To libify the apply functionality the 'symlink_changes' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@xxxxxxxxxx>
Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
builtin/apply.c | 50 ++++++++++++++++++++++++++++----------------------
1 file changed, 28 insertions(+), 22 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c
index 47622be..980bb34 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -34,6 +34,20 @@ enum ws_ignore {
ignore_ws_change
};
+/*
+ * We need to keep track of how symlinks in the preimage are
+ * manipulated by the patches. A patch to add a/b/c where a/b
+ * is a symlink should not be allowed to affect the directory
+ * the symlink points at, but if the same patch removes a/b,
+ * it is perfectly fine, as the patch removes a/b to make room
+ * to create a directory a/b so that a/b/c can be created.
+ *
+ * See also "struct string_list symlink_changes" in "struct
+ * apply_state".
+ */
+#define SYMLINK_GOES_AWAY 01
+#define SYMLINK_IN_RESULT 02
+
struct apply_state {
const char *prefix;
int prefix_length;
@@ -75,6 +89,7 @@ struct apply_state {
/* Various "current state" */
int linenr; /* current line number */
+ struct string_list symlink_changes; /* we have to track symlinks */
/*
* For "diff-stat" like behaviour, we keep track of the biggest change
@@ -3702,52 +3717,42 @@ static int check_to_create(struct apply_state *state,
return 0;
}
-/*
- * We need to keep track of how symlinks in the preimage are
- * manipulated by the patches. A patch to add a/b/c where a/b
- * is a symlink should not be allowed to affect the directory
- * the symlink points at, but if the same patch removes a/b,
- * it is perfectly fine, as the patch removes a/b to make room
- * to create a directory a/b so that a/b/c can be created.
- */
-static struct string_list symlink_changes;
-#define SYMLINK_GOES_AWAY 01
-#define SYMLINK_IN_RESULT 02
-
-static uintptr_t register_symlink_changes(const char *path, uintptr_t what)
+static uintptr_t register_symlink_changes(struct apply_state *state,
+ const char *path,
+ uintptr_t what)
{
struct string_list_item *ent;
- ent = string_list_lookup(&symlink_changes, path);
+ ent = string_list_lookup(&state->symlink_changes, path);
if (!ent) {
- ent = string_list_insert(&symlink_changes, path);
+ ent = string_list_insert(&state->symlink_changes, path);
ent->util = (void *)0;
}
ent->util = (void *)(what | ((uintptr_t)ent->util));
return (uintptr_t)ent->util;
}
-static uintptr_t check_symlink_changes(const char *path)
+static uintptr_t check_symlink_changes(struct apply_state *state, const char *path)
{
struct string_list_item *ent;
- ent = string_list_lookup(&symlink_changes, path);
+ ent = string_list_lookup(&state->symlink_changes, path);
if (!ent)
return 0;
return (uintptr_t)ent->util;
}
-static void prepare_symlink_changes(struct patch *patch)
+static void prepare_symlink_changes(struct apply_state *state, struct patch *patch)
{
for ( ; patch; patch = patch->next) {
if ((patch->old_name && S_ISLNK(patch->old_mode)) &&
(patch->is_rename || patch->is_delete))
/* the symlink at patch->old_name is removed */
- register_symlink_changes(patch->old_name, SYMLINK_GOES_AWAY);
+ register_symlink_changes(state, patch->old_name, SYMLINK_GOES_AWAY);
if (patch->new_name && S_ISLNK(patch->new_mode))
/* the symlink at patch->new_name is created or remains */
- register_symlink_changes(patch->new_name, SYMLINK_IN_RESULT);
+ register_symlink_changes(state, patch->new_name, SYMLINK_IN_RESULT);
}
}
@@ -3761,7 +3766,7 @@ static int path_is_beyond_symlink_1(struct apply_state *state, struct strbuf *na
if (!name->len)
break;
name->buf[name->len] = '\0';
- change = check_symlink_changes(name->buf);
+ change = check_symlink_changes(state, name->buf);
if (change & SYMLINK_IN_RESULT)
return 1;
if (change & SYMLINK_GOES_AWAY)
@@ -3930,7 +3935,7 @@ static int check_patch_list(struct apply_state *state, struct patch *patch)
{
int err = 0;
- prepare_symlink_changes(patch);
+ prepare_symlink_changes(state, patch);
prepare_fn_table(state, patch);
while (patch) {
if (state->apply_verbosely)
@@ -4668,6 +4673,7 @@ static void init_apply_state(struct apply_state *state, const char *prefix)
static void clear_apply_state(struct apply_state *state)
{
string_list_clear(&state->limit_by_name, 0);
+ string_list_clear(&state->symlink_changes, 0);
strbuf_release(&state->root);
/* &state->fn_table is cleared at the end of apply_patch() */
--
2.8.3.443.gaeee61e
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