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Diffstat (limited to 'builtin/fetch.c')
-rw-r--r--builtin/fetch.c174
1 files changed, 77 insertions, 97 deletions
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 9d481f8..33ad3aa 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -13,6 +13,7 @@
#include "sigchain.h"
#include "transport.h"
#include "submodule.h"
+#include "connected.h"
static const char * const builtin_fetch_usage[] = {
"git fetch [<options>] [<repository> [<refspec>...]]",
@@ -239,23 +240,23 @@ static int s_update_ref(const char *action,
static int update_local_ref(struct ref *ref,
const char *remote,
- char *display)
+ struct strbuf *display)
{
struct commit *current = NULL, *updated;
enum object_type type;
struct branch *current_branch = branch_get(NULL);
const char *pretty_ref = prettify_refname(ref->name);
- *display = 0;
type = sha1_object_info(ref->new_sha1, NULL);
if (type < 0)
die(_("object %s not found"), sha1_to_hex(ref->new_sha1));
if (!hashcmp(ref->old_sha1, ref->new_sha1)) {
if (verbosity > 0)
- sprintf(display, "= %-*s %-*s -> %s", TRANSPORT_SUMMARY_WIDTH,
- _("[up to date]"), REFCOL_WIDTH, remote,
- pretty_ref);
+ strbuf_addf(display, "= %-*s %-*s -> %s",
+ TRANSPORT_SUMMARY_WIDTH,
+ _("[up to date]"), REFCOL_WIDTH,
+ remote, pretty_ref);
return 0;
}
@@ -267,9 +268,10 @@ static int update_local_ref(struct ref *ref,
* If this is the head, and it's not okay to update
* the head, and the old value of the head isn't empty...
*/
- sprintf(display, _("! %-*s %-*s -> %s (can't fetch in current branch)"),
- TRANSPORT_SUMMARY_WIDTH, _("[rejected]"), REFCOL_WIDTH, remote,
- pretty_ref);
+ strbuf_addf(display,
+ _("! %-*s %-*s -> %s (can't fetch in current branch)"),
+ TRANSPORT_SUMMARY_WIDTH, _("[rejected]"),
+ REFCOL_WIDTH, remote, pretty_ref);
return 1;
}
@@ -277,9 +279,11 @@ static int update_local_ref(struct ref *ref,
!prefixcmp(ref->name, "refs/tags/")) {
int r;
r = s_update_ref("updating tag", ref, 0);
- sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : '-',
- TRANSPORT_SUMMARY_WIDTH, _("[tag update]"), REFCOL_WIDTH, remote,
- pretty_ref, r ? _(" (unable to update local ref)") : "");
+ strbuf_addf(display, "%c %-*s %-*s -> %s%s",
+ r ? '!' : '-',
+ TRANSPORT_SUMMARY_WIDTH, _("[tag update]"),
+ REFCOL_WIDTH, remote, pretty_ref,
+ r ? _(" (unable to update local ref)") : "");
return r;
}
@@ -302,9 +306,11 @@ static int update_local_ref(struct ref *ref,
}
r = s_update_ref(msg, ref, 0);
- sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : '*',
- TRANSPORT_SUMMARY_WIDTH, what, REFCOL_WIDTH, remote, pretty_ref,
- r ? _(" (unable to update local ref)") : "");
+ strbuf_addf(display, "%c %-*s %-*s -> %s%s",
+ r ? '!' : '*',
+ TRANSPORT_SUMMARY_WIDTH, what,
+ REFCOL_WIDTH, remote, pretty_ref,
+ r ? _(" (unable to update local ref)") : "");
return r;
}
@@ -318,9 +324,11 @@ static int update_local_ref(struct ref *ref,
(recurse_submodules != RECURSE_SUBMODULES_ON))
check_for_new_submodule_commits(ref->new_sha1);
r = s_update_ref("fast-forward", ref, 1);
- sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : ' ',
- TRANSPORT_SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote,
- pretty_ref, r ? _(" (unable to update local ref)") : "");
+ strbuf_addf(display, "%c %-*s %-*s -> %s%s",
+ r ? '!' : ' ',
+ TRANSPORT_SUMMARY_WIDTH, quickref,
+ REFCOL_WIDTH, remote, pretty_ref,
+ r ? _(" (unable to update local ref)") : "");
return r;
} else if (force || ref->force) {
char quickref[84];
@@ -332,26 +340,40 @@ static int update_local_ref(struct ref *ref,
(recurse_submodules != RECURSE_SUBMODULES_ON))
check_for_new_submodule_commits(ref->new_sha1);
r = s_update_ref("forced-update", ref, 1);
- sprintf(display, "%c %-*s %-*s -> %s (%s)", r ? '!' : '+',
- TRANSPORT_SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote,
- pretty_ref,
- r ? _("unable to update local ref") : _("forced update"));
+ strbuf_addf(display, "%c %-*s %-*s -> %s (%s)",
+ r ? '!' : '+',
+ TRANSPORT_SUMMARY_WIDTH, quickref,
+ REFCOL_WIDTH, remote, pretty_ref,
+ r ? _("unable to update local ref") : _("forced update"));
return r;
} else {
- sprintf(display, "! %-*s %-*s -> %s %s",
- TRANSPORT_SUMMARY_WIDTH, _("[rejected]"), REFCOL_WIDTH, remote,
- pretty_ref, _("(non-fast-forward)"));
+ strbuf_addf(display, "! %-*s %-*s -> %s %s",
+ TRANSPORT_SUMMARY_WIDTH, _("[rejected]"),
+ REFCOL_WIDTH, remote, pretty_ref,
+ _("(non-fast-forward)"));
return 1;
}
}
+static int iterate_ref_map(void *cb_data, unsigned char sha1[20])
+{
+ struct ref **rm = cb_data;
+ struct ref *ref = *rm;
+
+ if (!ref)
+ return -1; /* end of the list */
+ *rm = ref->next;
+ hashcpy(sha1, ref->old_sha1);
+ return 0;
+}
+
static int store_updated_refs(const char *raw_url, const char *remote_name,
struct ref *ref_map)
{
FILE *fp;
struct commit *commit;
- int url_len, i, note_len, shown_url = 0, rc = 0;
- char note[1024];
+ int url_len, i, shown_url = 0, rc = 0;
+ struct strbuf note = STRBUF_INIT;
const char *what, *kind;
struct ref *rm;
char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
@@ -364,6 +386,13 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
url = transport_anonymize_url(raw_url);
else
url = xstrdup("foreign");
+
+ rm = ref_map;
+ if (check_everything_connected(iterate_ref_map, 0, &rm)) {
+ rc = error(_("%s did not send all necessary objects\n"), url);
+ goto abort;
+ }
+
for (rm = ref_map; rm; rm = rm->next) {
struct ref *ref = NULL;
@@ -407,19 +436,16 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
if (4 < i && !strncmp(".git", url + i - 3, 4))
url_len = i - 3;
- note_len = 0;
+ strbuf_reset(&note);
if (*what) {
if (*kind)
- note_len += sprintf(note + note_len, "%s ",
- kind);
- note_len += sprintf(note + note_len, "'%s' of ", what);
+ strbuf_addf(&note, "%s ", kind);
+ strbuf_addf(&note, "'%s' of ", what);
}
- note[note_len] = '\0';
fprintf(fp, "%s\t%s\t%s",
- sha1_to_hex(commit ? commit->object.sha1 :
- rm->old_sha1),
+ sha1_to_hex(rm->old_sha1),
rm->merge ? "" : "not-for-merge",
- note);
+ note.buf);
for (i = 0; i < url_len; ++i)
if ('\n' == url[i])
fputs("\\n", fp);
@@ -427,29 +453,36 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
fputc(url[i], fp);
fputc('\n', fp);
+ strbuf_reset(&note);
if (ref) {
- rc |= update_local_ref(ref, what, note);
+ rc |= update_local_ref(ref, what, &note);
free(ref);
} else
- sprintf(note, "* %-*s %-*s -> FETCH_HEAD",
- TRANSPORT_SUMMARY_WIDTH, *kind ? kind : "branch",
- REFCOL_WIDTH, *what ? what : "HEAD");
- if (*note) {
+ strbuf_addf(&note, "* %-*s %-*s -> FETCH_HEAD",
+ TRANSPORT_SUMMARY_WIDTH,
+ *kind ? kind : "branch",
+ REFCOL_WIDTH,
+ *what ? what : "HEAD");
+ if (note.len) {
if (verbosity >= 0 && !shown_url) {
fprintf(stderr, _("From %.*s\n"),
url_len, url);
shown_url = 1;
}
if (verbosity >= 0)
- fprintf(stderr, " %s\n", note);
+ fprintf(stderr, " %s\n", note.buf);
}
}
- free(url);
- fclose(fp);
+
if (rc & STORE_REF_ERROR_DF_CONFLICT)
error(_("some local refs could not be updated; try running\n"
" 'git remote prune %s' to remove any old, conflicting "
"branches"), remote_name);
+
+ abort:
+ strbuf_release(&note);
+ free(url);
+ fclose(fp);
return rc;
}
@@ -457,23 +490,10 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
* We would want to bypass the object transfer altogether if
* everything we are going to fetch already exists and is connected
* locally.
- *
- * The refs we are going to fetch are in ref_map. If running
- *
- * $ git rev-list --objects --stdin --not --all
- *
- * (feeding all the refs in ref_map on its standard input)
- * does not error out, that means everything reachable from the
- * refs we are going to fetch exists and is connected to some of
- * our existing refs.
*/
static int quickfetch(struct ref *ref_map)
{
- struct child_process revlist;
- struct ref *ref;
- int err;
- const char *argv[] = {"rev-list",
- "--quiet", "--objects", "--stdin", "--not", "--all", NULL};
+ struct ref *rm = ref_map;
/*
* If we are deepening a shallow clone we already have these
@@ -484,47 +504,7 @@ static int quickfetch(struct ref *ref_map)
*/
if (depth)
return -1;
-
- if (!ref_map)
- return 0;
-
- memset(&revlist, 0, sizeof(revlist));
- revlist.argv = argv;
- revlist.git_cmd = 1;
- revlist.no_stdout = 1;
- revlist.no_stderr = 1;
- revlist.in = -1;
-
- err = start_command(&revlist);
- if (err) {
- error(_("could not run rev-list"));
- return err;
- }
-
- /*
- * If rev-list --stdin encounters an unknown commit, it terminates,
- * which will cause SIGPIPE in the write loop below.
- */
- sigchain_push(SIGPIPE, SIG_IGN);
-
- for (ref = ref_map; ref; ref = ref->next) {
- if (write_in_full(revlist.in, sha1_to_hex(ref->old_sha1), 40) < 0 ||
- write_str_in_full(revlist.in, "\n") < 0) {
- if (errno != EPIPE && errno != EINVAL)
- error(_("failed write to rev-list: %s"), strerror(errno));
- err = -1;
- break;
- }
- }
-
- if (close(revlist.in)) {
- error(_("failed to close rev-list's stdin: %s"), strerror(errno));
- err = -1;
- }
-
- sigchain_pop(SIGPIPE);
-
- return finish_command(&revlist) || err;
+ return check_everything_connected(iterate_ref_map, 1, &rm);
}
static int fetch_refs(struct transport *transport, struct ref *ref_map)