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-rw-r--r--remote.c253
1 files changed, 107 insertions, 146 deletions
diff --git a/remote.c b/remote.c
index ee6edfa335..9d34b5a5da 100644
--- a/remote.c
+++ b/remote.c
@@ -8,6 +8,7 @@
#include "tag.h"
#include "string-list.h"
#include "mergesort.h"
+#include "argv-array.h"
enum map_direction { FROM_SRC, FROM_DST };
@@ -54,9 +55,6 @@ static const char *pushremote_name;
static struct rewrites rewrites;
static struct rewrites rewrites_push;
-#define BUF_SIZE (2048)
-static char buffer[BUF_SIZE];
-
static int valid_remote(const struct remote *remote)
{
return (!!remote->url) || (!!remote->foreign_vcs);
@@ -65,7 +63,6 @@ static int valid_remote(const struct remote *remote)
static const char *alias_url(const char *url, struct rewrites *r)
{
int i, j;
- char *ret;
struct counted_string *longest;
int longest_i;
@@ -86,11 +83,7 @@ static const char *alias_url(const char *url, struct rewrites *r)
if (!longest)
return url;
- ret = xmalloc(r->rewrite[longest_i]->baselen +
- (strlen(url) - longest->len) + 1);
- strcpy(ret, r->rewrite[longest_i]->base);
- strcpy(ret + r->rewrite[longest_i]->baselen, url + longest->len);
- return ret;
+ return xstrfmt("%s%s", r->rewrite[longest_i]->base, url + longest->len);
}
static void add_push_refspec(struct remote *remote, const char *ref)
@@ -248,106 +241,77 @@ static void add_instead_of(struct rewrite *rewrite, const char *instead_of)
rewrite->instead_of_nr++;
}
+static const char *skip_spaces(const char *s)
+{
+ while (isspace(*s))
+ s++;
+ return s;
+}
+
static void read_remotes_file(struct remote *remote)
{
+ struct strbuf buf = STRBUF_INIT;
FILE *f = fopen(git_path("remotes/%s", remote->name), "r");
if (!f)
return;
remote->origin = REMOTE_REMOTES;
- while (fgets(buffer, BUF_SIZE, f)) {
- int value_list;
- char *s, *p;
-
- if (starts_with(buffer, "URL:")) {
- value_list = 0;
- s = buffer + 4;
- } else if (starts_with(buffer, "Push:")) {
- value_list = 1;
- s = buffer + 5;
- } else if (starts_with(buffer, "Pull:")) {
- value_list = 2;
- s = buffer + 5;
- } else
- continue;
-
- while (isspace(*s))
- s++;
- if (!*s)
- continue;
+ while (strbuf_getline(&buf, f, '\n') != EOF) {
+ const char *v;
- p = s + strlen(s);
- while (isspace(p[-1]))
- *--p = 0;
+ strbuf_rtrim(&buf);
- switch (value_list) {
- case 0:
- add_url_alias(remote, xstrdup(s));
- break;
- case 1:
- add_push_refspec(remote, xstrdup(s));
- break;
- case 2:
- add_fetch_refspec(remote, xstrdup(s));
- break;
- }
+ if (skip_prefix(buf.buf, "URL:", &v))
+ add_url_alias(remote, xstrdup(skip_spaces(v)));
+ else if (skip_prefix(buf.buf, "Push:", &v))
+ add_push_refspec(remote, xstrdup(skip_spaces(v)));
+ else if (skip_prefix(buf.buf, "Pull:", &v))
+ add_fetch_refspec(remote, xstrdup(skip_spaces(v)));
}
+ strbuf_release(&buf);
fclose(f);
}
static void read_branches_file(struct remote *remote)
{
char *frag;
- struct strbuf branch = STRBUF_INIT;
- int n = 1000;
- FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r");
- char *s, *p;
- int len;
+ struct strbuf buf = STRBUF_INIT;
+ FILE *f = fopen(git_path("branches/%s", remote->name), "r");
if (!f)
return;
- s = fgets(buffer, BUF_SIZE, f);
+
+ strbuf_getline(&buf, f, '\n');
fclose(f);
- if (!s)
- return;
- while (isspace(*s))
- s++;
- if (!*s)
+ strbuf_trim(&buf);
+ if (!buf.len) {
+ strbuf_release(&buf);
return;
+ }
+
remote->origin = REMOTE_BRANCHES;
- p = s + strlen(s);
- while (isspace(p[-1]))
- *--p = 0;
- len = p - s;
- p = xmalloc(len + 1);
- strcpy(p, s);
/*
* The branches file would have URL and optionally
* #branch specified. The "master" (or specified) branch is
- * fetched and stored in the local branch of the same name.
+ * fetched and stored in the local branch matching the
+ * remote name.
*/
- frag = strchr(p, '#');
- if (frag) {
+ frag = strchr(buf.buf, '#');
+ if (frag)
*(frag++) = '\0';
- strbuf_addf(&branch, "refs/heads/%s", frag);
- } else
- strbuf_addstr(&branch, "refs/heads/master");
+ else
+ frag = "master";
+
+ add_url_alias(remote, strbuf_detach(&buf, NULL));
+ add_fetch_refspec(remote, xstrfmt("refs/heads/%s:refs/heads/%s",
+ frag, remote->name));
- strbuf_addf(&branch, ":refs/heads/%s", remote->name);
- add_url_alias(remote, p);
- add_fetch_refspec(remote, strbuf_detach(&branch, NULL));
/*
* Cogito compatible push: push current HEAD to remote #branch
* (master if missing)
*/
- strbuf_init(&branch, 0);
- strbuf_addstr(&branch, "HEAD");
- if (frag)
- strbuf_addf(&branch, ":refs/heads/%s", frag);
- else
- strbuf_addstr(&branch, ":refs/heads/master");
- add_push_refspec(remote, strbuf_detach(&branch, NULL));
+ add_push_refspec(remote, xstrfmt("HEAD:refs/heads/%s", frag));
remote->fetch_tags = 1; /* always auto-follow */
}
@@ -492,7 +456,7 @@ static void alias_all_urls(void)
static void read_config(void)
{
static int loaded;
- unsigned char sha1[20];
+ struct object_id oid;
const char *head_ref;
int flag;
@@ -501,7 +465,7 @@ static void read_config(void)
loaded = 1;
current_branch = NULL;
- head_ref = resolve_ref_unsafe("HEAD", 0, sha1, &flag);
+ head_ref = resolve_ref_unsafe("HEAD", 0, oid.hash, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
skip_prefix(head_ref, "refs/heads/", &head_ref)) {
current_branch = make_branch(head_ref, 0);
@@ -580,12 +544,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
if (fetch) {
- unsigned char unused[40];
+ struct object_id unused;
/* LHS */
if (!*rs[i].src)
; /* empty is ok; it means "HEAD" */
- else if (llen == 40 && !get_sha1_hex(rs[i].src, unused))
+ else if (llen == GIT_SHA1_HEXSZ && !get_oid_hex(rs[i].src, &unused))
rs[i].exact_sha1 = 1; /* ok */
else if (!check_refname_format(rs[i].src, flags))
; /* valid looking ref is ok */
@@ -1111,14 +1075,14 @@ static void tail_link_ref(struct ref *ref, struct ref ***tail)
static struct ref *alloc_delete_ref(void)
{
struct ref *ref = alloc_ref("(delete)");
- hashclr(ref->new_sha1);
+ oidclr(&ref->new_oid);
return ref;
}
static int try_explicit_object_name(const char *name,
struct ref **match)
{
- unsigned char sha1[20];
+ struct object_id oid;
if (!*name) {
if (match)
@@ -1126,12 +1090,12 @@ static int try_explicit_object_name(const char *name,
return 0;
}
- if (get_sha1(name, sha1))
+ if (get_sha1(name, oid.hash))
return -1;
if (match) {
*match = alloc_ref(name);
- hashcpy((*match)->new_sha1, sha1);
+ oidcpy(&(*match)->new_oid, &oid);
}
return 0;
}
@@ -1146,10 +1110,10 @@ static struct ref *make_linked_ref(const char *name, struct ref ***tail)
static char *guess_ref(const char *name, struct ref *peer)
{
struct strbuf buf = STRBUF_INIT;
- unsigned char sha1[20];
+ struct object_id oid;
const char *r = resolve_ref_unsafe(peer->name, RESOLVE_REF_READING,
- sha1, NULL);
+ oid.hash, NULL);
if (!r)
return NULL;
@@ -1207,12 +1171,12 @@ static int match_explicit(struct ref *src, struct ref *dst,
return -1;
if (!dst_value) {
- unsigned char sha1[20];
+ struct object_id oid;
int flag;
dst_value = resolve_ref_unsafe(matched_src->name,
RESOLVE_REF_READING,
- sha1, &flag);
+ oid.hash, &flag);
if (!dst_value ||
((flag & REF_ISSYMREF) &&
!starts_with(dst_value, "refs/heads/")))
@@ -1226,7 +1190,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
case 0:
if (starts_with(dst_value, "refs/"))
matched_dst = make_linked_ref(dst_value, dst_tail);
- else if (is_null_sha1(matched_src->new_sha1))
+ else if (is_null_oid(&matched_src->new_oid))
error("unable to delete '%s': remote ref does not exist",
dst_value);
else if ((dst_guess = guess_ref(dst_value, matched_src)))
@@ -1328,13 +1292,13 @@ struct tips {
int nr, alloc;
};
-static void add_to_tips(struct tips *tips, const unsigned char *sha1)
+static void add_to_tips(struct tips *tips, const struct object_id *oid)
{
struct commit *commit;
- if (is_null_sha1(sha1))
+ if (is_null_oid(oid))
return;
- commit = lookup_commit_reference_gently(sha1, 1);
+ commit = lookup_commit_reference_gently(oid->hash, 1);
if (!commit || (commit->object.flags & TMP_MARK))
return;
commit->object.flags |= TMP_MARK;
@@ -1357,10 +1321,10 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
memset(&sent_tips, 0, sizeof(sent_tips));
for (ref = *dst; ref; ref = ref->next) {
if (ref->peer_ref &&
- !is_null_sha1(ref->peer_ref->new_sha1))
- add_to_tips(&sent_tips, ref->peer_ref->new_sha1);
+ !is_null_oid(&ref->peer_ref->new_oid))
+ add_to_tips(&sent_tips, &ref->peer_ref->new_oid);
else
- add_to_tips(&sent_tips, ref->old_sha1);
+ add_to_tips(&sent_tips, &ref->old_oid);
if (starts_with(ref->name, "refs/tags/"))
string_list_append(&dst_tag, ref->name);
}
@@ -1374,7 +1338,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
continue; /* not a tag */
if (string_list_has_string(&dst_tag, ref->name))
continue; /* they already have it */
- if (sha1_object_info(ref->new_sha1, NULL) != OBJ_TAG)
+ if (sha1_object_info(ref->new_oid.hash, NULL) != OBJ_TAG)
continue; /* be conservative */
item = string_list_append(&src_tag, ref->name);
item->util = ref;
@@ -1394,9 +1358,9 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
struct ref *dst_ref;
struct commit *commit;
- if (is_null_sha1(ref->new_sha1))
+ if (is_null_oid(&ref->new_oid))
continue;
- commit = lookup_commit_reference_gently(ref->new_sha1, 1);
+ commit = lookup_commit_reference_gently(ref->new_oid.hash, 1);
if (!commit)
/* not pushing a commit, which is not an error */
continue;
@@ -1410,7 +1374,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
/* Add it in */
dst_ref = make_linked_ref(ref->name, dst_tail);
- hashcpy(dst_ref->new_sha1, ref->new_sha1);
+ oidcpy(&dst_ref->new_oid, &ref->new_oid);
dst_ref->peer_ref = copy_ref(ref);
}
}
@@ -1517,7 +1481,7 @@ int match_push_refs(struct ref *src, struct ref **dst,
/* Create a new one and link it */
dst_peer = make_linked_ref(dst_name, &dst_tail);
- hashcpy(dst_peer->new_sha1, ref->new_sha1);
+ oidcpy(&dst_peer->new_oid, &ref->new_oid);
string_list_insert(&dst_ref_index,
dst_peer->name)->util = dst_peer;
}
@@ -1569,13 +1533,13 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
int reject_reason = 0;
if (ref->peer_ref)
- hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
+ oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
else if (!send_mirror)
continue;
- ref->deletion = is_null_sha1(ref->new_sha1);
+ ref->deletion = is_null_oid(&ref->new_oid);
if (!ref->deletion &&
- !hashcmp(ref->old_sha1, ref->new_sha1)) {
+ !oidcmp(&ref->old_oid, &ref->new_oid)) {
ref->status = REF_STATUS_UPTODATE;
continue;
}
@@ -1594,7 +1558,7 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
*/
if (ref->expect_old_sha1) {
if (ref->expect_old_no_trackback ||
- hashcmp(ref->old_sha1, ref->old_sha1_expect))
+ oidcmp(&ref->old_oid, &ref->old_oid_expect))
reject_reason = REF_STATUS_REJECT_STALE;
}
@@ -1618,15 +1582,15 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
* passing the --force argument
*/
- else if (!ref->deletion && !is_null_sha1(ref->old_sha1)) {
+ else if (!ref->deletion && !is_null_oid(&ref->old_oid)) {
if (starts_with(ref->name, "refs/tags/"))
reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS;
- else if (!has_sha1_file(ref->old_sha1))
+ else if (!has_object_file(&ref->old_oid))
reject_reason = REF_STATUS_REJECT_FETCH_FIRST;
- else if (!lookup_commit_reference_gently(ref->old_sha1, 1) ||
- !lookup_commit_reference_gently(ref->new_sha1, 1))
+ else if (!lookup_commit_reference_gently(ref->old_oid.hash, 1) ||
+ !lookup_commit_reference_gently(ref->new_oid.hash, 1))
reject_reason = REF_STATUS_REJECT_NEEDS_FORCE;
- else if (!ref_newer(ref->new_sha1, ref->old_sha1))
+ else if (!ref_newer(&ref->new_oid, &ref->old_oid))
reject_reason = REF_STATUS_REJECT_NONFASTFORWARD;
}
@@ -1645,7 +1609,7 @@ static void set_merge(struct branch *ret)
{
struct remote *remote;
char *ref;
- unsigned char sha1[20];
+ struct object_id oid;
int i;
if (!ret)
@@ -1671,7 +1635,7 @@ static void set_merge(struct branch *ret)
strcmp(ret->remote_name, "."))
continue;
if (dwim_ref(ret->merge_name[i], strlen(ret->merge_name[i]),
- sha1, &ref) == 1)
+ oid.hash, &ref) == 1)
ret->merge[i]->dst = ref;
else
ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
@@ -1831,10 +1795,10 @@ const char *branch_get_push(struct branch *branch, struct strbuf *err)
static int ignore_symref_update(const char *refname)
{
- unsigned char sha1[20];
+ struct object_id oid;
int flag;
- if (!resolve_ref_unsafe(refname, 0, sha1, &flag))
+ if (!resolve_ref_unsafe(refname, 0, oid.hash, &flag))
return 0; /* non-existing refs are OK */
return (flag & REF_ISSYMREF);
}
@@ -1925,7 +1889,7 @@ int get_fetch_map(const struct ref *remote_refs,
if (refspec->exact_sha1) {
ref_map = alloc_ref(name);
- get_sha1_hex(name, ref_map->old_sha1);
+ get_oid_hex(name, &ref_map->old_oid);
} else {
ref_map = get_remote_ref(remote_refs, name);
}
@@ -1966,7 +1930,7 @@ int resolve_remote_symref(struct ref *ref, struct ref *list)
return 0;
for (; list; list = list->next)
if (!strcmp(ref->symref, list->name)) {
- hashcpy(ref->old_sha1, list->old_sha1);
+ oidcpy(&ref->old_oid, &list->old_oid);
return 0;
}
return 1;
@@ -1980,7 +1944,7 @@ static void unmark_and_free(struct commit_list *list, unsigned int mark)
}
}
-int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
+int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid)
{
struct object *o;
struct commit *old, *new;
@@ -1991,12 +1955,12 @@ int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
* Both new and old must be commit-ish and new is descendant of
* old. Otherwise we require --force.
*/
- o = deref_tag(parse_object(old_sha1), NULL, 0);
+ o = deref_tag(parse_object(old_oid->hash), NULL, 0);
if (!o || o->type != OBJ_COMMIT)
return 0;
old = (struct commit *) o;
- o = deref_tag(parse_object(new_sha1), NULL, 0);
+ o = deref_tag(parse_object(new_oid->hash), NULL, 0);
if (!o || o->type != OBJ_COMMIT)
return 0;
new = (struct commit *) o;
@@ -2031,12 +1995,11 @@ int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
const char **upstream_name)
{
- unsigned char sha1[20];
+ struct object_id oid;
struct commit *ours, *theirs;
- char symmetric[84];
struct rev_info revs;
- const char *rev_argv[10], *base;
- int rev_argc;
+ const char *base;
+ struct argv_array argv = ARGV_ARRAY_INIT;
/* Cannot stat unless we are marked to build on top of somebody else. */
base = branch_get_upstream(branch, NULL);
@@ -2046,15 +2009,15 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
return -1;
/* Cannot stat if what we used to build on no longer exists */
- if (read_ref(base, sha1))
+ if (read_ref(base, oid.hash))
return -1;
- theirs = lookup_commit_reference(sha1);
+ theirs = lookup_commit_reference(oid.hash);
if (!theirs)
return -1;
- if (read_ref(branch->refname, sha1))
+ if (read_ref(branch->refname, oid.hash))
return -1;
- ours = lookup_commit_reference(sha1);
+ ours = lookup_commit_reference(oid.hash);
if (!ours)
return -1;
@@ -2065,19 +2028,15 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
}
/* Run "rev-list --left-right ours...theirs" internally... */
- rev_argc = 0;
- rev_argv[rev_argc++] = NULL;
- rev_argv[rev_argc++] = "--left-right";
- rev_argv[rev_argc++] = symmetric;
- rev_argv[rev_argc++] = "--";
- rev_argv[rev_argc] = NULL;
-
- strcpy(symmetric, sha1_to_hex(ours->object.sha1));
- strcpy(symmetric + 40, "...");
- strcpy(symmetric + 43, sha1_to_hex(theirs->object.sha1));
+ argv_array_push(&argv, ""); /* ignored */
+ argv_array_push(&argv, "--left-right");
+ argv_array_pushf(&argv, "%s...%s",
+ oid_to_hex(&ours->object.oid),
+ oid_to_hex(&theirs->object.oid));
+ argv_array_push(&argv, "--");
init_revisions(&revs, NULL);
- setup_revisions(rev_argc, rev_argv, &revs, NULL);
+ setup_revisions(argv.argc, argv.argv, &revs, NULL);
if (prepare_revision_walk(&revs))
die("revision walk setup failed");
@@ -2097,6 +2056,8 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
/* clear object flags smudged by the above traversal */
clear_commit_marks(ours, ALL_REV_FLAGS);
clear_commit_marks(theirs, ALL_REV_FLAGS);
+
+ argv_array_clear(&argv);
return 0;
}
@@ -2179,7 +2140,7 @@ static int one_local_ref(const char *refname, const struct object_id *oid,
len = strlen(refname) + 1;
ref = xcalloc(1, sizeof(*ref) + len);
- hashcpy(ref->new_sha1, oid->hash);
+ oidcpy(&ref->new_oid, oid);
memcpy(ref->name, refname, len);
**local_tail = ref;
*local_tail = &ref->next;
@@ -2216,7 +2177,7 @@ struct ref *guess_remote_head(const struct ref *head,
/* If refs/heads/master could be right, it is. */
if (!all) {
r = find_ref_by_name(refs, "refs/heads/master");
- if (r && !hashcmp(r->old_sha1, head->old_sha1))
+ if (r && !oidcmp(&r->old_oid, &head->old_oid))
return copy_ref(r);
}
@@ -2224,7 +2185,7 @@ struct ref *guess_remote_head(const struct ref *head,
for (r = refs; r; r = r->next) {
if (r != head &&
starts_with(r->name, "refs/heads/") &&
- !hashcmp(r->old_sha1, head->old_sha1)) {
+ !oidcmp(&r->old_oid, &head->old_oid)) {
*tail = copy_ref(r);
tail = &((*tail)->next);
if (!all)
@@ -2272,7 +2233,7 @@ static int get_stale_heads_cb(const char *refname, const struct object_id *oid,
if (stale) {
struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
- hashcpy(ref->new_sha1, oid->hash);
+ oidcpy(&ref->new_oid, oid);
}
clean_exit:
@@ -2367,14 +2328,14 @@ int is_empty_cas(const struct push_cas_option *cas)
* If we cannot do so, return negative to signal an error.
*/
static int remote_tracking(struct remote *remote, const char *refname,
- unsigned char sha1[20])
+ struct object_id *oid)
{
char *dst;
dst = apply_refspecs(remote->fetch, remote->fetch_refspec_nr, refname);
if (!dst)
return -1; /* no tracking ref for refname at remote */
- if (read_ref(dst, sha1))
+ if (read_ref(dst, oid->hash))
return -1; /* we know what the tracking ref is but we cannot read it */
return 0;
}
@@ -2392,8 +2353,8 @@ static void apply_cas(struct push_cas_option *cas,
continue;
ref->expect_old_sha1 = 1;
if (!entry->use_tracking)
- hashcpy(ref->old_sha1_expect, cas->entry[i].expect);
- else if (remote_tracking(remote, ref->name, ref->old_sha1_expect))
+ hashcpy(ref->old_oid_expect.hash, cas->entry[i].expect);
+ else if (remote_tracking(remote, ref->name, &ref->old_oid_expect))
ref->expect_old_no_trackback = 1;
return;
}
@@ -2403,7 +2364,7 @@ static void apply_cas(struct push_cas_option *cas,
return;
ref->expect_old_sha1 = 1;
- if (remote_tracking(remote, ref->name, ref->old_sha1_expect))
+ if (remote_tracking(remote, ref->name, &ref->old_oid_expect))
ref->expect_old_no_trackback = 1;
}