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authorJunio C Hamano <gitster@pobox.com>2007-11-19 00:03:24 (GMT)
committerJunio C Hamano <gitster@pobox.com>2007-11-19 00:03:24 (GMT)
commit761e8566cb072047e836f1d7f50d3c0f67d7eb00 (patch)
tree688ad260cda974c7d4f32557c6f84b032eaf557b /revision.c
parente6cb314c087661a535b8873502b6d40cef1bbd57 (diff)
parent7dc0fe3be5c949e83e96a1b829be0e72eafffb47 (diff)
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Merge branch 'lt/rev-list-interactive'
* lt/rev-list-interactive: Fix parent rewriting in --early-output revision walker: mini clean-up Enhance --early-output format Add "--early-output" log flag for interactive GUI use Simplify topo-sort logic
Diffstat (limited to 'revision.c')
-rw-r--r--revision.c125
1 files changed, 82 insertions, 43 deletions
diff --git a/revision.c b/revision.c
index f5b0e83..8f0287f 100644
--- a/revision.c
+++ b/revision.c
@@ -10,6 +10,8 @@
#include "reflog-walk.h"
#include "patch-ids.h"
+volatile show_early_output_fn_t show_early_output;
+
static char *path_name(struct name_path *path, const char *name)
{
struct name_path *p;
@@ -306,15 +308,28 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
struct commit_list **pp, *parent;
int tree_changed = 0, tree_same = 0;
+ /*
+ * If we don't do pruning, everything is interesting
+ */
+ if (!revs->prune)
+ return;
+
if (!commit->tree)
return;
if (!commit->parents) {
- if (!rev_same_tree_as_empty(revs, commit->tree))
- commit->object.flags |= TREECHANGE;
+ if (rev_same_tree_as_empty(revs, commit->tree))
+ commit->object.flags |= TREESAME;
return;
}
+ /*
+ * Normal non-merge commit? If we don't want to make the
+ * history dense, we consider it always to be a change..
+ */
+ if (!revs->dense && !commit->parents->next)
+ return;
+
pp = &commit->parents;
while ((parent = *pp) != NULL) {
struct commit *p = parent->item;
@@ -338,6 +353,7 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
}
parent->next = NULL;
commit->parents = parent;
+ commit->object.flags |= TREESAME;
return;
case REV_TREE_NEW:
@@ -366,7 +382,8 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1));
}
if (tree_changed && !tree_same)
- commit->object.flags |= TREECHANGE;
+ return;
+ commit->object.flags |= TREESAME;
}
static int add_parents_to_list(struct rev_info *revs, struct commit *commit, struct commit_list **list)
@@ -413,8 +430,7 @@ static int add_parents_to_list(struct rev_info *revs, struct commit *commit, str
* simplify the commit history and find the parent
* that has no differences in the path set if one exists.
*/
- if (revs->prune_fn)
- revs->prune_fn(revs, commit);
+ try_to_simplify_commit(revs, commit);
if (revs->no_walk)
return 0;
@@ -533,6 +549,7 @@ static int limit_list(struct rev_info *revs)
struct commit_list *entry = list;
struct commit *commit = list->item;
struct object *obj = &commit->object;
+ show_early_output_fn_t show;
list = list->next;
free(entry);
@@ -550,6 +567,13 @@ static int limit_list(struct rev_info *revs)
if (revs->min_age != -1 && (commit->date > revs->min_age))
continue;
p = &commit_list_insert(commit, p)->next;
+
+ show = show_early_output;
+ if (!show)
+ continue;
+
+ show(revs, newlist);
+ show_early_output = NULL;
}
if (revs->cherry_pick)
cherry_pick_list(newlist, revs);
@@ -674,12 +698,6 @@ void init_revisions(struct rev_info *revs, const char *prefix)
revs->skip_count = -1;
revs->max_count = -1;
- revs->prune_fn = NULL;
- revs->prune_data = NULL;
-
- revs->topo_setter = topo_sort_default_setter;
- revs->topo_getter = topo_sort_default_getter;
-
revs->commit_format = CMIT_FMT_DEFAULT;
diff_setup(&revs->diffopt);
@@ -994,6 +1012,18 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
revs->topo_order = 1;
continue;
}
+ if (!prefixcmp(arg, "--early-output")) {
+ int count = 100;
+ switch (arg[14]) {
+ case '=':
+ count = atoi(arg+15);
+ /* Fallthrough */
+ case 0:
+ revs->topo_order = 1;
+ revs->early_output = count;
+ continue;
+ }
+ }
if (!strcmp(arg, "--parents")) {
revs->parents = 1;
continue;
@@ -1252,7 +1282,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
diff_tree_setup_paths(revs->prune_data, &revs->pruning);
/* Can't prune commits with rename following: the paths change.. */
if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
- revs->prune_fn = try_to_simplify_commit;
+ revs->prune = 1;
if (!revs->full_diff)
diff_tree_setup_paths(revs->prune_data, &revs->diffopt);
}
@@ -1303,9 +1333,7 @@ int prepare_revision_walk(struct rev_info *revs)
if (limit_list(revs) < 0)
return -1;
if (revs->topo_order)
- sort_in_topological_order_fn(&revs->commits, revs->lifo,
- revs->topo_setter,
- revs->topo_getter);
+ sort_in_topological_order(&revs->commits, revs->lifo);
return 0;
}
@@ -1324,7 +1352,9 @@ static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp
return rewrite_one_error;
if (p->parents && p->parents->next)
return rewrite_one_ok;
- if (p->object.flags & (TREECHANGE | UNINTERESTING))
+ if (p->object.flags & UNINTERESTING)
+ return rewrite_one_ok;
+ if (!(p->object.flags & TREESAME))
return rewrite_one_ok;
if (!p->parents)
return rewrite_one_noparents;
@@ -1381,6 +1411,36 @@ static int commit_match(struct commit *commit, struct rev_info *opt)
commit->buffer, strlen(commit->buffer));
}
+enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
+{
+ if (commit->object.flags & SHOWN)
+ return commit_ignore;
+ if (revs->unpacked && has_sha1_pack(commit->object.sha1, revs->ignore_packed))
+ return commit_ignore;
+ if (commit->object.flags & UNINTERESTING)
+ return commit_ignore;
+ if (revs->min_age != -1 && (commit->date > revs->min_age))
+ return commit_ignore;
+ if (revs->no_merges && commit->parents && commit->parents->next)
+ return commit_ignore;
+ if (!commit_match(commit, revs))
+ return commit_ignore;
+ if (revs->prune && revs->dense) {
+ /* Commit without changes? */
+ if (commit->object.flags & TREESAME) {
+ /* drop merges unless we want parenthood */
+ if (!revs->parents)
+ return commit_ignore;
+ /* non-merge - always ignore it */
+ if (!commit->parents || !commit->parents->next)
+ return commit_ignore;
+ }
+ if (revs->parents && rewrite_parents(revs, commit) < 0)
+ return commit_error;
+ }
+ return commit_show;
+}
+
static struct commit *get_revision_1(struct rev_info *revs)
{
if (!revs->commits)
@@ -1408,36 +1468,15 @@ static struct commit *get_revision_1(struct rev_info *revs)
if (add_parents_to_list(revs, commit, &revs->commits) < 0)
return NULL;
}
- if (commit->object.flags & SHOWN)
- continue;
-
- if (revs->unpacked && has_sha1_pack(commit->object.sha1,
- revs->ignore_packed))
- continue;
- if (commit->object.flags & UNINTERESTING)
- continue;
- if (revs->min_age != -1 && (commit->date > revs->min_age))
- continue;
- if (revs->no_merges &&
- commit->parents && commit->parents->next)
- continue;
- if (!commit_match(commit, revs))
+ switch (simplify_commit(revs, commit)) {
+ case commit_ignore:
continue;
- if (revs->prune_fn && revs->dense) {
- /* Commit without changes? */
- if (!(commit->object.flags & TREECHANGE)) {
- /* drop merges unless we want parenthood */
- if (!revs->parents)
- continue;
- /* non-merge - always ignore it */
- if (!commit->parents || !commit->parents->next)
- continue;
- }
- if (revs->parents && rewrite_parents(revs, commit) < 0)
- return NULL;
+ case commit_error:
+ return NULL;
+ default:
+ return commit;
}
- return commit;
} while (revs->commits);
return NULL;
}