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package main
import (
"fmt"
"github.com/docopt/docopt-go"
"os"
"os/exec"
)
func main() {
usage := `usage: git [--version] [--exec-path=<path>] [--html-path]
[-p|--paginate|--no-pager] [--no-replace-objects]
[--bare] [--git-dir=<path>] [--work-tree=<path>]
[-c <name>=<value>] [--help]
<command> [<args>...]
options:
-c <name=value>
-h, --help
-p, --paginate
The most commonly used git commands are:
add Add file contents to the index
branch List, create, or delete branches
checkout Checkout a branch or paths to the working tree
clone Clone a repository into a new directory
commit Record changes to the repository
push Update remote refs along with associated objects
remote Manage set of tracked repositories
See 'git help <command>' for more information on a specific command.
`
parser := &docopt.Parser{OptionsFirst: true}
args, _ := parser.ParseArgs(usage, nil, "git version 1.7.4.4")
cmd := args["<command>"].(string)
cmdArgs := args["<args>"].([]string)
fmt.Println("global arguments:", args)
fmt.Println("command arguments:", cmd, cmdArgs)
err := runCommand(cmd, cmdArgs)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func goRun(scriptName string, args []string) (err error) {
cmdArgs := make([]string, 2)
cmdArgs[0] = "run"
cmdArgs[1] = scriptName
cmdArgs = append(cmdArgs, args...)
osCmd := exec.Command("go", cmdArgs...)
var out []byte
out, err = osCmd.Output()
fmt.Println(string(out))
if err != nil {
return
}
return
}
func runCommand(cmd string, args []string) (err error) {
argv := append([]string{cmd}, args...)
switch cmd {
case "add":
// subcommand is a function call
return cmdAdd(argv)
case "branch":
// subcommand is a script
return goRun("branch/git_branch.go", argv)
case "checkout", "clone", "commit", "push", "remote":
// subcommand is a script
scriptName := fmt.Sprintf("%s/git_%s.go", cmd, cmd)
return goRun(scriptName, argv)
case "help", "":
return goRun("git.go", append(argv[1:], "--help"))
}
return fmt.Errorf("%s is not a git command. See 'git help'", cmd)
}
func cmdAdd(argv []string) (err error) {
usage := `usage: git add [options] [--] [<filepattern>...]
options:
-h, --help
-n, --dry-run dry run
-v, --verbose be verbose
-i, --interactive interactive picking
-p, --patch select hunks interactively
-e, --edit edit current diff and apply
-f, --force allow adding otherwise ignored files
-u, --update update tracked files
-N, --intent-to-add record only the fact that the path will be added later
-A, --all add all, noticing removal of tracked files
--refresh don't add, only refresh the index
--ignore-errors just skip files which cannot be added because of errors
--ignore-missing check if - even missing - files are ignored in dry run
`
args, _ := docopt.ParseDoc(usage)
fmt.Println(args)
return
}
|
