Exemple #1
0
// getGoPath returns first item in the GOPATH list
// If there is no GOPATH set function sets GOPATH to ~/.srclib-gopath and returns ~/.srclib-gopath
func getGoPath() string {
	list := os.Getenv("GOPATH")
	if list == "" {
		goPath := path.Join(util.CurrentUserHomeDir(), ".srclib-gopath")
		os.Setenv("GOPATH", goPath)
		return goPath
	}
	return filepath.SplitList(list)[0]
}
Exemple #2
0
func init() {
	if Path == "" {
		homeDir := util.CurrentUserHomeDir()
		if homeDir == "" {
			log.Fatalf("Fatal: No SRCLIBPATH and current user has no home directory.")
		}
		Path = filepath.Join(homeDir, ".srclib")
		if err := os.Setenv("SRCLIBPATH", Path); err != nil {
			log.Fatalf("Fatal: Could not set SRCLIBPATH environment variable to %q.", Path)
		}
	}

	if CacheDir == "" {
		dirs := filepath.SplitList(Path)
		CacheDir = filepath.Join(dirs[0], ".cache")
	}
}
func installGoToolchain() error {
	const toolchain = "sourcegraph.com/sourcegraph/srclib-go"

	// Identify if Go is installed already or not.
	if _, err := exec.LookPath("go"); isExecErrNotFound(err) {
		return errors.New(`
Refusing to install Go toolchain because Go is not installed or is not on the
system path.

-> Please install the latest version of Go (https://golang.org/doc/install) and
run this command again.`)
	} else if err != nil {
		return err
	}

	if os.Getenv("GOPATH") == "" {
		os.Setenv("GOPATH", path.Join(util.CurrentUserHomeDir(), ".srclib-gopath"))
	}
	// Add symlink to GOPATH so install succeeds (necessary as long as there's a Go dependency in this toolchain)
	if err := symlinkToGopath(toolchain); err != nil {
		return err
	}

	srclibpathDir := filepath.Join(filepath.SplitList(srclib.Path)[0], toolchain) // toolchain dir under SRCLIBPATH
	if err := os.MkdirAll(filepath.Dir(srclibpathDir), 0700); err != nil {
		return err
	}

	log.Println("Downloading Go toolchain")
	if err := cloneToolchain(srclibpathDir, toolchain); err != nil {
		return err
	}

	log.Println("Building Go toolchain program")
	if err := execCmdInDir(srclibpathDir, "make"); err != nil {
		return err
	}

	return nil
}