mirror of https://gitea.com/gitea/tea
138 lines
3.6 KiB
Go
138 lines
3.6 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package cmd
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"os/exec"
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"github.com/adrg/xdg"
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"github.com/urfave/cli/v2"
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)
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// CmdAutocomplete manages autocompletion
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var CmdAutocomplete = cli.Command{
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Name: "shellcompletion",
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Aliases: []string{"autocomplete"},
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Category: catSetup,
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Usage: "Install shell completion for tea",
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Description: "Install shell completion for tea",
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ArgsUsage: "<shell type> (bash, zsh, powershell, fish)",
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "install",
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Usage: "Persist in shell config instead of printing commands",
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},
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},
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Action: runAutocompleteAdd,
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}
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func runAutocompleteAdd(ctx *cli.Context) error {
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var remoteFile, localFile, cmds string
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shell := ctx.Args().First()
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switch shell {
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case "zsh":
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remoteFile = "contrib/autocomplete.zsh"
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localFile = "autocomplete.zsh"
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cmds = "echo 'PROG=tea _CLI_ZSH_AUTOCOMPLETE_HACK=1 source \"%s\"' >> ~/.zshrc && source ~/.zshrc"
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case "bash":
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remoteFile = "contrib/autocomplete.sh"
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localFile = "autocomplete.sh"
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cmds = "echo 'PROG=tea source \"%s\"' >> ~/.bashrc && source ~/.bashrc"
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case "powershell":
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remoteFile = "contrib/autocomplete.ps1"
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localFile = "tea.ps1"
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cmds = "\"& %s\" >> $profile"
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case "fish":
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// fish is different, in that urfave/cli provides a generator for the shell script needed.
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// this also means that the fish completion can become out of sync with the tea binary!
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// writing to this directory suffices, as fish reads files there on startup, no cmds needed.
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return writeFishAutoCompleteFile(ctx)
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default:
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return fmt.Errorf("Must specify valid %s", ctx.Command.ArgsUsage)
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}
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localPath, err := xdg.ConfigFile("tea/" + localFile)
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if err != nil {
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return err
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}
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cmds = fmt.Sprintf(cmds, localPath)
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if err = writeRemoteAutoCompleteFile(remoteFile, localPath); err != nil {
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return err
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}
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if ctx.Bool("install") {
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fmt.Println("Installing in your shellrc")
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installer := exec.Command(shell, "-c", cmds)
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if shell == "powershell" {
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installer = exec.Command("powershell.exe", "-Command", cmds)
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}
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out, err := installer.CombinedOutput()
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if err != nil {
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return fmt.Errorf("Couldn't run the commands: %s %s", err, out)
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}
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} else {
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fmt.Println("\n# Run the following commands to install autocompletion (or use --install)")
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fmt.Println(cmds)
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}
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return nil
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}
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func writeRemoteAutoCompleteFile(file, destPath string) error {
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url := fmt.Sprintf("https://gitea.com/gitea/tea/raw/branch/master/%s", file)
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fmt.Println("Fetching " + url)
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res, err := http.Get(url)
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if err != nil {
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return err
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}
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defer res.Body.Close()
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writer, err := os.Create(destPath)
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if err != nil {
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return err
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}
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defer writer.Close()
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_, err = io.Copy(writer, res.Body)
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return err
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}
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func writeFishAutoCompleteFile(ctx *cli.Context) error {
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// NOTE: to make sure this file is in sync with tea commands, we'd need to
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// - check if the file exists
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// - if it does, check if the tea version that wrote it is the currently running version
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// - if not, rewrite the file
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// on each application run
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// NOTE: this generates a completion that also suggests file names, which looks kinda messy..
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script, err := ctx.App.ToFishCompletion()
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if err != nil {
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return err
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}
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localPath, err := xdg.ConfigFile("fish/conf.d/tea_completion.fish")
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if err != nil {
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return err
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}
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writer, err := os.Create(localPath)
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if err != nil {
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return err
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}
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if _, err = io.WriteString(writer, script); err != nil {
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return err
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}
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fmt.Printf("Installed tab completion to %s\n", localPath)
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return nil
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}
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