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#ifndef APPLY_H

#define APPLY_H

#include "hash.h"

#include "lockfile.h"

#include "string-list.h"

#include "strmap.h"

struct repository;

enum apply_ws_error_action {

nowarn_ws_error,

warn_on_ws_error,

die_on_ws_error,

correct_ws_error

};

enum apply_ws_ignore {

ignore_ws_none,

ignore_ws_change

};

enum apply_verbosity {

verbosity_silent = -1,

verbosity_normal = 0,

verbosity_verbose = 1

};

struct apply_state {

const char *prefix;

/* Lock file */

struct lock_file lock_file;

/* These control what gets looked at and modified */

int apply; /* this is not a dry-run */

int cached; /* apply to the index only */

int check; /* preimage must match working tree, don't actually apply */

int check_index; /* preimage must match the indexed version */

int update_index; /* check_index && apply */

int ita_only; /* add intent-to-add entries to the index */

/* These control cosmetic aspect of the output */

int diffstat; /* just show a diffstat, and don't actually apply */

int numstat; /* just show a numeric diffstat, and don't actually apply */

int summary; /* just report creation, deletion, etc, and don't actually apply */

/* These boolean parameters control how the apply is done */

int allow_overlap;

int apply_in_reverse;

int apply_with_reject;

int no_add;

int threeway;

int unidiff_zero;

int unsafe_paths;

int allow_empty;

/* Other non boolean parameters */

struct repository *repo;

const char *index_file;

enum apply_verbosity apply_verbosity;

int merge_variant;

char *fake_ancestor;

const char *patch_input_file;

int line_termination;

struct strbuf root;

int p_value;

int p_value_known;

unsigned int p_context;

/* Exclude and include path parameters */

struct string_list limit_by_name;

int has_include;

/* Various "current state" */

int linenr; /* current line number */

* 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.

struct strset removed_symlinks;

struct strset kept_symlinks;

* For "diff-stat" like behaviour, we keep track of the biggest change

* we've seen, and the longest filename. That allows us to do simple

* scaling.

int max_change;

int max_len;

* Records filenames that have been touched, in order to handle

* the case where more than one patches touch the same file.

struct string_list fn_table;

* This is to save reporting routines before using

* set_error_routine() or set_warn_routine() to install muting

* routines when in verbosity_silent mode.

void (*saved_error_routine)(const char *err, va_list params);

void (*saved_warn_routine)(const char *warn, va_list params);

/* These control whitespace errors */

enum apply_ws_error_action ws_error_action;

enum apply_ws_ignore ws_ignore_action;

const char *whitespace_option;

int whitespace_error;

int squelch_whitespace_errors;

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,

const char * const *apply_usage);

int init_apply_state(struct apply_state *state,

struct repository *repo,

const char *prefix);

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);

void release_patch(struct patch *patch);

* Some aspects of the apply behavior are controlled by the following

* bits in the "options" parameter passed to apply_all_patches().

#define APPLY_OPT_INACCURATE_EOF (1<<0) /* accept inaccurate eof */

#define APPLY_OPT_RECOUNT (1<<1) /* accept inaccurate line count */

int apply_all_patches(struct apply_state *state,

int argc, const char **argv,

int options);

#endif

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