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More work on porting diff kitten

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This commit is contained in:
Kovid Goyal 2023-03-16 21:46:00 +05:30
parent d208670172
commit 3c550bcd28
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GPG key ID: 06BC317B515ACE7C
6 changed files with 172 additions and 19 deletions
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27
tools/cmd/diff/main.go
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@ -4,6 +4,7 @@ package diff
import (
"fmt"
"os"
"kitty/tools/cli"
"kitty/tools/config"
@ -26,6 +27,18 @@ 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)
@ -35,7 +48,19 @@ func main(_ *cli.Command, opts_ *Options, args []string) (rc int, err error) {
if len(args) != 2 {
return 1, fmt.Errorf("You must specify exactly two files/directories to compare")
}
left, right := args[0], args[1]
if err = set_diff_command(conf.Diff_cmd); err != nil {
return 1, err
}
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