tea/cmd/autocomplete.go

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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package cmd
import (
"fmt"
"io"
"net/http"
"os"
"os/exec"
"github.com/adrg/xdg"
"github.com/urfave/cli/v2"
)
// CmdAutocomplete manages autocompletion
var CmdAutocomplete = cli.Command{
Name: "shellcompletion",
Aliases: []string{"autocomplete"},
Category: catSetup,
Usage: "Install shell completion for tea",
Description: "Install shell completion for tea",
ArgsUsage: "<shell type> (bash, zsh, powershell)",
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "install",
Usage: "Persist in shell config instead of printing commands",
},
},
Action: runAutocompleteAdd,
}
func runAutocompleteAdd(ctx *cli.Context) error {
var remoteFile, localFile, cmds string
shell := ctx.Args().First()
switch shell {
case "zsh":
remoteFile = "contrib/autocomplete.zsh"
localFile = "autocomplete.zsh"
cmds = "echo 'PROG=tea _CLI_ZSH_AUTOCOMPLETE_HACK=1 source %s' >> ~/.zshrc && source ~/.zshrc"
case "bash":
remoteFile = "contrib/autocomplete.sh"
localFile = "autocomplete.sh"
cmds = "echo 'PROG=tea source %s' >> ~/.bashrc && source ~/.bashrc"
case "powershell":
remoteFile = "contrib/autocomplete.ps1"
localFile = "tea.ps1"
cmds = "\"& %s\" >> $profile"
default:
return fmt.Errorf("Must specify valid shell type")
}
localPath, err := xdg.ConfigFile("tea/" + localFile)
if err != nil {
return err
}
cmds = fmt.Sprintf(cmds, localPath)
if err := saveAutoCompleteFile(remoteFile, localPath); err != nil {
return err
}
if ctx.Bool("install") {
fmt.Println("Installing in your shellrc")
installer := exec.Command(shell, "-c", cmds)
if shell == "powershell" {
installer = exec.Command("powershell.exe", "-Command", cmds)
}
out, err := installer.CombinedOutput()
if err != nil {
return fmt.Errorf("Couldn't run the commands: %s %s", err, out)
}
} else {
fmt.Println("\n# Run the following commands to install autocompletion (or use --install)")
fmt.Println(cmds)
}
return nil
}
func saveAutoCompleteFile(file, destPath string) error {
url := fmt.Sprintf("https://gitea.com/gitea/tea/raw/branch/master/%s", file)
fmt.Println("Fetching " + url)
res, err := http.Get(url)
if err != nil {
return err
}
defer res.Body.Close()
writer, err := os.Create(destPath)
if err != nil {
return err
}
defer writer.Close()
_, err = io.Copy(writer, res.Body)
return err
}