builtin/apply: move init_apply_state() to apply.c
[git/git.git] / apply.h
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1#ifndef APPLY_H
2#define APPLY_H
3
4enum apply_ws_error_action {
5 nowarn_ws_error,
6 warn_on_ws_error,
7 die_on_ws_error,
8 correct_ws_error
9};
10
11enum apply_ws_ignore {
12 ignore_ws_none,
13 ignore_ws_change
14};
15
16/*
17 * We need to keep track of how symlinks in the preimage are
18 * manipulated by the patches. A patch to add a/b/c where a/b
19 * is a symlink should not be allowed to affect the directory
20 * the symlink points at, but if the same patch removes a/b,
21 * it is perfectly fine, as the patch removes a/b to make room
22 * to create a directory a/b so that a/b/c can be created.
23 *
24 * See also "struct string_list symlink_changes" in "struct
25 * apply_state".
26 */
27#define APPLY_SYMLINK_GOES_AWAY 01
28#define APPLY_SYMLINK_IN_RESULT 02
29
30struct apply_state {
31 const char *prefix;
32 int prefix_length;
33
34 /* These are lock_file related */
35 struct lock_file *lock_file;
36 int newfd;
37
38 /* These control what gets looked at and modified */
39 int apply; /* this is not a dry-run */
40 int cached; /* apply to the index only */
41 int check; /* preimage must match working tree, don't actually apply */
42 int check_index; /* preimage must match the indexed version */
43 int update_index; /* check_index && apply */
44
45 /* These control cosmetic aspect of the output */
46 int diffstat; /* just show a diffstat, and don't actually apply */
47 int numstat; /* just show a numeric diffstat, and don't actually apply */
48 int summary; /* just report creation, deletion, etc, and don't actually apply */
49
50 /* These boolean parameters control how the apply is done */
51 int allow_overlap;
52 int apply_in_reverse;
53 int apply_with_reject;
54 int apply_verbosely;
55 int no_add;
56 int threeway;
57 int unidiff_zero;
58 int unsafe_paths;
59
60 /* Other non boolean parameters */
61 const char *fake_ancestor;
62 const char *patch_input_file;
63 int line_termination;
64 struct strbuf root;
65 int p_value;
66 int p_value_known;
67 unsigned int p_context;
68
69 /* Exclude and include path parameters */
70 struct string_list limit_by_name;
71 int has_include;
72
73 /* Various "current state" */
74 int linenr; /* current line number */
75 struct string_list symlink_changes; /* we have to track symlinks */
76
77 /*
78 * For "diff-stat" like behaviour, we keep track of the biggest change
79 * we've seen, and the longest filename. That allows us to do simple
80 * scaling.
81 */
82 int max_change;
83 int max_len;
84
85 /*
86 * Records filenames that have been touched, in order to handle
87 * the case where more than one patches touch the same file.
88 */
89 struct string_list fn_table;
90
91 /* These control whitespace errors */
92 enum apply_ws_error_action ws_error_action;
93 enum apply_ws_ignore ws_ignore_action;
94 const char *whitespace_option;
95 int whitespace_error;
96 int squelch_whitespace_errors;
97 int applied_after_fixing_ws;
98};
99
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100extern int parse_whitespace_option(struct apply_state *state,
101 const char *option);
102extern int parse_ignorewhitespace_option(struct apply_state *state,
103 const char *option);
104
105extern void init_apply_state(struct apply_state *state,
106 const char *prefix,
107 struct lock_file *lock_file);
108extern void clear_apply_state(struct apply_state *state);
109
71501a71 110#endif