GIT 1.6.1.3

[git.git] / revision.c

diff --git a/revision.c b/revision.c
index 56b09eb315cc96cb2611fe8497299b293c4783e3..b0651845bf627cdfbd0aeebc4abc6366347b2433 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -11,6 +11,7 @@
 #include "reflog-walk.h"
 #include "patch-ids.h"
 #include "decorate.h"
+#include "log-tree.h"
 
 volatile show_early_output_fn_t show_early_output;
 
@@ -301,6 +302,24 @@ static int rev_compare_tree(struct rev_info *revs, struct commit *parent, struct
 
        if (!t1)
                return REV_TREE_NEW;
+
+       if (revs->simplify_by_decoration) {
+               /*
+                * If we are simplifying by decoration, then the commit
+                * is worth showing if it has a tag pointing at it.
+                */
+               if (lookup_decoration(&name_decoration, &commit->object))
+                       return REV_TREE_DIFFERENT;
+               /*
+                * A commit that is not pointed by a tag is uninteresting
+                * if we are not limited by path.  This means that you will
+                * see the usual "commits that touch the paths" plus any
+                * tagged commit by specifying both --simplify-by-decoration
+                * and pathspec.
+                */
+               if (!revs->prune_data)
+                       return REV_TREE_SAME;
+       }
        if (!t2)
                return REV_TREE_DIFFERENT;
        tree_difference = REV_TREE_SAME;
@@ -976,7 +995,7 @@ static void add_ignore_packed(struct rev_info *revs, const char *name)
        int num = ++revs->num_ignore_packed;
 
        revs->ignore_packed = xrealloc(revs->ignore_packed,
-                                      sizeof(const char **) * (num + 1));
+                                      sizeof(const char *) * (num + 1));
        revs->ignore_packed[num-1] = name;
        revs->ignore_packed[num] = NULL;
 }
@@ -1041,6 +1060,14 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                revs->rewrite_parents = 1;
                revs->simplify_history = 0;
                revs->limited = 1;
+       } else if (!strcmp(arg, "--simplify-by-decoration")) {
+               revs->simplify_merges = 1;
+               revs->rewrite_parents = 1;
+               revs->simplify_history = 0;
+               revs->simplify_by_decoration = 1;
+               revs->limited = 1;
+               revs->prune = 1;
+               load_ref_decorations();
        } else if (!strcmp(arg, "--date-order")) {
                revs->lifo = 0;
                revs->topo_order = 1;
@@ -1236,6 +1263,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 
                        if (!strcmp(arg, "--all")) {
                                handle_refs(revs, flags, for_each_ref);
+                               handle_refs(revs, flags, head_ref);
                                continue;
                        }
                        if (!strcmp(arg, "--branches")) {