diff --numstat

[jc: with documentation from Jakub]

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

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 7b7b9e8ce92db7fbb2072b75a613b073b0c5a4e6..e112172ca57da75ce6c2dd447cc97c6aa2b6499e 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -16,6 +16,11 @@
        The width of the filename part can be controlled by
        giving another width to it separated by a comma.
 
+--numstat::
+       Similar to \--stat, but shows number of added and
+       deleted lines in decimal notation and pathname without
+       abbreviation, to make it more machine friendly.
+
 --summary::
        Output a condensed summary of extended header information
        such as creations, renames and mode changes.

diff --git a/combine-diff.c b/combine-diff.c
index 46d9121baf2ebb024f6b19993a9b75fa3b67951a..65c786807b3cca8408d5119d03a8e4e268bd3e76 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -856,8 +856,10 @@ void diff_tree_combined(const unsigned char *sha1,
                /* show stat against the first parent even
                 * when doing combined diff.
                 */
-               if (i == 0 && opt->output_format & DIFF_FORMAT_DIFFSTAT)
-                       diffopts.output_format = DIFF_FORMAT_DIFFSTAT;
+               int stat_opt = (opt->output_format &
+                               (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT));
+               if (i == 0 && stat_opt)
+                       diffopts.output_format = stat_opt;
                else
                        diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
                diff_tree_sha1(parent[i], sha1, "", &diffopts);
@@ -887,7 +889,8 @@ void diff_tree_combined(const unsigned char *sha1,
                        }
                        needsep = 1;
                }
-               else if (opt->output_format & DIFF_FORMAT_DIFFSTAT)
+               else if (opt->output_format &
+                        (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT))
                        needsep = 1;
                if (opt->output_format & DIFF_FORMAT_PATCH) {
                        if (needsep)

diff --git a/diff.c b/diff.c
index fb8243261cb3cc9165dbe990586d3865fad4ee61..2dcad1942c0f5137d93ebf709439eb385a4ae500 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -795,6 +795,23 @@ static void show_stats(struct diffstat_t* data, struct diff_options *options)
               set, total_files, adds, dels, reset);
 }
 
+static void show_numstat(struct diffstat_t* data, struct diff_options *options)
+{
+       int i;
+
+       for (i = 0; i < data->nr; i++) {
+               struct diffstat_file *file = data->files[i];
+
+               printf("%d\t%d\t", file->added, file->deleted);
+               if (options->line_termination &&
+                   quote_c_style(file->name, NULL, NULL, 0))
+                       quote_c_style(file->name, NULL, stdout, 0);
+               else
+                       fputs(file->name, stdout);
+               putchar(options->line_termination);
+       }
+}
+
 struct checkdiff_t {
        struct xdiff_emit_state xm;
        const char *filename;
@@ -1731,6 +1748,7 @@ int diff_setup_done(struct diff_options *options)
                                      DIFF_FORMAT_CHECKDIFF |
                                      DIFF_FORMAT_NO_OUTPUT))
                options->output_format &= ~(DIFF_FORMAT_RAW |
+                                           DIFF_FORMAT_NUMSTAT |
                                            DIFF_FORMAT_DIFFSTAT |
                                            DIFF_FORMAT_SUMMARY |
                                            DIFF_FORMAT_PATCH);
@@ -1740,6 +1758,7 @@ int diff_setup_done(struct diff_options *options)
         * recursive bits for other formats here.
         */
        if (options->output_format & (DIFF_FORMAT_PATCH |
+                                     DIFF_FORMAT_NUMSTAT |
                                      DIFF_FORMAT_DIFFSTAT |
                                      DIFF_FORMAT_CHECKDIFF))
                options->recursive = 1;
@@ -1828,6 +1847,9 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
        else if (!strcmp(arg, "--patch-with-raw")) {
                options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_RAW;
        }
+       else if (!strcmp(arg, "--numstat")) {
+               options->output_format |= DIFF_FORMAT_NUMSTAT;
+       }
        else if (!strncmp(arg, "--stat", 6)) {
                char *end;
                int width = options->stat_width;
@@ -2602,7 +2624,7 @@ void diff_flush(struct diff_options *options)
                separator++;
        }
 
-       if (output_format & DIFF_FORMAT_DIFFSTAT) {
+       if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_NUMSTAT)) {
                struct diffstat_t diffstat;
 
                memset(&diffstat, 0, sizeof(struct diffstat_t));
@@ -2612,7 +2634,10 @@ void diff_flush(struct diff_options *options)
                        if (check_pair_status(p))
                                diff_flush_stat(p, options, &diffstat);
                }
-               show_stats(&diffstat, options);
+               if (output_format & DIFF_FORMAT_NUMSTAT)
+                       show_numstat(&diffstat, options);
+               if (output_format & DIFF_FORMAT_DIFFSTAT)
+                       show_stats(&diffstat, options);
                separator++;
        }
 

diff --git a/diff.h b/diff.h
index b48c9914e7e3802d17870bbc0fd68c454fded61c..ce3058e437d5f0142be0746a3e50a3c32045eecb 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -26,20 +26,21 @@ typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
 
 #define DIFF_FORMAT_RAW                0x0001
 #define DIFF_FORMAT_DIFFSTAT   0x0002
-#define DIFF_FORMAT_SUMMARY    0x0004
-#define DIFF_FORMAT_PATCH      0x0008
+#define DIFF_FORMAT_NUMSTAT    0x0004
+#define DIFF_FORMAT_SUMMARY    0x0008
+#define DIFF_FORMAT_PATCH      0x0010
 
 /* These override all above */
-#define DIFF_FORMAT_NAME       0x0010
-#define DIFF_FORMAT_NAME_STATUS        0x0020
-#define DIFF_FORMAT_CHECKDIFF  0x0040
+#define DIFF_FORMAT_NAME       0x0100
+#define DIFF_FORMAT_NAME_STATUS        0x0200
+#define DIFF_FORMAT_CHECKDIFF  0x0400
 
 /* Same as output_format = 0 but we know that -s flag was given
  * and we should not give default value to output_format.
  */
-#define DIFF_FORMAT_NO_OUTPUT  0x0080
+#define DIFF_FORMAT_NO_OUTPUT  0x0800
 
-#define DIFF_FORMAT_CALLBACK   0x0100
+#define DIFF_FORMAT_CALLBACK   0x1000
 
 struct diff_options {
        const char *filter;
@@ -170,6 +171,7 @@ extern void diffcore_std_no_resolve(struct diff_options *);
 "  --patch-with-raw\n" \
 "                output both a patch and the diff-raw format.\n" \
 "  --stat        show diffstat instead of patch.\n" \
+"  --numstat     show numeric diffstat instead of patch.\n" \
 "  --patch-with-stat\n" \
 "                output a patch and prepend its diffstat.\n" \
 "  --name-only   show only names of changed files.\n" \