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[PATCH/RFC 1/2] Move "--parent" parsing into generic revision.c library code

From
Linus Torvalds <torvalds@osdl.org>
Date
Mar 31, 2006, 00:52 UTC
Message-ID
<Pine.LNX.4.64.0603301648530.27203@g5.osdl.org>
Move "--parent" parsing into generic revision.c library code

Not only do we do it in both rev-list.c and git.c, the revision walking code will soon want to know whether we should rewrite parenthood information or not.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

This is the trivial part. The next email will contain the real meat of the change, which starts doing path limiting incrementally, and makes doing things like

	git log drivers/

on the kernel a hell of a lot more pleasant, because it starts outputting the log immediately instead of pausing for about 20 seconds before it has parsed all of the history and then outputting it all in one go.

There's a HUGE difference to the "feel" of doing pathname limiting git-rev-list options. Not very well tested, but at least this initial preparatory patch is "obviously safe".

diff --git a/git.c b/git.c
index 0b40e30..72039c6 100644
--- a/git.c
+++ b/git.c
@@ -283,7 +283,6 @@ static int cmd_log(int argc, const char 
 	char *buf = xmalloc(LOGSIZE);
 	static enum cmit_fmt commit_format = CMIT_FMT_DEFAULT;
 	int abbrev = DEFAULT_ABBREV;
-	int show_parents = 0;
 	const char *commit_prefix = "commit ";
 
 	argc = setup_revisions(argc, argv, &rev, "HEAD");
@@ -294,9 +293,6 @@ static int cmd_log(int argc, const char 
 			if (commit_format == CMIT_FMT_ONELINE)
 				commit_prefix = "";
 		}
-		else if (!strcmp(arg, "--parents")) {
-			show_parents = 1;
-		}
 		else if (!strcmp(arg, "--no-abbrev")) {
 			abbrev = 0;
 		}
@@ -317,7 +313,7 @@ static int cmd_log(int argc, const char 
 	while ((commit = get_revision(&rev)) != NULL) {
 		printf("%s%s", commit_prefix,
 		       sha1_to_hex(commit->object.sha1));
-		if (show_parents) {
+		if (rev.parents) {
 			struct commit_list *parents = commit->parents;
 			while (parents) {
 				struct object *o = &(parents->item->object);
diff --git a/rev-list.c b/rev-list.c
index f3a989c..19a547a 100644
--- a/rev-list.c
+++ b/rev-list.c
@@ -39,7 +39,6 @@ struct rev_info revs;
 static int bisect_list = 0;
 static int verbose_header = 0;
 static int abbrev = DEFAULT_ABBREV;
-static int show_parents = 0;
 static int show_timestamp = 0;
 static int hdr_termination = 0;
 static const char *commit_prefix = "";
@@ -54,7 +53,7 @@ static void show_commit(struct commit *c
 	if (commit->object.flags & BOUNDARY)
 		putchar('-');
 	fputs(sha1_to_hex(commit->object.sha1), stdout);
-	if (show_parents) {
+	if (revs.parents) {
 		struct commit_list *parents = commit->parents;
 		while (parents) {
 			struct object *o = &(parents->item->object);
@@ -336,10 +335,6 @@ int main(int argc, const char **argv)
 				commit_prefix = "";
 			else
 				commit_prefix = "commit ";
-			continue;
-		}
-		if (!strcmp(arg, "--parents")) {
-			show_parents = 1;
 			continue;
 		}
 		if (!strcmp(arg, "--timestamp")) {
diff --git a/revision.c b/revision.c
index abc8745..0330f9f 100644
--- a/revision.c
+++ b/revision.c
@@ -596,6 +596,10 @@ int setup_revisions(int argc, const char
 				revs->limited = 1;
 				continue;
 			}
+			if (!strcmp(arg, "--parents")) {
+				revs->parents = 1;
+				continue;
+			}
 			if (!strcmp(arg, "--dense")) {
 				revs->dense = 1;
 				continue;
diff --git a/revision.h b/revision.h
index 61e6bc9..0caeecf 100644
--- a/revision.h
+++ b/revision.h
@@ -34,7 +34,8 @@ struct rev_info {
 			edge_hint:1,
 			limited:1,
 			unpacked:1,
-			boundary:1;
+			boundary:1,
+			parents:1;
 
 	/* special limits */
 	int max_count;
Next: Linus Torvalds
Message 1 of 17 in “Move "--parent" parsing into generic revision.c library code”
  1. 1/2 Move "--parent" parsing into generic revision.c library codeLinus Torvalds, Mar 31, 2006
  2. 2/2 Make path-limiting be incremental when possible.Linus Torvalds, Mar 31, 2006
  3. Linus TorvaldsMar 31, 2006
  4. Junio C HamanoMar 31, 2006
  5. Linus TorvaldsMar 31, 2006
  6. Junio C HamanoMar 31, 2006
  7. Linus TorvaldsMar 31, 2006
  8. Junio C HamanoMar 31, 2006
  9. Linus TorvaldsMar 31, 2006
  10. Junio C HamanoMar 31, 2006
  11. Linus TorvaldsApr 2, 2006
  12. Junio C HamanoApr 2, 2006
  13. revision: simplify argument parsing.Junio C Hamano, Apr 2, 2006
  14. revision: --max-age alone does not need limit_list() anymore.Junio C Hamano, Apr 2, 2006
  15. Junio C HamanoMar 31, 2006
  16. Linus TorvaldsMar 31, 2006
  17. Junio C HamanoApr 3, 2006

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