builtin/blame: dim uninteresting metadata lines

[thirdparty/git.git] / builtin / blame.c

diff --git a/builtin/blame.c b/builtin/blame.c
index 005f55aaa257fc34f81517650223a3c195c03178..0a10e9d2084fb68f797cae06d26411f23823416e 100644 (file)
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -7,6 +7,7 @@
 
 #include "cache.h"
 #include "config.h"
+#include "color.h"
 #include "builtin.h"
 #include "commit.h"
 #include "diff.h"
@@ -46,6 +47,7 @@ static int xdl_opts;
 static int abbrev = -1;
 static int no_whole_file_rename;
 static int show_progress;
+static char repeated_meta_color[COLOR_MAXLEN];
 
 static struct date_mode blame_date_mode = { DATE_ISO8601 };
 static size_t blame_date_width;
@@ -316,10 +318,11 @@ static const char *format_time(timestamp_t time, const char *tz_str,
 #define OUTPUT_PORCELAIN       010
 #define OUTPUT_SHOW_NAME       020
 #define OUTPUT_SHOW_NUMBER     040
-#define OUTPUT_SHOW_SCORE      0100
-#define OUTPUT_NO_AUTHOR       0200
+#define OUTPUT_SHOW_SCORE      0100
+#define OUTPUT_NO_AUTHOR       0200
 #define OUTPUT_SHOW_EMAIL      0400
-#define OUTPUT_LINE_PORCELAIN 01000
+#define OUTPUT_LINE_PORCELAIN  01000
+#define OUTPUT_COLOR_LINE      02000
 
 static void emit_porcelain_details(struct blame_origin *suspect, int repeat)
 {
@@ -375,6 +378,7 @@ static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int
        struct commit_info ci;
        char hex[GIT_MAX_HEXSZ + 1];
        int show_raw_time = !!(opt & OUTPUT_RAW_TIMESTAMP);
+       const char *color = NULL, *reset = NULL;
 
        get_commit_info(suspect->commit, &ci, 1);
        oid_to_hex_r(hex, &suspect->commit->object.oid);
@@ -384,6 +388,18 @@ static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int
                char ch;
                int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? GIT_SHA1_HEXSZ : abbrev;
 
+               if (opt & OUTPUT_COLOR_LINE) {
+                       if (cnt > 0) {
+                               color = repeated_meta_color;
+                               reset = GIT_COLOR_RESET;
+                       } else  {
+                               color = NULL;
+                               reset = NULL;
+                       }
+               }
+               if (color)
+                       fputs(color, stdout);
+
                if (suspect->commit->object.flags & UNINTERESTING) {
                        if (blank_boundary)
                                memset(hex, ' ', length);
@@ -433,6 +449,8 @@ static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int
                        printf(" %*d) ",
                               max_digits, ent->lno + 1 + cnt);
                }
+               if (reset)
+                       fputs(reset, stdout);
                do {
                        ch = *cp++;
                        putchar(ch);
@@ -607,6 +625,12 @@ static int git_blame_config(const char *var, const char *value, void *cb)
                parse_date_format(value, &blame_date_mode);
                return 0;
        }
+       if (!strcmp(var, "color.blame.repeatedlines")) {
+               if (color_parse_mem(value, strlen(value), repeated_meta_color))
+                       warning(_("invalid color '%s' in color.blame.repeatedLines"),
+                               value);
+               return 0;
+       }
 
        if (git_diff_heuristic_config(var, value, cb) < 0)
                return -1;
@@ -681,6 +705,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
                OPT_BIT('s', NULL, &output_option, N_("Suppress author name and timestamp (Default: off)"), OUTPUT_NO_AUTHOR),
                OPT_BIT('e', "show-email", &output_option, N_("Show author email instead of name (Default: off)"), OUTPUT_SHOW_EMAIL),
                OPT_BIT('w', NULL, &xdl_opts, N_("Ignore whitespace differences"), XDF_IGNORE_WHITESPACE),
+               OPT_BIT(0, "color-lines", &output_option, N_("color redundant metadata from previous line differently"), OUTPUT_COLOR_LINE),
 
                /*
                 * The following two options are parsed by parse_revision_opt()
@@ -940,8 +965,14 @@ parse_done:
 
        blame_coalesce(&sb);
 
-       if (!(output_option & OUTPUT_PORCELAIN))
+       if (!(output_option & OUTPUT_PORCELAIN)) {
                find_alignment(&sb, &output_option);
+               if (!*repeated_meta_color &&
+                   (output_option & OUTPUT_COLOR_LINE))
+                       strcpy(repeated_meta_color, GIT_COLOR_CYAN);
+       }
+       if (output_option & OUTPUT_ANNOTATE_COMPAT)
+               output_option &= ~OUTPUT_COLOR_LINE;
 
        output(&sb, output_option);
        free((void *)sb.final_buf);