builtin-am: support and auto-detect StGit patches

diff --git a/builtin/log.c b/builtin/log.c
index e67671e37ab51d49424bb9a8945901dc9f9776ed..b50ef7510c721ed4f6c53b619aa60ccf3d3470a9 100644 (file)
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -5,6 +5,7 @@
  *              2006 Junio Hamano
  */
 #include "cache.h"
+#include "refs.h"
 #include "color.h"
 #include "commit.h"
 #include "diff.h"
@@ -31,6 +32,7 @@ static const char *default_date_mode = NULL;
 
 static int default_abbrev_commit;
 static int default_show_root = 1;
+static int default_follow;
 static int decoration_style;
 static int decoration_given;
 static int use_mailmap_config;
@@ -102,6 +104,8 @@ static void cmd_log_init_defaults(struct rev_info *rev)
 {
        if (fmt_pretty)
                get_commit_format(fmt_pretty, rev);
+       if (default_follow)
+               DIFF_OPT_SET(&rev->diffopt, DEFAULT_FOLLOW_RENAMES);
        rev->verbose_header = 1;
        DIFF_OPT_SET(&rev->diffopt, RECURSIVE);
        rev->diffopt.stat_width = -1; /* use full terminal width */
@@ -112,7 +116,7 @@ static void cmd_log_init_defaults(struct rev_info *rev)
        DIFF_OPT_SET(&rev->diffopt, ALLOW_TEXTCONV);
 
        if (default_date_mode)
-               rev->date_mode = parse_date_format(default_date_mode);
+               parse_date_format(default_date_mode, &rev->date_mode);
        rev->diffopt.touched_flags = 0;
 }
 
@@ -390,6 +394,10 @@ static int git_log_config(const char *var, const char *value, void *cb)
                default_show_root = git_config_bool(var, value);
                return 0;
        }
+       if (!strcmp(var, "log.follow")) {
+               default_follow = git_config_bool(var, value);
+               return 0;
+       }
        if (skip_prefix(var, "color.decorate.", &slot_name))
                return parse_decorate_color_config(var, slot_name, value);
        if (!strcmp(var, "log.mailmap")) {
@@ -618,6 +626,14 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix)
        return cmd_log_walk(&rev);
 }
 
+static void default_follow_tweak(struct rev_info *rev,
+                                struct setup_revision_opt *opt)
+{
+       if (DIFF_OPT_TST(&rev->diffopt, DEFAULT_FOLLOW_RENAMES) &&
+           rev->prune_data.nr == 1)
+               DIFF_OPT_SET(&rev->diffopt, FOLLOW_RENAMES);
+}
+
 int cmd_log(int argc, const char **argv, const char *prefix)
 {
        struct rev_info rev;
@@ -631,6 +647,7 @@ int cmd_log(int argc, const char **argv, const char *prefix)
        memset(&opt, 0, sizeof(opt));
        opt.def = "HEAD";
        opt.revarg_opt = REVARG_COMMITTISH;
+       opt.tweak = default_follow_tweak;
        cmd_log_init(argc, argv, prefix, &rev, &opt);
        return cmd_log_walk(&rev);
 }
@@ -795,7 +812,7 @@ static int reopen_stdout(struct commit *commit, const char *subject,
 static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
 {
        struct rev_info check_rev;
-       struct commit *commit;
+       struct commit *commit, *c1, *c2;
        struct object *o1, *o2;
        unsigned flags1, flags2;
 
@@ -803,9 +820,11 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
                die(_("Need exactly one range."));
 
        o1 = rev->pending.objects[0].item;
-       flags1 = o1->flags;
        o2 = rev->pending.objects[1].item;
+       flags1 = o1->flags;
        flags2 = o2->flags;
+       c1 = lookup_commit_reference(o1->sha1);
+       c2 = lookup_commit_reference(o2->sha1);
 
        if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING))
                die(_("Not a range."));
@@ -827,10 +846,8 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
        }
 
        /* reset for next revision walk */
-       clear_commit_marks((struct commit *)o1,
-                       SEEN | UNINTERESTING | SHOWN | ADDED);
-       clear_commit_marks((struct commit *)o2,
-                       SEEN | UNINTERESTING | SHOWN | ADDED);
+       clear_commit_marks(c1, SEEN | UNINTERESTING | SHOWN | ADDED);
+       clear_commit_marks(c2, SEEN | UNINTERESTING | SHOWN | ADDED);
        o1->flags = flags1;
        o2->flags = flags2;
 }
@@ -939,7 +956,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
 
        msg = body;
        pp.fmt = CMIT_FMT_EMAIL;
-       pp.date_mode = DATE_RFC2822;
+       pp.date_mode.type = DATE_RFC2822;
        pp_user_info(&pp, NULL, &sb, committer, encoding);
        pp_title_line(&pp, &msg, &sb, encoding, need_8bit_cte);
        pp_remainder(&pp, &msg, &sb, 0);