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graph API: fix bug in graph_is_interesting()

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Previously, graph_is_interesting() did not behave quite the same way as
the code in get_revision().  As a result, it would sometimes think
commits were uninteresting, even though get_revision() would return
them.  This resulted in incorrect lines in the graph output.

This change creates a get_commit_action() function, which
graph_is_interesting() and simplify_commit() both now use to determine
if a commit will be shown.  It is identical to the old simplify_commit()
behavior, except that it never calls rewrite_parents().

This problem was reported by Santi Béjar.  The following command
would exhibit the problem before, but now works correctly:

  git log --graph --simplify-by-decoration --oneline v1.6.3.3

Previously git graph did not display the output for this command
correctly between f29ac4f and 66996ec, among other places.

Signed-off-by: Adam Simpkins <simpkins@facebook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Adam Simpkins
2009-08-18 19:34:33 -07:00
committed by Junio C Hamano
parent 83e355a62c
commit beb5af43a6
4 changed files with 49 additions and 5 deletions
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17
revision.c
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@ -1664,7 +1664,7 @@ static inline int want_ancestry(struct rev_info *revs)
return (revs->rewrite_parents || revs->children.name);
}
enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit)
{
if (commit->object.flags & SHOWN)
return commit_ignore;
@ -1692,12 +1692,23 @@ enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
if (!commit->parents || !commit->parents->next)
return commit_ignore;
}
if (want_ancestry(revs) && rewrite_parents(revs, commit) < 0)
return commit_error;
}
return commit_show;
}
enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
{
enum commit_action action = get_commit_action(revs, commit);
if (action == commit_show &&
!revs->show_all &&
revs->prune && revs->dense && want_ancestry(revs)) {
if (rewrite_parents(revs, commit) < 0)
return commit_error;
}
return action;
}
static struct commit *get_revision_1(struct rev_info *revs)
{
if (!revs->commits)