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authorJason A. Donenfeld <Jason@zx2c4.com>2020-03-12 20:52:35 -0600
committerJason A. Donenfeld <Jason@zx2c4.com>2020-03-13 17:48:34 -0600
commit6a8d6d4b5021af6c90ca0da806691987df449469 (patch)
treedb4984608a96ce279e25c580895d4084d2b1e24f
parent892ba8c3cc0617d2087a2337d8c6e71524d7b49c (diff)
downloadcgit-6a8d6d4b5021af6c90ca0da806691987df449469.tar.gz
cgit-6a8d6d4b5021af6c90ca0da806691987df449469.tar.bz2
global: use proper accessors for maybe_tree
A previous commit changed ->tree to ->maybe_tree throughout, which may have worked at the time, but wasn't safe, because maybe_tree is loaded lazily. This manifested itself in crashes when using the "follow" log feature. The proper fix is to use the correct contextual accessors everytime we want access to maybe_tree. Thankfully, the commit.cocci script takes care of creating mostly-correct patches that we could then fix up, resulting in this commit here. Fixes: 255b78f ("git: update to v2.18.0") Reviewed-by: Christian Hesse <mail@eworm.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-rw-r--r--ui-blame.c6
-rw-r--r--ui-blob.c17
-rw-r--r--ui-commit.c2
-rw-r--r--ui-diff.c4
-rw-r--r--ui-log.c4
-rw-r--r--ui-plain.c7
-rw-r--r--ui-tree.c8
7 files changed, 29 insertions, 19 deletions
diff --git a/ui-blame.c b/ui-blame.c
index 644c30a..f28eea0 100644
--- a/ui-blame.c
+++ b/ui-blame.c
@@ -290,8 +290,10 @@ void cgit_print_blame(void)
walk_tree_ctx.match_baselen = (path_items.match) ?
basedir_len(path_items.match) : -1;
- read_tree_recursive(the_repository, commit->maybe_tree, "", 0, 0,
- &paths, walk_tree, &walk_tree_ctx);
+ read_tree_recursive(the_repository,
+ repo_get_commit_tree(the_repository, commit),
+ "", 0, 0,
+ &paths, walk_tree, &walk_tree_ctx);
if (!walk_tree_ctx.state)
cgit_print_error_page(404, "Not found", "Not found");
else if (walk_tree_ctx.state == 2)
diff --git a/ui-blob.c b/ui-blob.c
index 30e2d4b..f76c641 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -56,8 +56,9 @@ int cgit_ref_path_exists(const char *path, const char *ref, int file_only)
goto done;
if (oid_object_info(the_repository, &oid, &size) != OBJ_COMMIT)
goto done;
- read_tree_recursive(the_repository, lookup_commit_reference(the_repository, &oid)->maybe_tree,
- "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+ read_tree_recursive(the_repository,
+ repo_get_commit_tree(the_repository, lookup_commit_reference(the_repository, &oid)),
+ "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
done:
free(path_items.match);
@@ -91,8 +92,10 @@ int cgit_print_file(char *path, const char *head, int file_only)
type = oid_object_info(the_repository, &oid, &size);
if (type == OBJ_COMMIT) {
commit = lookup_commit_reference(the_repository, &oid);
- read_tree_recursive(the_repository, commit->maybe_tree,
- "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+ read_tree_recursive(the_repository,
+ repo_get_commit_tree(the_repository, commit),
+ "", 0, 0, &paths, walk_tree,
+ &walk_tree_ctx);
if (!walk_tree_ctx.found_path)
return -1;
type = oid_object_info(the_repository, &oid, &size);
@@ -148,8 +151,10 @@ void cgit_print_blob(const char *hex, char *path, const char *head, int file_onl
if ((!hex) && type == OBJ_COMMIT && path) {
commit = lookup_commit_reference(the_repository, &oid);
- read_tree_recursive(the_repository, commit->maybe_tree,
- "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+ read_tree_recursive(the_repository,
+ repo_get_commit_tree(the_repository, commit),
+ "", 0, 0, &paths, walk_tree,
+ &walk_tree_ctx);
type = oid_object_info(the_repository, &oid, &size);
}
diff --git a/ui-commit.c b/ui-commit.c
index 9a47b54..783211f 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -78,7 +78,7 @@ void cgit_print_commit(char *hex, const char *prefix)
html(")</td></tr>\n");
html("<tr><th>tree</th><td colspan='2' class='sha1'>");
tmp = xstrdup(hex);
- cgit_tree_link(oid_to_hex(&commit->maybe_tree->object.oid), NULL, NULL,
+ cgit_tree_link(oid_to_hex(get_commit_tree_oid(commit)), NULL, NULL,
ctx.qry.head, tmp, NULL);
if (prefix) {
html(" /");
diff --git a/ui-diff.c b/ui-diff.c
index c60aefd..329c350 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -413,7 +413,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
"Bad commit: %s", oid_to_hex(new_rev_oid));
return;
}
- new_tree_oid = &commit->maybe_tree->object.oid;
+ new_tree_oid = get_commit_tree_oid(commit);
if (old_rev) {
if (get_oid(old_rev, old_rev_oid)) {
@@ -434,7 +434,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
"Bad commit: %s", oid_to_hex(old_rev_oid));
return;
}
- old_tree_oid = &commit2->maybe_tree->object.oid;
+ old_tree_oid = get_commit_tree_oid(commit2);
} else {
old_tree_oid = NULL;
}
diff --git a/ui-log.c b/ui-log.c
index dc5cb1e..2939c01 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -153,8 +153,8 @@ static int show_commit(struct commit *commit, struct rev_info *revs)
rem_lines = 0;
revs->diffopt.flags.recursive = 1;
- diff_tree_oid(&parent->maybe_tree->object.oid,
- &commit->maybe_tree->object.oid,
+ diff_tree_oid(get_commit_tree_oid(parent),
+ get_commit_tree_oid(commit),
"", &revs->diffopt);
diffcore_std(&revs->diffopt);
diff --git a/ui-plain.c b/ui-plain.c
index b73c1cf..2a7b18c 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -193,13 +193,14 @@ void cgit_print_plain(void)
if (!path_items.match) {
path_items.match = "";
walk_tree_ctx.match_baselen = -1;
- print_dir(&commit->maybe_tree->object.oid, "", 0, "");
+ print_dir(get_commit_tree_oid(commit), "", 0, "");
walk_tree_ctx.match = 2;
}
else
walk_tree_ctx.match_baselen = basedir_len(path_items.match);
- read_tree_recursive(the_repository, commit->maybe_tree,
- "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+ read_tree_recursive(the_repository,
+ repo_get_commit_tree(the_repository, commit),
+ "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
if (!walk_tree_ctx.match)
cgit_print_error_page(404, "Not found", "Not found");
else if (walk_tree_ctx.match == 2)
diff --git a/ui-tree.c b/ui-tree.c
index 84eb17d..1e4efb2 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -370,12 +370,14 @@ void cgit_print_tree(const char *rev, char *path)
walk_tree_ctx.curr_rev = xstrdup(rev);
if (path == NULL) {
- ls_tree(&commit->maybe_tree->object.oid, NULL, &walk_tree_ctx);
+ ls_tree(get_commit_tree_oid(commit), NULL, &walk_tree_ctx);
goto cleanup;
}
- read_tree_recursive(the_repository, commit->maybe_tree, "", 0, 0,
- &paths, walk_tree, &walk_tree_ctx);
+ read_tree_recursive(the_repository,
+ repo_get_commit_tree(the_repository, commit),
+ "", 0, 0,
+ &paths, walk_tree, &walk_tree_ctx);
if (walk_tree_ctx.state == 1)
ls_tail();
else if (walk_tree_ctx.state == 2)