From: mhagger@alum.mit.edu
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, Jeff King <peff@peff.net>,
Drew Northup <drew.northup@maine.edu>,
Jakub Narebski <jnareb@gmail.com>,
Heiko Voigt <hvoigt@hvoigt.net>,
Johan Herland <johan@herland.net>,
Julian Phillips <julian@quantumfyre.co.uk>,
Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH v2 08/51] is_dup_ref(): extract function from sort_ref_array()
Date: Mon, 12 Dec 2011 06:38:15 +0100 [thread overview]
Message-ID: <1323668338-1764-9-git-send-email-mhagger@alum.mit.edu> (raw)
In-Reply-To: <1323668338-1764-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Giving the function a name makes the code easier to understand.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 37 +++++++++++++++++++++++++------------
1 files changed, 25 insertions(+), 12 deletions(-)
diff --git a/refs.c b/refs.c
index 2252c66..ea058c1 100644
--- a/refs.c
+++ b/refs.c
@@ -84,9 +84,28 @@ static int ref_entry_cmp(const void *a, const void *b)
return strcmp(one->name, two->name);
}
+/*
+ * Emit a warning and return true iff ref1 and ref2 have the same name
+ * and the same sha1. Die if they have the same name but different
+ * sha1s.
+ */
+static int is_dup_ref(const struct ref_entry *ref1, const struct ref_entry *ref2)
+{
+ if (!strcmp(ref1->name, ref2->name)) {
+ /* Duplicate name; make sure that the SHA1s match: */
+ if (hashcmp(ref1->sha1, ref2->sha1))
+ die("Duplicated ref, and SHA1s don't match: %s",
+ ref1->name);
+ warning("Duplicated ref: %s", ref1->name);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
static void sort_ref_array(struct ref_array *array)
{
- int i = 0, j = 1;
+ int i, j;
/* Nothing to sort unless there are at least two entries */
if (array->nr < 2)
@@ -95,19 +114,13 @@ static void sort_ref_array(struct ref_array *array)
qsort(array->refs, array->nr, sizeof(*array->refs), ref_entry_cmp);
/* Remove any duplicates from the ref_array */
- for (; j < array->nr; j++) {
- struct ref_entry *a = array->refs[i];
- struct ref_entry *b = array->refs[j];
- if (!strcmp(a->name, b->name)) {
- if (hashcmp(a->sha1, b->sha1))
- die("Duplicated ref, and SHA1s don't match: %s",
- a->name);
- warning("Duplicated ref: %s", a->name);
- free(b);
+ i = 0;
+ for (j = 1; j < array->nr; j++) {
+ if (is_dup_ref(array->refs[i], array->refs[j])) {
+ free(array->refs[j]);
continue;
}
- i++;
- array->refs[i] = array->refs[j];
+ array->refs[++i] = array->refs[j];
}
array->nr = i + 1;
}
--
1.7.8
next prev parent reply other threads:[~2011-12-12 5:40 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 5:38 [PATCH v2 00/51] ref-api-C and ref-api-D re-roll mhagger
2011-12-12 5:38 ` [PATCH v2 01/51] struct ref_entry: document name member mhagger
2011-12-12 5:38 ` [PATCH v2 02/51] refs: rename "refname" variables mhagger
2011-12-13 0:37 ` Junio C Hamano
2011-12-12 5:38 ` [PATCH v2 03/51] refs: rename parameters result -> sha1 mhagger
2011-12-12 5:38 ` [PATCH v2 04/51] clear_ref_array(): rename from free_ref_array() mhagger
2011-12-12 5:38 ` [PATCH v2 05/51] is_refname_available(): remove the "quiet" argument mhagger
2011-12-12 5:38 ` [PATCH v2 06/51] parse_ref_line(): add docstring mhagger
2011-12-12 5:38 ` [PATCH v2 07/51] add_ref(): " mhagger
2011-12-12 5:38 ` mhagger [this message]
2011-12-12 8:33 ` [PATCH v2 08/51] is_dup_ref(): extract function from sort_ref_array() Jeff King
2011-12-12 11:44 ` Michael Haggerty
2011-12-12 17:14 ` Junio C Hamano
2011-12-12 22:33 ` Junio C Hamano
2011-12-13 4:35 ` Michael Haggerty
2011-12-13 5:00 ` Michael Haggerty
2011-12-12 5:38 ` [PATCH v2 09/51] refs: change signatures of get_packed_refs() and get_loose_refs() mhagger
2011-12-12 5:38 ` [PATCH v2 10/51] get_ref_dir(): change signature mhagger
2011-12-12 5:38 ` [PATCH v2 11/51] resolve_gitlink_ref(): improve docstring mhagger
2011-12-12 5:38 ` [PATCH v2 12/51] Pass a (ref_cache *) to the resolve_gitlink_*() helper functions mhagger
2011-12-12 5:38 ` [PATCH v2 13/51] resolve_gitlink_ref_recursive(): change to work with struct ref_cache mhagger
2011-12-12 5:38 ` [PATCH v2 14/51] repack_without_ref(): remove temporary mhagger
2011-12-12 5:38 ` [PATCH v2 15/51] create_ref_entry(): extract function from add_ref() mhagger
2011-12-12 5:38 ` [PATCH v2 16/51] add_ref(): take a (struct ref_entry *) parameter mhagger
2011-12-12 5:38 ` [PATCH v2 17/51] do_for_each_ref(): correctly terminate while processesing extra_refs mhagger
2011-12-12 22:41 ` Junio C Hamano
2011-12-12 5:38 ` [PATCH v2 18/51] do_for_each_ref_in_array(): new function mhagger
2011-12-12 5:38 ` [PATCH v2 19/51] do_for_each_ref_in_arrays(): " mhagger
2011-12-12 5:38 ` [PATCH v2 20/51] repack_without_ref(): reimplement using do_for_each_ref_in_array() mhagger
2011-12-12 22:44 ` Junio C Hamano
2011-12-12 5:38 ` [PATCH v2 21/51] names_conflict(): new function, extracted from is_refname_available() mhagger
2011-12-12 5:38 ` [PATCH v2 22/51] names_conflict(): simplify implementation mhagger
2011-12-12 5:38 ` [PATCH v2 23/51] is_refname_available(): reimplement using do_for_each_ref_in_array() mhagger
2011-12-12 5:38 ` [PATCH v2 24/51] refs.c: reorder definitions more logically mhagger
2011-12-12 5:38 ` [PATCH v2 25/51] free_ref_entry(): new function mhagger
2011-12-12 5:38 ` [PATCH v2 26/51] check_refname_component(): return 0 for zero-length components mhagger
2011-12-12 5:38 ` [PATCH v2 27/51] struct ref_entry: nest the value part in a union mhagger
2011-12-12 5:38 ` [PATCH v2 28/51] refs.c: rename ref_array -> ref_dir mhagger
2011-12-13 0:45 ` Junio C Hamano
2011-12-13 5:43 ` Michael Haggerty
2011-12-13 6:37 ` Junio C Hamano
2011-12-13 19:12 ` Michael Haggerty
2011-12-13 19:17 ` Junio C Hamano
2011-12-13 22:13 ` Michael Haggerty
2011-12-13 23:24 ` Junio C Hamano
2011-12-14 0:19 ` Junio C Hamano
2011-12-14 2:33 ` Jeff King
2011-12-15 8:19 ` Michael Haggerty
2011-12-15 8:37 ` Jeff King
2012-01-17 15:07 ` Michael Haggerty
2012-02-10 14:51 ` Michael Haggerty
2012-02-10 20:44 ` Jeff King
2012-02-10 21:17 ` Junio C Hamano
2012-02-11 6:33 ` Michael Haggerty
2011-12-12 5:38 ` [PATCH v2 29/51] refs: store references hierarchically mhagger
2011-12-12 5:38 ` [PATCH v2 30/51] sort_ref_dir(): do not sort if already sorted mhagger
2011-12-12 23:26 ` Junio C Hamano
2011-12-12 5:38 ` [PATCH v2 31/51] refs: sort ref_dirs lazily mhagger
2011-12-12 5:38 ` [PATCH v2 32/51] do_for_each_ref(): only iterate over the subtree that was requested mhagger
2011-12-12 5:38 ` [PATCH v2 33/51] get_ref_dir(): keep track of the current ref_dir mhagger
2011-12-12 5:38 ` [PATCH v2 34/51] refs: wrap top-level ref_dirs in ref_entries mhagger
2011-12-12 5:38 ` [PATCH v2 35/51] get_packed_refs(): return (ref_entry *) instead of (ref_dir *) mhagger
2011-12-12 5:38 ` [PATCH v2 36/51] get_loose_refs(): " mhagger
2011-12-12 5:38 ` [PATCH v2 37/51] is_refname_available(): take " mhagger
2011-12-12 5:38 ` [PATCH v2 38/51] find_ref(): " mhagger
2011-12-12 5:38 ` [PATCH v2 39/51] read_packed_refs(): " mhagger
2011-12-12 5:38 ` [PATCH v2 40/51] add_ref(): " mhagger
2011-12-12 5:38 ` [PATCH v2 41/51] find_containing_direntry(): use " mhagger
2011-12-12 5:38 ` [PATCH v2 42/51] search_ref_dir(): take " mhagger
2011-12-12 5:38 ` [PATCH v2 43/51] add_entry(): " mhagger
2011-12-12 5:38 ` [PATCH v2 44/51] do_for_each_ref_in_dir*(): " mhagger
2011-12-12 5:38 ` [PATCH v2 45/51] sort_ref_dir(): " mhagger
2011-12-12 5:38 ` [PATCH v2 46/51] struct ref_dir: store a reference to the enclosing ref_cache mhagger
2011-12-12 5:38 ` [PATCH v2 47/51] read_loose_refs(): take a (ref_entry *) as argument mhagger
2011-12-12 5:38 ` [PATCH v2 48/51] refs: read loose references lazily mhagger
2011-12-12 5:38 ` [PATCH v2 49/51] is_refname_available(): query only possibly-conflicting references mhagger
2011-12-12 5:38 ` [PATCH v2 50/51] read_packed_refs(): keep track of the directory being worked in mhagger
2011-12-12 5:38 ` [PATCH v2 51/51] repack_without_ref(): call clear_packed_ref_cache() mhagger
2011-12-12 8:24 ` [PATCH v2 00/51] ref-api-C and ref-api-D re-roll Junio C Hamano
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