kitty/tools/cmd/diff/main.go
2023-03-27 07:53:54 +05:30

96 lines
2.0 KiB
Go

// License: GPLv3 Copyright: 2023, Kovid Goyal, <kovid at kovidgoyal.net>
package diff
import (
"fmt"
"os"
"kitty/tools/cli"
"kitty/tools/config"
"kitty/tools/tui/loop"
)
var _ = fmt.Print
func load_config(opts *Options) (ans *Config, err error) {
ans = NewConfig()
p := config.ConfigParser{LineHandler: ans.Parse}
err = p.LoadConfig("diff.conf", opts.Config, opts.Override)
if err != nil {
return nil, err
}
return ans, nil
}
var conf *Config
var opts *Options
var lp *loop.Loop
func isdir(path string) bool {
if s, err := os.Stat(path); err == nil {
return s.IsDir()
}
return false
}
func exists(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func main(_ *cli.Command, opts_ *Options, args []string) (rc int, err error) {
opts = opts_
conf, err = load_config(opts)
if err != nil {
return 1, err
}
if len(args) != 2 {
return 1, fmt.Errorf("You must specify exactly two files/directories to compare")
}
if err = set_diff_command(conf.Diff_cmd); err != nil {
return 1, err
}
init_caches()
left, right := get_remote_file(args[0]), get_remote_file(args[1])
if isdir(left) != isdir(right) {
return 1, fmt.Errorf("The items to be diffed should both be either directories or files. Comparing a directory to a file is not valid.'")
}
if !exists(left) {
return 1, fmt.Errorf("%s does not exist", left)
}
if !exists(right) {
return 1, fmt.Errorf("%s does not exist", right)
}
lp, err = loop.New()
if err != nil {
return 1, err
}
lp.OnInitialize = func() (string, error) {
lp.SetCursorVisible(false)
lp.AllowLineWrapping(false)
lp.SetWindowTitle(fmt.Sprintf("%s vs. %s", left, right))
return "", nil
}
lp.OnFinalize = func() string {
lp.SetCursorVisible(true)
return ""
}
err = lp.Run()
if err != nil {
return 1, err
}
ds := lp.DeathSignalName()
if ds != "" {
fmt.Println("Killed by signal: ", ds)
lp.KillIfSignalled()
return 1, nil
}
return
}
func EntryPoint(parent *cli.Command) {
create_cmd(parent, main)
}