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-rw-r--r--tree-walk.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/tree-walk.h b/tree-walk.h
new file mode 100644
index 0000000000..0089581e1d
--- /dev/null
+++ b/tree-walk.h
@@ -0,0 +1,66 @@
+#ifndef TREE_WALK_H
+#define TREE_WALK_H
+
+struct name_entry {
+ const unsigned char *sha1;
+ const char *path;
+ unsigned int mode;
+};
+
+struct tree_desc {
+ const void *buffer;
+ struct name_entry entry;
+ unsigned int size;
+};
+
+static inline const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pathp, unsigned int *modep)
+{
+ *pathp = desc->entry.path;
+ *modep = canon_mode(desc->entry.mode);
+ return desc->entry.sha1;
+}
+
+static inline int tree_entry_len(const char *name, const unsigned char *sha1)
+{
+ return (const char *)sha1 - name - 1;
+}
+
+void update_tree_entry(struct tree_desc *);
+void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size);
+
+/*
+ * Helper function that does both tree_entry_extract() and update_tree_entry()
+ * and returns true for success
+ */
+int tree_entry(struct tree_desc *, struct name_entry *);
+
+void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);
+
+struct traverse_info;
+typedef int (*traverse_callback_t)(int n, unsigned long mask, unsigned long dirmask, struct name_entry *entry, struct traverse_info *);
+int traverse_trees(int n, struct tree_desc *t, struct traverse_info *info);
+
+struct traverse_info {
+ struct traverse_info *prev;
+ struct name_entry name;
+ int pathlen;
+ struct pathspec *pathspec;
+
+ unsigned long conflicts;
+ traverse_callback_t fn;
+ void *data;
+ int show_all_errors;
+};
+
+int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);
+extern char *make_traverse_path(char *path, const struct traverse_info *info, const struct name_entry *n);
+extern void setup_traverse_info(struct traverse_info *info, const char *base);
+
+static inline int traverse_path_len(const struct traverse_info *info, const struct name_entry *n)
+{
+ return info->pathlen + tree_entry_len(n->path, n->sha1);
+}
+
+extern int tree_entry_interesting(const struct name_entry *, struct strbuf *, int, const struct pathspec *ps);
+
+#endif