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[PATCH v3 07/14] fetch_pack(): update sought->nr to reflect number of unique entries

From
Michael Haggerty <mhagger@alum.mit.edu>
Date
Sep 9, 2012, 06:19 UTC
Message-ID
<1347171589-13327-8-git-send-email-mhagger@alum.mit.edu>
In-Reply-To
<1347171589-13327-1-git-send-email-mhagger@alum.mit.edu>

fetch_pack() removes duplicates from the "sought" list, thereby shrinking the list. But previously, the caller was not informed about the shrinkage. This would cause a spurious error message to be emitted by cmd_fetch_pack() if "git fetch-pack" is called with duplicate refnames.

Instead, remove duplicates using string_list_remove_duplicates(), which adjusts sought->nr to reflect the new length of the list.

The last test of t5500 inexplicably *required* "git fetch-pack" to fail when fetching a list of references that contains duplicates; i.e., it insisted on the buggy behavior. So change the test to expect the correct behavior.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 builtin/fetch-pack.c  | 15 +--------------
 t/t5500-fetch-pack.sh |  2 +-
 2 files changed, 2 insertions(+), 15 deletions(-)
diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index 63d455f..6cd734a 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -858,19 +858,6 @@ static struct ref *do_fetch_pack(int fd[2],
 	return ref;
 }
 
-static int remove_duplicates(struct string_list *sought)
-{
-	int src, dst;
-
-	if (!sought->nr)
-		return 0;
-
-	for (src = dst = 1; src < sought->nr; src++)
-		if (strcmp(sought->items[src].string, sought->items[dst-1].string))
-			sought->items[dst++] = sought->items[src];
-	return dst;
-}
-
 static int fetch_pack_config(const char *var, const char *value, void *cb)
 {
 	if (strcmp(var, "fetch.unpacklimit") == 0) {
@@ -1090,7 +1077,7 @@ struct ref *fetch_pack(struct fetch_pack_args *my_args,
 
 	if (sought->nr) {
 		sort_string_list(sought);
-		remove_duplicates(sought);
+		string_list_remove_duplicates(sought, 0);
 	}
 
 	if (!ref) {
diff --git a/t/t5500-fetch-pack.sh b/t/t5500-fetch-pack.sh
index 15d277f..acd41e8 100755
--- a/t/t5500-fetch-pack.sh
+++ b/t/t5500-fetch-pack.sh
@@ -391,7 +391,7 @@ test_expect_success 'fetch mixed refs from cmdline and stdin' '
 test_expect_success 'test duplicate refs from stdin' '
 	(
 	cd client &&
-	test_must_fail git fetch-pack --stdin --no-progress .. <../input.dup
+	git fetch-pack --stdin --no-progress .. <../input.dup
 	) >output &&
 	cut -d " " -f 2 <output | sort >actual &&
 	test_cmp expect actual
-- 
1.7.11.3
Previous: Michael HaggertyNext: Michael Haggerty
Message 16 of 32 in “Clean up how fetch_pack() handles the heads list”
  1. 00/14 Clean up how fetch_pack() handles the heads listMichael Haggerty, Sep 9, 2012
  2. 01/14 t5500: add tests of error output for missing refsMichael Haggerty, Sep 9, 2012
  3. 02/14 t5500: add tests of fetch-pack --all --depth=N $URL $REFMichael Haggerty, Sep 9, 2012
  4. Junio C HamanoSep 10, 2012
  5. Michael HaggertySep 10, 2012
  6. Philip OakleySep 18, 2012
  7. 03/14 Rename static function fetch_pack() to http_fetch_pack()Michael Haggerty, Sep 9, 2012
  8. 04/14 fetch_pack(): reindent function decl and defnMichael Haggerty, Sep 9, 2012
  9. 05/14 Change fetch_pack() and friends to take string_list argumentsMichael Haggerty, Sep 9, 2012
  10. Junio C HamanoSep 10, 2012
  11. Michael HaggertySep 17, 2012
  12. Junio C HamanoSep 17, 2012
  13. Jeff KingSep 17, 2012
  14. Junio C HamanoSep 18, 2012
  15. 06/14 filter_refs(): do not check the same sought_pos twiceMichael Haggerty, Sep 9, 2012
  16. 07/14 fetch_pack(): update sought->nr to reflect number of unique entriesMichael Haggerty, Sep 9, 2012
  17. 08/14 filter_refs(): delete matched refs from sought listMichael Haggerty, Sep 9, 2012
  18. 09/14 filter_refs(): build refs list as we goMichael Haggerty, Sep 9, 2012
  19. Junio C HamanoSep 10, 2012
  20. 10/14 filter_refs(): simplify logicMichael Haggerty, Sep 9, 2012
  21. 11/14 cmd_fetch_pack(): return early if finish_connect() failsMichael Haggerty, Sep 9, 2012
  22. 12/14 fetch-pack: report missing refs even if no existing refs were receivedMichael Haggerty, Sep 9, 2012
  23. 13/14 cmd_fetch_pack(): simplify computation of return valueMichael Haggerty, Sep 9, 2012
  24. 14/14 fetch-pack: eliminate spurious error messagesMichael Haggerty, Sep 9, 2012
  25. Junio C HamanoSep 9, 2012
  26. Jeff KingSep 9, 2012
  27. Junio C HamanoSep 9, 2012
  28. Michael HaggertySep 10, 2012
  29. Junio C HamanoSep 10, 2012
  30. Michael HaggertySep 17, 2012
  31. Junio C HamanoSep 17, 2012
  32. Junio C HamanoSep 10, 2012

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