Thanks to visit codestin.com
Credit goes to github.com

Skip to content

Commit 5dcd2d6

Browse files
carlosmncarlosmn
committed
Merge pull request #2858 from pks-t/remote-squashed
examples: add remote example.
2 parents 7c3834d + 0a2f99f commit 5dcd2d6

File tree

3 files changed

+279
-1
lines changed

3 files changed

+279
-1
lines changed

‎examples/.gitignore‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -7,6 +7,7 @@ cat-file
77
init
88
log
99
rev-parse
10+
remote
1011
status
1112
tag
1213
for-each-ref

‎examples/Makefile‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
CC = gcc
44
CFLAGS = -g -I../include -I../src -Wall -Wextra -Wmissing-prototypes -Wno-missing-field-initializers
55
LFLAGS = -L../build -lgit2 -lz
6-
APPS = general showindex diff rev-list cat-file status log rev-parse init blame tag
6+
APPS = general showindex diff rev-list cat-file status log rev-parse init blame tag remote
77
APPS += for-each-ref
88

99
all: $(APPS)

‎examples/remote.c‎

Lines changed: 277 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,277 @@
1+
/*
2+
* libgit2 "remote" example - shows how to modify remotes for a repo
3+
*
4+
* Written by the libgit2 contributors
5+
*
6+
* To the extent possible under law, the author(s) have dedicated all copyright
7+
* and related and neighboring rights to this software to the public domain
8+
* worldwide. This software is distributed without any warranty.
9+
*
10+
* You should have received a copy of the CC0 Public Domain Dedication along
11+
* with this software. If not, see
12+
* <http://creativecommons.org/publicdomain/zero/1.0/>.
13+
*/
14+
15+
#include "common.h"
16+
17+
/**
18+
* This is a sample program that is similar to "git remote". See the
19+
* documentation for that (try "git help remote") to understand what this
20+
* program is emulating.
21+
*
22+
* This demonstrates using the libgit2 APIs to modify remotes of a repository.
23+
*/
24+
25+
enum subcmd {
26+
subcmd_add,
27+
subcmd_remove,
28+
subcmd_rename,
29+
subcmd_seturl,
30+
subcmd_show,
31+
};
32+
33+
struct opts {
34+
enum subcmd cmd;
35+
36+
/* for command-specific args */
37+
int argc;
38+
char **argv;
39+
};
40+
41+
static int cmd_add(git_repository *repo, struct opts *o);
42+
static int cmd_remove(git_repository *repo, struct opts *o);
43+
static int cmd_rename(git_repository *repo, struct opts *o);
44+
static int cmd_seturl(git_repository *repo, struct opts *o);
45+
static int cmd_show(git_repository *repo, struct opts *o);
46+
47+
static void parse_subcmd(
48+
struct opts *opt, int argc, char **argv);
49+
static void usage(const char *msg, const char *arg);
50+
51+
int main(int argc, char *argv[])
52+
{
53+
int retval = 0;
54+
struct opts opt = {0};
55+
git_buf buf = GIT_BUF_INIT_CONST(NULL, 0);
56+
git_repository *repo = NULL;
57+
58+
parse_subcmd(&opt, argc, argv);
59+
60+
git_libgit2_init();
61+
62+
check_lg2(git_repository_discover(&buf, ".", 0, NULL),
63+
"Could not find repository", NULL);
64+
65+
check_lg2(git_repository_open(&repo, buf.ptr),
66+
"Could not open repository", NULL);
67+
git_buf_free(&buf);
68+
69+
switch (opt.cmd)
70+
{
71+
case subcmd_add:
72+
retval = cmd_add(repo, &opt);
73+
break;
74+
case subcmd_remove:
75+
retval = cmd_remove(repo, &opt);
76+
break;
77+
case subcmd_rename:
78+
retval = cmd_rename(repo, &opt);
79+
break;
80+
case subcmd_seturl:
81+
retval = cmd_seturl(repo, &opt);
82+
break;
83+
case subcmd_show:
84+
retval = cmd_show(repo, &opt);
85+
break;
86+
}
87+
88+
git_libgit2_shutdown();
89+
90+
return retval;
91+
}
92+
93+
static int cmd_add(git_repository *repo, struct opts *o)
94+
{
95+
char *name, *url;
96+
git_remote *remote = {0};
97+
98+
if (o->argc != 2)
99+
usage("you need to specify a name and URL", NULL);
100+
101+
name = o->argv[0];
102+
url = o->argv[1];
103+
104+
check_lg2(git_remote_create(&remote, repo, name, url),
105+
"could not create remote", NULL);
106+
107+
return 0;
108+
}
109+
110+
static int cmd_remove(git_repository *repo, struct opts *o)
111+
{
112+
char *name;
113+
114+
if (o->argc != 1)
115+
usage("you need to specify a name", NULL);
116+
117+
name = o->argv[0];
118+
119+
check_lg2(git_remote_delete(repo, name),
120+
"could not delete remote", name);
121+
122+
return 0;
123+
}
124+
125+
static int cmd_rename(git_repository *repo, struct opts *o)
126+
{
127+
int i, retval;
128+
char *old, *new;
129+
git_strarray problems = {0};
130+
131+
if (o->argc != 2)
132+
usage("you need to specify old and new remote name", NULL);
133+
134+
old = o->argv[0];
135+
new = o->argv[1];
136+
137+
retval = git_remote_rename(&problems, repo, old, new);
138+
if (!retval)
139+
return 0;
140+
141+
for (i = 0; i < (int) problems.count; i++) {
142+
puts(problems.strings[0]);
143+
}
144+
145+
git_strarray_free(&problems);
146+
147+
return retval;
148+
}
149+
150+
static int cmd_seturl(git_repository *repo, struct opts *o)
151+
{
152+
int i, retval, push = 0;
153+
char *name = NULL, *url = NULL;
154+
git_remote *remote;
155+
156+
for (i = 0; i < o->argc; i++) {
157+
char *arg = o->argv[i];
158+
159+
if (!strcmp(arg, "--push")) {
160+
push = 1;
161+
} else if (arg[0] != '-' && name == NULL) {
162+
name = arg;
163+
} else if (arg[0] != '-' && url == NULL) {
164+
url = arg;
165+
} else {
166+
usage("invalid argument to set-url", arg);
167+
}
168+
}
169+
170+
if (name == NULL || url == NULL)
171+
usage("you need to specify remote and the new URL", NULL);
172+
173+
check_lg2(git_remote_lookup(&remote, repo, name),
174+
"could not look up remote", name);
175+
176+
if (push)
177+
retval = git_remote_set_pushurl(remote, url);
178+
else
179+
retval = git_remote_set_url(remote, url);
180+
check_lg2(retval, "could not set URL", url);
181+
182+
check_lg2(git_remote_save(remote),
183+
"could not save remote", NULL);
184+
185+
git_remote_free(remote);
186+
187+
return 0;
188+
}
189+
190+
static int cmd_show(git_repository *repo, struct opts *o)
191+
{
192+
int i;
193+
const char *arg, *name, *fetch, *push;
194+
int verbose = 0;
195+
git_strarray remotes = {0};
196+
git_remote *remote = {0};
197+
198+
for (i = 0; i < o->argc; i++) {
199+
arg = o->argv[i];
200+
201+
if (!strcmp(arg, "-v") || !strcmp(arg, "--verbose")) {
202+
verbose = 1;
203+
}
204+
}
205+
206+
check_lg2(git_remote_list(&remotes, repo),
207+
"could not retrieve remotes", NULL);
208+
209+
for (i = 0; i < (int) remotes.count; i++) {
210+
name = remotes.strings[i];
211+
if (!verbose) {
212+
puts(name);
213+
continue;
214+
}
215+
216+
check_lg2(git_remote_lookup(&remote, repo, name),
217+
"could not look up remote", name);
218+
219+
fetch = git_remote_url(remote);
220+
if (fetch)
221+
printf("%s\t%s (fetch)\n", name, fetch);
222+
push = git_remote_pushurl(remote);
223+
/* use fetch URL if no distinct push URL has been set */
224+
push = push ? push : fetch;
225+
if (push)
226+
printf("%s\t%s (push)\n", name, push);
227+
228+
git_remote_free(remote);
229+
}
230+
231+
git_strarray_free(&remotes);
232+
233+
return 0;
234+
}
235+
236+
static void parse_subcmd(
237+
struct opts *opt, int argc, char **argv)
238+
{
239+
char *arg = argv[1];
240+
enum subcmd cmd = 0;
241+
242+
if (argc < 2)
243+
usage("no command specified", NULL);
244+
245+
if (!strcmp(arg, "add")) {
246+
cmd = subcmd_add;
247+
} else if (!strcmp(arg, "remove")) {
248+
cmd = subcmd_remove;
249+
} else if (!strcmp(arg, "rename")) {
250+
cmd = subcmd_rename;
251+
} else if (!strcmp(arg, "set-url")) {
252+
cmd = subcmd_seturl;
253+
} else if (!strcmp(arg, "show")) {
254+
cmd = subcmd_show;
255+
} else {
256+
usage("command is not valid", arg);
257+
}
258+
opt->cmd = cmd;
259+
260+
opt->argc = argc - 2; /* executable and subcommand are removed */
261+
opt->argv = argv + 2;
262+
}
263+
264+
static void usage(const char *msg, const char *arg)
265+
{
266+
fputs("usage: remote add <name> <url>\n", stderr);
267+
fputs(" remote remove <name>\n", stderr);
268+
fputs(" remote rename <old> <new>\n", stderr);
269+
fputs(" remote set-url [--push] <name> <newurl>\n", stderr);
270+
fputs(" remote show [-v|--verbose]\n", stderr);
271+
272+
if (msg && !arg)
273+
fprintf(stderr, "\n%s\n", msg);
274+
else if (msg && arg)
275+
fprintf(stderr, "\n%s: %s\n", msg, arg);
276+
exit(1);
277+
}

0 commit comments

Comments
 (0)