1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
// License: GPLv3 Copyright: 2023, Kovid Goyal, <kovid at kovidgoyal.net>
package diff
import (
"archive/tar"
"bytes"
"fmt"
"io"
"io/fs"
"os"
"os/exec"
"path/filepath"
"strings"
"github.com/kovidgoyal/kitty/kittens/ssh"
"github.com/kovidgoyal/kitty/tools/cli"
"github.com/kovidgoyal/kitty/tools/config"
"github.com/kovidgoyal/kitty/tools/tui/loop"
"github.com/kovidgoyal/kitty/tools/utils"
)
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
}
ans.KeyboardShortcuts = config.ResolveShortcuts(ans.KeyboardShortcuts)
return ans, nil
}
var conf *Config
var opts *Options
var lp *loop.Loop
var temp_files []string
func resolve_path(path string) (ans string, is_dir bool, err error) {
var s fs.FileInfo
if s, err = os.Stat(path); err != nil {
return
} else {
if s.Mode()&fs.ModeNamedPipe != 0 {
var src, dest *os.File
if src, err = os.Open(path); err != nil {
return
}
defer src.Close()
if dest, err = os.CreateTemp("", fmt.Sprintf("*-pipe-%s", filepath.Base(path))); err != nil {
return
}
defer dest.Close()
temp_files = append(temp_files, dest.Name())
if _, err = io.Copy(dest, src); err != nil {
return
}
return dest.Name(), false, nil
} else {
return path, s.IsDir(), nil
}
}
}
func get_ssh_file(hostname, rpath string) (string, error) {
tdir, err := os.MkdirTemp("", "*-"+hostname)
if err != nil {
return "", err
}
add_remote_dir(tdir)
is_abs := strings.HasPrefix(rpath, "/")
for strings.HasPrefix(rpath, "/") {
rpath = rpath[1:]
}
cmd := []string{ssh.SSHExe(), hostname, "tar", "--dereference", "--create", "--file", "-"}
if is_abs {
cmd = append(cmd, "-C", "/")
}
cmd = append(cmd, rpath)
c := exec.Command(cmd[0], cmd[1:]...)
c.Stdin, c.Stderr = os.Stdin, os.Stderr
stdout, err := c.Output()
if err != nil {
return "", fmt.Errorf("Failed to ssh into remote host %s to get file %s with error: %w", hostname, rpath, err)
}
tf := tar.NewReader(bytes.NewReader(stdout))
count, err := utils.ExtractAllFromTar(tf, tdir)
if err != nil {
return "", fmt.Errorf("Failed to untar data from remote host %s to get file %s with error: %w", hostname, rpath, err)
}
ans := filepath.Join(tdir, rpath)
if count == 1 {
if err = filepath.WalkDir(tdir, func(path string, d fs.DirEntry, err error) error {
if !d.IsDir() {
ans = path
return fs.SkipAll
}
return nil
}); err != nil {
return "", err
}
}
return ans, nil
}
func get_remote_file(path string) (string, error) {
if strings.HasPrefix(path, "ssh:") {
parts := strings.SplitN(path, ":", 3)
if len(parts) == 3 {
return get_ssh_file(parts[1], parts[2])
}
}
return path, 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
}
switch conf.Color_scheme {
case Color_scheme_light:
use_light_colors = true
case Color_scheme_dark:
use_light_colors = false
case Color_scheme_auto:
use_light_colors = false
}
init_caches()
defer func() {
for tdir := range remote_dirs {
os.RemoveAll(tdir)
}
}()
left, err := get_remote_file(args[0])
if err != nil {
return 1, err
}
right, err := get_remote_file(args[1])
if err != nil {
return 1, err
}
defer func() {
for _, path := range temp_files {
os.Remove(path)
}
}()
var left_is_dir, right_is_dir bool
if left, left_is_dir, err = resolve_path(left); err != nil {
return 1, err
}
if right, right_is_dir, err = resolve_path(right); err != nil {
return 1, err
}
if left_is_dir != right_is_dir {
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.'")
}
lp, err = loop.New()
loop.MouseTrackingMode(lp, loop.BUTTONS_AND_DRAG_MOUSE_TRACKING)
if err != nil {
return 1, err
}
lp.ColorSchemeChangeNotifications()
h := Handler{left: left, right: right, lp: lp}
lp.OnInitialize = func() (string, error) {
lp.SetCursorVisible(false)
lp.SetCursorShape(loop.BAR_CURSOR, true)
lp.AllowLineWrapping(false)
lp.SetWindowTitle(fmt.Sprintf("%s vs. %s", left, right))
lp.QueryCapabilities()
h.initialize()
return "", nil
}
lp.OnCapabilitiesReceived = func(tc loop.TerminalCapabilities) error {
if !tc.KeyboardProtocol {
return fmt.Errorf("This terminal does not support the kitty keyboard protocol, or you are running inside a terminal multiplexer that is blocking querying for kitty keyboard protocol support. The diff kitten cannot function without it.")
}
h.on_capabilities_received(tc)
return nil
}
lp.OnWakeup = h.on_wakeup
lp.OnFinalize = func() string {
lp.SetCursorVisible(true)
lp.SetCursorShape(loop.BLOCK_CURSOR, true)
h.finalize()
return ""
}
lp.OnResize = h.on_resize
lp.OnKeyEvent = h.on_key_event
lp.OnText = h.on_text
lp.OnMouseEvent = h.on_mouse_event
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)
}
|
