* [PATCHv21 01/10] submodule-config: keep update strategy around
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 02/10] submodule-config: drop check against NULL Stefan Beller
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
Currently submodule.<name>.update is only handled by git-submodule.sh.
C code will start to need to make use of that value as more of the
functionality of git-submodule.sh moves into library code in C.
Add the update field to 'struct submodule' and populate it so it can
be read as sm->update or from sm->update_command.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
submodule-config.c | 13 +++++++++++++
submodule-config.h | 2 ++
submodule.c | 21 +++++++++++++++++++++
submodule.h | 16 ++++++++++++++++
4 files changed, 52 insertions(+)
diff --git a/submodule-config.c b/submodule-config.c
index afe0ea8..a5cd2ee 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -59,6 +59,7 @@ static void free_one_config(struct submodule_entry *entry)
{
free((void *) entry->config->path);
free((void *) entry->config->name);
+ free((void *) entry->config->update_strategy.command);
free(entry->config);
}
@@ -194,6 +195,8 @@ static struct submodule *lookup_or_create_by_name(struct submodule_cache *cache,
submodule->path = NULL;
submodule->url = NULL;
+ submodule->update_strategy.type = SM_UPDATE_UNSPECIFIED;
+ submodule->update_strategy.command = NULL;
submodule->fetch_recurse = RECURSE_SUBMODULES_NONE;
submodule->ignore = NULL;
@@ -311,6 +314,16 @@ static int parse_config(const char *var, const char *value, void *data)
free((void *) submodule->url);
submodule->url = xstrdup(value);
}
+ } else if (!strcmp(item.buf, "update")) {
+ if (!value)
+ ret = config_error_nonbool(var);
+ else if (!me->overwrite &&
+ submodule->update_strategy.type != SM_UPDATE_UNSPECIFIED)
+ warn_multiple_config(me->commit_sha1, submodule->name,
+ "update");
+ else if (parse_submodule_update_strategy(value,
+ &submodule->update_strategy) < 0)
+ die(_("invalid value for %s"), var);
}
strbuf_release(&name);
diff --git a/submodule-config.h b/submodule-config.h
index 9061e4e..092ebfc 100644
--- a/submodule-config.h
+++ b/submodule-config.h
@@ -2,6 +2,7 @@
#define SUBMODULE_CONFIG_CACHE_H
#include "hashmap.h"
+#include "submodule.h"
#include "strbuf.h"
/*
@@ -14,6 +15,7 @@ struct submodule {
const char *url;
int fetch_recurse;
const char *ignore;
+ struct submodule_update_strategy update_strategy;
/* the sha1 blob id of the responsible .gitmodules file */
unsigned char gitmodules_sha1[20];
};
diff --git a/submodule.c b/submodule.c
index 916fc84..c3a1300 100644
--- a/submodule.c
+++ b/submodule.c
@@ -210,6 +210,27 @@ void gitmodules_config(void)
}
}
+int parse_submodule_update_strategy(const char *value,
+ struct submodule_update_strategy *dst)
+{
+ free((void*)dst->command);
+ dst->command = NULL;
+ if (!strcmp(value, "none"))
+ dst->type = SM_UPDATE_NONE;
+ else if (!strcmp(value, "checkout"))
+ dst->type = SM_UPDATE_CHECKOUT;
+ else if (!strcmp(value, "rebase"))
+ dst->type = SM_UPDATE_REBASE;
+ else if (!strcmp(value, "merge"))
+ dst->type = SM_UPDATE_MERGE;
+ else if (skip_prefix(value, "!", &value)) {
+ dst->type = SM_UPDATE_COMMAND;
+ dst->command = xstrdup(value);
+ } else
+ return -1;
+ return 0;
+}
+
void handle_ignore_submodules_arg(struct diff_options *diffopt,
const char *arg)
{
diff --git a/submodule.h b/submodule.h
index cbc0003..3464500 100644
--- a/submodule.h
+++ b/submodule.h
@@ -13,6 +13,20 @@ enum {
RECURSE_SUBMODULES_ON = 2
};
+enum submodule_update_type {
+ SM_UPDATE_UNSPECIFIED = 0,
+ SM_UPDATE_CHECKOUT,
+ SM_UPDATE_REBASE,
+ SM_UPDATE_MERGE,
+ SM_UPDATE_NONE,
+ SM_UPDATE_COMMAND
+};
+
+struct submodule_update_strategy {
+ enum submodule_update_type type;
+ const char *command;
+};
+
int is_staging_gitmodules_ok(void);
int update_path_in_gitmodules(const char *oldpath, const char *newpath);
int remove_path_from_gitmodules(const char *path);
@@ -21,6 +35,8 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
const char *path);
int submodule_config(const char *var, const char *value, void *cb);
void gitmodules_config(void);
+int parse_submodule_update_strategy(const char *value,
+ struct submodule_update_strategy *dst);
void handle_ignore_submodules_arg(struct diff_options *diffopt, const char *);
void show_submodule_summary(FILE *f, const char *path,
const char *line_prefix,
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 02/10] submodule-config: drop check against NULL
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
2016-03-01 2:07 ` [PATCHv21 01/10] submodule-config: keep update strategy around Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 03/10] fetching submodules: respect `submodule.fetchJobs` config option Stefan Beller
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
Adhere to the common coding style of Git and not check explicitly
for NULL throughout the file. There are still other occurrences in the
code base but that is usually inside of conditions with side effects.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
submodule-config.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/submodule-config.c b/submodule-config.c
index a5cd2ee..9fa2269 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -267,7 +267,7 @@ static int parse_config(const char *var, const char *value, void *data)
if (!strcmp(item.buf, "path")) {
if (!value)
ret = config_error_nonbool(var);
- else if (!me->overwrite && submodule->path != NULL)
+ else if (!me->overwrite && submodule->path)
warn_multiple_config(me->commit_sha1, submodule->name,
"path");
else {
@@ -291,7 +291,7 @@ static int parse_config(const char *var, const char *value, void *data)
} else if (!strcmp(item.buf, "ignore")) {
if (!value)
ret = config_error_nonbool(var);
- else if (!me->overwrite && submodule->ignore != NULL)
+ else if (!me->overwrite && submodule->ignore)
warn_multiple_config(me->commit_sha1, submodule->name,
"ignore");
else if (strcmp(value, "untracked") &&
@@ -307,7 +307,7 @@ static int parse_config(const char *var, const char *value, void *data)
} else if (!strcmp(item.buf, "url")) {
if (!value) {
ret = config_error_nonbool(var);
- } else if (!me->overwrite && submodule->url != NULL) {
+ } else if (!me->overwrite && submodule->url) {
warn_multiple_config(me->commit_sha1, submodule->name,
"url");
} else {
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 03/10] fetching submodules: respect `submodule.fetchJobs` config option
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
2016-03-01 2:07 ` [PATCHv21 01/10] submodule-config: keep update strategy around Stefan Beller
2016-03-01 2:07 ` [PATCHv21 02/10] submodule-config: drop check against NULL Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 04/10] submodule update: direct error message to stderr Stefan Beller
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
This allows to configure fetching and updating in parallel
without having the command line option.
This moved the responsibility to determine how many parallel processes
to start from builtin/fetch to submodule.c as we need a way to communicate
"The user did not specify the number of parallel processes in the command
line options" in the builtin fetch. The submodule code takes care of
the precedence (CLI > config > default).
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
Documentation/config.txt | 6 ++++++
builtin/fetch.c | 2 +-
submodule.c | 16 +++++++++++++++-
submodule.h | 2 ++
t/t5526-fetch-submodules.sh | 14 ++++++++++++++
5 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 2d06b11..3b02732 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2646,6 +2646,12 @@ submodule.<name>.ignore::
"--ignore-submodules" option. The 'git submodule' commands are not
affected by this setting.
+submodule.fetchJobs::
+ Specifies how many submodules are fetched/cloned at the same time.
+ A positive integer allows up to that number of submodules fetched
+ in parallel. A value of 0 will give some reasonable default.
+ If unset, it defaults to 1.
+
tag.sort::
This variable controls the sort ordering of tags when displayed by
linkgit:git-tag[1]. Without the "--sort=<value>" option provided, the
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 586840d..5aa1c2d 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -37,7 +37,7 @@ 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 max_children = 1;
+static int max_children = -1;
static const char *depth;
static const char *upload_pack;
static struct strbuf default_rla = STRBUF_INIT;
diff --git a/submodule.c b/submodule.c
index c3a1300..4bd14de 100644
--- a/submodule.c
+++ b/submodule.c
@@ -15,6 +15,7 @@
#include "thread-utils.h"
static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
+static int parallel_jobs = 1;
static struct string_list changed_submodule_paths;
static int initialized_fetch_ref_tips;
static struct sha1_array ref_tips_before_fetch;
@@ -169,7 +170,12 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
int submodule_config(const char *var, const char *value, void *cb)
{
- if (starts_with(var, "submodule."))
+ if (!strcmp(var, "submodule.fetchjobs")) {
+ parallel_jobs = git_config_int(var, value);
+ if (parallel_jobs < 0)
+ die(_("negative values not allowed for submodule.fetchJobs"));
+ return 0;
+ } else if (starts_with(var, "submodule."))
return parse_submodule_config_option(var, value);
else if (!strcmp(var, "fetch.recursesubmodules")) {
config_fetch_recurse_submodules = parse_fetch_recurse_submodules_arg(var, value);
@@ -771,6 +777,9 @@ int fetch_populated_submodules(const struct argv_array *options,
argv_array_push(&spf.args, "--recurse-submodules-default");
/* default value, "--submodule-prefix" and its value are added later */
+ if (max_parallel_jobs < 0)
+ max_parallel_jobs = parallel_jobs;
+
calculate_changed_submodule_paths();
run_processes_parallel(max_parallel_jobs,
get_next_submodule,
@@ -1117,3 +1126,8 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
strbuf_release(&rel_path);
free((void *)real_work_tree);
}
+
+int parallel_submodules(void)
+{
+ return parallel_jobs;
+}
diff --git a/submodule.h b/submodule.h
index 3464500..3166608 100644
--- a/submodule.h
+++ b/submodule.h
@@ -26,6 +26,7 @@ struct submodule_update_strategy {
enum submodule_update_type type;
const char *command;
};
+#define SUBMODULE_UPDATE_STRATEGY_INIT {SM_UPDATE_UNSPECIFIED, NULL}
int is_staging_gitmodules_ok(void);
int update_path_in_gitmodules(const char *oldpath, const char *newpath);
@@ -57,5 +58,6 @@ int find_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_nam
struct string_list *needs_pushing);
int push_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name);
void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
+int parallel_submodules(void);
#endif
diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
index 1241146..954d0e4 100755
--- a/t/t5526-fetch-submodules.sh
+++ b/t/t5526-fetch-submodules.sh
@@ -471,4 +471,18 @@ test_expect_success "don't fetch submodule when newly recorded commits are alrea
test_i18ncmp expect.err actual.err
'
+test_expect_success 'fetching submodules respects parallel settings' '
+ git config fetch.recurseSubmodules true &&
+ (
+ cd downstream &&
+ GIT_TRACE=$(pwd)/trace.out git fetch --jobs 7 &&
+ grep "7 tasks" trace.out &&
+ git config submodule.fetchJobs 8 &&
+ GIT_TRACE=$(pwd)/trace.out git fetch &&
+ grep "8 tasks" trace.out &&
+ GIT_TRACE=$(pwd)/trace.out git fetch --jobs 9 &&
+ grep "9 tasks" trace.out
+ )
+'
+
test_done
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 04/10] submodule update: direct error message to stderr
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (2 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 03/10] fetching submodules: respect `submodule.fetchJobs` config option Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 05/10] run_processes_parallel: treat output of children as byte array Stefan Beller
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
Reroute the error message for specified but initialized submodules
to stderr instead of stdout.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
git-submodule.sh | 4 ++--
t/t7400-submodule-basic.sh | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/git-submodule.sh b/git-submodule.sh
index 9bc5c5f..9ee86d4 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -693,7 +693,7 @@ cmd_update()
if test "$update_module" = "none"
then
- echo "Skipping submodule '$displaypath'"
+ echo >&2 "Skipping submodule '$displaypath'"
continue
fi
@@ -702,7 +702,7 @@ cmd_update()
# Only mention uninitialized submodules when its
# path have been specified
test "$#" != "0" &&
- say "$(eval_gettext "Submodule path '\$displaypath' not initialized
+ say >&2 "$(eval_gettext "Submodule path '\$displaypath' not initialized
Maybe you want to use 'update --init'?")"
continue
fi
diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 540771c..5991e3c 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -462,7 +462,7 @@ test_expect_success 'update --init' '
git config --remove-section submodule.example &&
test_must_fail git config submodule.example.url &&
- git submodule update init > update.out &&
+ git submodule update init 2> update.out &&
cat update.out &&
test_i18ngrep "not initialized" update.out &&
test_must_fail git rev-parse --resolve-git-dir init/.git &&
@@ -480,7 +480,7 @@ test_expect_success 'update --init from subdirectory' '
mkdir -p sub &&
(
cd sub &&
- git submodule update ../init >update.out &&
+ git submodule update ../init 2>update.out &&
cat update.out &&
test_i18ngrep "not initialized" update.out &&
test_must_fail git rev-parse --resolve-git-dir ../init/.git &&
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 05/10] run_processes_parallel: treat output of children as byte array
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (3 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 04/10] submodule update: direct error message to stderr Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 06/10] run_processes_parallel: rename parameters for the callbacks Stefan Beller
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
We do not want the output to be interrupted by a NUL byte, so we
cannot use raw fputs. Introduce strbuf_write to avoid having long
arguments in run-command.c.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
run-command.c | 8 ++++----
strbuf.c | 6 ++++++
strbuf.h | 6 ++++++
3 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/run-command.c b/run-command.c
index 8e3ad07..bdda940 100644
--- a/run-command.c
+++ b/run-command.c
@@ -994,7 +994,7 @@ static void pp_cleanup(struct parallel_processes *pp)
* When get_next_task added messages to the buffer in its last
* iteration, the buffered output is non empty.
*/
- fputs(pp->buffered_output.buf, stderr);
+ strbuf_write(&pp->buffered_output, stderr);
strbuf_release(&pp->buffered_output);
sigchain_pop_common();
@@ -1079,7 +1079,7 @@ static void pp_output(struct parallel_processes *pp)
int i = pp->output_owner;
if (pp->children[i].state == GIT_CP_WORKING &&
pp->children[i].err.len) {
- fputs(pp->children[i].err.buf, stderr);
+ strbuf_write(&pp->children[i].err, stderr);
strbuf_reset(&pp->children[i].err);
}
}
@@ -1117,11 +1117,11 @@ static int pp_collect_finished(struct parallel_processes *pp)
strbuf_addbuf(&pp->buffered_output, &pp->children[i].err);
strbuf_reset(&pp->children[i].err);
} else {
- fputs(pp->children[i].err.buf, stderr);
+ strbuf_write(&pp->children[i].err, stderr);
strbuf_reset(&pp->children[i].err);
/* Output all other finished child processes */
- fputs(pp->buffered_output.buf, stderr);
+ strbuf_write(&pp->buffered_output, stderr);
strbuf_reset(&pp->buffered_output);
/*
diff --git a/strbuf.c b/strbuf.c
index 38686ff..5f6da82 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -395,6 +395,12 @@ ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint)
return cnt;
}
+ssize_t strbuf_write(struct strbuf *sb, FILE *f)
+{
+ return sb->len ? fwrite(sb->buf, 1, sb->len, f) : 0;
+}
+
+
#define STRBUF_MAXLINK (2*PATH_MAX)
int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
diff --git a/strbuf.h b/strbuf.h
index 2bf90e7..d4f2aa1 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -387,6 +387,12 @@ extern ssize_t strbuf_read_file(struct strbuf *sb, const char *path, size_t hint
extern int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint);
/**
+ * Write the whole content of the strbuf to the stream not stopping at
+ * NUL bytes.
+ */
+extern ssize_t strbuf_write(struct strbuf *sb, FILE *stream);
+
+/**
* Read a line from a FILE *, overwriting the existing contents
* of the strbuf. The second argument specifies the line
* terminator character, typically `'\n'`.
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 06/10] run_processes_parallel: rename parameters for the callbacks
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (4 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 05/10] run_processes_parallel: treat output of children as byte array Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 07/10] git submodule update: have a dedicated helper for cloning Stefan Beller
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
The refs code has a similar pattern of passing around 'struct strbuf *err',
which is strictly used for error reporting. This is not the case here,
as the strbuf is used to accumulate all the output (whether it is error
or not) for the user. Rename it to 'out'.
Suggested-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
---
run-command.c | 4 ++--
run-command.h | 10 +++++-----
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/run-command.c b/run-command.c
index bdda940..62c6721 100644
--- a/run-command.c
+++ b/run-command.c
@@ -902,7 +902,7 @@ struct parallel_processes {
struct strbuf buffered_output; /* of finished children */
};
-static int default_start_failure(struct strbuf *err,
+static int default_start_failure(struct strbuf *out,
void *pp_cb,
void *pp_task_cb)
{
@@ -910,7 +910,7 @@ static int default_start_failure(struct strbuf *err,
}
static int default_task_finished(int result,
- struct strbuf *err,
+ struct strbuf *out,
void *pp_cb,
void *pp_task_cb)
{
diff --git a/run-command.h b/run-command.h
index 05dec41..05cde5f 100644
--- a/run-command.h
+++ b/run-command.h
@@ -139,7 +139,7 @@ int in_async(void);
* return the negative signal number.
*/
typedef int (*get_next_task_fn)(struct child_process *cp,
- struct strbuf *err,
+ struct strbuf *out,
void *pp_cb,
void **pp_task_cb);
@@ -148,7 +148,7 @@ typedef int (*get_next_task_fn)(struct child_process *cp,
* a new process.
*
* You must not write to stdout or stderr in this function. Add your
- * message to the strbuf err instead, which will be printed without
+ * message to the strbuf out instead, which will be printed without
* messing up the output of the other parallel processes.
*
* pp_cb is the callback cookie as passed into run_processes_parallel,
@@ -158,7 +158,7 @@ typedef int (*get_next_task_fn)(struct child_process *cp,
* To send a signal to other child processes for abortion, return
* the negative signal number.
*/
-typedef int (*start_failure_fn)(struct strbuf *err,
+typedef int (*start_failure_fn)(struct strbuf *out,
void *pp_cb,
void *pp_task_cb);
@@ -166,7 +166,7 @@ typedef int (*start_failure_fn)(struct strbuf *err,
* This callback is called on every child process that finished processing.
*
* You must not write to stdout or stderr in this function. Add your
- * message to the strbuf err instead, which will be printed without
+ * message to the strbuf out instead, which will be printed without
* messing up the output of the other parallel processes.
*
* pp_cb is the callback cookie as passed into run_processes_parallel,
@@ -177,7 +177,7 @@ typedef int (*start_failure_fn)(struct strbuf *err,
* the negative signal number.
*/
typedef int (*task_finished_fn)(int result,
- struct strbuf *err,
+ struct strbuf *out,
void *pp_cb,
void *pp_task_cb);
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 07/10] git submodule update: have a dedicated helper for cloning
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (5 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 06/10] run_processes_parallel: rename parameters for the callbacks Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 08/10] submodule helper: remove double 'fatal: ' prefix Stefan Beller
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
This introduces a new helper function in git submodule--helper
which takes care of cloning all submodules, which we want to
parallelize eventually.
Some tests (such as empty URL, update_mode=none) are required in the
helper to make the decision for cloning. These checks have been
moved into the C function as well (no need to repeat them in the
shell script).
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
builtin/submodule--helper.c | 246 ++++++++++++++++++++++++++++++++++++++++++++
git-submodule.sh | 47 +++------
2 files changed, 259 insertions(+), 34 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index f4c3eff..fd2b168 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -255,6 +255,251 @@ static int module_clone(int argc, const char **argv, const char *prefix)
return 0;
}
+struct submodule_update_clone {
+ /* index into 'list', the list of submodules to look into for cloning */
+ int current;
+ struct module_list list;
+ unsigned warn_if_uninitialized : 1;
+
+ /* update parameter passed via commandline */
+ struct submodule_update_strategy update;
+
+ /* configuration parameters which are passed on to the children */
+ int quiet;
+ const char *reference;
+ const char *depth;
+ const char *recursive_prefix;
+ const char *prefix;
+
+ /* Machine-readable status lines to be consumed by git-submodule.sh */
+ struct string_list projectlines;
+
+ /* If we want to stop as fast as possible and return an error */
+ unsigned quickstop : 1;
+};
+#define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
+ SUBMODULE_UPDATE_STRATEGY_INIT, 0, NULL, NULL, NULL, NULL, \
+ STRING_LIST_INIT_DUP, 0}
+
+/**
+ * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
+ * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise.
+ */
+static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
+ struct child_process *child,
+ struct submodule_update_clone *suc,
+ struct strbuf *out)
+{
+ const struct submodule *sub = NULL;
+ struct strbuf displaypath_sb = STRBUF_INIT;
+ struct strbuf sb = STRBUF_INIT;
+ const char *displaypath = NULL;
+ char *url = NULL;
+ int needs_cloning = 0;
+
+ if (ce_stage(ce)) {
+ if (suc->recursive_prefix)
+ strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
+ else
+ strbuf_addf(&sb, "%s", ce->name);
+ strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
+ strbuf_addch(out, '\n');
+ goto cleanup;
+ }
+
+ sub = submodule_from_path(null_sha1, ce->name);
+
+ if (suc->recursive_prefix)
+ displaypath = relative_path(suc->recursive_prefix,
+ ce->name, &displaypath_sb);
+ else
+ displaypath = ce->name;
+
+ if (suc->update.type == SM_UPDATE_NONE
+ || (suc->update.type == SM_UPDATE_UNSPECIFIED
+ && sub->update_strategy.type == SM_UPDATE_NONE)) {
+ strbuf_addf(out, _("Skipping submodule '%s'"), displaypath);
+ strbuf_addch(out, '\n');
+ goto cleanup;
+ }
+
+ /*
+ * Looking up the url in .git/config.
+ * We must not fall back to .gitmodules as we only want
+ * to process configured submodules.
+ */
+ strbuf_reset(&sb);
+ strbuf_addf(&sb, "submodule.%s.url", sub->name);
+ git_config_get_string(sb.buf, &url);
+ if (!url) {
+ /*
+ * Only mention uninitialized submodules when their
+ * path have been specified
+ */
+ if (suc->warn_if_uninitialized) {
+ strbuf_addf(out,
+ _("Submodule path '%s' not initialized"),
+ displaypath);
+ strbuf_addch(out, '\n');
+ strbuf_addstr(out,
+ _("Maybe you want to use 'update --init'?"));
+ strbuf_addch(out, '\n');
+ }
+ goto cleanup;
+ }
+
+ strbuf_reset(&sb);
+ strbuf_addf(&sb, "%s/.git", ce->name);
+ needs_cloning = !file_exists(sb.buf);
+
+ strbuf_reset(&sb);
+ strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode,
+ sha1_to_hex(ce->sha1), ce_stage(ce),
+ needs_cloning, ce->name);
+ string_list_append(&suc->projectlines, sb.buf);
+
+ if (!needs_cloning)
+ goto cleanup;
+
+ child->git_cmd = 1;
+ child->no_stdin = 1;
+ child->stdout_to_stderr = 1;
+ child->err = -1;
+ argv_array_push(&child->args, "submodule--helper");
+ argv_array_push(&child->args, "clone");
+ if (suc->quiet)
+ argv_array_push(&child->args, "--quiet");
+ if (suc->prefix)
+ argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
+ argv_array_pushl(&child->args, "--path", sub->path, NULL);
+ argv_array_pushl(&child->args, "--name", sub->name, NULL);
+ argv_array_pushl(&child->args, "--url", url, NULL);
+ if (suc->reference)
+ argv_array_push(&child->args, suc->reference);
+ if (suc->depth)
+ argv_array_push(&child->args, suc->depth);
+
+cleanup:
+ free(url);
+ strbuf_reset(&displaypath_sb);
+ strbuf_reset(&sb);
+
+ return needs_cloning;
+}
+
+static int update_clone_get_next_task(struct child_process *child,
+ struct strbuf *err,
+ void *suc_cb,
+ void **void_task_cb)
+{
+ struct submodule_update_clone *suc = suc_cb;
+
+ for (; suc->current < suc->list.nr; suc->current++) {
+ const struct cache_entry *ce = suc->list.entries[suc->current];
+ if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
+ suc->current++;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int update_clone_start_failure(struct strbuf *err,
+ void *suc_cb,
+ void *void_task_cb)
+{
+ struct submodule_update_clone *suc = suc_cb;
+ suc->quickstop = 1;
+ return 1;
+}
+
+static int update_clone_task_finished(int result,
+ struct strbuf *err,
+ void *suc_cb,
+ void *void_task_cb)
+{
+ struct submodule_update_clone *suc = suc_cb;
+
+ if (!result)
+ return 0;
+
+ suc->quickstop = 1;
+ return 1;
+}
+
+static int update_clone(int argc, const char **argv, const char *prefix)
+{
+ const char *update = NULL;
+ struct string_list_item *item;
+ struct pathspec pathspec;
+ struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
+
+ struct option module_update_clone_options[] = {
+ OPT_STRING(0, "prefix", &prefix,
+ N_("path"),
+ N_("path into the working tree")),
+ OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix,
+ N_("path"),
+ N_("path into the working tree, across nested "
+ "submodule boundaries")),
+ OPT_STRING(0, "update", &update,
+ N_("string"),
+ N_("rebase, merge, checkout or none")),
+ OPT_STRING(0, "reference", &suc.reference, N_("repo"),
+ N_("reference repository")),
+ OPT_STRING(0, "depth", &suc.depth, "<depth>",
+ N_("Create a shallow clone truncated to the "
+ "specified number of revisions")),
+ OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
+ OPT_END()
+ };
+
+ const char *const git_submodule_helper_usage[] = {
+ N_("git submodule--helper update_clone [--prefix=<path>] [<path>...]"),
+ NULL
+ };
+ suc.prefix = prefix;
+
+ argc = parse_options(argc, argv, prefix, module_update_clone_options,
+ git_submodule_helper_usage, 0);
+
+ if (update)
+ if (parse_submodule_update_strategy(update, &suc.update) < 0)
+ die(_("bad value for update parameter"));
+
+ if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0)
+ return 1;
+
+ if (pathspec.nr)
+ suc.warn_if_uninitialized = 1;
+
+ /* Overlay the parsed .gitmodules file with .git/config */
+ gitmodules_config();
+ git_config(submodule_config, NULL);
+
+ run_processes_parallel(1,
+ update_clone_get_next_task,
+ update_clone_start_failure,
+ update_clone_task_finished,
+ &suc);
+
+ /*
+ * We saved the output and put it out all at once now.
+ * That means:
+ * - the listener does not have to interleave their (checkout)
+ * work with our fetching. The writes involved in a
+ * checkout involve more straightforward sequential I/O.
+ * - the listener can avoid doing any work if fetching failed.
+ */
+ if (suc.quickstop)
+ return 1;
+
+ for_each_string_list_item(item, &suc.projectlines)
+ utf8_fprintf(stdout, "%s", item->string);
+
+ return 0;
+}
+
struct cmd_struct {
const char *cmd;
int (*fn)(int, const char **, const char *);
@@ -264,6 +509,7 @@ static struct cmd_struct commands[] = {
{"list", module_list},
{"name", module_name},
{"clone", module_clone},
+ {"update-clone", update_clone}
};
int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
diff --git a/git-submodule.sh b/git-submodule.sh
index 9ee86d4..a6a82d2 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -664,17 +664,20 @@ cmd_update()
cmd_init "--" "$@" || return
fi
- cloned_modules=
- git submodule--helper list --prefix "$wt_prefix" "$@" | {
+ {
+ git submodule--helper update-clone ${GIT_QUIET:+--quiet} \
+ ${wt_prefix:+--prefix "$wt_prefix"} \
+ ${prefix:+--recursive-prefix "$prefix"} \
+ ${update:+--update "$update"} \
+ ${reference:+--reference "$reference"} \
+ ${depth:+--depth "$depth"} \
+ "$@" || echo "#unmatched"
+ } | {
err=
- while read mode sha1 stage sm_path
+ while read mode sha1 stage just_cloned sm_path
do
die_if_unmatched "$mode"
- if test "$stage" = U
- then
- echo >&2 "Skipping unmerged submodule $prefix$sm_path"
- continue
- fi
+
name=$(git submodule--helper name "$sm_path") || exit
url=$(git config submodule."$name".url)
branch=$(get_submodule_config "$name" branch master)
@@ -691,27 +694,10 @@ cmd_update()
displaypath=$(relative_path "$prefix$sm_path")
- if test "$update_module" = "none"
- then
- echo >&2 "Skipping submodule '$displaypath'"
- continue
- fi
-
- if test -z "$url"
- then
- # Only mention uninitialized submodules when its
- # path have been specified
- test "$#" != "0" &&
- say >&2 "$(eval_gettext "Submodule path '\$displaypath' not initialized
-Maybe you want to use 'update --init'?")"
- continue
- fi
-
- if ! test -d "$sm_path"/.git && ! test -f "$sm_path"/.git
+ if test $just_cloned -eq 1
then
- git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$prefix" --path "$sm_path" --name "$name" --url "$url" "$reference" "$depth" || exit
- cloned_modules="$cloned_modules;$name"
subsha1=
+ update_module=checkout
else
subsha1=$(clear_local_git_env; cd "$sm_path" &&
git rev-parse --verify HEAD) ||
@@ -751,13 +737,6 @@ Maybe you want to use 'update --init'?")"
die "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'")"
fi
- # Is this something we just cloned?
- case ";$cloned_modules;" in
- *";$name;"*)
- # then there is no local change to integrate
- update_module=checkout ;;
- esac
-
must_die_on_failure=
case "$update_module" in
checkout)
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 08/10] submodule helper: remove double 'fatal: ' prefix
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (6 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 07/10] git submodule update: have a dedicated helper for cloning Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 09/10] submodule update: expose parallelism to the user Stefan Beller
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
The prefix is added by die(...), so we don't have to do it.
Signed-off-by: Stefan Beller <sbeller@google.com>
---
builtin/submodule--helper.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index fd2b168..9e8109e 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -516,13 +516,13 @@ int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
{
int i;
if (argc < 2)
- die(_("fatal: submodule--helper subcommand must be "
+ die(_("submodule--helper subcommand must be "
"called with a subcommand"));
for (i = 0; i < ARRAY_SIZE(commands); i++)
if (!strcmp(argv[1], commands[i].cmd))
return commands[i].fn(argc - 1, argv + 1, prefix);
- die(_("fatal: '%s' is not a valid submodule--helper "
+ die(_("'%s' is not a valid submodule--helper "
"subcommand"), argv[1]);
}
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 09/10] submodule update: expose parallelism to the user
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (7 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 08/10] submodule helper: remove double 'fatal: ' prefix Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 2:07 ` [PATCHv21 10/10] clone: allow an explicit argument for parallel submodule clones Stefan Beller
2016-03-01 22:36 ` [PATCHv21 00/10] Expose submodule parallelism to the user Junio C Hamano
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
Expose possible parallelism either via the "--jobs" CLI parameter or
the "submodule.fetchJobs" setting.
By having the variable initialized to -1, we make sure 0 can be passed
into the parallel processing machine, which will then pick as many parallel
workers as there are CPUs.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
Documentation/git-submodule.txt | 7 ++++++-
builtin/submodule--helper.c | 8 +++++++-
git-submodule.sh | 9 +++++++++
t/t7406-submodule-update.sh | 12 ++++++++++++
4 files changed, 34 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
index 1572f05..13adebf 100644
--- a/Documentation/git-submodule.txt
+++ b/Documentation/git-submodule.txt
@@ -16,7 +16,7 @@ SYNOPSIS
'git submodule' [--quiet] deinit [-f|--force] [--] <path>...
'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch]
[-f|--force] [--rebase|--merge] [--reference <repository>]
- [--depth <depth>] [--recursive] [--] [<path>...]
+ [--depth <depth>] [--recursive] [--jobs <n>] [--] [<path>...]
'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>]
[commit] [--] [<path>...]
'git submodule' [--quiet] foreach [--recursive] <command>
@@ -377,6 +377,11 @@ for linkgit:git-clone[1]'s `--reference` and `--shared` options carefully.
clone with a history truncated to the specified number of revisions.
See linkgit:git-clone[1]
+-j <n>::
+--jobs <n>::
+ This option is only valid for the update command.
+ Clone new submodules in parallel with as many jobs.
+ Defaults to the `submodule.fetchJobs` option.
<path>...::
Paths to submodule(s). When specified this will restrict the command
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 9e8109e..a484945 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -430,6 +430,7 @@ static int update_clone_task_finished(int result,
static int update_clone(int argc, const char **argv, const char *prefix)
{
const char *update = NULL;
+ int max_jobs = -1;
struct string_list_item *item;
struct pathspec pathspec;
struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
@@ -450,6 +451,8 @@ static int update_clone(int argc, const char **argv, const char *prefix)
OPT_STRING(0, "depth", &suc.depth, "<depth>",
N_("Create a shallow clone truncated to the "
"specified number of revisions")),
+ OPT_INTEGER('j', "jobs", &max_jobs,
+ N_("parallel jobs")),
OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
OPT_END()
};
@@ -477,7 +480,10 @@ static int update_clone(int argc, const char **argv, const char *prefix)
gitmodules_config();
git_config(submodule_config, NULL);
- run_processes_parallel(1,
+ if (max_jobs < 0)
+ max_jobs = parallel_submodules();
+
+ run_processes_parallel(max_jobs,
update_clone_get_next_task,
update_clone_start_failure,
update_clone_task_finished,
diff --git a/git-submodule.sh b/git-submodule.sh
index a6a82d2..86018ee 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -645,6 +645,14 @@ cmd_update()
--depth=*)
depth=$1
;;
+ -j|--jobs)
+ case "$2" in '') usage ;; esac
+ jobs="--jobs=$2"
+ shift
+ ;;
+ --jobs=*)
+ jobs=$1
+ ;;
--)
shift
break
@@ -671,6 +679,7 @@ cmd_update()
${update:+--update "$update"} \
${reference:+--reference "$reference"} \
${depth:+--depth "$depth"} \
+ ${jobs:+$jobs} \
"$@" || echo "#unmatched"
} | {
err=
diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index dda3929..7fd5142 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -774,4 +774,16 @@ test_expect_success 'submodule update --recursive drops module name before recur
test_i18ngrep "Submodule path .deeper/submodule/subsubmodule.: checked out" actual
)
'
+
+test_expect_success 'submodule update can be run in parallel' '
+ (cd super2 &&
+ GIT_TRACE=$(pwd)/trace.out git submodule update --jobs 7 &&
+ grep "7 tasks" trace.out &&
+ git config submodule.fetchJobs 8 &&
+ GIT_TRACE=$(pwd)/trace.out git submodule update &&
+ grep "8 tasks" trace.out &&
+ GIT_TRACE=$(pwd)/trace.out git submodule update --jobs 9 &&
+ grep "9 tasks" trace.out
+ )
+'
test_done
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCHv21 10/10] clone: allow an explicit argument for parallel submodule clones
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (8 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 09/10] submodule update: expose parallelism to the user Stefan Beller
@ 2016-03-01 2:07 ` Stefan Beller
2016-03-01 22:36 ` [PATCHv21 00/10] Expose submodule parallelism to the user Junio C Hamano
10 siblings, 0 replies; 12+ messages in thread
From: Stefan Beller @ 2016-03-01 2:07 UTC (permalink / raw)
To: gitster; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine,
Stefan Beller
Just pass it along to "git submodule update", which may pick reasonable
defaults if you don't specify an explicit number.
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
Documentation/git-clone.txt | 6 +++++-
builtin/clone.c | 19 +++++++++++++------
t/t7406-submodule-update.sh | 15 +++++++++++++++
3 files changed, 33 insertions(+), 7 deletions(-)
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index 6bf000d..6db7b6d 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -14,7 +14,7 @@ SYNOPSIS
[-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>]
[--dissociate] [--separate-git-dir <git dir>]
[--depth <depth>] [--[no-]single-branch]
- [--recursive | --recurse-submodules] [--] <repository>
+ [--recursive | --recurse-submodules] [--jobs <n>] [--] <repository>
[<directory>]
DESCRIPTION
@@ -221,6 +221,10 @@ objects from the source repository into a pack in the cloned repository.
The result is Git repository can be separated from working
tree.
+-j <n>::
+--jobs <n>::
+ The number of submodules fetched at the same time.
+ Defaults to the `submodule.fetchJobs` option.
<repository>::
The (possibly remote) repository to clone from. See the
diff --git a/builtin/clone.c b/builtin/clone.c
index a0b3cd9..b004fb4 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -50,6 +50,7 @@ static int option_progress = -1;
static struct string_list option_config;
static struct string_list option_reference;
static int option_dissociate;
+static int max_jobs = -1;
static struct option builtin_clone_options[] = {
OPT__VERBOSITY(&option_verbosity),
@@ -72,6 +73,8 @@ static struct option builtin_clone_options[] = {
N_("initialize submodules in the clone")),
OPT_BOOL(0, "recurse-submodules", &option_recursive,
N_("initialize submodules in the clone")),
+ OPT_INTEGER('j', "jobs", &max_jobs,
+ N_("number of submodules cloned in parallel")),
OPT_STRING(0, "template", &option_template, N_("template-directory"),
N_("directory from which templates will be used")),
OPT_STRING_LIST(0, "reference", &option_reference, N_("repo"),
@@ -95,10 +98,6 @@ static struct option builtin_clone_options[] = {
OPT_END()
};
-static const char *argv_submodule[] = {
- "submodule", "update", "--init", "--recursive", NULL
-};
-
static const char *get_repo_path_1(struct strbuf *path, int *is_bundle)
{
static char *suffix[] = { "/.git", "", ".git/.git", ".git" };
@@ -724,8 +723,16 @@ static int checkout(void)
err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1),
sha1_to_hex(sha1), "1", NULL);
- if (!err && option_recursive)
- err = run_command_v_opt(argv_submodule, RUN_GIT_CMD);
+ if (!err && option_recursive) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL);
+
+ if (max_jobs != -1)
+ argv_array_pushf(&args, "--jobs=%d", max_jobs);
+
+ err = run_command_v_opt(args.argv, RUN_GIT_CMD);
+ argv_array_clear(&args);
+ }
return err;
}
diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index 7fd5142..090891e 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -786,4 +786,19 @@ test_expect_success 'submodule update can be run in parallel' '
grep "9 tasks" trace.out
)
'
+
+test_expect_success 'git clone passes the parallel jobs config on to submodules' '
+ test_when_finished "rm -rf super4" &&
+ GIT_TRACE=$(pwd)/trace.out git clone --recurse-submodules --jobs 7 . super4 &&
+ grep "7 tasks" trace.out &&
+ rm -rf super4 &&
+ git config --global submodule.fetchJobs 8 &&
+ GIT_TRACE=$(pwd)/trace.out git clone --recurse-submodules . super4 &&
+ grep "8 tasks" trace.out &&
+ rm -rf super4 &&
+ GIT_TRACE=$(pwd)/trace.out git clone --recurse-submodules --jobs 9 . super4 &&
+ grep "9 tasks" trace.out &&
+ rm -rf super4
+'
+
test_done
--
2.8.0.rc0.1.g68b4e3f
^ permalink raw reply related [flat|nested] 12+ messages in thread* Re: [PATCHv21 00/10] Expose submodule parallelism to the user
2016-03-01 2:07 [PATCHv21 00/10] Expose submodule parallelism to the user Stefan Beller
` (9 preceding siblings ...)
2016-03-01 2:07 ` [PATCHv21 10/10] clone: allow an explicit argument for parallel submodule clones Stefan Beller
@ 2016-03-01 22:36 ` Junio C Hamano
10 siblings, 0 replies; 12+ messages in thread
From: Junio C Hamano @ 2016-03-01 22:36 UTC (permalink / raw)
To: Stefan Beller; +Cc: git, jrnieder, pclouds, Jens.Lehmann, peff, sunshine
Stefan Beller <sbeller@google.com> writes:
> * evicted patches:
> run-command: expose default_{start_failure, task_finished}
> run_processes_parallel: correctly terminate callbacks with an LF
> * rebased on top of origin/sb/no-child-process-access-in-run-parallel-callbacks
> * followed Jonathans advice on improving the situation for translators.
Queued on top of the fix to parallel-fetch topic, and the
two patches for submodule-init rebased on top of it.
Thanks.
^ permalink raw reply [flat|nested] 12+ messages in thread