add command remove

README.md

@@ -27,13 +27,13 @@ This application still in experiment, any change could happen, but it doesn't af
 
 ## Todo
 
-- Add support for downloading by tag and branch for packages in bitbucket.org, git.oschina.net, gitcafe.com.
 - Command `remove` is for removing packages.
+- Add support for downloading by tag and branch for packages in bitbucket.org, git.oschina.net, gitcafe.com.
 - Add gpm working principle design.
 - Add support for downloading tarballs from user sources.
 - After downloaded all packages in bundles or snapshots, need to check if all dependencies have been downloaded as well.
 - Develop user source API server template application to support user sources in bundles.
-- Add bundle and snapshot parser code for downloading by bundle or snapshot id.
+- Command `install` and `remove` Add bundle and snapshot parser code for downloading or removing by bundle or snapshot id.
 - Add user system to create, edit, upload, and download bundles or snapshots through gpm client program.
 - Download package from code.google.com only support hg as version control system, probably support git and svn.
 - Collect download and installation results and report to users in the end.
@@ -42,6 +42,9 @@ This application still in experiment, any change could happen, but it doesn't af
 - Command `daemon` is for auto-compile web applications when debug it locally.
 - Command `update` is for checking updates.
 - Command `search` is for searching packages.
+- Command `remove` add feature check for dependencies, make sure other packages don't import this one, and give choose for users.
+- Command `remove` also need to remove files in `GPPATH/bin` and `GOPATH/pkg`.
+- Command `remove` add flag `-d` for removing dependencies at the same time.
 - Add feature "struct generator".
 - i18n support for Chinese.
 - Add built-in application version in order to backup data when users update.

README_ZH.md

@@ -21,6 +21,10 @@ gpm（Go 包管理工具） 是一款涵盖搜索、安装、更新、分享以
 - `build` 编译并安装 Go 包以及其依赖包：该命令从底层调用 `go install` 命令，如果为 main 包，则会将可执行文件从 `GOPATH` 中移至当前目录，可执行文件的名称是由 `go install` 默认指定的当前文件夹名称。 
 - `install` 下载并安装 Go 包以及其依赖包：您无需安装像 git、hg 或 svn 这类版本控制工具就可以下载您指定的包。该命令也会自动下载相关的依赖包（当您使用集合或快照下载时，不会自动下载依赖包）。目前，该命令支持托管在 `code.google.com`、`github.com`、`launchpad.net` 和 `bitbucket.org` 上的开源项目。 
 
+## 已知问题
+
+- 当您使用命令例如 `gpm install -p bitbucket.org/zombiezen/gopdf` 时，你会在安装步骤时得到错误，虽然这是项目的根目录，但是并没有包含任何 Go 源代码，因此您必须使用 `gpm install -p bitbucket.org/zombiezen/gopdf/pdf` 才能正确完成安装。
+
 ## 授权许可
 
 [MIT-STYLE](LICENSE)

gpm.go

@@ -92,6 +92,7 @@ func (c *Command) Runnable() bool {
 var commands = []*Command{
 	cmdBuild,
 	cmdInstall,
+	cmdRemove,
 }
 
 // getAppPath returns application execute path for current process.

i18n/en-US/prompt.txt

@@ -10,6 +10,7 @@ UnknownFlag=Unknown flag: %s.
 DownloadError=Fail to download package(%s)[ %s ]
 NotFoundError=Import path prefix matches known service, but regexp does not.
 ErrNoMatch=Unsupported project hosting.
+PackageNotFound=Cannot find package: %s.
 
 MovedFile=Moved file from $GOPATH(%s) to current directory(%s).
 PureDownload=You enabled pure download.
@@ -25,4 +26,5 @@ SkipDownloaded=Skipped downloaded package: %s.
 SkipInvalidPath=Skipped invalid import path: %s.
 InstallByGoGet=Installing package(%s) through 'go get'.
 NoVCSTool=No version control tool is available, pure download enabled!
-DownloadStatus=Downloading package: %s.
+DownloadStatus=Downloading package: %s.
+RemovePackage=Removing package: %s.

i18n/en-US/usage_install.txt

@@ -25,4 +25,4 @@ For more about specifying packages, see 'go help packages'.
 For more about bundle, see 'gpm help bundle'.
 For more about snapshot, see 'gpm help snapshot'.
 
-See also: gpm build.
+See also: gpm remove.

i18n/en-US/usage_remove.txt

@@ -0,0 +1,15 @@
+remove packages and dependencies|||
+Remove removes the packages named by the import paths,
+along with their dependencies.
+
+The remove flags are:
+
+
+The list flags accept a space-separated list of strings. To embed spaces
+in an element in the list, surround it with either single or double quotes.
+
+For more about specifying packages, see 'go help packages'.
+For more about bundle, see 'gpm help bundle'.
+For more about snapshot, see 'gpm help snapshot'.
+
+See also: gpm install.

i18n/zh-CN/prompt.txt

@@ -10,6 +10,7 @@ UnknownFlag=未知参数: %s.
 DownloadError=下载包 (%s) 失败 [ %s ]
 NotFoundError=合法的源代码托管平台，但正则匹配失败.
 ErrNoMatch=不被支持的源代码托管平台.
+PackageNotFound=无法找到包: %s.
 
 MovedFile=成功将文件从 $GOPATH(%s) 移动至当前目录 (%s).
 PureDownload=已激活纯净下载模式.

i18n/zh-CN/usage_remove.txt

@@ -0,0 +1,15 @@
+remove packages and dependencies|||
+Remove removes the packages named by the import paths,
+along with their dependencies.
+
+The remove flags are:
+
+
+The list flags accept a space-separated list of strings. To embed spaces
+in an element in the list, surround it with either single or double quotes.
+
+For more about specifying packages, see 'go help packages'.
+For more about bundle, see 'gpm help bundle'.
+For more about snapshot, see 'gpm help snapshot'.
+
+See also: gpm install.

install.go

@@ -20,7 +20,7 @@ import (
 
 var (
 	isHasGit, isHasHg bool
-	downloadCache     map[string]bool // Saves packages that have downloaded.
+	downloadCache     map[string]bool // Saves packages that have been downloaded.
 	installGOPATH     string          // The GOPATH that packages are downloaded to.
 )
 

remove.go

@@ -0,0 +1,119 @@
+// Copyright (c) 2013 GPMGo Members. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"github.com/GPMGo/gpm/doc"
+	"github.com/GPMGo/gpm/utils"
+)
+
+var (
+	removeCache map[string]bool // Saves packages that have been removed.
+)
+
+var cmdRemove = &Command{
+	UsageLine: "remove [remove flags] <packages|bundles|snapshots>",
+}
+
+func init() {
+	removeCache = make(map[string]bool)
+	cmdRemove.Run = runRemove
+}
+
+func runRemove(cmd *Command, args []string) {
+	// Check length of arguments.
+	if len(args) < 1 {
+		fmt.Printf(fmt.Sprintf("%s\n", promptMsg["NoPackage"]))
+		return
+	}
+
+	// Generate temporary nodes.
+	nodes := make([]*doc.Node, len(args))
+	for i := range nodes {
+		nodes[i] = new(doc.Node)
+		nodes[i].ImportPath = args[i]
+	}
+
+	// Removes packages.
+	removePackages(nodes)
+
+	// Save local nodes to file.
+	fw, err := os.Create(appPath + "data/nodes.json")
+	if err != nil {
+		fmt.Printf(fmt.Sprintf("ERROR: runRemove -> %s\n", promptMsg["OpenFile"]), err)
+		return
+	}
+	defer fw.Close()
+	fbytes, err := json.MarshalIndent(&localNodes, "", "\t")
+	if err != nil {
+		fmt.Printf(fmt.Sprintf("ERROR: runRemove -> %s\n", promptMsg["ParseJSON"]), err)
+		return
+	}
+	fw.Write(fbytes)
+
+	fmt.Println("Well done.")
+}
+
+// removePackages removes packages from local file system.
+func removePackages(nodes []*doc.Node) {
+	// Check all packages, they may be bundles, snapshots or raw packages path.
+	for _, n := range nodes {
+		// Check if it is a bundle or snapshot.
+		switch {
+		case n.ImportPath[0] == 'B':
+		case n.ImportPath[0] == 'S':
+		case utils.IsValidRemotePath(n.ImportPath):
+			if !removeCache[n.ImportPath] {
+				// Remove package.
+				node, imports := removePackage(n)
+				if len(imports) > 0 {
+					fmt.Println("Check denpendencies for removing package has not been supported.")
+				}
+
+				// Remove record in local nodes.
+				if node != nil {
+					removeNode(node)
+				}
+			}
+		default:
+			// Invalid import path.
+			fmt.Printf(fmt.Sprintf("%s\n", promptMsg["SkipInvalidPath"]), n.ImportPath)
+		}
+	}
+}
+
+// removeNode removes node from local nodes.
+func removeNode(n *doc.Node) {
+	// Check if this node exists.
+	for i, v := range localNodes {
+		if n.ImportPath == v.ImportPath {
+			localNodes = append(localNodes[:i], localNodes[i+1:]...)
+			return
+		}
+	}
+}
+
+// removePackage removes package from local file system.
+func removePackage(node *doc.Node) (*doc.Node, []string) {
+	// Find package in GOPATH.
+	paths := utils.GetGOPATH()
+	for _, p := range paths {
+		absPath := p + "/src/" + node.ImportPath + "/"
+		if utils.IsExist(absPath) {
+			fmt.Printf(fmt.Sprintf("%s\n", promptMsg["RemovePackage"]), node.ImportPath)
+			// Remove files.
+			os.RemoveAll(absPath)
+			return node, nil
+		}
+	}
+
+	// Cannot find package.
+	fmt.Printf(fmt.Sprintf("%s\n", promptMsg["PackageNotFound"]), node.ImportPath)
+	return nil, nil
+}