diff options
Diffstat (limited to 'builtin/diff-tree.c')
| -rw-r--r-- | builtin/diff-tree.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index e401112045..31d2cb4107 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -1,4 +1,5 @@ #include "cache.h" +#include "config.h" #include "diff.h" #include "commit.h" #include "log-tree.h" @@ -7,7 +8,7 @@ static struct rev_info log_tree_opt; -static int diff_tree_commit_sha1(const struct object_id *oid) +static int diff_tree_commit_oid(const struct object_id *oid) { struct commit *commit = lookup_commit_reference(oid); if (!commit) @@ -49,8 +50,8 @@ static int stdin_diff_trees(struct tree *tree1, const char *p) return -1; printf("%s %s\n", oid_to_hex(&tree1->object.oid), oid_to_hex(&tree2->object.oid)); - diff_tree_sha1(tree1->object.oid.hash, tree2->object.oid.hash, - "", &log_tree_opt.diffopt); + diff_tree_oid(&tree1->object.oid, &tree2->object.oid, + "", &log_tree_opt.diffopt); log_tree_diff_flush(&log_tree_opt); return 0; } @@ -98,13 +99,15 @@ static void diff_tree_tweak_rev(struct rev_info *rev, struct setup_revision_opt int cmd_diff_tree(int argc, const char **argv, const char *prefix) { - int nr_sha1; char line[1000]; struct object *tree1, *tree2; static struct rev_info *opt = &log_tree_opt; struct setup_revision_opt s_r_opt; int read_stdin = 0; + if (argc == 2 && !strcmp(argv[1], "-h")) + usage(diff_tree_usage); + git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ init_revisions(opt, prefix); gitmodules_config(); @@ -128,19 +131,20 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) } /* - * NOTE! We expect "a ^b" to be equal to "a..b", so we - * reverse the order of the objects if the second one - * is marked UNINTERESTING. + * NOTE! We expect "a..b" to expand to "^a b" but it is + * perfectly valid for revision range parser to yield "b ^a", + * which means the same thing. If we get the latter, i.e. the + * second one is marked UNINTERESTING, we recover the original + * order the user gave, i.e. "a..b", by swapping the trees. */ - nr_sha1 = opt->pending.nr; - switch (nr_sha1) { + switch (opt->pending.nr) { case 0: if (!read_stdin) usage(diff_tree_usage); break; case 1: tree1 = opt->pending.objects[0].item; - diff_tree_commit_sha1(&tree1->oid); + diff_tree_commit_oid(&tree1->oid); break; case 2: tree1 = opt->pending.objects[0].item; @@ -148,9 +152,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) if (tree2->flags & UNINTERESTING) { SWAP(tree2, tree1); } - diff_tree_sha1(tree1->oid.hash, - tree2->oid.hash, - "", &opt->diffopt); + diff_tree_oid(&tree1->oid, &tree2->oid, "", &opt->diffopt); log_tree_diff_flush(opt); break; } |