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   1#ifndef APPLY_H
   2#define APPLY_H
   3
   4#include "lockfile.h"
   5#include "string-list.h"
   6
   7enum apply_ws_error_action {
   8        nowarn_ws_error,
   9        warn_on_ws_error,
  10        die_on_ws_error,
  11        correct_ws_error
  12};
  13
  14enum apply_ws_ignore {
  15        ignore_ws_none,
  16        ignore_ws_change
  17};
  18
  19enum apply_verbosity {
  20        verbosity_silent = -1,
  21        verbosity_normal = 0,
  22        verbosity_verbose = 1
  23};
  24
  25/*
  26 * We need to keep track of how symlinks in the preimage are
  27 * manipulated by the patches.  A patch to add a/b/c where a/b
  28 * is a symlink should not be allowed to affect the directory
  29 * the symlink points at, but if the same patch removes a/b,
  30 * it is perfectly fine, as the patch removes a/b to make room
  31 * to create a directory a/b so that a/b/c can be created.
  32 *
  33 * See also "struct string_list symlink_changes" in "struct
  34 * apply_state".
  35 */
  36#define APPLY_SYMLINK_GOES_AWAY 01
  37#define APPLY_SYMLINK_IN_RESULT 02
  38
  39struct apply_state {
  40        const char *prefix;
  41
  42        /* Lock file */
  43        struct lock_file lock_file;
  44
  45        /* These control what gets looked at and modified */
  46        int apply; /* this is not a dry-run */
  47        int cached; /* apply to the index only */
  48        int check; /* preimage must match working tree, don't actually apply */
  49        int check_index; /* preimage must match the indexed version */
  50        int update_index; /* check_index && apply */
  51        int ita_only;     /* add intent-to-add entries to the index */
  52
  53        /* These control cosmetic aspect of the output */
  54        int diffstat; /* just show a diffstat, and don't actually apply */
  55        int numstat; /* just show a numeric diffstat, and don't actually apply */
  56        int summary; /* just report creation, deletion, etc, and don't actually apply */
  57
  58        /* These boolean parameters control how the apply is done */
  59        int allow_overlap;
  60        int apply_in_reverse;
  61        int apply_with_reject;
  62        int no_add;
  63        int threeway;
  64        int unidiff_zero;
  65        int unsafe_paths;
  66
  67        /* Other non boolean parameters */
  68        const char *index_file;
  69        enum apply_verbosity apply_verbosity;
  70        const char *fake_ancestor;
  71        const char *patch_input_file;
  72        int line_termination;
  73        struct strbuf root;
  74        int p_value;
  75        int p_value_known;
  76        unsigned int p_context;
  77
  78        /* Exclude and include path parameters */
  79        struct string_list limit_by_name;
  80        int has_include;
  81
  82        /* Various "current state" */
  83        int linenr; /* current line number */
  84        struct string_list symlink_changes; /* we have to track symlinks */
  85
  86        /*
  87         * For "diff-stat" like behaviour, we keep track of the biggest change
  88         * we've seen, and the longest filename. That allows us to do simple
  89         * scaling.
  90         */
  91        int max_change;
  92        int max_len;
  93
  94        /*
  95         * Records filenames that have been touched, in order to handle
  96         * the case where more than one patches touch the same file.
  97         */
  98        struct string_list fn_table;
  99
 100        /*
 101         * This is to save reporting routines before using
 102         * set_error_routine() or set_warn_routine() to install muting
 103         * routines when in verbosity_silent mode.
 104         */
 105        void (*saved_error_routine)(const char *err, va_list params);
 106        void (*saved_warn_routine)(const char *warn, va_list params);
 107
 108        /* These control whitespace errors */
 109        enum apply_ws_error_action ws_error_action;
 110        enum apply_ws_ignore ws_ignore_action;
 111        const char *whitespace_option;
 112        int whitespace_error;
 113        int squelch_whitespace_errors;
 114        int applied_after_fixing_ws;
 115};
 116
 117extern int apply_parse_options(int argc, const char **argv,
 118                               struct apply_state *state,
 119                               int *force_apply, int *options,
 120                               const char * const *apply_usage);
 121extern int init_apply_state(struct apply_state *state,
 122                            const char *prefix);
 123extern void clear_apply_state(struct apply_state *state);
 124extern int check_apply_state(struct apply_state *state, int force_apply);
 125
 126/*
 127 * Some aspects of the apply behavior are controlled by the following
 128 * bits in the "options" parameter passed to apply_all_patches().
 129 */
 130#define APPLY_OPT_INACCURATE_EOF        (1<<0) /* accept inaccurate eof */
 131#define APPLY_OPT_RECOUNT               (1<<1) /* accept inaccurate line count */
 132
 133extern int apply_all_patches(struct apply_state *state,
 134                             int argc,
 135                             const char **argv,
 136                             int options);
 137
 138#endif