite loop.
contents = strings.Replace(contents, "gut ", "git ", -1)
}
if origContents != contents {
err = ioutil.WriteFile(p, []byte(contents), os.FileMode(0644))
if err != nil {
return err
}
}
}
}
return nil
}
func RewriteGitToGut(local *SyncContext, pathRoot string) (err error) {
status := local.NewLogger("rewrite")
defer status.Close()
status.Printf("@(dim:Rewriting git to gut...)")
err = rewriteGitToGutRecursive(local.AbsPath(pathRoot))
if err != nil {
status.Printf("@(error: failed)@(dim:.)\n")
return err
}
status.Printf("@(dim: done.)\n")
return nil
}
func GitHardResetAndClean(local *SyncContext, localPath string, repoUrl string, version string) (err error) {
// Do a little sanity-check to make sure we're not running these (destructive) operations in some other repo:
gitRemoteOut, err := local.OutputCwd(localPath, "git", "remote", "-v")
if err != nil {
return err
}
// Normalize before & after to adjust for https->git rewrite rules
gitRemoteOutNormalized := strings.Replace(gitRemoteOut, "https://github.com/", "[email protected]:", -1)
repoUrlNormalized := strings.Replace(repoUrl, "https://github.com/", "[email protected]:", -1)
if !strings.Contains(gitRemoteOutNormalized, repoUrlNormalized) {
return fmt.Errorf("I think I might be trying to git-reset the wrong repo. `git remote -v` said %q but I expected something like %q.", gitRemoteOut, repoUrl)
}
_, err = local.QuoteCwd("git-reset", localPath, "git", "reset", "--quiet", "--hard", version)
if err != nil {
return err
}
_, err = local.QuoteCwd("git-clean", localPath, "git", "clean", "-fdxq")
return err
}
func GitCloneUpdate(local *SyncContext, localPath string, repoUrl string, version string) (err error) {
status := local.NewLogger("")
defer status.Close()
err = local.EnsureGutFolders()
if err != nil {
return err
}
exists, err := local.PathExists(path.Join(localPath, ".git"))
if err != nil {
return err
}
if !exists {
p := local.AbsPath(localPath)
status.Printf("@(dim:Cloning) %s @(dim:into) @(path:%s)@(dim:...)\n", repoUrl, p)
_, err = local.Quote("git-clone", "git", "clone", "--progress", repoUrl, p)
if err != nil {
return err
}
}
// Prevent windows from checking out CRLF line endings and then syncing them to a linux box, which subsequently
// runs into weird errors due to the CRLFs:
_, err = local.OutputCwd(localPath, "git", "config", "core.autocrlf", "false")
if err != nil {
return err
}
_, _, retCode, err := local.RunCwd(localPath, "git", "rev-parse", version)
if retCode != 0 {
status.Printf("@(dim:Fetching latest from) %s @(dim:in order to upgrade to) %s @(dim:...)", repoUrl, version)
_, err = local.QuoteCwd("git-fetch", localPath, "git", "fetch")
if err != nil {
return err
}
status.Printf("@(dim: done.)\n")
}
status.Printf("@(dim:Checking out) %s @(dim:...)", version)
err = GitHardResetAndClean(local, localPath, repoUrl, version)
if err != nil {
return err
}
status.Printf("@(dim: done.)\n")
return nil
}
func GutBuildPrepare(local *SyncContext, ctx *SyncContext) (err error) {
if ctx.IsWindows() {
err = GitCloneUpdate(local, MsysgitPath, MsysgitRepoUrl, MsysgitVersion)
if err != nil {
return err
}
err = GitCloneUpdate(local, GutWinSrcPath, GitWinRepoUrl, GitWinVersion)
if err != nil {
return err
}
err = RewriteGitToGut(local, GutWinSrcPath)
} else {
err = GitCloneUpdate(local, GutSrcPath, GitRepoUrl, GitVersion)
if err != nil {
return err
}
err = RewriteGitToGut(local, GutSrcPath)
}
return err
}
func (ctx *SyncContext) GutBuild(buildPath string) (err error) {
buildPath = ctx.AbsPath(buildPath)
gutDistPath := ctx.AbsPath(GutDistPath)
var installPrefix string
if ctx.IsWindows() {
installPrefix = "prefix=" + WindowsPathToMingwPath(gutDistPath)
} else {
installPrefix = "prefix=" + gutDistPath
}
status := ctx.NewLogger("build")
defer status.Close()
doMake := func(name string, args ...string) (retCode int, err error) {
if ctx.IsWindows() {
makePath := ctx.AbsPath(path.Join(MsysgitPath, "bin/make.exe"))
cdCmd := shellquote.Join("cd", buildPath)
makeCmd := "PATH=/bin:/mingw/bin NO_GETTEXT=1 " + shellquote.Join(append([]string{makePath}, args...)...)
return ctx.QuoteShell("make-"+name, cdCmd+" && "+makeCmd)
} else {
return ctx.QuoteCwd("make-"+name, buildPath, append([]string{"make"}, args...)...)
}
}
if !ctx.IsWindows() {
status.Printf("@(dim:Configuring Makefile for gut...)\n")
retCode, err := doMake("configure", installPrefix, "configure")
if err != nil || retCode != 0 {
Shutdown(status.Colorify("@(error:`make configure` failed during gut build.)"), 1)
}
retCode, err = ctx.QuoteCwd("autoconf", buildPath, ctx.AbsPath(path.Join(buildPath, "configure")), installPrefix)
if err != nil || retCode != 0 {
Shutdown(status.Colorify("@(error:`configure` failed during gut build.)"), 1)
}
}
status.Printf("@(dim:Building gut...)\n")
retCode, err := doMake("build", installPrefix)
if err != nil || retCode != 0 {
Shutdown(status.Colorify("@(error:`make` failed during gut build.)"), 1)
}
status.Printf("@(dim:Finished building gut.)\n")
status.Printf("@(dim:Installing gut to) @(path:%s)@(dim:...)\n", gutDistPath)
retCode, err = doMake("install", installPrefix, "install")
if err != nil || retCode != 0 {
Shutdown(status.Colorify("@(error:`make install` failed during gut build.)"), 1)
}
status.Printf("@(dim:Finished installing gut to) @(path:%s)@(dim:.)\n", gutDistPath)
return nil
}
func GutUnprepare(local *SyncContext, ctx *SyncContext) (err error) {
if ctx.IsWindows() {
GitHardResetAndClean(local, MsysgitPath, MsysgitRepoUrl, MsysgitVersion)
GitHardResetAndClean(local, GutWinSrcPath, GitWinRepoUrl, GitWinVersion)
} else {
GitHardResetAndClean(local, GutSrcPath, GitRepoUrl, GitVersion)
}
if !ctx.IsLocal() {
_, err = ctx.Quote("cleanup", "rm", "-r", ctx.AbsPath(GutSrcTmpPath))
if err != nil {
return err
}
}
return nil
}
func BuildGut(local *SyncContext, ctx *SyncContext) (err error) {
status := ctx.Logger()
status.Printf("@(dim:Need to build gut on) %s@(dim:.)\n", ctx.NameAnsi())
err = ctx.EnsureGutFolders()
if err != nil {
status.Bail(err)
}
err = GutBuildPrepare(local, ctx)
if err != nil {
status.Bail(err)
}
var buildPath string
if ctx.IsLocal() {
if ctx.IsWindows() {
buildPath = GutWinSrcPath
} else {
buildPath = GutSrcPath
}
} else {
buildPath = GutSrcTmpPath
status := ctx.NewLogger("")
status.Printf("@(dim:Uploading) %s:@(path:%s) @(dim:to) %s:@(path:%s)@(dim:...)", local.NameAnsi(), GutSrcPath, ctx.NameAnsi(), buildPath)
local.UploadRecursiveExcludes(GutSrcPath, ctx.ExecContext, buildPath, []string{".git", "t"})
status.Printf(" @(dim: done.)\n")
}
err = ctx.GutBuild(buildPath)
if err != nil {
status.Bail(err)
}
status.Printf("@(dim:Cleaning up...)")
err = GutUnprepare(local, ctx)
if err != nil {
status.Bail(err)
}
status.Printf(" @(dim: done.)\n")
status.Printf("@(green:Successfully built gut commands.)\n")
return nil
}
func EnsureBuild(local *SyncContext, ctx *SyncContext) (didSomething bool, err error) {
if ctx.HasGutInstalled() {
return false, nil
}
err = BuildGut(local, ctx)
return true, err
}