This makes it possible to fetch many commits (refs) at once, greatly
speeding up cg-clone.
Signed-off-by: Petr Baudis <pasky@xxxxxxx>
---
Documentation/git-local-fetch.txt | 6 ++++++
fetch.c | 40 +++++++++++++++++++++++++++++++++++++
fetch.h | 6 ++++++
local-fetch.c | 32 ++++++++++++++++++++----------
4 files changed, 74 insertions(+), 10 deletions(-)
diff --git a/Documentation/git-local-fetch.txt b/Documentation/git-local-fetch.txt
index 87abec1..bd19820 100644
--- a/Documentation/git-local-fetch.txt
+++ b/Documentation/git-local-fetch.txt
@@ -29,6 +29,12 @@ OPTIONS
Writes the commit-id into the filename under $GIT_DIR/refs/<filename> on
the local end after the transfer is complete.
+--stdin::
+ Instead of a commit id on the commandline (which is not expected in this
+ case), 'git-local-fetch' excepts lines on stdin in the format
+
+ <commit-id>['\t'<filename-as-in--w>]
+
Author
------
Written by Junio C Hamano <junkio@xxxxxxx>
diff --git a/fetch.c b/fetch.c
index 281df61..2151c7b 100644
--- a/fetch.c
+++ b/fetch.c
@@ -7,6 +7,7 @@ #include "tree-walk.h"
#include "tag.h"
#include "blob.h"
#include "refs.h"
+#include "strbuf.h"
int get_tree = 0;
int get_history = 0;
@@ -210,6 +211,45 @@ static int mark_complete(const char *pat
return 0;
}
+int pull_targets_stdin(char ***target, const char ***write_ref)
+{
+ int targets = 0, targets_alloc = 0;
+ struct strbuf buf;
+ *target = NULL; *write_ref = NULL;
+ strbuf_init(&buf);
+ while (1) {
+ char *rf_one = NULL;
+ char *tg_one;
+
+ read_line(&buf, stdin, '\n');
+ if (buf.eof)
+ break;
+ tg_one = buf.buf;
+ rf_one = strchr(tg_one, '\t');
+ if (rf_one)
+ *rf_one++ = 0;
+
+ if (targets >= targets_alloc) {
+ targets_alloc = targets_alloc ? targets_alloc * 2 : 64;
+ *target = xrealloc(*target, targets_alloc * sizeof(**target));
+ *write_ref = xrealloc(*write_ref, targets_alloc * sizeof(**write_ref));
+ }
+ (*target)[targets] = strdup(tg_one);
+ (*write_ref)[targets] = rf_one ? strdup(rf_one) : NULL;
+ targets++;
+ }
+ return targets;
+}
+
+void pull_targets_free(int targets, char **target, const char **write_ref)
+{
+ while (targets--) {
+ free(target[targets]);
+ if (write_ref[targets])
+ free((char *) write_ref[targets]);
+ }
+}
+
int pull(int targets, char **target, const char **write_ref,
const char *write_ref_log_details)
{
diff --git a/fetch.h b/fetch.h
index 75e48af..be48c6f 100644
--- a/fetch.h
+++ b/fetch.h
@@ -40,6 +40,12 @@ extern int get_recover;
/* Report what we got under get_verbosely */
extern void pull_say(const char *, const char *);
+/* Load pull targets from stdin */
+extern int pull_targets_stdin(char ***target, const char ***write_ref);
+
+/* Free up loaded targets */
+extern void pull_targets_free(int targets, char **target, const char **write_ref);
+
/* If write_ref is set, the ref filename to write the target value to. */
/* If write_ref_log_details is set, additional text will appear in the ref log. */
extern int pull(int targets, char **target, const char **write_ref,
diff --git a/local-fetch.c b/local-fetch.c
index eb19f1a..84b68a6 100644
--- a/local-fetch.c
+++ b/local-fetch.c
@@ -8,8 +8,9 @@ #include "fetch.h"
static int use_link = 0;
static int use_symlink = 0;
static int use_filecopy = 1;
+static int commits_on_stdin = 0;
-static char *path; /* "Remote" git repository */
+static const char *path; /* "Remote" git repository */
void prefetch(unsigned char *sha1)
{
@@ -194,7 +195,7 @@ int fetch_ref(char *ref, unsigned char *
}
static const char local_pull_usage[] =
-"git-local-fetch [-c] [-t] [-a] [-v] [-w filename] [--recover] [-l] [-s] [-n] commit-id path";
+"git-local-fetch [-c] [-t] [-a] [-v] [-w filename] [--recover] [-l] [-s] [-n] [--stdin] commit-id path";
/*
* By default we only use file copy.
@@ -202,10 +203,11 @@ static const char local_pull_usage[] =
* If -s is specified, then a symlink is attempted.
* If -n is _not_ specified, then a regular file-to-file copy is done.
*/
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
{
- const char *write_ref = NULL;
- char *commit_id;
+ int commits;
+ const char **write_ref = NULL;
+ char **commit_id;
int arg = 1;
setup_git_directory();
@@ -230,20 +232,30 @@ int main(int argc, char **argv)
else if (argv[arg][1] == 'v')
get_verbosely = 1;
else if (argv[arg][1] == 'w')
- write_ref = argv[++arg];
+ write_ref = &argv[++arg];
else if (!strcmp(argv[arg], "--recover"))
get_recover = 1;
+ else if (!strcmp(argv[arg], "--stdin"))
+ commits_on_stdin = 1;
else
usage(local_pull_usage);
arg++;
}
- if (argc < arg + 2)
+ if (argc < arg + 2 - commits_on_stdin)
usage(local_pull_usage);
- commit_id = argv[arg];
- path = argv[arg + 1];
+ if (commits_on_stdin) {
+ commits = pull_targets_stdin(&commit_id, &write_ref);
+ } else {
+ commit_id = (char **) &argv[arg++];
+ commits = 1;
+ }
+ path = argv[arg];
- if (pull(1, &commit_id, &write_ref, path))
+ if (pull(commits, commit_id, write_ref, path))
return 1;
+ if (commits_on_stdin)
+ pull_targets_free(commits, commit_id, write_ref);
+
return 0;
}
-
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