Merge branch 'nd/negative-pathspec'
[git/git.git] / dir.h
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1#ifndef DIR_H
2#define DIR_H
3
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4/* See Documentation/technical/api-directory-listing.txt */
5
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6#include "strbuf.h"
7
453ec4bd 8struct dir_entry {
e96980ef 9 unsigned int len;
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10 char name[FLEX_ARRAY]; /* more */
11};
12
68492fc7 13#define EXC_FLAG_NODIR 1
68492fc7 14#define EXC_FLAG_ENDSWITH 4
d6b8fc30 15#define EXC_FLAG_MUSTBEDIR 8
84460eec 16#define EXC_FLAG_NEGATIVE 16
68492fc7 17
95a68344 18/*
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19 * Each excludes file will be parsed into a fresh exclude_list which
20 * is appended to the relevant exclude_list_group (either EXC_DIRS or
21 * EXC_FILE). An exclude_list within the EXC_CMDL exclude_list_group
22 * can also be used to represent the list of --exclude values passed
23 * via CLI args.
95a68344 24 */
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25struct exclude_list {
26 int nr;
27 int alloc;
c04318e4 28
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29 /* remember pointer to exclude file contents so we can free() */
30 char *filebuf;
31
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32 /* origin of list, e.g. path to filename, or descriptive string */
33 const char *src;
34
453ec4bd 35 struct exclude {
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36 /*
37 * This allows callers of last_exclude_matching() etc.
38 * to determine the origin of the matching pattern.
39 */
40 struct exclude_list *el;
41
453ec4bd 42 const char *pattern;
68492fc7 43 int patternlen;
f9f6e2ce 44 int nowildcardlen;
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45 const char *base;
46 int baselen;
68492fc7 47 int flags;
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48
49 /*
50 * Counting starts from 1 for line numbers in ignore files,
51 * and from -1 decrementing for patterns from CLI args.
52 */
53 int srcpos;
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54 } **excludes;
55};
56
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57/*
58 * The contents of the per-directory exclude files are lazily read on
59 * demand and then cached in memory, one per exclude_stack struct, in
60 * order to avoid opening and parsing each one every time that
61 * directory is traversed.
62 */
63d285c8 63struct exclude_stack {
95a68344 64 struct exclude_stack *prev; /* the struct exclude_stack for the parent directory */
63d285c8 65 int baselen;
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66 int exclude_ix; /* index of exclude_list within EXC_DIRS exclude_list_group */
67};
68
69struct exclude_list_group {
70 int nr, alloc;
71 struct exclude_list *el;
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72};
73
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74struct dir_struct {
75 int nr, alloc;
2abd31b0 76 int ignored_nr, ignored_alloc;
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77 enum {
78 DIR_SHOW_IGNORED = 1<<0,
79 DIR_SHOW_OTHER_DIRECTORIES = 1<<1,
80 DIR_HIDE_EMPTY_DIRECTORIES = 1<<2,
81 DIR_NO_GITLINKS = 1<<3,
0aaf62b6 82 DIR_COLLECT_IGNORED = 1<<4,
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83 DIR_SHOW_IGNORED_TOO = 1<<5,
84 DIR_COLLECT_KILLED_ONLY = 1<<6
7c4c97c0 85 } flags;
453ec4bd 86 struct dir_entry **entries;
2abd31b0 87 struct dir_entry **ignored;
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88
89 /* Exclude info */
90 const char *exclude_per_dir;
c082df24 91
63d285c8 92 /*
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93 * We maintain three groups of exclude pattern lists:
94 *
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95 * EXC_CMDL lists patterns explicitly given on the command line.
96 * EXC_DIRS lists patterns obtained from per-directory ignore files.
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97 * EXC_FILE lists patterns from fallback ignore files, e.g.
98 * - .git/info/exclude
99 * - core.excludesfile
100 *
101 * Each group contains multiple exclude lists, a single list
102 * per source.
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103 */
104#define EXC_CMDL 0
105#define EXC_DIRS 1
106#define EXC_FILE 2
c082df24 107 struct exclude_list_group exclude_list_group[3];
63d285c8 108
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109 /*
110 * Temporary variables which are used during loading of the
111 * per-directory exclude lists.
112 *
113 * exclude_stack points to the top of the exclude_stack, and
114 * basebuf contains the full path to the current
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115 * (sub)directory in the traversal. Exclude points to the
116 * matching exclude struct if the directory is excluded.
95a68344 117 */
63d285c8 118 struct exclude_stack *exclude_stack;
95c6f271 119 struct exclude *exclude;
63d285c8 120 char basebuf[PATH_MAX];
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121};
122
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123/*
124 * The ordering of these constants is significant, with
125 * higher-numbered match types signifying "closer" (i.e. more
126 * specific) matches which will override lower-numbered match types
127 * when populating the seen[] array.
128 */
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129#define MATCHED_RECURSIVELY 1
130#define MATCHED_FNMATCH 2
131#define MATCHED_EXACTLY 3
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132extern int simple_length(const char *match);
133extern int no_wildcard(const char *string);
827f4d6c 134extern char *common_prefix(const struct pathspec *pathspec);
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135extern int match_pathspec_depth(const struct pathspec *pathspec,
136 const char *name, int namelen,
137 int prefix, char *seen);
bc96cc87 138extern int within_depth(const char *name, int namelen, int depth, int max_depth);
3c6a370b 139
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140extern int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec);
141extern int read_directory(struct dir_struct *, const char *path, int len, const struct pathspec *pathspec);
f8a9d428 142
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143extern int is_excluded_from_list(const char *pathname, int pathlen, const char *basename,
144 int *dtype, struct exclude_list *el);
108da0db 145struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len);
eb41775e 146
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147/*
148 * these implement the matching logic for dir.c:excluded_from_list and
149 * attr.c:path_matches()
150 */
151extern int match_basename(const char *, int,
152 const char *, int, int, int);
153extern int match_pathname(const char *, int,
154 const char *, int,
155 const char *, int, int, int);
156
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157extern struct exclude *last_exclude_matching(struct dir_struct *dir,
158 const char *name, int *dtype);
782cd4c0 159
b07bc8c8 160extern int is_excluded(struct dir_struct *dir, const char *name, int *dtype);
eb41775e 161
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162extern struct exclude_list *add_exclude_list(struct dir_struct *dir,
163 int group_type, const char *src);
cb097534 164extern int add_excludes_from_file_to_list(const char *fname, const char *base, int baselen,
c082df24 165 struct exclude_list *el, int check_index);
453ec4bd 166extern void add_excludes_from_file(struct dir_struct *, const char *fname);
82dce998 167extern void parse_exclude_pattern(const char **string, int *patternlen, int *flags, int *nowildcardlen);
453ec4bd 168extern void add_exclude(const char *string, const char *base,
c04318e4 169 int baselen, struct exclude_list *el, int srcpos);
f6198812 170extern void clear_exclude_list(struct exclude_list *el);
270be816 171extern void clear_directory(struct dir_struct *dir);
c91f0d92 172extern int file_exists(const char *);
453ec4bd 173
e6636747 174extern int is_inside_dir(const char *dir);
9b125da4 175extern int dir_inside_of(const char *subdir, const char *dir);
e6636747 176
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177static inline int is_dot_or_dotdot(const char *name)
178{
179 return (name[0] == '.' &&
180 (name[1] == '\0' ||
181 (name[1] == '.' && name[2] == '\0')));
182}
183
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184extern int is_empty_dir(const char *dir);
185
039bc64e 186extern void setup_standard_excludes(struct dir_struct *dir);
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187
188#define REMOVE_DIR_EMPTY_ONLY 01
189#define REMOVE_DIR_KEEP_NESTED_GIT 02
c844a803 190#define REMOVE_DIR_KEEP_TOPLEVEL 04
a0f4afbe 191extern int remove_dir_recursively(struct strbuf *path, int flag);
7155b727 192
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193/* tries to remove the path with empty directories along it, ignores ENOENT */
194extern int remove_path(const char *path);
195
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196extern int strcmp_icase(const char *a, const char *b);
197extern int strncmp_icase(const char *a, const char *b, size_t count);
198extern int fnmatch_icase(const char *pattern, const char *string, int flags);
199
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200/*
201 * The prefix part of pattern must not contains wildcards.
202 */
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203struct pathspec_item;
204extern int git_fnmatch(const struct pathspec_item *item,
205 const char *pattern, const char *string,
206 int prefix);
5d74762d 207
453ec4bd 208#endif