[PATCH] upload-pack: use argv_array for pack_objects

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STALE3735d

3 messages, 3 authors, 2016-06-15 · open the first message on its own page

[PATCH] upload-pack: use argv_array for pack_objects

From: Michael Procter <hidden>
Date: 2016-06-15 23:08:27

Use the argv_array in the child_process structure, to avoid having to
manually maintain an array size.

Signed-off-by: Michael Procter <redacted>
---
 upload-pack.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/upload-pack.c b/upload-pack.c
index b3f6653..dc802a0 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -90,35 +90,32 @@ static void create_pack_file(void)
 		"corruption on the remote side.";
 	int buffered = -1;
 	ssize_t sz;
-	const char *argv[13];
-	int i, arg = 0;
+	int i;
 	FILE *pipe_fd;
 
 	if (shallow_nr) {
-		argv[arg++] = "--shallow-file";
-		argv[arg++] = "";
+		argv_array_push(&pack_objects.args, "--shallow-file");
+		argv_array_push(&pack_objects.args, "");
 	}
-	argv[arg++] = "pack-objects";
-	argv[arg++] = "--revs";
+	argv_array_push(&pack_objects.args, "pack-objects");
+	argv_array_push(&pack_objects.args, "--revs");
 	if (use_thin_pack)
-		argv[arg++] = "--thin";
+		argv_array_push(&pack_objects.args, "--thin");
 
-	argv[arg++] = "--stdout";
+	argv_array_push(&pack_objects.args, "--stdout");
 	if (shallow_nr)
-		argv[arg++] = "--shallow";
+		argv_array_push(&pack_objects.args, "--shallow");
 	if (!no_progress)
-		argv[arg++] = "--progress";
+		argv_array_push(&pack_objects.args, "--progress");
 	if (use_ofs_delta)
-		argv[arg++] = "--delta-base-offset";
+		argv_array_push(&pack_objects.args, "--delta-base-offset");
 	if (use_include_tag)
-		argv[arg++] = "--include-tag";
-	argv[arg++] = NULL;
+		argv_array_push(&pack_objects.args, "--include-tag");
 
 	pack_objects.in = -1;
 	pack_objects.out = -1;
 	pack_objects.err = -1;
 	pack_objects.git_cmd = 1;
-	pack_objects.argv = argv;
 
 	if (start_command(&pack_objects))
 		die("git upload-pack: unable to fork git-pack-objects");
-- 
2.7.2.368.g02f4152

Re: [PATCH] upload-pack: use argv_array for pack_objects

From: Eric Sunshine <hidden>
Date: 2016-06-15 23:08:29

On Thu, Feb 25, 2016 at 7:13 AM, Michael Procter [off-list ref] wrote:
quoted hunk
Use the argv_array in the child_process structure, to avoid having to
manually maintain an array size.

Signed-off-by: Michael Procter <redacted>
---
diff --git a/upload-pack.c b/upload-pack.c
@@ -90,35 +90,32 @@ static void create_pack_file(void)
                "corruption on the remote side.";
        int buffered = -1;
        ssize_t sz;
-       const char *argv[13];
-       int i, arg = 0;
+       int i;
        FILE *pipe_fd;

        if (shallow_nr) {
-               argv[arg++] = "--shallow-file";
-               argv[arg++] = "";
+               argv_array_push(&pack_objects.args, "--shallow-file");
+               argv_array_push(&pack_objects.args, "");
        }
Not worth a re-roll, but:

    if (shallow_nr)
        argv_array_pushv(..., "--shallow-file", "", NULL);

would have made it clearer that the two arguments are related (and
allowed you to drop the braces).
-       argv[arg++] = "pack-objects";
-       argv[arg++] = "--revs";
+       argv_array_push(&pack_objects.args, "pack-objects");
+       argv_array_push(&pack_objects.args, "--revs");
        if (use_thin_pack)
-               argv[arg++] = "--thin";
+               argv_array_push(&pack_objects.args, "--thin");

-       argv[arg++] = "--stdout";
+       argv_array_push(&pack_objects.args, "--stdout");
        if (shallow_nr)
-               argv[arg++] = "--shallow";
+               argv_array_push(&pack_objects.args, "--shallow");
        if (!no_progress)
-               argv[arg++] = "--progress";
+               argv_array_push(&pack_objects.args, "--progress");
        if (use_ofs_delta)
-               argv[arg++] = "--delta-base-offset";
+               argv_array_push(&pack_objects.args, "--delta-base-offset");
        if (use_include_tag)
-               argv[arg++] = "--include-tag";
-       argv[arg++] = NULL;
+               argv_array_push(&pack_objects.args, "--include-tag");

        pack_objects.in = -1;
        pack_objects.out = -1;
        pack_objects.err = -1;
        pack_objects.git_cmd = 1;
-       pack_objects.argv = argv;

        if (start_command(&pack_objects))
                die("git upload-pack: unable to fork git-pack-objects");
--
2.7.2.368.g02f4152

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Re: [PATCH] upload-pack: use argv_array for pack_objects

From: Jeff King <hidden>
Date: 2016-06-15 23:08:29

On Thu, Feb 25, 2016 at 09:14:01PM -0500, Eric Sunshine wrote:
On Thu, Feb 25, 2016 at 7:13 AM, Michael Procter [off-list ref] wrote:
quoted
Use the argv_array in the child_process structure, to avoid having to
manually maintain an array size.

Signed-off-by: Michael Procter <redacted>
---
diff --git a/upload-pack.c b/upload-pack.c
@@ -90,35 +90,32 @@ static void create_pack_file(void)
                "corruption on the remote side.";
        int buffered = -1;
        ssize_t sz;
-       const char *argv[13];
-       int i, arg = 0;
+       int i;
        FILE *pipe_fd;

        if (shallow_nr) {
-               argv[arg++] = "--shallow-file";
-               argv[arg++] = "";
+               argv_array_push(&pack_objects.args, "--shallow-file");
+               argv_array_push(&pack_objects.args, "");
        }
Not worth a re-roll, but:

    if (shallow_nr)
        argv_array_pushv(..., "--shallow-file", "", NULL);

would have made it clearer that the two arguments are related (and
allowed you to drop the braces).
This same pattern repeats in a few places, and I always want to say:

  argv_array_pushf(..., "--shallow-file=%s", file);

but the parsing side is lazy. It wouldn't be too hard to fix (and would
make the option nicer for users, too!), but perhaps it would be better
still to convert git.c to use the standard parse-options.

That is more work, though. Maybe it would be good for the
low-hanging-fruit list.

Other than that, Michael's patch looks fine to me (unsurprising, since I
already saw it off-list and offered my commentary :) ). I agree it's not
worth a re-roll for just this point.

-Peff
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