Advice shown when you used linkgit:git-checkout[1] to
move to the detach HEAD state, to instruct how to create
a local branch after the fact.
+ checkoutAmbiguousRemoteBranchName::
+ Advice shown when the argument to
+ linkgit:git-checkout[1] ambiguously resolves to a
+ remote tracking branch on more than one remote in
+ situations where an unambiguous argument would have
+ otherwise caused a remote-tracking branch to be
+ checked out. See the `checkout.defaultRemote`
+ configuration variable for how to set a given remote
+ to used by default in some situations where this
+ advice would be printed.
amWorkDir::
Advice that shows the location of the patch file when
linkgit:git-am[1] fails to apply it.
This setting defaults to "refs/notes/commits", and it can be overridden by
the `GIT_NOTES_REF` environment variable. See linkgit:git-notes[1].
-core.commitGraph::
- Enable git commit graph feature. Allows reading from the
- commit-graph file.
+gc.commitGraph::
+ If true, then gc will rewrite the commit-graph file when
+ linkgit:git-gc[1] is run. When using linkgit:git-gc[1]
+ '--auto' the commit-graph will be updated if housekeeping is
+ required. Default is false. See linkgit:git-commit-graph[1]
+ for details.
+
+core.useReplaceRefs::
+ If set to `false`, behave as if the `--no-replace-objects`
+ option was given on the command line. See linkgit:git[1] and
+ linkgit:git-replace[1] for more information.
core.sparseCheckout::
Enable "sparse checkout" feature. See section "Sparse checkout" in
browse HTML help (see `-w` option in linkgit:git-help[1]) or a
working repository in gitweb (see linkgit:git-instaweb[1]).
+checkout.defaultRemote::
+ When you run 'git checkout <something>' and only have one
+ remote, it may implicitly fall back on checking out and
+ tracking e.g. 'origin/<something>'. This stops working as soon
+ as you have more than one remote with a '<something>'
+ reference. This setting allows for setting the name of a
+ preferred remote that should always win when it comes to
+ disambiguation. The typical use-case is to set this to
+ `origin`.
++
+Currently this is used by linkgit:git-checkout[1] when 'git checkout
+<something>' will checkout the '<something>' branch on another remote,
+and by linkgit:git-worktree[1] when 'git worktree add' refers to a
+remote branch. This setting might be used for other checkout-like
+commands or functionality in the future.
+
clean.requireForce::
A boolean to make git-clean do nothing unless given -f,
-i or -n. Defaults to true.
true the default color mode will be used. When set to false,
moved lines are not colored.
+diff.colorMovedWS::
+ When moved lines are colored using e.g. the `diff.colorMoved` setting,
+ this option controls the `<mode>` how spaces are treated
+ for details of valid modes see '--color-moved-ws' in linkgit:git-diff[1].
+
color.diff.<slot>::
Use customized color for diff colorization. `<slot>` specifies
which part of the patch to use the specified color, and is one
fetch.fsckObjects::
If it is set to true, git-fetch-pack will check all fetched
- objects. It will abort in the case of a malformed object or a
- broken link. The result of an abort are only dangling objects.
- Defaults to false. If not set, the value of `transfer.fsckObjects`
- is used instead.
+ objects. See `transfer.fsckObjects` for what's
+ checked. Defaults to false. If not set, the value of
+ `transfer.fsckObjects` is used instead.
+
+ fetch.fsck.<msg-id>::
+ Acts like `fsck.<msg-id>`, but is used by
+ linkgit:git-fetch-pack[1] instead of linkgit:git-fsck[1]. See
+ the `fsck.<msg-id>` documentation for details.
+
+ fetch.fsck.skipList::
+ Acts like `fsck.skipList`, but is used by
+ linkgit:git-fetch-pack[1] instead of linkgit:git-fsck[1]. See
+ the `fsck.skipList` documentation for details.
fetch.unpackLimit::
If the number of objects fetched over the Git native
`full` and `compact`. Default value is `full`. See section
OUTPUT in linkgit:git-fetch[1] for detail.
+fetch.negotiationAlgorithm::
+ Control how information about the commits in the local repository is
+ sent when negotiating the contents of the packfile to be sent by the
+ server. Set to "skipping" to use an algorithm that skips commits in an
+ effort to converge faster, but may result in a larger-than-necessary
+ packfile; any other value instructs Git to use the default algorithm
+ that never skips commits (unless the server has acknowledged it or one
+ of its descendants).
+
format.attach::
Enable multipart/mixed attachments as the default for
'format-patch'. The value can also be a double quoted string
linkgit:gitattributes[5] for details.
fsck.<msg-id>::
- Allows overriding the message type (error, warn or ignore) of a
- specific message ID such as `missingEmail`.
- +
- For convenience, fsck prefixes the error/warning with the message ID,
- e.g. "missingEmail: invalid author/committer line - missing email" means
- that setting `fsck.missingEmail = ignore` will hide that issue.
- +
- This feature is intended to support working with legacy repositories
- which cannot be repaired without disruptive changes.
+ During fsck git may find issues with legacy data which
+ wouldn't be generated by current versions of git, and which
+ wouldn't be sent over the wire if `transfer.fsckObjects` was
+ set. This feature is intended to support working with legacy
+ repositories containing such data.
+ +
+ Setting `fsck.<msg-id>` will be picked up by linkgit:git-fsck[1], but
+ to accept pushes of such data set `receive.fsck.<msg-id>` instead, or
+ to clone or fetch it set `fetch.fsck.<msg-id>`.
+ +
+ The rest of the documentation discusses `fsck.*` for brevity, but the
+ same applies for the corresponding `receive.fsck.*` and
+ `fetch.<msg-id>.*`. variables.
+ +
+ Unlike variables like `color.ui` and `core.editor` the
+ `receive.fsck.<msg-id>` and `fetch.fsck.<msg-id>` variables will not
+ fall back on the `fsck.<msg-id>` configuration if they aren't set. To
+ uniformly configure the same fsck settings in different circumstances
+ all three of them they must all set to the same values.
+ +
+ When `fsck.<msg-id>` is set, errors can be switched to warnings and
+ vice versa by configuring the `fsck.<msg-id>` setting where the
+ `<msg-id>` is the fsck message ID and the value is one of `error`,
+ `warn` or `ignore`. For convenience, fsck prefixes the error/warning
+ with the message ID, e.g. "missingEmail: invalid author/committer line
+ - missing email" means that setting `fsck.missingEmail = ignore` will
+ hide that issue.
+ +
+ In general, it is better to enumerate existing objects with problems
+ with `fsck.skipList`, instead of listing the kind of breakages these
+ problematic objects share to be ignored, as doing the latter will
+ allow new instances of the same breakages go unnoticed.
+ +
+ Setting an unknown `fsck.<msg-id>` value will cause fsck to die, but
+ doing the same for `receive.fsck.<msg-id>` and `fetch.fsck.<msg-id>`
+ will only cause git to warn.
fsck.skipList::
The path to a sorted list of object names (i.e. one SHA-1 per
should be accepted despite early commits containing errors that
can be safely ignored such as invalid committer email addresses.
Note: corrupt objects cannot be skipped with this setting.
+ +
+ Like `fsck.<msg-id>` this variable has corresponding
+ `receive.fsck.skipList` and `fetch.fsck.skipList` variants.
+ +
+ Unlike variables like `color.ui` and `core.editor` the
+ `receive.fsck.skipList` and `fetch.fsck.skipList` variables will not
+ fall back on the `fsck.skipList` configuration if they aren't set. To
+ uniformly configure the same fsck settings in different circumstances
+ all three of them they must all set to the same values.
gc.aggressiveDepth::
The depth parameter used in the delta compression
signed, and the program is expected to send the result to its
standard output.
+gpg.format::
+ Specifies which key format to use when signing with `--gpg-sign`.
+ Default is "openpgp" and another possible value is "x509".
+
+gpg.<format>.program::
+ Use this to customize the program used for the signing format you
+ chose. (see `gpg.program` and `gpg.format`) `gpg.program` can still
+ be used as a legacy synonym for `gpg.openpgp.program`. The default
+ value for `gpg.x509.program` is "gpgsm".
+
gui.commitMsgWidth::
Defines how wide the commit message window is in the
linkgit:git-gui[1]. "75" is the default.
receive.fsckObjects::
If it is set to true, git-receive-pack will check all received
- objects. It will abort in the case of a malformed object or a
- broken link. The result of an abort are only dangling objects.
- Defaults to false. If not set, the value of `transfer.fsckObjects`
- is used instead.
+ objects. See `transfer.fsckObjects` for what's checked.
+ Defaults to false. If not set, the value of
+ `transfer.fsckObjects` is used instead.
receive.fsck.<msg-id>::
- When `receive.fsckObjects` is set to true, errors can be switched
- to warnings and vice versa by configuring the `receive.fsck.<msg-id>`
- setting where the `<msg-id>` is the fsck message ID and the value
- is one of `error`, `warn` or `ignore`. For convenience, fsck prefixes
- the error/warning with the message ID, e.g. "missingEmail: invalid
- author/committer line - missing email" means that setting
- `receive.fsck.missingEmail = ignore` will hide that issue.
- +
- This feature is intended to support working with legacy repositories
- which would not pass pushing when `receive.fsckObjects = true`, allowing
- the host to accept repositories with certain known issues but still catch
- other issues.
+ Acts like `fsck.<msg-id>`, but is used by
+ linkgit:git-receive-pack[1] instead of
+ linkgit:git-fsck[1]. See the `fsck.<msg-id>` documentation for
+ details.
receive.fsck.skipList::
- The path to a sorted list of object names (i.e. one SHA-1 per
- line) that are known to be broken in a non-fatal way and should
- be ignored. This feature is useful when an established project
- should be accepted despite early commits containing errors that
- can be safely ignored such as invalid committer email addresses.
- Note: corrupt objects cannot be skipped with this setting.
+ Acts like `fsck.skipList`, but is used by
+ linkgit:git-receive-pack[1] instead of
+ linkgit:git-fsck[1]. See the `fsck.skipList` documentation for
+ details.
receive.keepAlive::
After receiving the pack from the client, `receive-pack` may
When `fetch.fsckObjects` or `receive.fsckObjects` are
not set, the value of this variable is used instead.
Defaults to false.
+ +
+ When set, the fetch or receive will abort in the case of a malformed
+ object or a link to a nonexistent object. In addition, various other
+ issues are checked for, including legacy issues (see `fsck.<msg-id>`),
+ and potential security issues like the existence of a `.GIT` directory
+ or a malicious `.gitmodules` file (see the release notes for v2.2.1
+ and v2.17.1 for details). Other sanity and security checks may be
+ added in future releases.
+ +
+ On the receiving side, failing fsckObjects will make those objects
+ unreachable, see "QUARANTINE ENVIRONMENT" in
+ linkgit:git-receive-pack[1]. On the fetch side, malformed objects will
+ instead be left unreferenced in the repository.
+ +
+ Due to the non-quarantine nature of the `fetch.fsckObjects`
+ implementation it can not be relied upon to leave the object store
+ clean like `receive.fsckObjects` can.
+ +
+ As objects are unpacked they're written to the object store, so there
+ can be cases where malicious objects get introduced even though the
+ "fetch" failed, only to have a subsequent "fetch" succeed because only
+ new incoming objects are checked, not those that have already been
+ written to the object store. That difference in behavior should not be
+ relied upon. In the future, such objects may be quarantined for
+ "fetch" as well.
+ +
+ For now, the paranoid need to find some way to emulate the quarantine
+ environment if they'd like the same protection as "push". E.g. in the
+ case of an internal mirror do the mirroring in two steps, one to fetch
+ the untrusted objects, and then do a second "push" (which will use the
+ quarantine) to another internal repo, and have internal clients
+ consume this pushed-to repository, or embargo internal fetches and
+ only allow them once a full "fsck" has run (and no new fetches have
+ happened in the meantime).
transfer.hideRefs::
String(s) `receive-pack` and `upload-pack` use to decide which
#include "connect.h"
#include "transport.h"
#include "version.h"
-#include "prio-queue.h"
#include "sha1-array.h"
#include "oidset.h"
#include "packfile.h"
#include "object-store.h"
#include "connected.h"
+#include "fetch-negotiator.h"
+ #include "fsck.h"
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
static int server_supports_filtering;
static struct lock_file shallow_lock;
static const char *alternate_shallow_file;
+static char *negotiation_algorithm;
+ static struct strbuf fsck_msg_types = STRBUF_INIT;
/* Remember to update object flag allocation in object.h */
#define COMPLETE (1U << 0)
-#define COMMON (1U << 1)
-#define COMMON_REF (1U << 2)
-#define SEEN (1U << 3)
-#define POPPED (1U << 4)
-#define ALTERNATE (1U << 5)
-
-static int marked;
+#define ALTERNATE (1U << 1)
/*
* After sending this many "have"s if we do not get any new ACK , we
*/
#define MAX_IN_VAIN 256
-static struct prio_queue rev_list = { compare_commits_by_commit_date };
-static int non_common_revs, multi_ack, use_sideband;
+static int multi_ack, use_sideband;
/* Allow specifying sha1 if it is a ref tip. */
#define ALLOW_TIP_SHA1 01
/* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */
void *vcache)
{
struct alternate_object_cache *cache = vcache;
- struct object *obj = parse_object(oid);
+ struct object *obj = parse_object(the_repository, oid);
if (!obj || (obj->flags & ALTERNATE))
return;
cache->items[cache->nr++] = obj;
}
-static void for_each_cached_alternate(void (*cb)(struct object *))
+static void for_each_cached_alternate(struct fetch_negotiator *negotiator,
+ void (*cb)(struct fetch_negotiator *,
+ struct object *))
{
static int initialized;
static struct alternate_object_cache cache;
}
for (i = 0; i < cache.nr; i++)
- cb(cache.items[i]);
-}
-
-static void rev_list_push(struct commit *commit, int mark)
-{
- if (!(commit->object.flags & mark)) {
- commit->object.flags |= mark;
-
- if (parse_commit(commit))
- return;
-
- prio_queue_put(&rev_list, commit);
-
- if (!(commit->object.flags & COMMON))
- non_common_revs++;
- }
+ cb(negotiator, cache.items[i]);
}
-static int rev_list_insert_ref(const char *refname, const struct object_id *oid)
+static int rev_list_insert_ref(struct fetch_negotiator *negotiator,
+ const char *refname,
+ const struct object_id *oid)
{
- struct object *o = deref_tag(parse_object(oid), refname, 0);
+ struct object *o = deref_tag(the_repository,
+ parse_object(the_repository, oid),
+ refname, 0);
if (o && o->type == OBJ_COMMIT)
- rev_list_push((struct commit *)o, SEEN);
+ negotiator->add_tip(negotiator, (struct commit *)o);
return 0;
}
static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid,
int flag, void *cb_data)
{
- return rev_list_insert_ref(refname, oid);
-}
-
-static int clear_marks(const char *refname, const struct object_id *oid,
- int flag, void *cb_data)
-{
- struct object *o = deref_tag(parse_object(oid), refname, 0);
-
- if (o && o->type == OBJ_COMMIT)
- clear_commit_marks((struct commit *)o,
- COMMON | COMMON_REF | SEEN | POPPED);
- return 0;
-}
-
-/*
- This function marks a rev and its ancestors as common.
- In some cases, it is desirable to mark only the ancestors (for example
- when only the server does not yet know that they are common).
-*/
-
-static void mark_common(struct commit *commit,
- int ancestors_only, int dont_parse)
-{
- if (commit != NULL && !(commit->object.flags & COMMON)) {
- struct object *o = (struct object *)commit;
-
- if (!ancestors_only)
- o->flags |= COMMON;
-
- if (!(o->flags & SEEN))
- rev_list_push(commit, SEEN);
- else {
- struct commit_list *parents;
-
- if (!ancestors_only && !(o->flags & POPPED))
- non_common_revs--;
- if (!o->parsed && !dont_parse)
- if (parse_commit(commit))
- return;
-
- for (parents = commit->parents;
- parents;
- parents = parents->next)
- mark_common(parents->item, 0, dont_parse);
- }
- }
-}
-
-/*
- Get the next rev to send, ignoring the common.
-*/
-
-static const struct object_id *get_rev(void)
-{
- struct commit *commit = NULL;
-
- while (commit == NULL) {
- unsigned int mark;
- struct commit_list *parents;
-
- if (rev_list.nr == 0 || non_common_revs == 0)
- return NULL;
-
- commit = prio_queue_get(&rev_list);
- parse_commit(commit);
- parents = commit->parents;
-
- commit->object.flags |= POPPED;
- if (!(commit->object.flags & COMMON))
- non_common_revs--;
-
- if (commit->object.flags & COMMON) {
- /* do not send "have", and ignore ancestors */
- commit = NULL;
- mark = COMMON | SEEN;
- } else if (commit->object.flags & COMMON_REF)
- /* send "have", and ignore ancestors */
- mark = COMMON | SEEN;
- else
- /* send "have", also for its ancestors */
- mark = SEEN;
-
- while (parents) {
- if (!(parents->item->object.flags & SEEN))
- rev_list_push(parents->item, mark);
- if (mark & COMMON)
- mark_common(parents->item, 1, 0);
- parents = parents->next;
- }
- }
-
- return &commit->object.oid;
+ return rev_list_insert_ref(cb_data, refname, oid);
}
enum ack_type {
write_or_die(fd, buf->buf, buf->len);
}
-static void insert_one_alternate_object(struct object *obj)
+static void insert_one_alternate_object(struct fetch_negotiator *negotiator,
+ struct object *obj)
{
- rev_list_insert_ref(NULL, &obj->oid);
+ rev_list_insert_ref(negotiator, NULL, &obj->oid);
}
#define INITIAL_FLUSH 16
return count;
}
-static int find_common(struct fetch_pack_args *args,
+static void mark_tips(struct fetch_negotiator *negotiator,
+ const struct oid_array *negotiation_tips)
+{
+ int i;
+
+ if (!negotiation_tips) {
+ for_each_ref(rev_list_insert_ref_oid, negotiator);
+ return;
+ }
+
+ for (i = 0; i < negotiation_tips->nr; i++)
+ rev_list_insert_ref(negotiator, NULL,
+ &negotiation_tips->oid[i]);
+ return;
+}
+
+static int find_common(struct fetch_negotiator *negotiator,
+ struct fetch_pack_args *args,
int fd[2], struct object_id *result_oid,
struct ref *refs)
{
if (args->stateless_rpc && multi_ack == 1)
die(_("--stateless-rpc requires multi_ack_detailed"));
- if (marked)
- for_each_ref(clear_marks, NULL);
- marked = 1;
- for_each_ref(rev_list_insert_ref_oid, NULL);
- for_each_cached_alternate(insert_one_alternate_object);
+ mark_tips(negotiator, args->negotiation_tips);
+ for_each_cached_alternate(negotiator, insert_one_alternate_object);
fetching = 0;
for ( ; refs ; refs = refs->next) {
* interested in the case we *know* the object is
* reachable and we have already scanned it.
*/
- if (((o = lookup_object(remote->hash)) != NULL) &&
+ if (((o = lookup_object(the_repository, remote->hash)) != NULL) &&
(o->flags & COMPLETE)) {
continue;
}
if (skip_prefix(line, "unshallow ", &arg)) {
if (get_oid_hex(arg, &oid))
die(_("invalid unshallow line: %s"), line);
- if (!lookup_object(oid.hash))
+ if (!lookup_object(the_repository, oid.hash))
die(_("object not found: %s"), line);
/* make sure that it is parsed as shallow */
- if (!parse_object(&oid))
+ if (!parse_object(the_repository, &oid))
die(_("error in object: %s"), line);
if (unregister_shallow(&oid))
die(_("no shallow found: %s"), line);
retval = -1;
if (args->no_dependents)
goto done;
- while ((oid = get_rev())) {
+ while ((oid = negotiator->next(negotiator))) {
packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid));
print_verbose(args, "have %s", oid_to_hex(oid));
in_vain++;
case ACK_ready:
case ACK_continue: {
struct commit *commit =
- lookup_commit(result_oid);
+ lookup_commit(the_repository,
+ result_oid);
+ int was_common;
+
if (!commit)
die(_("invalid commit %s"), oid_to_hex(result_oid));
+ was_common = negotiator->ack(negotiator, commit);
if (args->stateless_rpc
&& ack == ACK_common
- && !(commit->object.flags & COMMON)) {
+ && !was_common) {
/* We need to replay the have for this object
* on the next RPC request so the peer knows
* it is in common with us.
} else if (!args->stateless_rpc
|| ack != ACK_common)
in_vain = 0;
- mark_common(commit, 0, 1);
retval = 0;
got_continue = 1;
- if (ack == ACK_ready) {
- clear_prio_queue(&rev_list);
+ if (ack == ACK_ready)
got_ready = 1;
- }
break;
}
}
print_verbose(args, _("giving up"));
break; /* give up */
}
+ if (got_ready)
+ break;
}
}
done:
static int mark_complete(const struct object_id *oid)
{
- struct object *o = parse_object(oid);
+ struct object *o = parse_object(the_repository, oid);
while (o && o->type == OBJ_TAG) {
struct tag *t = (struct tag *) o;
if (!t->tagged)
break; /* broken repository */
o->flags |= COMPLETE;
- o = parse_object(&t->tagged->oid);
+ o = parse_object(the_repository, &t->tagged->oid);
}
if (o && o->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *)o;
*refs = newlist;
}
-static void mark_alternate_complete(struct object *obj)
+static void mark_alternate_complete(struct fetch_negotiator *unused,
+ struct object *obj)
{
mark_complete(&obj->oid);
}
return 0;
}
-static int everything_local(struct fetch_pack_args *args,
- struct ref **refs,
- struct ref **sought, int nr_sought)
+/*
+ * Mark recent commits available locally and reachable from a local ref as
+ * COMPLETE. If args->no_dependents is false, also mark COMPLETE remote refs as
+ * COMMON_REF (otherwise, we are not planning to participate in negotiation, and
+ * thus do not need COMMON_REF marks).
+ *
+ * The cutoff time for recency is determined by this heuristic: it is the
+ * earliest commit time of the objects in refs that are commits and that we know
+ * the commit time of.
+ */
+static void mark_complete_and_common_ref(struct fetch_negotiator *negotiator,
+ struct fetch_pack_args *args,
+ struct ref **refs)
{
struct ref *ref;
- int retval;
int old_save_commit_buffer = save_commit_buffer;
timestamp_t cutoff = 0;
struct oidset loose_oid_set = OIDSET_INIT;
if (!has_object_file_with_flags(&ref->old_oid, flags))
continue;
- o = parse_object(&ref->old_oid);
+ o = parse_object(the_repository, &ref->old_oid);
if (!o)
continue;
if (!args->no_dependents) {
if (!args->deepen) {
for_each_ref(mark_complete_oid, NULL);
- for_each_cached_alternate(mark_alternate_complete);
+ for_each_cached_alternate(NULL, mark_alternate_complete);
commit_list_sort_by_date(&complete);
if (cutoff)
mark_recent_complete_commits(args, cutoff);
* Don't mark them common yet; the server has to be told so first.
*/
for (ref = *refs; ref; ref = ref->next) {
- struct object *o = deref_tag(lookup_object(ref->old_oid.hash),
+ struct object *o = deref_tag(the_repository,
+ lookup_object(the_repository,
+ ref->old_oid.hash),
NULL, 0);
if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE))
continue;
- if (!(o->flags & SEEN)) {
- rev_list_push((struct commit *)o, COMMON_REF | SEEN);
-
- mark_common((struct commit *)o, 1, 1);
- }
+ negotiator->known_common(negotiator,
+ (struct commit *)o);
}
}
- filter_refs(args, refs, sought, nr_sought);
+ save_commit_buffer = old_save_commit_buffer;
+}
+
+/*
+ * Returns 1 if every object pointed to by the given remote refs is available
+ * locally and reachable from a local ref, and 0 otherwise.
+ */
+static int everything_local(struct fetch_pack_args *args,
+ struct ref **refs)
+{
+ struct ref *ref;
+ int retval;
for (retval = 1, ref = *refs; ref ; ref = ref->next) {
const struct object_id *remote = &ref->old_oid;
struct object *o;
- o = lookup_object(remote->hash);
+ o = lookup_object(the_repository, remote->hash);
if (!o || !(o->flags & COMPLETE)) {
retval = 0;
print_verbose(args, "want %s (%s)", oid_to_hex(remote),
ref->name);
}
- save_commit_buffer = old_save_commit_buffer;
-
return retval;
}
*/
argv_array_push(&cmd.args, "--fsck-objects");
else
- argv_array_push(&cmd.args, "--strict");
+ argv_array_pushf(&cmd.args, "--strict%s",
+ fsck_msg_types.buf);
}
cmd.in = demux.out;
struct object_id oid;
const char *agent_feature;
int agent_len;
+ struct fetch_negotiator negotiator;
+ fetch_negotiator_init(&negotiator, negotiation_algorithm);
sort_ref_list(&ref, ref_compare_name);
QSORT(sought, nr_sought, cmp_ref_by_name);
if (!server_supports("deepen-relative") && args->deepen_relative)
die(_("Server does not support --deepen"));
- if (everything_local(args, &ref, sought, nr_sought)) {
+ mark_complete_and_common_ref(&negotiator, args, &ref);
+ filter_refs(args, &ref, sought, nr_sought);
+ if (everything_local(args, &ref)) {
packet_flush(fd[1]);
goto all_done;
}
- if (find_common(args, fd, &oid, ref) < 0)
+ if (find_common(&negotiator, args, fd, &oid, ref) < 0)
if (!args->keep_pack)
/* When cloning, it is not unusual to have
* no common commit.
die(_("git fetch-pack: fetch failed."));
all_done:
+ negotiator.release(&negotiator);
return ref;
}
* interested in the case we *know* the object is
* reachable and we have already scanned it.
*/
- if (((o = lookup_object(remote->hash)) != NULL) &&
+ if (((o = lookup_object(the_repository, remote->hash)) != NULL) &&
(o->flags & COMPLETE)) {
continue;
}
}
}
-static int add_haves(struct strbuf *req_buf, int *haves_to_send, int *in_vain)
+static int add_haves(struct fetch_negotiator *negotiator,
+ struct strbuf *req_buf,
+ int *haves_to_send, int *in_vain)
{
int ret = 0;
int haves_added = 0;
const struct object_id *oid;
- while ((oid = get_rev())) {
+ while ((oid = negotiator->next(negotiator))) {
packet_buf_write(req_buf, "have %s\n", oid_to_hex(oid));
if (++haves_added >= *haves_to_send)
break;
return ret;
}
-static int send_fetch_request(int fd_out, const struct fetch_pack_args *args,
+static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
+ const struct fetch_pack_args *args,
const struct ref *wants, struct oidset *common,
int *haves_to_send, int *in_vain)
{
add_common(&req_buf, common);
/* Add initial haves */
- ret = add_haves(&req_buf, haves_to_send, in_vain);
+ ret = add_haves(negotiator, &req_buf, haves_to_send, in_vain);
}
/* Send request */
int ret;
if (packet_reader_peek(reader) != PACKET_READ_NORMAL)
- die("error reading section header '%s'", section);
+ die(_("error reading section header '%s'"), section);
ret = !strcmp(reader->line, section);
if (!peek) {
if (!ret)
- die("expected '%s', received '%s'",
+ die(_("expected '%s', received '%s'"),
section, reader->line);
packet_reader_read(reader);
}
return ret;
}
-static int process_acks(struct packet_reader *reader, struct oidset *common)
+static int process_acks(struct fetch_negotiator *negotiator,
+ struct packet_reader *reader,
+ struct oidset *common)
{
/* received */
int received_ready = 0;
if (!get_oid_hex(arg, &oid)) {
struct commit *commit;
oidset_insert(common, &oid);
- commit = lookup_commit(&oid);
- mark_common(commit, 0, 1);
+ commit = lookup_commit(the_repository, &oid);
+ negotiator->ack(negotiator, commit);
}
continue;
}
if (!strcmp(reader->line, "ready")) {
- clear_prio_queue(&rev_list);
received_ready = 1;
continue;
}
- die("unexpected acknowledgment line: '%s'", reader->line);
+ die(_("unexpected acknowledgment line: '%s'"), reader->line);
}
if (reader->status != PACKET_READ_FLUSH &&
reader->status != PACKET_READ_DELIM)
- die("error processing acks: %d", reader->status);
+ die(_("error processing acks: %d"), reader->status);
/* return 0 if no common, 1 if there are common, or 2 if ready */
return received_ready ? 2 : (received_ack ? 1 : 0);
if (skip_prefix(reader->line, "unshallow ", &arg)) {
if (get_oid_hex(arg, &oid))
die(_("invalid unshallow line: %s"), reader->line);
- if (!lookup_object(oid.hash))
+ if (!lookup_object(the_repository, oid.hash))
die(_("object not found: %s"), reader->line);
/* make sure that it is parsed as shallow */
- if (!parse_object(&oid))
+ if (!parse_object(the_repository, &oid))
die(_("error in object: %s"), reader->line);
if (unregister_shallow(&oid))
die(_("no shallow found: %s"), reader->line);
if (reader->status != PACKET_READ_FLUSH &&
reader->status != PACKET_READ_DELIM)
- die("error processing shallow info: %d", reader->status);
+ die(_("error processing shallow info: %d"), reader->status);
setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, NULL);
args->deepen = 1;
}
-static void receive_wanted_refs(struct packet_reader *reader, struct ref *refs)
+static void receive_wanted_refs(struct packet_reader *reader,
+ struct ref **sought, int nr_sought)
{
process_section_header(reader, "wanted-refs", 0);
while (packet_reader_read(reader) == PACKET_READ_NORMAL) {
struct object_id oid;
const char *end;
- struct ref *r = NULL;
+ int i;
if (parse_oid_hex(reader->line, &oid, &end) || *end++ != ' ')
- die("expected wanted-ref, got '%s'", reader->line);
+ die(_("expected wanted-ref, got '%s'"), reader->line);
- for (r = refs; r; r = r->next) {
- if (!strcmp(end, r->name)) {
- oidcpy(&r->old_oid, &oid);
+ for (i = 0; i < nr_sought; i++) {
+ if (!strcmp(end, sought[i]->name)) {
+ oidcpy(&sought[i]->old_oid, &oid);
break;
}
}
- if (!r)
- die("unexpected wanted-ref: '%s'", reader->line);
+ if (i == nr_sought)
+ die(_("unexpected wanted-ref: '%s'"), reader->line);
}
if (reader->status != PACKET_READ_DELIM)
- die("error processing wanted refs: %d", reader->status);
+ die(_("error processing wanted refs: %d"), reader->status);
}
enum fetch_state {
struct packet_reader reader;
int in_vain = 0;
int haves_to_send = INITIAL_FLUSH;
+ struct fetch_negotiator negotiator;
+ fetch_negotiator_init(&negotiator, negotiation_algorithm);
packet_reader_init(&reader, fd[0], NULL, 0,
PACKET_READ_CHOMP_NEWLINE);
if (args->depth > 0 || args->deepen_since || args->deepen_not)
args->deepen = 1;
- if (marked)
- for_each_ref(clear_marks, NULL);
- marked = 1;
-
- for_each_ref(rev_list_insert_ref_oid, NULL);
- for_each_cached_alternate(insert_one_alternate_object);
-
/* Filter 'ref' by 'sought' and those that aren't local */
- if (everything_local(args, &ref, sought, nr_sought))
+ mark_complete_and_common_ref(&negotiator, args, &ref);
+ filter_refs(args, &ref, sought, nr_sought);
+ if (everything_local(args, &ref))
state = FETCH_DONE;
else
state = FETCH_SEND_REQUEST;
+
+ mark_tips(&negotiator, args->negotiation_tips);
+ for_each_cached_alternate(&negotiator,
+ insert_one_alternate_object);
break;
case FETCH_SEND_REQUEST:
- if (send_fetch_request(fd[1], args, ref, &common,
+ if (send_fetch_request(&negotiator, fd[1], args, ref,
+ &common,
&haves_to_send, &in_vain))
state = FETCH_GET_PACK;
else
break;
case FETCH_PROCESS_ACKS:
/* Process ACKs/NAKs */
- switch (process_acks(&reader, &common)) {
+ switch (process_acks(&negotiator, &reader, &common)) {
case 2:
state = FETCH_GET_PACK;
break;
receive_shallow_info(args, &reader);
if (process_section_header(&reader, "wanted-refs", 1))
- receive_wanted_refs(&reader, ref);
+ receive_wanted_refs(&reader, sought, nr_sought);
/* get the pack */
process_section_header(&reader, "packfile", 0);
}
}
+ negotiator.release(&negotiator);
oidset_clear(&common);
return ref;
}
+ static int fetch_pack_config_cb(const char *var, const char *value, void *cb)
+ {
+ if (strcmp(var, "fetch.fsck.skiplist") == 0) {
+ const char *path;
+
+ if (git_config_pathname(&path, var, value))
+ return 1;
+ strbuf_addf(&fsck_msg_types, "%cskiplist=%s",
+ fsck_msg_types.len ? ',' : '=', path);
+ free((char *)path);
+ return 0;
+ }
+
+ if (skip_prefix(var, "fetch.fsck.", &var)) {
+ if (is_valid_msg_type(var, value))
+ strbuf_addf(&fsck_msg_types, "%c%s=%s",
+ fsck_msg_types.len ? ',' : '=', var, value);
+ else
+ warning("Skipping unknown msg id '%s'", var);
+ return 0;
+ }
+
+ return git_default_config(var, value, cb);
+ }
+
static void fetch_pack_config(void)
{
git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit);
git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta);
git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects);
git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects);
+ git_config_get_string("fetch.negotiationalgorithm",
+ &negotiation_algorithm);
- git_config(git_default_config, NULL);
+ git_config(fetch_pack_config_cb, NULL);
}
static void fetch_pack_setup(void)
}
static void update_shallow(struct fetch_pack_args *args,
- struct ref *refs,
+ struct ref **sought, int nr_sought,
struct shallow_info *si)
{
struct oid_array ref = OID_ARRAY_INIT;
int *status;
int i;
- struct ref *r;
if (args->deepen && alternate_shallow_file) {
if (*alternate_shallow_file == '\0') { /* --unshallow */
remove_nonexistent_theirs_shallow(si);
if (!si->nr_ours && !si->nr_theirs)
return;
- for (r = refs; r; r = r->next)
- oid_array_append(&ref, &r->old_oid);
+ for (i = 0; i < nr_sought; i++)
+ oid_array_append(&ref, &sought[i]->old_oid);
si->ref = &ref;
if (args->update_shallow) {
* remote is also shallow, check what ref is safe to update
* without updating .git/shallow
*/
- status = xcalloc(ref.nr, sizeof(*status));
+ status = xcalloc(nr_sought, sizeof(*status));
assign_shallow_commits_to_refs(si, NULL, status);
if (si->nr_ours || si->nr_theirs) {
- for (r = refs, i = 0; r; r = r->next, i++)
+ for (i = 0; i < nr_sought; i++)
if (status[i])
- r->status = REF_STATUS_REJECT_SHALLOW;
+ sought[i]->status = REF_STATUS_REJECT_SHALLOW;
}
free(status);
oid_array_clear(&ref);
args->connectivity_checked = 1;
}
- update_shallow(args, ref_cpy, &si);
+ update_shallow(args, sought, nr_sought, &si);
cleanup:
clear_shallow_info(&si);
return ref_cpy;