[PATCH] custom log formats for "diff --submodule=log"
From: Jeff King <hidden>
Date: 2016-06-15 22:55:12
An off-list discussion made me wonder if something like this would be useful: git log -p --submodule=log:' %m %an <%ae>: %s' where the format could be whatever you find useful. I do not use submodules myself, so writing the patch below was just a fun exercise. I'm not planning on polishing it for inclusion. But I thought I would publish it here in case anybody who is more interested feels like picking it up. It would need documentation and tests at the very least. ---
diff --git a/diff.c b/diff.c
index 86e5f2a..f2adaca 100644
--- a/diff.c
+++ b/diff.c@@ -2241,7 +2241,7 @@ static void builtin_diff(const char *name_a, const char *add = diff_get_color_opt(o, DIFF_FILE_NEW); show_submodule_summary(o->file, one ? one->path : two->path, one->sha1, two->sha1, two->dirty_submodule, - del, add, reset); + del, add, reset, o->submodule_log_format); return; }
@@ -3654,8 +3654,13 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac) } else if (!strcmp(arg, "--submodule")) DIFF_OPT_SET(options, SUBMODULE_LOG); else if (!prefixcmp(arg, "--submodule=")) { - if (!strcmp(arg + 12, "log")) + const char *v = arg + 12; + if (!strcmp(v, "log")) DIFF_OPT_SET(options, SUBMODULE_LOG); + else if (!prefixcmp(v, "log:")) { + DIFF_OPT_SET(options, SUBMODULE_LOG); + options->submodule_log_format = xstrdup(v + 4); + } } /* misc options */
diff --git a/diff.h b/diff.h
index a658f85..9726375 100644
--- a/diff.h
+++ b/diff.h@@ -132,6 +132,8 @@ struct diff_options { const char *stat_sep; long xdl_opts; + char *submodule_log_format; + int stat_width; int stat_name_width; int stat_graph_width;
diff --git a/submodule.c b/submodule.c
index e3e0b45..149bd87 100644
--- a/submodule.c
+++ b/submodule.c@@ -217,12 +217,16 @@ static int prepare_submodule_summary(struct rev_info *rev, const char *path, } static void print_submodule_summary(struct rev_info *rev, FILE *f, - const char *del, const char *add, const char *reset) + const char *del, const char *add, const char *reset, + const char *format) { - static const char format[] = " %m %s"; + static const char default_format[] = " %m %s"; struct strbuf sb = STRBUF_INIT; struct commit *commit; + if (!format) + format = default_format; + while ((commit = get_revision(rev))) { struct pretty_print_context ctx = {0}; ctx.date_mode = rev->date_mode;
@@ -259,7 +263,8 @@ int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg) void show_submodule_summary(FILE *f, const char *path, unsigned char one[20], unsigned char two[20], unsigned dirty_submodule, - const char *del, const char *add, const char *reset) + const char *del, const char *add, const char *reset, + const char *format) { struct rev_info rev; struct commit *left = left, *right = right;
@@ -304,7 +309,7 @@ void show_submodule_summary(FILE *f, const char *path, fwrite(sb.buf, sb.len, 1, f); if (!message) { - print_submodule_summary(&rev, f, del, add, reset); + print_submodule_summary(&rev, f, del, add, reset, format); clear_commit_marks(left, ~0); clear_commit_marks(right, ~0); }
diff --git a/submodule.h b/submodule.h
index f2e8271..49a7b75 100644
--- a/submodule.h
+++ b/submodule.h@@ -21,7 +21,8 @@ int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg); void show_submodule_summary(FILE *f, const char *path, unsigned char one[20], unsigned char two[20], unsigned dirty_submodule, - const char *del, const char *add, const char *reset); + const char *del, const char *add, const char *reset, + const char *format); void set_config_fetch_recurse_submodules(int value); void check_for_new_submodule_commits(unsigned char new_sha1[20]); int fetch_populated_submodules(const struct argv_array *options,