X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff-files.c;h=3e7f5f105b19fd47fd8b3716617592ec2a60da47;hb=be7db6e574b95c70ac544c78d74fdeea0fb4058d;hp=38599b5b755df431e3e061df8a304698cc4496fc;hpb=56fc63193975edd4b9f520b6c65c2b97ecd8ee38;p=git.git

diff --git a/diff-files.c b/diff-files.c
index 38599b5b..3e7f5f10 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -7,12 +7,14 @@
 #include "diff.h"
 
 static const char diff_files_usage[] =
-"git-diff-files [-q] "
-"[<common diff options>] [<path>...]"
+"git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
 static struct diff_options diff_options;
 static int silent = 0;
+static int diff_unmerged_stage = 2;
+static int combine_merges = 0;
+static int dense_combined_merges = 0;
 
 static void show_unmerge(const char *path)
 {
@@ -46,12 +48,30 @@ int main(int argc, const char **argv)
 			argc--;
 			break;
 		}
-		if (!strcmp(argv[1], "-q"))
+		if (!strcmp(argv[1], "-0"))
+			diff_unmerged_stage = 0;
+		else if (!strcmp(argv[1], "-1"))
+			diff_unmerged_stage = 1;
+		else if (!strcmp(argv[1], "-2"))
+			diff_unmerged_stage = 2;
+		else if (!strcmp(argv[1], "-3"))
+			diff_unmerged_stage = 3;
+		else if (!strcmp(argv[1], "--base"))
+			diff_unmerged_stage = 1;
+		else if (!strcmp(argv[1], "--ours"))
+			diff_unmerged_stage = 2;
+		else if (!strcmp(argv[1], "--theirs"))
+			diff_unmerged_stage = 3;
+		else if (!strcmp(argv[1], "-q"))
 			silent = 1;
 		else if (!strcmp(argv[1], "-r"))
 			; /* no-op */
 		else if (!strcmp(argv[1], "-s"))
 			; /* no-op */
+		else if (!strcmp(argv[1], "-c"))
+			combine_merges = 1;
+		else if (!strcmp(argv[1], "--cc"))
+			dense_combined_merges = combine_merges = 1;
 		else {
 			int diff_opt_cnt;
 			diff_opt_cnt = diff_opt_parse(&diff_options,
@@ -68,6 +88,8 @@ int main(int argc, const char **argv)
 		}
 		argv++; argc--;
 	}
+	if (dense_combined_merges)
+		diff_options.output_format = DIFF_FORMAT_PATCH;
 
 	/* Find the directory, and set up the pathspec */
 	pathspec = get_pathspec(prefix, argv + 1);
@@ -94,12 +116,71 @@ int main(int argc, const char **argv)
 			continue;
 
 		if (ce_stage(ce)) {
-			show_unmerge(ce->name);
-			while (i < entries &&
-			       !strcmp(ce->name, active_cache[i]->name))
+			struct {
+				struct combine_diff_path p;
+				struct combine_diff_parent filler[5];
+			} combine;
+			int num_compare_stages = 0;
+
+			combine.p.next = NULL;
+			combine.p.len = ce_namelen(ce);
+			combine.p.path = xmalloc(combine.p.len + 1);
+			memcpy(combine.p.path, ce->name, combine.p.len);
+			combine.p.path[combine.p.len] = 0;
+			combine.p.mode = 0;
+			memset(combine.p.sha1, 0, 20);
+			memset(&combine.p.parent[0], 0,
+			       sizeof(combine.filler));
+
+			while (i < entries) {
+				struct cache_entry *nce = active_cache[i];
+				int stage;
+
+				if (strcmp(ce->name, nce->name))
+					break;
+
+				/* Stage #2 (ours) is the first parent,
+				 * stage #3 (theirs) is the second.
+				 */
+				stage = ce_stage(nce);
+				if (2 <= stage) {
+					int mode = ntohl(nce->ce_mode);
+					num_compare_stages++;
+					memcpy(combine.p.parent[stage-2].sha1,
+					       nce->sha1, 20);
+					combine.p.parent[stage-2].mode =
+						canon_mode(mode);
+					combine.p.parent[stage-2].status =
+						DIFF_STATUS_MODIFIED;
+				}
+
+				/* diff against the proper unmerged stage */
+				if (stage == diff_unmerged_stage)
+					ce = nce;
 				i++;
-			i--; /* compensate for loop control increments */
-			continue;
+			}
+			/*
+			 * Compensate for loop update
+			 */
+			i--;
+
+			if (combine_merges && num_compare_stages == 2) {
+				show_combined_diff(&combine.p, 2,
+						   dense_combined_merges,
+						   NULL,
+						   &diff_options);
+				free(combine.p.path);
+				continue;
+			}
+			free(combine.p.path);
+
+			/*
+			 * Show the diff for the 'ce' if we found the one
+			 * from the desired stage.
+			 */
+			show_unmerge(ce->name);
+			if (ce_stage(ce) != diff_unmerged_stage)
+				continue;
 		}
 
 		if (lstat(ce->name, &st) < 0) {
@@ -112,12 +193,12 @@ int main(int argc, const char **argv)
 			show_file('-', ce);
 			continue;
 		}
-		changed = ce_match_stat(ce, &st);
+		changed = ce_match_stat(ce, &st, 0);
 		if (!changed && !diff_options.find_copies_harder)
 			continue;
 		oldmode = ntohl(ce->ce_mode);
 
-		newmode = DIFF_FILE_CANON_MODE(st.st_mode);
+		newmode = canon_mode(st.st_mode);
 		if (!trust_executable_bit &&
 		    S_ISREG(newmode) && S_ISREG(oldmode) &&
 		    ((newmode ^ oldmode) == 0111))