Introduce 'git-format-patch --suffix=.patch'

The default can also be changed with "format.suffix" configuration.
Leaving it empty would not add any suffix.

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

diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 67425dc0359ee9774200e1a2e12913d570117e7c..23acb47528fc2e3beafe4d85a26152cb718b3e72 100644 (file)
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -11,7 +11,7 @@ SYNOPSIS
 [verse]
 'git-format-patch' [-n | -k] [-o <dir> | --stdout] [--attach] [--thread]
                   [-s | --signoff] [--diff-options] [--start-number <n>]
-                  [--in-reply-to=Message-Id]
+                  [--in-reply-to=Message-Id] [--suffix=.<sfx>]
                   <since>[..<until>]
 
 DESCRIPTION
@@ -78,6 +78,16 @@ OPTIONS
        reply to the given Message-Id, which avoids breaking threads to
        provide a new patch series.
 
+--suffix=.<sfx>::
+       Instead of using `.txt` as the suffix for generated
+       filenames, use specifed suffix.  A common alternative is
+       `--suffix=.patch`.
++
+Note that you would need to include the leading dot `.` if you
+want a filename like `0001-description-of-my-change.patch`, and
+the first letter does not have to be a dot.  Leaving it empty would
+not add any suffix.
+
 CONFIGURATION
 -------------
 You can specify extra mail header lines to be added to each
@@ -86,6 +96,11 @@ message in the repository configuration as follows:
 [format]
         headers = "Organization: git-foo\n"
 
+You can specify default suffix used:
+
+[format]
+        suffix = .patch
+
 
 EXAMPLES
 --------

diff --git a/builtin-log.c b/builtin-log.c
index a59b4acef1bc45f07f15e10c0501aa23de3eed7d..7397a5af07c1bd1889d5c0bc2959060401f48829 100644 (file)
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -197,6 +197,7 @@ static int istitlechar(char c)
 
 static char *extra_headers = NULL;
 static int extra_headers_size = 0;
+static const char *fmt_patch_suffix = ".txt";
 
 static int git_format_config(const char *var, const char *value)
 {
@@ -208,6 +209,12 @@ static int git_format_config(const char *var, const char *value)
                strcat(extra_headers, value);
                return 0;
        }
+       if (!strcmp(var, "format.suffix")) {
+               if (!value)
+                       die("format.suffix without value");
+               fmt_patch_suffix = xstrdup(value);
+               return 0;
+       }
        if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
                return 0;
        }
@@ -223,9 +230,10 @@ static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
        char filename[1024];
        char *sol;
        int len = 0;
+       int suffix_len = strlen(fmt_patch_suffix) + 10; /* ., NUL and slop */
 
        if (output_directory) {
-               strlcpy(filename, output_directory, 1010);
+               strlcpy(filename, output_directory, 1000);
                len = strlen(filename);
                if (filename[len - 1] != '/')
                        filename[len++] = '/';
@@ -249,7 +257,10 @@ static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
                        }
                }
 
-               for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
+               for (j = 0;
+                    len < sizeof(filename) - suffix_len &&
+                            sol[j] && sol[j] != '\n';
+                    j++) {
                        if (istitlechar(sol[j])) {
                                if (space) {
                                        filename[len++] = '-';
@@ -265,7 +276,7 @@ static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
                while (filename[len - 1] == '.' || filename[len - 1] == '-')
                        len--;
        }
-       strcpy(filename + len, ".txt");
+       strcpy(filename + len, fmt_patch_suffix);
        fprintf(realstdout, "%s\n", filename);
        freopen(filename, "w", stdout);
 }
@@ -436,6 +447,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                                die("Need a Message-Id for --in-reply-to");
                        in_reply_to = argv[i];
                }
+               else if (!strncmp(argv[i], "--suffix=", 9))
+                       fmt_patch_suffix = argv[i] + 9;
                else
                        argv[j++] = argv[i];
        }