mirror of
https://github.com/golang/go
synced 2024-11-22 19:44:57 -07:00
95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"go/doc"
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"go/parser"
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"go/token"
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"log"
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"os"
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"path/filepath"
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"strings"
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)
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const MaxCommentLength = 500 // App Engine won't store more in a StringProperty.
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func (b *Builder) buildPackages(workpath string, hash string) os.Error {
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pkgs, err := packages()
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if err != nil {
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return err
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}
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for _, p := range pkgs {
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goroot := filepath.Join(workpath, "go")
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gobin := filepath.Join(goroot, "bin")
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goinstall := filepath.Join(gobin, "goinstall")
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envv := append(b.envv(), "GOROOT="+goroot)
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// add GOBIN to path
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for i, v := range envv {
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if strings.HasPrefix(v, "PATH=") {
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p := filepath.SplitList(v[5:])
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p = append([]string{gobin}, p...)
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s := strings.Join(p, string(filepath.ListSeparator))
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envv[i] = "PATH=" + s
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}
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}
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// goinstall
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buildLog, code, err := runLog(envv, "", goroot, goinstall, "-dashboard=false", p)
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if err != nil {
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log.Printf("goinstall %v: %v", p, err)
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}
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// get doc comment from package source
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info, err := packageComment(p, filepath.Join(goroot, "src", "pkg", p))
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if err != nil {
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log.Printf("packageComment %v: %v", p, err)
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}
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// update dashboard with build state + info
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err = b.updatePackage(p, code == 0, buildLog, info)
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if err != nil {
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log.Printf("updatePackage %v: %v", p, err)
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}
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}
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return nil
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}
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func isGoFile(fi *os.FileInfo) bool {
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return fi.IsRegular() && // exclude directories
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!strings.HasPrefix(fi.Name, ".") && // ignore .files
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filepath.Ext(fi.Name) == ".go"
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}
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func packageComment(pkg, pkgpath string) (info string, err os.Error) {
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fset := token.NewFileSet()
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pkgs, err := parser.ParseDir(fset, pkgpath, isGoFile, parser.PackageClauseOnly|parser.ParseComments)
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if err != nil {
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return
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}
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for name := range pkgs {
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if name == "main" {
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continue
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}
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if info != "" {
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return "", os.NewError("multiple non-main package docs")
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}
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pdoc := doc.NewPackageDoc(pkgs[name], pkg)
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info = pdoc.Doc
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}
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// grab only first paragraph
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if parts := strings.SplitN(info, "\n\n", 2); len(parts) > 1 {
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info = parts[0]
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}
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// replace newlines with spaces
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info = strings.Replace(info, "\n", " ", -1)
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// truncate
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if len(info) > MaxCommentLength {
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info = info[:MaxCommentLength]
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}
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return
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}
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