git-bug/misc/gen_completion.go

126 lines
2.9 KiB
Go

package main
import (
"fmt"
"os"
"path/filepath"
"sync"
"github.com/spf13/cobra"
"github.com/MichaelMure/git-bug/commands"
)
func main() {
fmt.Println("Generating completion files ...")
tasks := map[string]func(*cobra.Command) error{
"Bash": genBash,
"Fish": genFish,
"PowerShell": genPowerShell,
"ZSH": genZsh,
}
var wg sync.WaitGroup
for name, f := range tasks {
wg.Add(1)
go func(name string, f func(*cobra.Command) error) {
defer wg.Done()
root := commands.NewRootCommand()
err := f(root)
if err != nil {
fmt.Printf(" - %s: %v\n", name, err)
return
}
fmt.Printf(" - %s: ok\n", name)
}(name, f)
}
wg.Wait()
}
func genBash(root *cobra.Command) error {
cwd, err := os.Getwd()
if err != nil {
return err
}
f, err := os.Create(filepath.Join(cwd, "misc", "bash_completion", "git-bug"))
if err != nil {
return err
}
defer f.Close()
const patch = `
_git_bug() {
local cur prev words cword split
COMPREPLY=()
# Call _init_completion from the bash-completion package
# to prepare the arguments properly
if declare -F _init_completion >/dev/null 2>&1; then
_init_completion -n "=:" || return
else
__git-bug_init_completion -n "=:" || return
fi
# START PATCH
# replace in the array ("git","bug", ...) to ("git-bug", ...) and adjust the index in cword
words=("git-bug" "${words[@]:2}")
cword=$(($cword-1))
# END PATCH
__git-bug_debug
__git-bug_debug "========= starting completion logic =========="
__git-bug_debug "cur is ${cur}, words[*] is ${words[*]}, #words[@] is ${#words[@]}, cword is $cword"
# The user could have moved the cursor backwards on the command-line.
# We need to trigger completion from the $cword location, so we need
# to truncate the command-line ($words) up to the $cword location.
words=("${words[@]:0:$cword+1}")
__git-bug_debug "Truncated words[*]: ${words[*]},"
local out directive
__git-bug_get_completion_results
__git-bug_process_completion_results
}
`
err = root.GenBashCompletionV2(f, true)
if err != nil {
return err
}
// Custom bash code to connect the git completion for "git bug" to the
// git-bug completion for "git-bug"
_, err = f.WriteString(patch)
return err
}
func genFish(root *cobra.Command) error {
cwd, err := os.Getwd()
if err != nil {
return err
}
dir := filepath.Join(cwd, "misc", "fish_completion", "git-bug")
return root.GenFishCompletionFile(dir, true)
}
func genPowerShell(root *cobra.Command) error {
cwd, err := os.Getwd()
if err != nil {
return err
}
path := filepath.Join(cwd, "misc", "powershell_completion", "git-bug")
return root.GenPowerShellCompletionFile(path)
}
func genZsh(root *cobra.Command) error {
cwd, err := os.Getwd()
if err != nil {
return err
}
path := filepath.Join(cwd, "misc", "zsh_completion", "git-bug")
return root.GenZshCompletionFile(path)
}