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authorShawn O. Pearce <spearce@spearce.org>2007-03-07 23:07:26 (GMT)
committerShawn O. Pearce <spearce@spearce.org>2007-03-07 23:07:26 (GMT)
commite8438420bb7d368bec3647b90c557b9931582267 (patch)
tree6a5737f68624bc073e8bea3c7de8914d481b4bd3 /fast-import.c
parent60b9004cdb106ce56589cbe587b6b5e7d6ad3cf9 (diff)
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Allow fast-import frontends to reload the marks table
I'm giving fast-import a lesson on how to reload the marks table using the same format it outputs with --export-marks. This way a frontend can reload the marks table from a prior import, making incremental imports less painful. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Diffstat (limited to 'fast-import.c')
-rw-r--r--fast-import.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/fast-import.c b/fast-import.c
index a092212..fbed8e4 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1997,6 +1997,40 @@ static void cmd_checkpoint(void)
read_next_command();
}
+static void import_marks(const char *input_file)
+{
+ char line[512];
+ FILE *f = fopen(input_file, "r");
+ if (!f)
+ die("cannot read %s: %s", input_file, strerror(errno));
+ while (fgets(line, sizeof(line), f)) {
+ uintmax_t mark;
+ char *end;
+ unsigned char sha1[20];
+ struct object_entry *e;
+
+ end = strchr(line, '\n');
+ if (line[0] != ':' || !end)
+ die("corrupt mark line: %s", line);
+ *end = 0;
+ mark = strtoumax(line + 1, &end, 10);
+ if (!mark || end == line + 1
+ || *end != ' ' || get_sha1(end + 1, sha1))
+ die("corrupt mark line: %s", line);
+ e = find_object(sha1);
+ if (!e) {
+ enum object_type type = sha1_object_info(sha1, NULL);
+ if (type < 0)
+ die("object not found: %s", sha1_to_hex(sha1));
+ e = insert_object(sha1);
+ e->type = type;
+ e->pack_id = MAX_PACK_ID;
+ }
+ insert_mark(mark, e);
+ }
+ fclose(f);
+}
+
static const char fast_import_usage[] =
"git-fast-import [--date-format=f] [--max-pack-size=n] [--depth=n] [--active-branches=n] [--export-marks=marks.file]";
@@ -2034,6 +2068,8 @@ int main(int argc, const char **argv)
max_depth = strtoul(a + 8, NULL, 0);
else if (!prefixcmp(a, "--active-branches="))
max_active_branches = strtoul(a + 18, NULL, 0);
+ else if (!prefixcmp(a, "--import-marks="))
+ import_marks(a + 15);
else if (!prefixcmp(a, "--export-marks="))
mark_file = a + 15;
else if (!prefixcmp(a, "--export-pack-edges=")) {