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apply: make parse_git_diff_header public

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Make 'parse_git_header()' (renamed to 'parse_git_diff_header()') a
"public" function in apply.h, so we can re-use it in range-diff in a
subsequent commit.  We're renaming the function to make it clearer in
other parts of the codebase that we're talking about a diff header and
not just any header.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Gummerer
2019-07-11 17:08:44 +01:00
committed by Junio C Hamano
parent 80e1841232
commit ef283b3699
2 changed files with 67 additions and 50 deletions
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48
apply.h
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@@ -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().