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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Run "make install" to build package.
package main
import (
"bytes"
"os"
"path/filepath"
"template"
)
// domake builds the package in dir.
// If local is false, the package was copied from an external system.
// For non-local packages or packages without Makefiles,
// domake generates a standard Makefile and passes it
// to make on standard input.
func domake(dir, pkg string, root *pkgroot, local, isCmd bool) (err os.Error) {
needMakefile := true
if local {
_, err := os.Stat(dir + "/Makefile")
if err == nil {
needMakefile = false
}
}
cmd := []string{"gomake"}
var makefile []byte
if needMakefile {
if makefile, err = makeMakefile(dir, pkg, root, isCmd); err != nil {
return err
}
cmd = append(cmd, "-f-")
}
if *clean {
cmd = append(cmd, "clean")
}
cmd = append(cmd, "install")
return run(dir, makefile, cmd...)
}
// makeMakefile computes the standard Makefile for the directory dir
// installing as package pkg. It includes all *.go files in the directory
// except those in package main and those ending in _test.go.
func makeMakefile(dir, pkg string, root *pkgroot, isCmd bool) ([]byte, os.Error) {
if !safeName(pkg) {
return nil, os.ErrorString("unsafe name: " + pkg)
}
targ := pkg
targDir := root.pkgDir()
if isCmd {
// use the last part of the package name only
_, targ = filepath.Split(pkg)
// if building the working dir use the directory name
if targ == "." {
d, err := filepath.Abs(dir)
if err != nil {
return nil, os.NewError("finding path: " + err.String())
}
_, targ = filepath.Split(d)
}
targDir = root.binDir()
}
dirInfo, err := scanDir(dir, isCmd)
if err != nil {
return nil, err
}
cgoFiles := dirInfo.cgoFiles
isCgo := make(map[string]bool, len(cgoFiles))
for _, file := range cgoFiles {
if !safeName(file) {
return nil, os.ErrorString("bad name: " + file)
}
isCgo[file] = true
}
goFiles := make([]string, 0, len(dirInfo.goFiles))
for _, file := range dirInfo.goFiles {
if !safeName(file) {
return nil, os.ErrorString("unsafe name: " + file)
}
if !isCgo[file] {
goFiles = append(goFiles, file)
}
}
oFiles := make([]string, 0, len(dirInfo.cFiles)+len(dirInfo.sFiles))
cgoOFiles := make([]string, 0, len(dirInfo.cFiles))
for _, file := range dirInfo.cFiles {
if !safeName(file) {
return nil, os.ErrorString("unsafe name: " + file)
}
// When cgo is in use, C files are compiled with gcc,
// otherwise they're compiled with gc.
if len(cgoFiles) > 0 {
cgoOFiles = append(cgoOFiles, file[:len(file)-2]+".o")
} else {
oFiles = append(oFiles, file[:len(file)-2]+".$O")
}
}
for _, file := range dirInfo.sFiles {
if !safeName(file) {
return nil, os.ErrorString("unsafe name: " + file)
}
oFiles = append(oFiles, file[:len(file)-2]+".$O")
}
var buf bytes.Buffer
md := makedata{targ, targDir, "pkg", goFiles, oFiles, cgoFiles, cgoOFiles, imports}
if isCmd {
md.Type = "cmd"
}
if err := makefileTemplate.Execute(&buf, &md); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
var safeBytes = []byte("+-./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz")
func safeName(s string) bool {
if s == "" {
return false
}
for i := 0; i < len(s); i++ {
if c := s[i]; c < 0x80 && bytes.IndexByte(safeBytes, c) < 0 {
return false
}
}
return true
}
// makedata is the data type for the makefileTemplate.
type makedata struct {
Targ string // build target
TargDir string // build target directory
Type string // build type: "pkg" or "cmd"
GoFiles []string // list of non-cgo .go files
OFiles []string // list of .$O files
CgoFiles []string // list of cgo .go files
CgoOFiles []string // list of cgo .o files, without extension
Imports []string // gc/ld import paths
}
var makefileTemplate = template.MustParse(`
include $(GOROOT)/src/Make.inc
TARG={Targ}
TARGDIR={TargDir}
{.section GoFiles}
GOFILES=\
{.repeated section GoFiles}
{@}\
{.end}
{.end}
{.section OFiles}
OFILES=\
{.repeated section OFiles}
{@}\
{.end}
{.end}
{.section CgoFiles}
CGOFILES=\
{.repeated section CgoFiles}
{@}\
{.end}
{.end}
{.section CgoOFiles}
CGO_OFILES=\
{.repeated section CgoOFiles}
{@}\
{.end}
{.end}
GCIMPORTS={.repeated section Imports}-I "{@}" {.end}
LDIMPORTS={.repeated section Imports}-L "{@}" {.end}
include $(GOROOT)/src/Make.{Type}
`,
nil)
|
