grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4 #ifdef USE_LIBPCRE1
   5 #include <pcre.h>
   6 #ifndef NO_LIBPCRE1_JIT
   7 #ifdef PCRE_CONFIG_JIT
   8 #define GIT_PCRE1_USE_JIT
   9 #define GIT_PCRE_STUDY_JIT_COMPILE PCRE_STUDY_JIT_COMPILE
  10 #endif
  11 #endif
  12 #ifndef GIT_PCRE_STUDY_JIT_COMPILE
  13 #define GIT_PCRE_STUDY_JIT_COMPILE 0
  14 #endif
  15 #else
  16 typedef int pcre;
  17 typedef int pcre_extra;
  18 #endif
  19 #ifdef USE_LIBPCRE2
  20 #define PCRE2_CODE_UNIT_WIDTH 8
  21 #include <pcre2.h>
  22 #else
  23 typedef int pcre2_code;
  24 typedef int pcre2_match_data;
  25 typedef int pcre2_compile_context;
  26 #endif
  27 #include "thread-utils.h"
  28 #include "userdiff.h"
  29
  30 struct repository;
  31
  32 enum grep_pat_token {
  33         GREP_PATTERN,
  34         GREP_PATTERN_HEAD,
  35         GREP_PATTERN_BODY,
  36         GREP_AND,
  37         GREP_OPEN_PAREN,
  38         GREP_CLOSE_PAREN,
  39         GREP_NOT,
  40         GREP_OR
  41 };
  42
  43 enum grep_context {
  44         GREP_CONTEXT_HEAD,
  45         GREP_CONTEXT_BODY
  46 };
  47
  48 enum grep_header_field {
  49         GREP_HEADER_FIELD_MIN = 0,
  50         GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  51         GREP_HEADER_COMMITTER,
  52         GREP_HEADER_REFLOG,
  53
  54         /* Must be at the end of the enum */
  55         GREP_HEADER_FIELD_MAX
  56 };
  57
  58 enum grep_color {
  59         GREP_COLOR_CONTEXT,
  60         GREP_COLOR_FILENAME,
  61         GREP_COLOR_FUNCTION,
  62         GREP_COLOR_LINENO,
  63         GREP_COLOR_COLUMNNO,
  64         GREP_COLOR_MATCH_CONTEXT,
  65         GREP_COLOR_MATCH_SELECTED,
  66         GREP_COLOR_SELECTED,
  67         GREP_COLOR_SEP,
  68         NR_GREP_COLORS
  69 };
  70
  71 struct grep_pat {
  72         struct grep_pat *next;
  73         const char *origin;
  74         int no;
  75         enum grep_pat_token token;
  76         char *pattern;
  77         size_t patternlen;
  78         enum grep_header_field field;
  79         regex_t regexp;
  80         pcre *pcre1_regexp;
  81         pcre_extra *pcre1_extra_info;
  82         const unsigned char *pcre1_tables;
  83         int pcre1_jit_on;
  84         pcre2_code *pcre2_pattern;
  85         pcre2_match_data *pcre2_match_data;
  86         pcre2_compile_context *pcre2_compile_context;
  87         uint32_t pcre2_jit_on;
  88         unsigned fixed:1;
  89         unsigned is_fixed:1;
  90         unsigned ignore_case:1;
  91         unsigned word_regexp:1;
  92 };
  93
  94 enum grep_expr_node {
  95         GREP_NODE_ATOM,
  96         GREP_NODE_NOT,
  97         GREP_NODE_AND,
  98         GREP_NODE_TRUE,
  99         GREP_NODE_OR
 100 };
 101
 102 enum grep_pattern_type {
 103         GREP_PATTERN_TYPE_UNSPECIFIED = 0,
 104         GREP_PATTERN_TYPE_BRE,
 105         GREP_PATTERN_TYPE_ERE,
 106         GREP_PATTERN_TYPE_FIXED,
 107         GREP_PATTERN_TYPE_PCRE
 108 };
 109
 110 struct grep_expr {
 111         enum grep_expr_node node;
 112         unsigned hit;
 113         union {
 114                 struct grep_pat *atom;
 115                 struct grep_expr *unary;
 116                 struct {
 117                         struct grep_expr *left;
 118                         struct grep_expr *right;
 119                 } binary;
 120         } u;
 121 };
 122
 123 struct grep_opt {
 124         struct grep_pat *pattern_list;
 125         struct grep_pat **pattern_tail;
 126         struct grep_pat *header_list;
 127         struct grep_pat **header_tail;
 128         struct grep_expr *pattern_expression;
 129         struct repository *repo;
 130         const char *prefix;
 131         int prefix_length;
 132         regex_t regexp;
 133         int linenum;
 134         int columnnum;
 135         int invert;
 136         int ignore_case;
 137         int status_only;
 138         int name_only;
 139         int unmatch_name_only;
 140         int count;
 141         int word_regexp;
 142         int fixed;
 143         int all_match;
 144         int debug;
 145 #define GREP_BINARY_DEFAULT     0
 146 #define GREP_BINARY_NOMATCH     1
 147 #define GREP_BINARY_TEXT        2
 148         int binary;
 149         int allow_textconv;
 150         int extended;
 151         int use_reflog_filter;
 152         int pcre1;
 153         int pcre2;
 154         int relative;
 155         int pathname;
 156         int null_following_name;
 157         int only_matching;
 158         int color;
 159         int max_depth;
 160         int funcname;
 161         int funcbody;
 162         int extended_regexp_option;
 163         int pattern_type_option;
 164         int ignore_locale;
 165         char colors[NR_GREP_COLORS][COLOR_MAXLEN];
 166         unsigned pre_context;
 167         unsigned post_context;
 168         unsigned last_shown;
 169         int show_hunk_mark;
 170         int file_break;
 171         int heading;
 172         void *priv;
 173
 174         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 175         void *output_priv;
 176 };
 177
 178 void init_grep_defaults(struct repository *);
 179 int grep_config(const char *var, const char *value, void *);
 180 void grep_init(struct grep_opt *, struct repository *repo, const char *prefix);
 181 void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 182
 183 void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 184 void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 185 void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 186 void compile_grep_patterns(struct grep_opt *opt);
 187 void free_grep_patterns(struct grep_opt *opt);
 188 int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 189
 190 struct grep_source {
 191         char *name;
 192
 193         enum grep_source_type {
 194                 GREP_SOURCE_OID,
 195                 GREP_SOURCE_FILE,
 196                 GREP_SOURCE_BUF,
 197         } type;
 198         void *identifier;
 199
 200         char *buf;
 201         unsigned long size;
 202
 203         char *path; /* for attribute lookups */
 204         struct userdiff_driver *driver;
 205 };
 206
 207 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 208                       const char *name, const char *path,
 209                       const void *identifier);
 210 void grep_source_clear_data(struct grep_source *gs);
 211 void grep_source_clear(struct grep_source *gs);
 212 void grep_source_load_driver(struct grep_source *gs,
 213                              struct index_state *istate);
 214
 215
 216 int grep_source(struct grep_opt *opt, struct grep_source *gs);
 217
 218 struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 219 int grep_threads_ok(const struct grep_opt *opt);
 220
 221 /*
 222  * Mutex used around access to the attributes machinery if
 223  * opt->use_threads.  Must be initialized/destroyed by callers!
 224  */
 225 extern int grep_use_locks;
 226 extern pthread_mutex_t grep_attr_mutex;
 227 extern pthread_mutex_t grep_read_mutex;
 228
 229 static inline void grep_read_lock(void)
 230 {
 231         if (grep_use_locks)
 232                 pthread_mutex_lock(&grep_read_mutex);
 233 }
 234
 235 static inline void grep_read_unlock(void)
 236 {
 237         if (grep_use_locks)
 238                 pthread_mutex_unlock(&grep_read_mutex);
 239 }
 240
 241 #endif