From: Linus Torvalds <torvalds@osdl.org>
To: Junio C Hamano <junkio@cox.net>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 6/8] ls-tree: work from subdirectory.
Date: Sun, 27 Nov 2005 22:48:08 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0511272219420.13959@g5.osdl.org> (raw)
In-Reply-To: <7vpsol1ett.fsf@assigned-by-dhcp.cox.net>
On Sun, 27 Nov 2005, Junio C Hamano wrote:
>
> So it probably is safer to default ls_options to LS_RECURSIVE,
> and use "-d" to restrict it not to recurse.
I have a patch that solves all the problems, I think.
It modifies the selection a bit, so that a pathspec that is a superset of
a particular tree path will always cause it to recurse into that tree.
As an example, let's say that we do
git-ls-tree HEAD drivers/char
_without_ the "-r". What will happen is that it will start out doing all
the base tree, and for "drivers" it will notice that it's a proper subset
of "drivers/char", so it will always recurse into _that_ tree (but not
into other trees).
Then, it will not match anything else than "char" in that subdirectory,
and because that's not a proper superset (it's an exact match), it will
_not_ recurse into it, so you get:
[torvalds@g5 linux]$ ~/git/git-ls-tree HEAD drivers/char
040000 tree 9568cda453aae205bb58983747fa73b9696d9d51 drivers/char
which is what you got with the old git-ls-tree too.
But interestingly, if you add the slash, it will become a proper superset
and it will recurse into _that_ subdirectory (but no deeper: so if you
want all subdirectories _below_ drivers/char/, you still need to give
"-r"):
[torvalds@g5 linux]$ ~/git/git-ls-tree HEAD drivers/char/
100644 blob 2b6b1d772ed776fff87927fc34adc2e40500218e drivers/char/.gitignore
100644 blob 56b8a2e76ab10a5c21787cb7068a846075cbaffd drivers/char/ChangeLog
100644 blob 970f70d498f4c814e1cf3362e33d7e23ac53c299 drivers/char/Kconfig
...
See? This is on top of the previous two diffs, holler if you want a whole
new "everything combined" version..
It hasn't gotten lots of testing, but it should work.
BTW! It fails a few of the tests, but it does so because now, with "-r",
it will never show the tree entries, and because of the difference between
git-ls-tree $tree path
and
git-ls-tree $tree path/
that it didn't use to have (oh, and if you give multiple paths, it will
now always consider them a "union pathspec", not an "iteration of paths").
But I _think_ the new behaviour is pretty useful and while not the same as
"ls", it's perhaps still intuitive enough..
Linus
---
diff --git a/ls-tree.c b/ls-tree.c
index cf0dbbc..4df5830 100644
--- a/ls-tree.c
+++ b/ls-tree.c
@@ -11,7 +11,8 @@
static int line_termination = '\n';
#define LS_RECURSIVE 1
#define LS_TREE_ONLY 2
-static int ls_options = LS_RECURSIVE;
+static int ls_options = 0;
+const char **pathspec;
static const char ls_tree_usage[] =
"git-ls-tree [-d] [-r] [-z] <tree-ish> [path...]";
@@ -21,8 +22,29 @@ static int show_tree(unsigned char *sha1
const char *type = "blob";
if (S_ISDIR(mode)) {
+ const char **s;
if (ls_options & LS_RECURSIVE)
return READ_TREE_RECURSIVE;
+ s = pathspec;
+ if (s) {
+ for (;;) {
+ const char *spec = *s++;
+ int len, speclen;
+
+ if (!spec)
+ break;
+ if (strncmp(base, spec, baselen))
+ continue;
+ len = strlen(pathname);
+ spec += baselen;
+ speclen = strlen(spec);
+ if (speclen <= len)
+ continue;
+ if (memcmp(pathname, spec, len))
+ continue;
+ return READ_TREE_RECURSIVE;
+ }
+ }
type = "tree";
}
@@ -32,7 +54,7 @@ static int show_tree(unsigned char *sha1
int main(int argc, const char **argv)
{
- const char **path, *prefix;
+ const char *prefix;
unsigned char sha1[20];
char *buf;
unsigned long size;
@@ -60,11 +82,11 @@ int main(int argc, const char **argv)
if (get_sha1(argv[1], sha1) < 0)
usage(ls_tree_usage);
- path = get_pathspec(prefix, argv + 2);
+ pathspec = get_pathspec(prefix, argv + 2);
buf = read_object_with_reference(sha1, "tree", &size, NULL);
if (!buf)
die("not a tree object");
- read_tree_recursive(buf, size, "", 0, 0, path, show_tree);
+ read_tree_recursive(buf, size, "", 0, 0, pathspec, show_tree);
return 0;
}
next prev parent reply other threads:[~2005-11-28 6:48 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-20 17:00 Get rid of .git/branches/ and .git/remotes/? Johannes Schindelin
2005-11-20 18:09 ` Linus Torvalds
2005-11-20 18:29 ` Sven Verdoolaege
2005-11-20 19:07 ` Linus Torvalds
2005-11-20 19:16 ` Andreas Ericsson
2005-11-20 19:50 ` Johannes Schindelin
2005-11-26 23:50 ` Petr Baudis
2005-11-27 0:38 ` Junio C Hamano
2005-11-20 23:26 ` Josef Weidendorfer
2005-11-20 23:58 ` Johannes Schindelin
2005-11-22 17:31 ` Josef Weidendorfer
2005-11-22 17:56 ` Johannes Schindelin
2005-11-22 19:30 ` Andreas Ericsson
2005-11-23 15:08 ` Johannes Schindelin
2005-11-23 23:21 ` Junio C Hamano
2005-11-23 23:29 ` Andreas Ericsson
2005-11-23 23:42 ` Johannes Schindelin
2005-11-24 8:05 ` Andreas Ericsson
2005-11-24 8:33 ` Junio C Hamano
2005-11-24 10:36 ` [PATCH] Rename git-config-set to git-repo-config Johannes Schindelin
2005-11-24 11:33 ` Junio C Hamano
2005-11-24 13:28 ` Johannes Schindelin
2005-11-24 21:24 ` Junio C Hamano
2005-11-24 21:54 ` Johannes Schindelin
2005-11-26 2:22 ` Junio C Hamano
2005-11-26 4:05 ` Linus Torvalds
2005-11-26 4:07 ` Linus Torvalds
2005-11-26 9:51 ` [PATCH 0/8] Make C-level operable from subdirectories Junio C Hamano
2005-11-26 10:59 ` Junio C Hamano
2005-11-26 18:44 ` Ryan Anderson
2005-11-27 9:21 ` [PATCH 6/8] ls-tree: work from subdirectory Junio C Hamano
2005-11-27 11:08 ` Petr Baudis
2005-11-27 18:01 ` Linus Torvalds
2005-11-27 18:22 ` Petr Baudis
2005-11-27 19:00 ` Linus Torvalds
2005-11-28 1:07 ` Junio C Hamano
2005-11-28 1:46 ` Linus Torvalds
2005-11-28 6:11 ` Junio C Hamano
2005-11-28 6:48 ` Linus Torvalds [this message]
2005-11-28 8:32 ` Junio C Hamano
2005-11-28 10:51 ` Junio C Hamano
2005-11-28 10:51 ` [PATCH] ls-tree: Resurrect funny name quoting lost during rewrite Junio C Hamano
2005-11-26 5:52 ` [PATCH] Rename git-config-set to git-repo-config Junio C Hamano
2005-11-26 9:56 ` [PATCH 1/8] git-apply: work from subdirectory Junio C Hamano
2005-11-26 17:36 ` Linus Torvalds
2005-11-26 18:54 ` Junio C Hamano
2005-11-27 4:06 ` Junio C Hamano
2005-11-27 14:39 ` Lars Magne Ingebrigtsen
[not found] ` <7vy839dfzk.fsf@assigned-by-dhcp.cox.net>
2005-11-27 21:13 ` Lars Magne Ingebrigtsen
2005-11-27 22:12 ` Junio C Hamano
2005-11-26 9:56 ` [PATCH 2/8] peek-remote: honor proxy config even " Junio C Hamano
2005-11-26 9:56 ` [PATCH 3/8] fsck-objects: work " Junio C Hamano
2005-11-26 9:56 ` [PATCH 4/8] checkout-index: " Junio C Hamano
2005-11-26 9:57 ` [PATCH 5/8] hash-object: work within subdirectory Junio C Hamano
2005-11-26 9:57 ` [PATCH 6/8] ls-tree: work from subdirectory Junio C Hamano
2005-11-26 17:38 ` Linus Torvalds
2005-11-26 9:57 ` [PATCH 7/8] Make networking commands to work from a subdirectory Junio C Hamano
2005-11-26 9:57 ` [PATCH 8/8] Make the rest of commands " Junio C Hamano
2005-11-22 23:05 ` Get rid of .git/branches/ and .git/remotes/? Josef Weidendorfer
2005-11-23 14:53 ` Johannes Schindelin
2005-11-23 15:39 ` Josef Weidendorfer
2005-11-23 17:22 ` Johannes Schindelin
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