t4034: abstract away SHA-1-specific constants

[thirdparty/git.git] / apply.h

diff --git a/apply.h b/apply.h
index 59483481330c61033d56e363f70dff08f4d689af..a7951934352cacf9869221a651504973bd4e7f9e 100644 (file)
--- a/apply.h
+++ b/apply.h
@@ -117,6 +117,40 @@ struct apply_state {
        int applied_after_fixing_ws;
 };
 
+/*
+ * This represents a "patch" to a file, both metainfo changes
+ * such as creation/deletion, filemode and content changes represented
+ * as a series of fragments.
+ */
+struct patch {
+       char *new_name, *old_name, *def_name;
+       unsigned int old_mode, new_mode;
+       int is_new, is_delete;  /* -1 = unknown, 0 = false, 1 = true */
+       int rejected;
+       unsigned ws_rule;
+       int lines_added, lines_deleted;
+       int score;
+       int extension_linenr; /* first line specifying delete/new/rename/copy */
+       unsigned int is_toplevel_relative:1;
+       unsigned int inaccurate_eof:1;
+       unsigned int is_binary:1;
+       unsigned int is_copy:1;
+       unsigned int is_rename:1;
+       unsigned int recount:1;
+       unsigned int conflicted_threeway:1;
+       unsigned int direct_to_threeway:1;
+       unsigned int crlf_in_old:1;
+       struct fragment *fragments;
+       char *result;
+       size_t resultsize;
+       char old_oid_prefix[GIT_MAX_HEXSZ + 1];
+       char new_oid_prefix[GIT_MAX_HEXSZ + 1];
+       struct patch *next;
+
+       /* three-way fallback result */
+       struct object_id threeway_stage[3];
+};
+
 int apply_parse_options(int argc, const char **argv,
                        struct apply_state *state,
                        int *force_apply, int *options,
@@ -127,6 +161,20 @@ int init_apply_state(struct apply_state *state,
 void clear_apply_state(struct apply_state *state);
 int check_apply_state(struct apply_state *state, int force_apply);
 
+/*
+ * Parse a git diff header, starting at line.  Fills the relevant
+ * metadata information in 'struct patch'.
+ *
+ * Returns -1 on failure, the length of the parsed header otherwise.
+ */
+int parse_git_diff_header(struct strbuf *root,
+                         int *linenr,
+                         int p_value,
+                         const char *line,
+                         int len,
+                         unsigned int size,
+                         struct patch *patch);
+
 /*
  * Some aspects of the apply behavior are controlled by the following
  * bits in the "options" parameter passed to apply_all_patches().