PATHSPEC_SYMLINK_LEADING_PATH and _STRIP_SUBMODULE_SLASH_EXPENSIVE are
respectively the alternate implementation of
pathspec.c:die_if_path_beyond_symlink() and
pathspec.c:check_path_for_gitlink(). They are intended to replace
those functions when builtin/add.c and builtin/check-ignore.c are
converted to use parse_pathspec.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
pathspec.c | 26 ++++++++++++++++++++++++++
pathspec.h | 10 ++++++++++
2 files changed, 36 insertions(+)
diff --git a/pathspec.c b/pathspec.c
index 1c07c23..e2a4f91 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -214,6 +214,26 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
match[item->len] = '\0';
}
+ if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE)
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ int ce_len = ce_namelen(ce);
+
+ if (!S_ISGITLINK(ce->ce_mode))
+ continue;
+
+ if (item->len <= ce_len || match[ce_len] != '/' ||
+ memcmp(ce->name, match, ce_len))
+ continue;
+ if (item->len == ce_len + 1) {
+ /* strip trailing slash */
+ item->len--;
+ match[item->len] = '\0';
+ } else
+ die (_("Pathspec '%s' is in submodule '%.*s'"),
+ elt, ce_len, ce->name);
+ }
+
if (limit_pathspec_to_literal())
item->nowildcard_len = item->len;
else
@@ -329,6 +349,12 @@ void parse_pathspec(struct pathspec *pathspec,
unsupported_magic(entry,
item[i].magic & magic_mask,
short_magic);
+
+ if ((flags & PATHSPEC_SYMLINK_LEADING_PATH) &&
+ has_symlink_leading_path(item[i].match, item[i].len)) {
+ die(_("pathspec '%s' is beyond a symbolic link"), entry);
+ }
+
if (item[i].nowildcard_len < item[i].len)
pathspec->has_wildcard = 1;
pathspec->magic |= item[i].magic;
diff --git a/pathspec.h b/pathspec.h
index 5144851..450fc03 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -33,6 +33,16 @@ struct pathspec {
#define PATHSPEC_MAXDEPTH_VALID (1<<2) /* max_depth field is valid */
/* strip the trailing slash if the given path is a gitlink */
#define PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP (1<<3)
+/* die if a symlink is part of the given path's directory */
+#define PATHSPEC_SYMLINK_LEADING_PATH (1<<4)
+/*
+ * This is like a combination of ..LEADING_PATH and .._SLASH_CHEAP
+ * (but not the same): it strips the trailing slash if the given path
+ * is a gitlink but also checks and dies if gitlink is part of the
+ * leading path (i.e. the given path goes beyond a submodule). It's
+ * safer than _SLASH_CHEAP and also more expensive.
+ */
+#define PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE (1<<5)
extern int init_pathspec(struct pathspec *, const char **);
extern void parse_pathspec(struct pathspec *pathspec,
--
1.8.2.83.gc99314b
--
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