From 232c635f7e22acb2ddf526753fdcd3d3718afe99 Mon Sep 17 00:00:00 2001 From: Elijah Newren Date: Thu, 11 Aug 2011 23:20:16 -0600 Subject: [PATCH] merge-recursive: Record more data needed for merging with dual renames When two different files are renamed to one, we need to be able to do three-way merges for both of those files. To do that, we need to record the sha1sum of the (possibly modified) file on the unrenamed side. Modify setup_rename_conflict_info() to take this extra information and record it when the rename_type is RENAME_TWO_FILES_TO_ONE. Signed-off-by: Elijah Newren Signed-off-by: Junio C Hamano --- merge-recursive.c | 42 +++++++++++++++++++++++++++++++++++++++--- 1 file changed, 39 insertions(+), 3 deletions(-) diff --git a/merge-recursive.c b/merge-recursive.c index ccb934356..27714c5bd 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -79,6 +79,8 @@ struct rename_conflict_info { const char *branch2; struct stage_data *dst_entry1; struct stage_data *dst_entry2; + struct diff_filespec ren1_other; + struct diff_filespec ren2_other; }; /* @@ -100,7 +102,10 @@ static inline void setup_rename_conflict_info(enum rename_type rename_type, const char *branch1, const char *branch2, struct stage_data *dst_entry1, - struct stage_data *dst_entry2) + struct stage_data *dst_entry2, + struct merge_options *o, + struct stage_data *src_entry1, + struct stage_data *src_entry2) { struct rename_conflict_info *ci = xcalloc(1, sizeof(struct rename_conflict_info)); ci->rename_type = rename_type; @@ -118,6 +123,24 @@ static inline void setup_rename_conflict_info(enum rename_type rename_type, ci->pair2 = pair2; dst_entry2->rename_conflict_info = ci; } + + if (rename_type == RENAME_TWO_FILES_TO_ONE) { + /* + * For each rename, there could have been + * modifications on the side of history where that + * file was not renamed. + */ + int ostage1 = o->branch1 == branch1 ? 3 : 2; + int ostage2 = ostage1 ^ 1; + + ci->ren1_other.path = pair1->one->path; + hashcpy(ci->ren1_other.sha1, src_entry1->stages[ostage1].sha); + ci->ren1_other.mode = src_entry1->stages[ostage1].mode; + + ci->ren2_other.path = pair2->one->path; + hashcpy(ci->ren2_other.sha1, src_entry2->stages[ostage2].sha); + ci->ren2_other.mode = src_entry2->stages[ostage2].mode; + } } static int show(struct merge_options *o, int v) @@ -1158,7 +1181,10 @@ static int process_renames(struct merge_options *o, branch1, branch2, ren1->dst_entry, - ren2->dst_entry); + ren2->dst_entry, + o, + NULL, + NULL); } else if ((lookup = string_list_lookup(renames2Dst, ren1_dst))) { /* Two different files renamed to the same thing */ char *ren2_dst; @@ -1182,7 +1208,11 @@ static int process_renames(struct merge_options *o, branch1, branch2, ren1->dst_entry, - ren2->dst_entry); + ren2->dst_entry, + o, + ren1->src_entry, + ren2->src_entry); + } else { /* Renamed in 1, maybe changed in 2 */ /* we only use sha1 and mode of these */ @@ -1218,6 +1248,9 @@ static int process_renames(struct merge_options *o, branch1, branch2, ren1->dst_entry, + NULL, + o, + NULL, NULL); } else if ((dst_other.mode == ren1->pair->two->mode) && sha_eq(dst_other.sha1, ren1->pair->two->sha1)) { @@ -1269,6 +1302,9 @@ static int process_renames(struct merge_options *o, branch1, NULL, ren1->dst_entry, + NULL, + o, + NULL, NULL); } } -- 2.26.2