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builtin-fetch: add --dry-run option

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Teach fetch --dry-run as users of "git remote prune" switching to "git fetch
--prune" may expect it. Unfortunately OPT__DRY_RUN() cannot be used as fetch
already uses "-n" for something else.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jay Soffian 2009-11-10 09:19:43 +01:00 committed by Junio C Hamano
parent f360d844de
commit 28a1540132
2 changed files with 15 additions and 4 deletions
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5
Documentation/fetch-options.txt
View File

@ -12,6 +12,11 @@
`git clone` with `--depth=<depth>` option (see linkgit:git-clone[1])
by the specified number of commits.
ifndef::git-pull[]
--dry-run::
Show what would be done, without making any changes.
endif::git-pull[]
-f::
--force::
When 'git-fetch' is used with `<rbranch>:<lbranch>`

14
builtin-fetch.c
View File

@ -26,7 +26,7 @@ enum {
TAGS_SET = 2
};
static int all, append, force, keep, multiple, prune, update_head_ok, verbosity;
static int all, append, dry_run, force, keep, multiple, prune, update_head_ok, verbosity;
static int tags = TAGS_DEFAULT;
static const char *depth;
static const char *upload_pack;
@ -51,6 +51,8 @@ static struct option builtin_fetch_options[] = {
"do not fetch all tags (--no-tags)", TAGS_UNSET),
OPT_BOOLEAN('p', "prune", &prune,
"prune tracking branches no longer on remote"),
OPT_BOOLEAN(0, "dry-run", &dry_run,
"dry run"),
OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"),
OPT_BOOLEAN('u', "update-head-ok", &update_head_ok,
"allow updating of HEAD ref"),
@ -187,6 +189,8 @@ static int s_update_ref(const char *action,
char *rla = getenv("GIT_REFLOG_ACTION");
static struct ref_lock *lock;
if (dry_run)
return 0;
if (!rla)
rla = default_rla.buf;
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
@ -312,7 +316,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
char note[1024];
const char *what, *kind;
struct ref *rm;
char *url, *filename = git_path("FETCH_HEAD");
char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
fp = fopen(filename, "a");
if (!fp)
@ -617,7 +621,7 @@ static int do_fetch(struct transport *transport,
die("Don't know how to fetch from %s", transport->url);
/* if not appending, truncate FETCH_HEAD */
if (!append) {
if (!append && !dry_run) {
char *filename = git_path("FETCH_HEAD");
FILE *fp = fopen(filename, "w");
if (!fp)
@ -725,9 +729,11 @@ static int add_remote_or_group(const char *name, struct string_list *list)
static int fetch_multiple(struct string_list *list)
{
int i, result = 0;
const char *argv[] = { "fetch", NULL, NULL, NULL, NULL, NULL };
const char *argv[] = { "fetch", NULL, NULL, NULL, NULL, NULL, NULL };
int argc = 1;
if (dry_run)
argv[argc++] = "--dry-run";
if (prune)
argv[argc++] = "--prune";
if (verbosity >= 2)