From: David Turner <dturner@twopensource.com>
To: git@vger.kernel.org
Cc: David Turner <dturner@twitter.com>
Subject: [PATCH 2/3] sha1_name: get_sha1_with_context learns to follow symlinks
Date: Thu, 14 May 2015 16:17:18 -0400 [thread overview]
Message-ID: <1431634639-4942-3-git-send-email-dturner@twitter.com> (raw)
In-Reply-To: <1431634639-4942-1-git-send-email-dturner@twitter.com>
Wire up get_sha1_with_context to call get_tree_entry_follow_symlinks
when GET_SHA1_FOLLOW_SYMLINKS is passed in flags. G_S_FOLLOW_SYMLINKS
is incompatible with G_S_ONLY_TO_DIE because the diagnosis
that ONLY_TO_DIE triggers does not at present consider symlinks, and
it would be a significant amount of additional code to allow it to
do so.
Signed-off-by: David Turner <dturner@twitter.com>
---
cache.h | 20 +++++++++++++-------
sha1_name.c | 20 +++++++++++++++-----
2 files changed, 28 insertions(+), 12 deletions(-)
diff --git a/cache.h b/cache.h
index 3d3244b..65505d1 100644
--- a/cache.h
+++ b/cache.h
@@ -922,15 +922,21 @@ struct object_context {
unsigned char tree[20];
char path[PATH_MAX];
unsigned mode;
+ /*
+ * symlink_path is only used by get_tree_entry_follow_symlinks,
+ * and only for symlinks that point outside the repository.
+ */
+ struct strbuf symlink_path;
};
-#define GET_SHA1_QUIETLY 01
-#define GET_SHA1_COMMIT 02
-#define GET_SHA1_COMMITTISH 04
-#define GET_SHA1_TREE 010
-#define GET_SHA1_TREEISH 020
-#define GET_SHA1_BLOB 040
-#define GET_SHA1_ONLY_TO_DIE 04000
+#define GET_SHA1_QUIETLY 01
+#define GET_SHA1_COMMIT 02
+#define GET_SHA1_COMMITTISH 04
+#define GET_SHA1_TREE 010
+#define GET_SHA1_TREEISH 020
+#define GET_SHA1_BLOB 040
+#define GET_SHA1_FOLLOW_SYMLINKS 0100
+#define GET_SHA1_ONLY_TO_DIE 04000
extern int get_sha1(const char *str, unsigned char *sha1);
extern int get_sha1_commit(const char *str, unsigned char *sha1);
diff --git a/sha1_name.c b/sha1_name.c
index 6d10f05..0c26515 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -1434,11 +1434,19 @@ static int get_sha1_with_context_1(const char *name,
new_filename = resolve_relative_path(filename);
if (new_filename)
filename = new_filename;
- ret = get_tree_entry(tree_sha1, filename, sha1, &oc->mode);
- if (ret && only_to_die) {
- diagnose_invalid_sha1_path(prefix, filename,
- tree_sha1,
- name, len);
+ if (flags & GET_SHA1_FOLLOW_SYMLINKS) {
+ ret = get_tree_entry_follow_symlinks(tree_sha1,
+ filename, sha1, &oc->symlink_path,
+ &oc->mode);
+ } else {
+ ret = get_tree_entry(tree_sha1, filename,
+ sha1, &oc->mode);
+ if (ret && only_to_die) {
+ diagnose_invalid_sha1_path(prefix,
+ filename,
+ tree_sha1,
+ name, len);
+ }
}
hashcpy(oc->tree, tree_sha1);
strlcpy(oc->path, filename, sizeof(oc->path));
@@ -1469,5 +1477,7 @@ void maybe_die_on_misspelt_object_name(const char *name, const char *prefix)
int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc)
{
+ if (flags & GET_SHA1_FOLLOW_SYMLINKS && flags & GET_SHA1_ONLY_TO_DIE)
+ die("BUG: incompatible flags for get_sha1_with_context");
return get_sha1_with_context_1(str, flags, NULL, sha1, orc);
}
--
2.0.4.315.gad8727a-twtrsrc
next prev parent reply other threads:[~2015-05-14 20:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-14 20:17 [PATCH v10 0/3] David Turner
2015-05-14 20:17 ` [PATCH 1/3] tree-walk: learn get_tree_entry_follow_symlinks David Turner
2015-05-14 20:17 ` David Turner [this message]
2015-05-14 20:17 ` [PATCH 3/3] cat-file: add --follow-symlinks to --batch David Turner
-- strict thread matches above, loose matches on Subject: below --
2015-05-14 21:58 [PATCH v12 0/3] git cat-file --follow-symlinks David Turner
2015-05-14 21:58 ` [PATCH 2/3] sha1_name: get_sha1_with_context learns to follow symlinks David Turner
2015-05-14 20:38 [PATCH v11 0/3] cat-file --follow-symlinks David Turner
2015-05-14 20:38 ` [PATCH 2/3] sha1_name: get_sha1_with_context learns to follow symlinks David Turner
2015-05-13 18:23 [PATCH v9 0/3] David Turner
2015-05-13 18:23 ` [PATCH 2/3] sha1_name: get_sha1_with_context learns to follow symlinks David Turner
2015-05-13 18:21 [PATCH v8 0/3] git cat-file --follow-symlinks David Turner
2015-05-13 18:21 ` [PATCH 2/3] sha1_name: get_sha1_with_context learns to follow symlinks David Turner
2015-05-08 18:13 [PATCH 1/3] tree-walk: learn get_tree_enty_follow_symlinks dturner
2015-05-08 18:13 ` [PATCH 2/3] sha1_name: get_sha1_with_context learns to follow symlinks dturner
2015-05-08 19:45 ` Eric Sunshine
2015-05-08 20:17 ` Junio C Hamano
2015-05-08 20:25 ` Junio C Hamano
2015-05-08 20:39 ` Jeff King
2015-05-08 21:22 ` Junio C Hamano
2015-05-08 20:27 ` David Turner
2015-05-08 20:38 ` Philip Oakley
2015-05-08 21:31 ` Junio C Hamano
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