diff options
Diffstat (limited to 'repo.go')
| -rw-r--r-- | repo.go | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/repo.go b/repo.go deleted file mode 100644 index 532b5d1..0000000 --- a/repo.go +++ /dev/null @@ -1,196 +0,0 @@ -/******************************************************************************* -* -* Copyright 2017 Stefan Majewsky <majewsky@gmx.net> -* -* This program is free software: you can redistribute it and/or modify it under -* the terms of the GNU General Public License as published by the Free Software -* Foundation, either version 3 of the License, or (at your option) any later -* version. -* -* This program is distributed in the hope that it will be useful, but WITHOUT ANY -* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR -* A PARTICULAR PURPOSE. See the GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License along with -* this program. If not, see <http://www.gnu.org/licenses/>. -* -*******************************************************************************/ - -package main - -import ( - "bytes" - "errors" - "fmt" - "os" - "os/exec" - "path/filepath" - "regexp" - "strings" -) - -//RootPath is the directory below which all repositories are located. Its value -//is $GOPATH/src to match the repository layout created by `go get`. -var RootPath string - -func init() { - gopath := os.Getenv("GOPATH") - if gopath == "" { - FatalIfError(errors.New("$GOPATH is not set (rtree needs the GOPATH variable to know where to look for and place repos)")) - } - RootPath = filepath.Join(gopath, "src") -} - -//Repo describes the entry for a repository in the index file. -type Repo struct { - //CheckoutPath shall be relative to the RootPath. - CheckoutPath string `yaml:"path"` - //Remotes maps remote names (as noted in the .git/config of the repo) to - //remote URLs (as they appear in the .git/config of the repo, i.e. possibly - //abbreviated). - Remotes []Remote `yaml:"remotes"` -} - -//Remote describes a remote that is configured in a Repo. -type Remote struct { - Name string `yaml:"name"` - URL string `yaml:"url"` -} - -//AbsolutePath returns the absolute CheckoutPath of this repo. -func (r Repo) AbsolutePath() string { - return filepath.Join(RootPath, r.CheckoutPath) -} - -//NewRepoFromAbsolutePath initializes a Repo instance by scanning the existing -//checkout at the given path. -func NewRepoFromAbsolutePath(path string) (repo Repo, err error) { - repo.CheckoutPath, err = filepath.Rel(RootPath, path) - if err != nil { - return - } - - //list remotes - cmd := exec.Command("git", "-C", path, "config", "-l") - var buf bytes.Buffer - cmd.Stdout = &buf - cmd.Stderr = os.Stderr - err = cmd.Run() - if err != nil { - return repo, fmt.Errorf("exec `git config -l` in %s: %s", path, err.Error()) - } - - for _, line := range strings.Split(string(buf.Bytes()), "\n") { - match := remoteConfigRx.FindStringSubmatch(line) - if match == nil { - continue - } - repo.Remotes = append(repo.Remotes, Remote{ - Name: match[1], - URL: match[2], - }) - } - return -} - -var remoteConfigRx = regexp.MustCompile(`remote\.([^=]+)\.url=(.+)`) - -//ForeachPhysicalRepo walks over the repository tree, executing the action -//function once for every repo encountered (but *not* for repos contained -//within other repos, e.g. submodules). -func ForeachPhysicalRepo(action func(repo Repo) error) error { - return filepath.Walk(RootPath, func(path string, info os.FileInfo, err error) error { - if err != nil { - return err - } - //look for repos, i.e. directories containing a .git directory - if !info.IsDir() { - return nil - } - _, err = os.Stat(filepath.Join(path, ".git")) - if err != nil { - return nil - } - - //appears to be a repo - repo, err := NewRepoFromAbsolutePath(path) - if err == nil { - err = action(repo) - } - if err != nil { - return err - } - //do not traverse further down into submodules etc. - return filepath.SkipDir - }) -} - -//Checkout creates the repo in the given path with the given remotes. The -//working copy will only be initialized if there is an "origin" remote. -func (r Repo) Checkout() error { - //check if we have an "origin" remote to clone from - var originURL string - for _, remote := range r.Remotes { - if remote.Name == "origin" { - originURL = remote.URL - break - } - } - - if originURL == "" { - cmd := exec.Command("git", "init", r.AbsolutePath()) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - err := cmd.Run() - if err != nil { - return err - } - fmt.Fprintln(os.Stderr, "warning: will not checkout anything since there is no remote named \"origin\"") - } else { - cmd := exec.Command("git", "clone", originURL, r.AbsolutePath()) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - err := cmd.Run() - if err != nil { - return err - } - } - - remotesAdded := false - for _, remote := range r.Remotes { - if remote.Name != "origin" { - cmd := exec.Command("git", "-C", r.AbsolutePath(), "remote", "add", remote.Name, remote.URL) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - err := cmd.Run() - if err != nil { - return err - } - remotesAdded = true - } - } - if remotesAdded { - cmd := exec.Command("git", "-C", r.AbsolutePath(), "remote", "update") - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - return cmd.Run() - } - - return nil -} - -//InteractiveExec implements the meat of the `rtree exec` command. It returns -//true iff the command exited successfully. -func (r Repo) InteractiveExec(command string, args ...string) (ok bool) { - fmt.Fprintf(os.Stdout, "\x1B[1;36m>> \x1B[0;36m%s\x1B[0m\n", r.AbsolutePath()) - cmd := exec.Command(command, args...) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - cmd.Dir = r.AbsolutePath() - err := cmd.Run() - if err != nil { - fmt.Fprintf(os.Stderr, "\x1B[1;31m!! \x1B[0;31m%s\x1B[0m\n", err.Error()) - return false - } - return true -} |