Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
Documentation/fetch-options.txt | 4 ++++
Documentation/git-fetch-pack.txt | 4 ++++
Documentation/gitremote-helpers.txt | 3 +++
builtin/fetch-pack.c | 4 ++++
builtin/fetch.c | 29 +++++++++++++++++++++++------
fetch-pack.c | 12 +++++++++++-
fetch-pack.h | 1 +
remote-curl.c | 11 +++++++++--
transport.c | 4 ++++
transport.h | 4 ++++
10 files changed, 67 insertions(+), 9 deletions(-)
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 952dfdf..8738d3d 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -14,6 +14,10 @@
linkgit:git-clone[1]), deepen or shorten the history to the specified
number of commits. Tags for the deepened commits are not fetched.
+--shallow-since=<date>::
+ Deepen or shorten the history of a shallow repository to
+ include all reachable commits after <date>.
+
--unshallow::
If the source repository is complete, convert a shallow
repository to a complete one, removing all the limitations
diff --git a/Documentation/git-fetch-pack.txt b/Documentation/git-fetch-pack.txt
index 8680f45..99e6257 100644
--- a/Documentation/git-fetch-pack.txt
+++ b/Documentation/git-fetch-pack.txt
@@ -87,6 +87,10 @@ be in a separate packet, and the list must end with a flush packet.
'git-upload-pack' treats the special depth 2147483647 as
infinite even if there is an ancestor-chain that long.
+--shallow-since=<date>::
+ Deepen or shorten the history of a shallow'repository to
+ include all reachable commits after <date>.
+
--no-progress::
Do not show the progress.
diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt
index 78e0b27..9971d9a 100644
--- a/Documentation/gitremote-helpers.txt
+++ b/Documentation/gitremote-helpers.txt
@@ -415,6 +415,9 @@ set by Git if the remote helper has the 'option' capability.
'option depth' <depth>::
Deepens the history of a shallow repository.
+'option deepen-since <timestamp>::
+ Deepens the history of a shallow repository based on time.
+
'option followtags' {'true'|'false'}::
If enabled the helper should automatically fetch annotated
tag objects if the object the tag points at was transferred
diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index 8332d3d..0402e27 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -104,6 +104,10 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
args.depth = strtol(arg, NULL, 0);
continue;
}
+ if (skip_prefix(arg, "--shallow-since=", &arg)) {
+ args.deepen_since = xstrdup(arg);
+ continue;
+ }
if (!strcmp("--no-progress", arg)) {
args.no_progress = 1;
continue;
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 8e74213..283aa95 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -36,9 +36,10 @@ static int prune = -1; /* unspecified */
static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity;
static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
-static int tags = TAGS_DEFAULT, unshallow, update_shallow;
+static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
static int max_children = 1;
static const char *depth;
+static const char *deepen_since;
static const char *upload_pack;
static struct strbuf default_rla = STRBUF_INIT;
static struct transport *gtransport;
@@ -115,6 +116,8 @@ static struct option builtin_fetch_options[] = {
OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
OPT_STRING(0, "depth", &depth, N_("depth"),
N_("deepen history of shallow clone")),
+ OPT_STRING(0, "shallow-since", &deepen_since, N_("time"),
+ N_("deepen history of shallow repository based on time")),
{ OPTION_SET_INT, 0, "unshallow", &unshallow, NULL,
N_("convert to a complete repository"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1 },
@@ -754,7 +757,7 @@ static int quickfetch(struct ref *ref_map)
* really need to perform. Claiming failure now will ensure
* we perform the network exchange to deepen our history.
*/
- if (depth)
+ if (deepen)
return -1;
return check_everything_connected(iterate_ref_map, 1, &rm);
}
@@ -859,7 +862,7 @@ static void set_option(struct transport *transport, const char *name, const char
name, transport->url);
}
-static struct transport *prepare_transport(struct remote *remote)
+static struct transport *prepare_transport(struct remote *remote, int deepen)
{
struct transport *transport;
transport = transport_get(remote, NULL);
@@ -870,6 +873,8 @@ static struct transport *prepare_transport(struct remote *remote)
set_option(transport, TRANS_OPT_KEEP, "yes");
if (depth)
set_option(transport, TRANS_OPT_DEPTH, depth);
+ if (deepen && deepen_since)
+ set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since);
if (update_shallow)
set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
return transport;
@@ -877,8 +882,18 @@ static struct transport *prepare_transport(struct remote *remote)
static void backfill_tags(struct transport *transport, struct ref *ref_map)
{
- if (transport->cannot_reuse) {
- gsecondary = prepare_transport(transport->remote);
+ int cannot_reuse;
+
+ /*
+ * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
+ * when remote helper is used (setting it to an empty string
+ * is not unsetting). We could extend the remote helper
+ * protocol for that, but for now, just force a new connection
+ * without deepen-since.
+ */
+ cannot_reuse = transport->cannot_reuse || deepen_since;
+ if (cannot_reuse) {
+ gsecondary = prepare_transport(transport->remote, 0);
transport = gsecondary;
}
@@ -1095,7 +1110,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
die(_("No remote repository specified. Please, specify either a URL or a\n"
"remote name from which new revisions should be fetched."));
- gtransport = prepare_transport(remote);
+ gtransport = prepare_transport(remote, 1);
if (prune < 0) {
/* no command line request */
@@ -1167,6 +1182,8 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
/* no need to be strict, transport_set_option() will validate it again */
if (depth && atoi(depth) < 1)
die(_("depth %s is not a positive number"), depth);
+ if (depth || deepen_since)
+ deepen = 1;
if (recurse_submodules != RECURSE_SUBMODULES_OFF) {
if (recurse_submodules_default) {
diff --git a/fetch-pack.c b/fetch-pack.c
index a14d24a..a2f25c1 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -21,6 +21,7 @@ static int fetch_unpack_limit = -1;
static int unpack_limit = 100;
static int prefer_ofs_delta = 1;
static int no_done;
+static int deepen_since_ok;
static int fetch_fsck_objects = -1;
static int transfer_fsck_objects = -1;
static int agent_supported;
@@ -326,6 +327,7 @@ static int find_common(struct fetch_pack_args *args,
if (args->no_progress) strbuf_addstr(&c, " no-progress");
if (args->include_tag) strbuf_addstr(&c, " include-tag");
if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta");
+ if (deepen_since_ok) strbuf_addstr(&c, " deepen-since");
if (agent_supported) strbuf_addf(&c, " agent=%s",
git_user_agent_sanitized());
packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf);
@@ -345,6 +347,10 @@ static int find_common(struct fetch_pack_args *args,
write_shallow_commits(&req_buf, 1, NULL);
if (args->depth > 0)
packet_buf_write(&req_buf, "deepen %d", args->depth);
+ if (args->deepen_since) {
+ unsigned long max_age = approxidate(args->deepen_since);
+ packet_buf_write(&req_buf, "deepen-since %lu", max_age);
+ }
packet_buf_flush(&req_buf);
state_len = req_buf.len;
@@ -812,7 +818,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
if ((args->depth > 0 || is_repository_shallow()) && !server_supports("shallow"))
die(_("Server does not support shallow clients"));
- if (args->depth > 0)
+ if (args->depth > 0 || args->deepen_since)
args->deepen = 1;
if (server_supports("multi_ack_detailed")) {
print_verbose(args, _("Server supports multi_ack_detailed"));
@@ -860,6 +866,10 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
print_verbose(args, _("Server version is %.*s"),
agent_len, agent_feature);
}
+ if (server_supports("deepen-since"))
+ deepen_since_ok = 1;
+ else if (args->deepen_since)
+ die(_("Server does not support --shallow-since"));
if (everything_local(args, &ref, sought, nr_sought)) {
packet_flush(fd[1]);
diff --git a/fetch-pack.h b/fetch-pack.h
index 4d0adb0..f7eadb2 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -10,6 +10,7 @@ struct fetch_pack_args {
const char *uploadpack;
int unpacklimit;
int depth;
+ const char *deepen_since;
unsigned quiet:1;
unsigned keep_pack:1;
unsigned lock_pack:1;
diff --git a/remote-curl.c b/remote-curl.c
index 4289c20..ffa4faa 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -20,6 +20,7 @@ static struct strbuf url = STRBUF_INIT;
struct options {
int verbosity;
unsigned long depth;
+ char *deepen_since;
unsigned progress : 1,
check_self_contained_and_connected : 1,
cloning : 1,
@@ -60,6 +61,10 @@ static int set_option(const char *name, const char *value)
options.depth = v;
return 0;
}
+ else if (!strcmp(name, "deepen-since")) {
+ options.deepen_since = xstrdup(value);
+ return 0;
+ }
else if (!strcmp(name, "followtags")) {
if (!strcmp(value, "true"))
options.followtags = 1;
@@ -699,8 +704,8 @@ static int fetch_dumb(int nr_heads, struct ref **to_fetch)
char **targets = xmalloc(nr_heads * sizeof(char*));
int ret, i;
- if (options.depth)
- die("dumb http transport does not support --depth");
+ if (options.depth || options.deepen_since)
+ die("dumb http transport does not support shallow capabilities");
for (i = 0; i < nr_heads; i++)
targets[i] = xstrdup(oid_to_hex(&to_fetch[i]->old_oid));
@@ -749,6 +754,8 @@ static int fetch_git(struct discovery *heads,
argv_array_push(&args, "--no-progress");
if (options.depth)
argv_array_pushf(&args, "--depth=%lu", options.depth);
+ if (options.deepen_since)
+ argv_array_pushf(&args, "--shallow-since=%s", options.deepen_since);
argv_array_push(&args, url.buf);
for (i = 0; i < nr_heads; i++) {
diff --git a/transport.c b/transport.c
index c92f8ae..f04a302 100644
--- a/transport.c
+++ b/transport.c
@@ -151,6 +151,9 @@ static int set_git_option(struct git_transport_options *opts,
die("transport: invalid depth option '%s'", value);
}
return 0;
+ } else if (!strcmp(name, TRANS_OPT_DEEPEN_SINCE)) {
+ opts->deepen_since = value;
+ return 0;
}
return 1;
}
@@ -205,6 +208,7 @@ static int fetch_refs_via_pack(struct transport *transport,
args.quiet = (transport->verbose < 0);
args.no_progress = !transport->progress;
args.depth = data->options.depth;
+ args.deepen_since = data->options.deepen_since;
args.check_self_contained_and_connected =
data->options.check_self_contained_and_connected;
args.cloning = transport->cloning;
diff --git a/transport.h b/transport.h
index 8ebaaf2..9c10a44 100644
--- a/transport.h
+++ b/transport.h
@@ -13,6 +13,7 @@ struct git_transport_options {
unsigned self_contained_and_connected : 1;
unsigned update_shallow : 1;
int depth;
+ const char *deepen_since;
const char *uploadpack;
const char *receivepack;
struct push_cas_option *cas;
@@ -171,6 +172,9 @@ int transport_restrict_protocols(void);
/* Limit the depth of the fetch if not null */
#define TRANS_OPT_DEPTH "depth"
+/* Limit the depth of the fetch based on time if not null */
+#define TRANS_OPT_DEEPEN_SINCE "deepen-since"
+
/* Aggressively fetch annotated tags if possible */
#define TRANS_OPT_FOLLOWTAGS "followtags"
--
2.8.0.rc0.210.gd302cd2
--
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