combine-diff: use color

Using the same mechanism as the regular diffs, color combined diff
output.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/combine-diff.c b/combine-diff.c
index 919112bba9271a8e3903b06946cf91036411f1a4..ba8baca0ab9f2c3c48b4678108d4a62c1f9f8fd9 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -497,11 +497,17 @@ static void show_parent_lno(struct sline *sline, unsigned long l0, unsigned long
        printf(" -%lu,%lu", l0, l1-l0);
 }
 
-static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
+static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent,
+                      int use_color)
 {
        unsigned long mark = (1UL<<num_parent);
        int i;
        unsigned long lno = 0;
+       const char *c_frag = diff_get_color(use_color, DIFF_FRAGINFO);
+       const char *c_new = diff_get_color(use_color, DIFF_FILE_NEW);
+       const char *c_old = diff_get_color(use_color, DIFF_FILE_OLD);
+       const char *c_plain = diff_get_color(use_color, DIFF_PLAIN);
+       const char *c_reset = diff_get_color(use_color, DIFF_RESET);
 
        if (!cnt)
                return; /* result deleted */
@@ -522,12 +528,13 @@ static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
                rlines = hunk_end - lno;
                if (cnt < hunk_end)
                        rlines--; /* pointing at the last delete hunk */
+               fputs(c_frag, stdout);
                for (i = 0; i <= num_parent; i++) putchar(combine_marker);
                for (i = 0; i < num_parent; i++)
                        show_parent_lno(sline, lno, hunk_end, i);
                printf(" +%lu,%lu ", lno+1, rlines);
                for (i = 0; i <= num_parent; i++) putchar(combine_marker);
-               putchar('\n');
+               printf("%s\n", c_reset);
                while (lno < hunk_end) {
                        struct lline *ll;
                        int j;
@@ -535,18 +542,23 @@ static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
                        sl = &sline[lno++];
                        ll = sl->lost_head;
                        while (ll) {
+                               fputs(c_old, stdout);
                                for (j = 0; j < num_parent; j++) {
                                        if (ll->parent_map & (1UL<<j))
                                                putchar('-');
                                        else
                                                putchar(' ');
                                }
-                               puts(ll->line);
+                               printf("%s%s\n", ll->line, c_reset);
                                ll = ll->next;
                        }
                        if (cnt < lno)
                                break;
                        p_mask = 1;
+                       if (!(sl->flag & (mark-1)))
+                               fputs(c_plain, stdout);
+                       else
+                               fputs(c_new, stdout);
                        for (j = 0; j < num_parent; j++) {
                                if (p_mask & sl->flag)
                                        putchar('+');
@@ -554,7 +566,7 @@ static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
                                        putchar(' ');
                                p_mask <<= 1;
                        }
-                       printf("%.*s\n", sl->len, sl->bol);
+                       printf("%.*s%s\n", sl->len, sl->bol, c_reset);
                }
        }
 }
@@ -586,14 +598,15 @@ static void reuse_combine_diff(struct sline *sline, unsigned long cnt,
        sline->p_lno[i] = sline->p_lno[j];
 }
 
-static void dump_quoted_path(const char *prefix, const char *path)
+static void dump_quoted_path(const char *prefix, const char *path,
+                            const char *c_meta, const char *c_reset)
 {
-       fputs(prefix, stdout);
+       printf("%s%s", c_meta, prefix);
        if (quote_c_style(path, NULL, NULL, 0))
                quote_c_style(path, NULL, stdout, 0);
        else
                printf("%s", path);
-       putchar('\n');
+       printf("%s\n", c_reset);
 }
 
 static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
@@ -699,18 +712,22 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
 
        if (show_hunks || mode_differs || working_tree_file) {
                const char *abb;
+               int use_color = opt->color_diff;
+               const char *c_meta = diff_get_color(use_color, DIFF_METAINFO);
+               const char *c_reset = diff_get_color(use_color, DIFF_RESET);
 
                if (rev->loginfo)
                        show_log(rev, opt->msg_sep);
-               dump_quoted_path(dense ? "diff --cc " : "diff --combined ", elem->path);
-               printf("index ");
+               dump_quoted_path(dense ? "diff --cc " : "diff --combined ",
+                                elem->path, c_meta, c_reset);
+               printf("%sindex ", c_meta);
                for (i = 0; i < num_parent; i++) {
                        abb = find_unique_abbrev(elem->parent[i].sha1,
                                                 abbrev);
                        printf("%s%s", i ? "," : "", abb);
                }
                abb = find_unique_abbrev(elem->sha1, abbrev);
-               printf("..%s\n", abb);
+               printf("..%s%s\n", abb, c_reset);
 
                if (mode_differs) {
                        int added = !!elem->mode;
@@ -719,10 +736,11 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
                                    DIFF_STATUS_ADDED)
                                        added = 0;
                        if (added)
-                               printf("new file mode %06o", elem->mode);
+                               printf("%snew file mode %06o",
+                                      c_meta, elem->mode);
                        else {
                                if (!elem->mode)
-                                       printf("deleted file ");
+                                       printf("%sdeleted file ", c_meta);
                                printf("mode ");
                                for (i = 0; i < num_parent; i++) {
                                        printf("%s%06o", i ? "," : "",
@@ -731,11 +749,11 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
                                if (elem->mode)
                                        printf("..%06o", elem->mode);
                        }
-                       putchar('\n');
+                       printf("%s\n", c_reset);
                }
-               dump_quoted_path("--- a/", elem->path);
-               dump_quoted_path("+++ b/", elem->path);
-               dump_sline(sline, cnt, num_parent);
+               dump_quoted_path("--- a/", elem->path, c_meta, c_reset);
+               dump_quoted_path("+++ b/", elem->path, c_meta, c_reset);
+               dump_sline(sline, cnt, num_parent, opt->color_diff);
        }
        free(result);