diff-delta: set size out-parameter to 0 for NULL delta

diff --git a/builtin/log.c b/builtin/log.c
index e63c8c2958276d17793ecc0cb15ed8945ee6caf6..44b10b3415414c0723ace29d9defb62c1354e9d6 100644 (file)
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -47,7 +47,7 @@ static int default_follow;
 static int default_show_signature;
 static int decoration_style;
 static int decoration_given;
-static int use_mailmap_config;
+static int use_mailmap_config = 1;
 static const char *fmt_patch_subject_prefix = "PATCH";
 static const char *fmt_pretty;
 
@@ -63,9 +63,14 @@ struct line_opt_callback_data {
        struct string_list args;
 };
 
+static int session_is_interactive(void)
+{
+       return isatty(1) || pager_in_use();
+}
+
 static int auto_decoration_style(void)
 {
-       return (isatty(1) || pager_in_use()) ? DECORATE_SHORT_REFS : 0;
+       return session_is_interactive() ? DECORATE_SHORT_REFS : 0;
 }
 
 static int parse_decoration_style(const char *value)
@@ -155,7 +160,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
                         struct rev_info *rev, struct setup_revision_opt *opt)
 {
        struct userformat_want w;
-       int quiet = 0, source = 0, mailmap = 0;
+       int quiet = 0, source = 0, mailmap;
        static struct line_opt_callback_data line_cb = {NULL, NULL, STRING_LIST_INIT_DUP};
        static struct string_list decorate_refs_exclude = STRING_LIST_INIT_NODUP;
        static struct string_list decorate_refs_include = STRING_LIST_INIT_NODUP;
@@ -251,7 +256,7 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
  * This gives a rough estimate for how many commits we
  * will print out in the list.
  */
-static int estimate_commit_count(struct rev_info *rev, struct commit_list *list)
+static int estimate_commit_count(struct commit_list *list)
 {
        int n = 0;
 
@@ -289,7 +294,7 @@ static void log_show_early(struct rev_info *revs, struct commit_list *list)
                switch (simplify_commit(revs, commit)) {
                case commit_show:
                        if (show_header) {
-                               int n = estimate_commit_count(revs, list);
+                               int n = estimate_commit_count(list);
                                show_early_header(revs, "incomplete", n);
                                show_header = 0;
                        }
@@ -333,7 +338,7 @@ static void early_output(int signal)
        show_early_output = log_show_early;
 }
 
-static void setup_early_output(struct rev_info *rev)
+static void setup_early_output(void)
 {
        struct sigaction sa;
 
@@ -364,7 +369,7 @@ static void setup_early_output(struct rev_info *rev)
 
 static void finish_early_output(struct rev_info *rev)
 {
-       int n = estimate_commit_count(rev, rev->commits);
+       int n = estimate_commit_count(rev->commits);
        signal(SIGALRM, SIG_IGN);
        show_early_header(rev, "done", n);
 }
@@ -376,7 +381,7 @@ static int cmd_log_walk(struct rev_info *rev)
        int saved_dcctc = 0, close_file = rev->diffopt.close_file;
 
        if (rev->early_output)
-               setup_early_output(rev);
+               setup_early_output();
 
        if (prepare_revision_walk(rev))
                die(_("revision walk setup failed"));
@@ -490,7 +495,7 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix)
        return cmd_log_walk(&rev);
 }
 
-static void show_tagger(char *buf, int len, struct rev_info *rev)
+static void show_tagger(const char *buf, struct rev_info *rev)
 {
        struct strbuf out = STRBUF_INIT;
        struct pretty_print_context pp = {0};
@@ -546,11 +551,11 @@ static int show_tag_object(const struct object_id *oid, struct rev_info *rev)
        assert(type == OBJ_TAG);
        while (offset < size && buf[offset] != '\n') {
                int new_offset = offset + 1;
+               const char *ident;
                while (new_offset < size && buf[new_offset++] != '\n')
                        ; /* do nothing */
-               if (starts_with(buf + offset, "tagger "))
-                       show_tagger(buf + offset + 7,
-                                   new_offset - offset - 7, rev);
+               if (skip_prefix(buf + offset, "tagger ", &ident))
+                       show_tagger(ident, rev);
                offset = new_offset;
        }
 
@@ -779,6 +784,8 @@ enum {
 
 static int git_format_config(const char *var, const char *value, void *cb)
 {
+       struct rev_info *rev = cb;
+
        if (!strcmp(var, "format.headers")) {
                if (!value)
                        die(_("format.headers without value"));
@@ -864,6 +871,22 @@ static int git_format_config(const char *var, const char *value, void *cb)
                        from = NULL;
                return 0;
        }
+       if (!strcmp(var, "format.notes")) {
+               struct strbuf buf = STRBUF_INIT;
+               int b = git_parse_maybe_bool(value);
+               if (!b)
+                       return 0;
+               rev->show_notes = 1;
+               if (b < 0) {
+                       strbuf_addstr(&buf, value);
+                       expand_notes_ref(&buf);
+                       string_list_append(&rev->notes_opt.extra_notes_refs,
+                                       strbuf_detach(&buf, NULL));
+               } else {
+                       rev->notes_opt.use_default_notes = 1;
+               }
+               return 0;
+       }
 
        return git_log_config(var, value, cb);
 }
@@ -1435,7 +1458,7 @@ static void prepare_bases(struct base_tree_info *bases,
                struct object_id *patch_id;
                if (*commit_base_at(&commit_base, commit))
                        continue;
-               if (commit_patch_id(commit, &diffopt, &oid, 0))
+               if (commit_patch_id(commit, &diffopt, &oid, 0, 1))
                        die(_("cannot get patch id"));
                ALLOC_GROW(bases->patch_id, bases->nr_patch_id + 1, bases->alloc_patch_id);
                patch_id = bases->patch_id + bases->nr_patch_id;
@@ -1617,8 +1640,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        extra_to.strdup_strings = 1;
        extra_cc.strdup_strings = 1;
        init_log_defaults();
-       git_config(git_format_config, NULL);
        repo_init_revisions(the_repository, &rev, prefix);
+       git_config(git_format_config, &rev);
        rev.commit_format = CMIT_FMT_EMAIL;
        rev.expand_tabs_in_log_default = 0;
        rev.verbose_header = 1;