grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4 #ifdef USE_LIBPCRE1
   5 #include <pcre.h>
   6 #ifdef PCRE_CONFIG_JIT
   7 #if PCRE_MAJOR >= 8 && PCRE_MINOR >= 32
   8 #ifndef NO_LIBPCRE1_JIT
   9 #define GIT_PCRE1_USE_JIT
  10 #define GIT_PCRE_STUDY_JIT_COMPILE PCRE_STUDY_JIT_COMPILE
  11 #endif
  12 #endif
  13 #endif
  14 #ifndef GIT_PCRE_STUDY_JIT_COMPILE
  15 #define GIT_PCRE_STUDY_JIT_COMPILE 0
  16 #endif
  17 #else
  18 typedef int pcre;
  19 typedef int pcre_extra;
  20 #endif
  21 #ifdef USE_LIBPCRE2
  22 #define PCRE2_CODE_UNIT_WIDTH 8
  23 #include <pcre2.h>
  24 #else
  25 typedef int pcre2_code;
  26 typedef int pcre2_match_data;
  27 typedef int pcre2_compile_context;
  28 #endif
  29 #include "thread-utils.h"
  30 #include "userdiff.h"
  31
  32 struct repository;
  33
  34 enum grep_pat_token {
  35         GREP_PATTERN,
  36         GREP_PATTERN_HEAD,
  37         GREP_PATTERN_BODY,
  38         GREP_AND,
  39         GREP_OPEN_PAREN,
  40         GREP_CLOSE_PAREN,
  41         GREP_NOT,
  42         GREP_OR
  43 };
  44
  45 enum grep_context {
  46         GREP_CONTEXT_HEAD,
  47         GREP_CONTEXT_BODY
  48 };
  49
  50 enum grep_header_field {
  51         GREP_HEADER_FIELD_MIN = 0,
  52         GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  53         GREP_HEADER_COMMITTER,
  54         GREP_HEADER_REFLOG,
  55
  56         /* Must be at the end of the enum */
  57         GREP_HEADER_FIELD_MAX
  58 };
  59
  60 enum grep_color {
  61         GREP_COLOR_CONTEXT,
  62         GREP_COLOR_FILENAME,
  63         GREP_COLOR_FUNCTION,
  64         GREP_COLOR_LINENO,
  65         GREP_COLOR_COLUMNNO,
  66         GREP_COLOR_MATCH_CONTEXT,
  67         GREP_COLOR_MATCH_SELECTED,
  68         GREP_COLOR_SELECTED,
  69         GREP_COLOR_SEP,
  70         NR_GREP_COLORS
  71 };
  72
  73 struct grep_pat {
  74         struct grep_pat *next;
  75         const char *origin;
  76         int no;
  77         enum grep_pat_token token;
  78         char *pattern;
  79         size_t patternlen;
  80         enum grep_header_field field;
  81         regex_t regexp;
  82         pcre *pcre1_regexp;
  83         pcre_extra *pcre1_extra_info;
  84         const unsigned char *pcre1_tables;
  85         int pcre1_jit_on;
  86         pcre2_code *pcre2_pattern;
  87         pcre2_match_data *pcre2_match_data;
  88         pcre2_compile_context *pcre2_compile_context;
  89         uint32_t pcre2_jit_on;
  90         unsigned fixed:1;
  91         unsigned is_fixed:1;
  92         unsigned ignore_case:1;
  93         unsigned word_regexp:1;
  94 };
  95
  96 enum grep_expr_node {
  97         GREP_NODE_ATOM,
  98         GREP_NODE_NOT,
  99         GREP_NODE_AND,
 100         GREP_NODE_TRUE,
 101         GREP_NODE_OR
 102 };
 103
 104 enum grep_pattern_type {
 105         GREP_PATTERN_TYPE_UNSPECIFIED = 0,
 106         GREP_PATTERN_TYPE_BRE,
 107         GREP_PATTERN_TYPE_ERE,
 108         GREP_PATTERN_TYPE_FIXED,
 109         GREP_PATTERN_TYPE_PCRE
 110 };
 111
 112 struct grep_expr {
 113         enum grep_expr_node node;
 114         unsigned hit;
 115         union {
 116                 struct grep_pat *atom;
 117                 struct grep_expr *unary;
 118                 struct {
 119                         struct grep_expr *left;
 120                         struct grep_expr *right;
 121                 } binary;
 122         } u;
 123 };
 124
 125 struct grep_opt {
 126         struct grep_pat *pattern_list;
 127         struct grep_pat **pattern_tail;
 128         struct grep_pat *header_list;
 129         struct grep_pat **header_tail;
 130         struct grep_expr *pattern_expression;
 131         struct repository *repo;
 132         const char *prefix;
 133         int prefix_length;
 134         regex_t regexp;
 135         int linenum;
 136         int columnnum;
 137         int invert;
 138         int ignore_case;
 139         int status_only;
 140         int name_only;
 141         int unmatch_name_only;
 142         int count;
 143         int word_regexp;
 144         int fixed;
 145         int all_match;
 146         int debug;
 147 #define GREP_BINARY_DEFAULT     0
 148 #define GREP_BINARY_NOMATCH     1
 149 #define GREP_BINARY_TEXT        2
 150         int binary;
 151         int allow_textconv;
 152         int extended;
 153         int use_reflog_filter;
 154         int pcre1;
 155         int pcre2;
 156         int relative;
 157         int pathname;
 158         int null_following_name;
 159         int only_matching;
 160         int color;
 161         int max_depth;
 162         int funcname;
 163         int funcbody;
 164         int extended_regexp_option;
 165         int pattern_type_option;
 166         int ignore_locale;
 167         char colors[NR_GREP_COLORS][COLOR_MAXLEN];
 168         unsigned pre_context;
 169         unsigned post_context;
 170         unsigned last_shown;
 171         int show_hunk_mark;
 172         int file_break;
 173         int heading;
 174         void *priv;
 175
 176         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 177         void *output_priv;
 178 };
 179
 180 void init_grep_defaults(struct repository *);
 181 int grep_config(const char *var, const char *value, void *);
 182 void grep_init(struct grep_opt *, struct repository *repo, const char *prefix);
 183 void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 184
 185 void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 186 void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 187 void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 188 void compile_grep_patterns(struct grep_opt *opt);
 189 void free_grep_patterns(struct grep_opt *opt);
 190 int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 191
 192 struct grep_source {
 193         char *name;
 194
 195         enum grep_source_type {
 196                 GREP_SOURCE_OID,
 197                 GREP_SOURCE_FILE,
 198                 GREP_SOURCE_BUF,
 199         } type;
 200         void *identifier;
 201
 202         char *buf;
 203         unsigned long size;
 204
 205         char *path; /* for attribute lookups */
 206         struct userdiff_driver *driver;
 207 };
 208
 209 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 210                       const char *name, const char *path,
 211                       const void *identifier);
 212 void grep_source_clear_data(struct grep_source *gs);
 213 void grep_source_clear(struct grep_source *gs);
 214 void grep_source_load_driver(struct grep_source *gs,
 215                              struct index_state *istate);
 216
 217
 218 int grep_source(struct grep_opt *opt, struct grep_source *gs);
 219
 220 struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 221 int grep_threads_ok(const struct grep_opt *opt);
 222
 223 /*
 224  * Mutex used around access to the attributes machinery if
 225  * opt->use_threads.  Must be initialized/destroyed by callers!
 226  */
 227 extern int grep_use_locks;
 228 extern pthread_mutex_t grep_attr_mutex;
 229 extern pthread_mutex_t grep_read_mutex;
 230
 231 static inline void grep_read_lock(void)
 232 {
 233         if (grep_use_locks)
 234                 pthread_mutex_lock(&grep_read_mutex);
 235 }
 236
 237 static inline void grep_read_unlock(void)
 238 {
 239         if (grep_use_locks)
 240                 pthread_mutex_unlock(&grep_read_mutex);
 241 }
 242
 243 #endif