revision.c: use commit-slab for show_source

Instead of relying on commit->util to store the source string, let the
user provide a commit-slab to store the source strings in.

It's done so that commit->util can be removed. See more explanation in
the commit that removes commit->util.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 530df12f05be0e3331347d0a76306d0caa394744..5aaf5c8e59cf19dab157d655d680e09ea92d6d43 100644 (file)
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -21,6 +21,7 @@
 #include "quote.h"
 #include "remote.h"
 #include "blob.h"
+#include "commit-slab.h"
 
 static const char *fast_export_usage[] = {
        N_("git fast-export [rev-list-opts]"),
@@ -38,6 +39,7 @@ static struct string_list extra_refs = STRING_LIST_INIT_NODUP;
 static struct refspec *refspecs;
 static int refspecs_nr;
 static int anonymize;
+static struct revision_sources revision_sources;
 
 static int parse_opt_signed_tag_mode(const struct option *opt,
                                     const char *arg, int unset)
@@ -590,7 +592,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
                if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode))
                        export_blob(&diff_queued_diff.queue[i]->two->oid);
 
-       refname = commit->util;
+       refname = *revision_sources_at(&revision_sources, commit);
        if (anonymize) {
                refname = anonymize_refname(refname);
                anonymize_ident_line(&committer, &committer_end);
@@ -862,10 +864,11 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info)
                 * This ref will not be updated through a commit, lets make
                 * sure it gets properly updated eventually.
                 */
-               if (commit->util || commit->object.flags & SHOWN)
+               if (*revision_sources_at(&revision_sources, commit) ||
+                   commit->object.flags & SHOWN)
                        string_list_append(&extra_refs, full_name)->util = commit;
-               if (!commit->util)
-                       commit->util = full_name;
+               if (!*revision_sources_at(&revision_sources, commit))
+                       *revision_sources_at(&revision_sources, commit) = full_name;
        }
 }
 
@@ -1029,8 +1032,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
        git_config(git_default_config, NULL);
 
        init_revisions(&revs, prefix);
+       init_revision_sources(&revision_sources);
        revs.topo_order = 1;
-       revs.show_source = 1;
+       revs.sources = &revision_sources;
        revs.rewrite_parents = 1;
        argc = parse_options(argc, argv, prefix, options, fast_export_usage,
                        PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN);

diff --git a/builtin/log.c b/builtin/log.c
index 71f68a3e4f59d987c653fb8f32a4d8770e9c6654..d017e5747544f0c66630e56faf4b72e853820ed8 100644 (file)
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -148,6 +148,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
        static struct string_list decorate_refs_include = STRING_LIST_INIT_NODUP;
        struct decoration_filter decoration_filter = {&decorate_refs_include,
                                                      &decorate_refs_exclude};
+       static struct revision_sources revision_sources;
 
        const struct option builtin_log_options[] = {
                OPT__QUIET(&quiet, N_("suppress diff output")),
@@ -194,8 +195,10 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
            rev->diffopt.filter || rev->diffopt.flags.follow_renames)
                rev->always_show_header = 0;
 
-       if (source)
-               rev->show_source = 1;
+       if (source) {
+               init_revision_sources(&revision_sources);
+               rev->sources = &revision_sources;
+       }
 
        if (mailmap) {
                rev->mailmap = xcalloc(1, sizeof(struct string_list));

diff --git a/log-tree.c b/log-tree.c
index d1c0bedf244fce0c8894175bf800384c0474b312..0b41ee32350ab1dd406ecdb19a4e4882d79682b9 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -295,8 +295,12 @@ void show_decorations(struct rev_info *opt, struct commit *commit)
 {
        struct strbuf sb = STRBUF_INIT;
 
-       if (opt->show_source && commit->util)
-               fprintf(opt->diffopt.file, "\t%s", (char *) commit->util);
+       if (opt->sources) {
+               char **slot = revision_sources_peek(opt->sources, commit);
+
+               if (slot && *slot)
+                       fprintf(opt->diffopt.file, "\t%s", *slot);
+       }
        if (!opt->show_decorations)
                return;
        format_decorations(&sb, commit, opt->diffopt.use_color);

diff --git a/revision.c b/revision.c
index 1cff11833e7e2ce64114e4d18339d6ae21ec80e8..be8fe7d67b1ee417c310943ea04d88efa3072470 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -29,6 +29,8 @@ volatile show_early_output_fn_t show_early_output;
 static const char *term_bad;
 static const char *term_good;
 
+implement_shared_commit_slab(revision_sources, char *);
+
 void show_object_with_name(FILE *out, struct object *obj, const char *name)
 {
        const char *p;
@@ -255,14 +257,19 @@ static struct commit *handle_commit(struct rev_info *revs,
         */
        if (object->type == OBJ_COMMIT) {
                struct commit *commit = (struct commit *)object;
+
                if (parse_commit(commit) < 0)
                        die("unable to parse commit %s", name);
                if (flags & UNINTERESTING) {
                        mark_parents_uninteresting(commit);
                        revs->limited = 1;
                }
-               if (revs->show_source && !commit->util)
-                       commit->util = xstrdup(name);
+               if (revs->sources) {
+                       char **slot = revision_sources_at(revs->sources, commit);
+
+                       if (!*slot)
+                               *slot = xstrdup(name);
+               }
                return commit;
        }
 
@@ -814,8 +821,12 @@ static int add_parents_to_list(struct rev_info *revs, struct commit *commit,
                        }
                        return -1;
                }
-               if (revs->show_source && !p->util)
-                       p->util = commit->util;
+               if (revs->sources) {
+                       char **slot = revision_sources_at(revs->sources, p);
+
+                       if (!*slot)
+                               *slot = *revision_sources_at(revs->sources, commit);
+               }
                p->object.flags |= left_flag;
                if (!(p->object.flags & SEEN)) {
                        p->object.flags |= SEEN;

diff --git a/revision.h b/revision.h
index b8c47b98e22562ef320197b4ddbc8f0c3ee40f98..bf2239f87689d9486c4b888bed5cba6affa21953 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -6,6 +6,7 @@
 #include "notes.h"
 #include "pretty.h"
 #include "diff.h"
+#include "commit-slab-decl.h"
 
 /* Remember to update object flag allocation in object.h */
 #define SEEN           (1u<<0)
@@ -29,6 +30,7 @@ struct rev_info;
 struct log_info;
 struct string_list;
 struct saved_parents;
+define_shared_commit_slab(revision_sources, char *);
 
 struct rev_cmdline_info {
        unsigned int nr;
@@ -111,7 +113,6 @@ struct rev_info {
                        right_only:1,
                        rewrite_parents:1,
                        print_parents:1,
-                       show_source:1,
                        show_decorations:1,
                        reverse:1,
                        reverse_output_stage:1,
@@ -224,6 +225,8 @@ struct rev_info {
 
        struct commit_list *previous_parents;
        const char *break_bar;
+
+       struct revision_sources *sources;
 };
 
 extern int ref_excluded(struct string_list *, const char *path);