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From: Elijah Newren <newren@gmail.com>
To: git@vger.kernel.org
Cc: Elijah Newren <newren@gmail.com>
Subject: [PATCH 21/37] merge-recursive: New function to assist resolving renames in-core only
Date: Mon, 20 Sep 2010 02:28:54 -0600	[thread overview]
Message-ID: <1284971350-30590-22-git-send-email-newren@gmail.com> (raw)
In-Reply-To: <1284971350-30590-1-git-send-email-newren@gmail.com>

process_renames() and process_entry() have nearly identical code for
doing three-way file merging to resolve content changes.  Since we are
already deferring some of the current rename handling in order to better
handle D/F conflicts, it seems to make sense to defer content merging as
well and remove the (nearly) duplicated code sections for handling this
merging.

To facilitate this process, add a new update_stages_and_entry() function
which will map the higher stage index entries from two files involved in a
rename into the resulting rename destination's index entries, and update
the associated stage_data structure.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 merge-recursive.c |   31 ++++++++++++++++++++++++++++---
 1 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/merge-recursive.c b/merge-recursive.c
index f15291e..ec47d56 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -418,11 +418,10 @@ static struct string_list *get_renames(struct merge_options *o,
 	return renames;
 }
 
-static int update_stages(const char *path, struct diff_filespec *o,
+static int update_stages_options(const char *path, struct diff_filespec *o,
 			 struct diff_filespec *a, struct diff_filespec *b,
-			 int clear)
+			 int clear, int options)
 {
-	int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
 	if (clear)
 		if (remove_file_from_cache(path))
 			return -1;
@@ -438,6 +437,32 @@ static int update_stages(const char *path, struct diff_filespec *o,
 	return 0;
 }
 
+static int update_stages(const char *path, struct diff_filespec *o,
+			 struct diff_filespec *a, struct diff_filespec *b,
+			 int clear)
+{
+	int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
+	return update_stages_options(path, o, a, b, clear, options);
+}
+
+static int update_stages_and_entry(const char *path,
+				   struct stage_data *entry,
+				   struct diff_filespec *o,
+				   struct diff_filespec *a,
+				   struct diff_filespec *b,
+				   int clear)
+{
+	entry->processed = 0;
+	entry->stages[1].mode = o->mode;
+	entry->stages[2].mode = a->mode;
+	entry->stages[3].mode = b->mode;
+	hashcpy(entry->stages[1].sha, o->sha1);
+	hashcpy(entry->stages[2].sha, a->sha1);
+	hashcpy(entry->stages[3].sha, b->sha1);
+	int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_SKIP_DFCHECK;
+	return update_stages_options(path, o, a, b, clear, options);
+}
+
 static int remove_file(struct merge_options *o, int clean,
 		       const char *path, int no_wd)
 {
-- 
1.7.3.271.g16009

  parent reply	other threads:[~2010-09-20  8:30 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-20  8:28 [PATCH 00/37] Audit and fix corner case bugs in recursive merge Elijah Newren
2010-09-20  8:28 ` [PATCH 01/37] t3030: Add a testcase for resolvable rename/add conflict with symlinks Elijah Newren
2010-09-20  9:15   ` Johannes Sixt
2010-09-20  9:34   ` Jakub Narebski
2010-09-20  8:28 ` [PATCH 02/37] merge-recursive: Restructure showing how to chain more process_* functions Elijah Newren
2010-09-20  8:28 ` [PATCH 03/37] t6032: Add a test checking for excessive output from merge Elijah Newren
2010-09-20  8:28 ` [PATCH 04/37] t6022: Add test combinations of {content conflict?, D/F conflict remains?} Elijah Newren
2010-09-20  8:28 ` [PATCH 05/37] t6022: Add tests for reversing order of merges when D/F conflicts present Elijah Newren
2010-09-20  8:28 ` [PATCH 06/37] t6022: Add tests with both rename source & dest involved in D/F conflicts Elijah Newren
2010-09-20  8:28 ` [PATCH 07/37] t6022: Add paired rename+D/F conflict: (two/file, one/file) -> (one, two) Elijah Newren
2010-09-20  8:28 ` [PATCH 08/37] t6022: Add tests for rename/rename combined with D/F conflicts Elijah Newren
2010-09-20  8:28 ` [PATCH 09/37] t6020: Modernize style a bit Elijah Newren
2010-09-20  9:24   ` Johannes Sixt
2010-09-20 16:03     ` Elijah Newren
2010-09-22  1:44       ` Junio C Hamano
2010-09-22  4:41         ` Elijah Newren
2010-09-20  8:28 ` [PATCH 10/37] t6020: Add a testcase for modify/delete + directory/file conflict Elijah Newren
2010-09-20  8:28 ` [PATCH 11/37] t6036: Test index and worktree state, not just that merge fails Elijah Newren
2010-09-20  8:28 ` [PATCH 12/37] t6036: Add a second testcase similar to the first but with content changes Elijah Newren
2010-09-20  8:28 ` [PATCH 13/37] t6036: Add testcase for undetected conflict Elijah Newren
2010-09-20  8:28 ` [PATCH 14/37] merge-recursive: Small code clarification -- variable name and comments Elijah Newren
2010-09-20  8:28 ` [PATCH 15/37] merge-recursive: Rename conflict_rename_rename*() for clarity Elijah Newren
2010-09-20  8:28 ` [PATCH 16/37] merge-recursive: Nuke rename/directory conflict detection Elijah Newren
2010-09-20  8:28 ` [PATCH 17/37] merge-recursive: Move rename/delete handling into dedicated function Elijah Newren
2010-09-20  8:28 ` [PATCH 18/37] merge-recursive: Move delete/modify " Elijah Newren
2010-09-20  8:28 ` [PATCH 19/37] merge-recursive: Move process_entry's content merging into a function Elijah Newren
2010-09-20  8:28 ` [PATCH 20/37] merge-recursive: New data structures for deferring of D/F conflicts Elijah Newren
2010-09-20  8:28 ` Elijah Newren [this message]
2010-09-20  8:28 ` [PATCH 22/37] merge-recursive: Have process_entry() skip D/F or rename entries Elijah Newren
2010-09-20  8:28 ` [PATCH 23/37] merge-recursive: Structure process_df_entry() to handle more cases Elijah Newren
2010-09-20  8:28 ` [PATCH 24/37] merge-recursive: Update conflict_rename_rename_1to2() call signature Elijah Newren
2010-09-20  8:28 ` [PATCH 25/37] merge-recursive: Update merge_content() " Elijah Newren
2010-09-20  8:28 ` [PATCH 26/37] merge-recursive: Avoid doubly merging rename/add conflict contents Elijah Newren
2010-09-20  8:29 ` [PATCH 27/37] merge-recursive: Move handling of double rename of one file to two Elijah Newren
2010-09-20  8:29 ` [PATCH 28/37] merge-recursive: Move handling of double rename of one file to other file Elijah Newren
2010-09-20  8:29 ` [PATCH 29/37] merge-recursive: Delay handling of rename/delete conflicts Elijah Newren
2010-09-20  8:29 ` [PATCH 30/37] merge-recursive: Delay content merging for renames Elijah Newren
2010-09-20  8:29 ` [PATCH 31/37] merge-recursive: Delay modify/delete conflicts if D/F conflict present Elijah Newren
2010-09-20  8:29 ` [PATCH 32/37] conflict_rename_delete(): Check whether D/F conflicts are still present Elijah Newren
2010-09-20  8:29 ` [PATCH 33/37] conflict_rename_rename_1to2(): Fix checks for presence of D/F conflicts Elijah Newren
2010-09-20  8:29 ` [PATCH 34/37] merge_content(): Check whether D/F conflicts are still present Elijah Newren
2010-09-20  8:29 ` [PATCH 35/37] handle_delete_modify(): " Elijah Newren
2010-09-20  8:29 ` [PATCH 36/37] merge-recursive: Make room for directories in D/F conflicts Elijah Newren
2010-09-20 11:40   ` Johannes Sixt
2010-09-20 16:06     ` Elijah Newren
2010-09-20  8:29 ` [PATCH 37/37] merge-recursive: Remove redundant path clearing for " Elijah Newren

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