Re: [PATCH 01/10] pack-objects: eat CR in addition to LF after fgets.

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On 3/9/2017 2:01 AM, Jeff King wrote:
On Wed, Mar 08, 2017 at 05:37:56PM +0000, Jeff Hostetler wrote:

From: Jeff Hostetler <git@xxxxxxxxxxxxxxxxx>

Signed-off-by: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx>
---
 builtin/pack-objects.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index f294dcf..7e052bb 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -2764,6 +2764,8 @@ static void get_object_list(int ac, const char **av)
 		int len = strlen(line);
 		if (len && line[len - 1] == '\n')
 			line[--len] = 0;
+		if (len && line[len - 1] == '\r')
+			line[--len] = 0;

Rather than add features to this bespoke line-reader, can we switch this
to use strbuf_getline()? That handles line endings, and avoids the
awkward corner case where fgets "breaks" a long line across two calls.

Something like the patch below. I suspect read_object_list_from_stdin()
should get the same treatment.

Much nicer.  Will do.  Thanks!


diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 76b1919ca..6b9fffe9c 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -2765,7 +2765,7 @@ static void record_recent_commit(struct commit *commit, void *data)
 static void get_object_list(int ac, const char **av)
 {
 	struct rev_info revs;
-	char line[1000];
+	struct strbuf buf = STRBUF_INIT;
 	int flags = 0;

 	init_revisions(&revs, NULL);
@@ -2775,12 +2775,12 @@ static void get_object_list(int ac, const char **av)
 	/* make sure shallows are read */
 	is_repository_shallow();

-	while (fgets(line, sizeof(line), stdin) != NULL) {
-		int len = strlen(line);
-		if (len && line[len - 1] == '\n')
-			line[--len] = 0;
-		if (!len)
+	while (strbuf_getline(&buf, stdin) != EOF) {
+		const char *line = buf.buf;
+
+		if (!buf.len)
 			break;
+
 		if (*line == '-') {
 			if (!strcmp(line, "--not")) {
 				flags ^= UNINTERESTING;
@@ -2800,6 +2800,7 @@ static void get_object_list(int ac, const char **av)
 		if (handle_revision_arg(line, &revs, flags, REVARG_CANNOT_BE_FILENAME))
 			die("bad revision '%s'", line);
 	}
+	strbuf_release(&buf);

 	if (use_bitmap_index && !get_object_list_from_bitmap(&revs))
 		return;




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