grep.h

   1 #ifndef GREP_H
   2 #define GREP_H
   3 #include "color.h"
   4 #ifdef USE_LIBPCRE1
   5 #include <pcre.h>
   6 #ifndef PCRE_NO_UTF8_CHECK
   7 #define PCRE_NO_UTF8_CHECK 0
   8 #endif
   9 #ifdef PCRE_CONFIG_JIT
  10 #if PCRE_MAJOR >= 8 && PCRE_MINOR >= 32
  11 #ifndef NO_LIBPCRE1_JIT
  12 #define GIT_PCRE1_USE_JIT
  13 #define GIT_PCRE_STUDY_JIT_COMPILE PCRE_STUDY_JIT_COMPILE
  14 #endif
  15 #endif
  16 #endif
  17 #ifndef GIT_PCRE_STUDY_JIT_COMPILE
  18 #define GIT_PCRE_STUDY_JIT_COMPILE 0
  19 #endif
  20 #else
  21 typedef int pcre;
  22 typedef int pcre_extra;
  23 #endif
  24 #ifdef USE_LIBPCRE2
  25 #define PCRE2_CODE_UNIT_WIDTH 8
  26 #include <pcre2.h>
  27 #else
  28 typedef int pcre2_code;
  29 typedef int pcre2_match_data;
  30 typedef int pcre2_compile_context;
  31 #endif
  32 #include "thread-utils.h"
  33 #include "userdiff.h"
  34
  35 struct repository;
  36
  37 enum grep_pat_token {
  38         GREP_PATTERN,
  39         GREP_PATTERN_HEAD,
  40         GREP_PATTERN_BODY,
  41         GREP_AND,
  42         GREP_OPEN_PAREN,
  43         GREP_CLOSE_PAREN,
  44         GREP_NOT,
  45         GREP_OR
  46 };
  47
  48 enum grep_context {
  49         GREP_CONTEXT_HEAD,
  50         GREP_CONTEXT_BODY
  51 };
  52
  53 enum grep_header_field {
  54         GREP_HEADER_FIELD_MIN = 0,
  55         GREP_HEADER_AUTHOR = GREP_HEADER_FIELD_MIN,
  56         GREP_HEADER_COMMITTER,
  57         GREP_HEADER_REFLOG,
  58
  59         /* Must be at the end of the enum */
  60         GREP_HEADER_FIELD_MAX
  61 };
  62
  63 enum grep_color {
  64         GREP_COLOR_CONTEXT,
  65         GREP_COLOR_FILENAME,
  66         GREP_COLOR_FUNCTION,
  67         GREP_COLOR_LINENO,
  68         GREP_COLOR_COLUMNNO,
  69         GREP_COLOR_MATCH_CONTEXT,
  70         GREP_COLOR_MATCH_SELECTED,
  71         GREP_COLOR_SELECTED,
  72         GREP_COLOR_SEP,
  73         NR_GREP_COLORS
  74 };
  75
  76 struct grep_pat {
  77         struct grep_pat *next;
  78         const char *origin;
  79         int no;
  80         enum grep_pat_token token;
  81         char *pattern;
  82         size_t patternlen;
  83         enum grep_header_field field;
  84         regex_t regexp;
  85         pcre *pcre1_regexp;
  86         pcre_extra *pcre1_extra_info;
  87         const unsigned char *pcre1_tables;
  88         int pcre1_jit_on;
  89         pcre2_code *pcre2_pattern;
  90         pcre2_match_data *pcre2_match_data;
  91         pcre2_compile_context *pcre2_compile_context;
  92         uint32_t pcre2_jit_on;
  93         unsigned fixed:1;
  94         unsigned is_fixed:1;
  95         unsigned ignore_case:1;
  96         unsigned word_regexp:1;
  97 };
  98
  99 enum grep_expr_node {
 100         GREP_NODE_ATOM,
 101         GREP_NODE_NOT,
 102         GREP_NODE_AND,
 103         GREP_NODE_TRUE,
 104         GREP_NODE_OR
 105 };
 106
 107 enum grep_pattern_type {
 108         GREP_PATTERN_TYPE_UNSPECIFIED = 0,
 109         GREP_PATTERN_TYPE_BRE,
 110         GREP_PATTERN_TYPE_ERE,
 111         GREP_PATTERN_TYPE_FIXED,
 112         GREP_PATTERN_TYPE_PCRE
 113 };
 114
 115 struct grep_expr {
 116         enum grep_expr_node node;
 117         unsigned hit;
 118         union {
 119                 struct grep_pat *atom;
 120                 struct grep_expr *unary;
 121                 struct {
 122                         struct grep_expr *left;
 123                         struct grep_expr *right;
 124                 } binary;
 125         } u;
 126 };
 127
 128 struct grep_opt {
 129         struct grep_pat *pattern_list;
 130         struct grep_pat **pattern_tail;
 131         struct grep_pat *header_list;
 132         struct grep_pat **header_tail;
 133         struct grep_expr *pattern_expression;
 134         struct repository *repo;
 135         const char *prefix;
 136         int prefix_length;
 137         regex_t regexp;
 138         int linenum;
 139         int columnnum;
 140         int invert;
 141         int ignore_case;
 142         int status_only;
 143         int name_only;
 144         int unmatch_name_only;
 145         int count;
 146         int word_regexp;
 147         int fixed;
 148         int all_match;
 149         int debug;
 150 #define GREP_BINARY_DEFAULT     0
 151 #define GREP_BINARY_NOMATCH     1
 152 #define GREP_BINARY_TEXT        2
 153         int binary;
 154         int allow_textconv;
 155         int extended;
 156         int use_reflog_filter;
 157         int pcre1;
 158         int pcre2;
 159         int relative;
 160         int pathname;
 161         int null_following_name;
 162         int only_matching;
 163         int color;
 164         int max_depth;
 165         int funcname;
 166         int funcbody;
 167         int extended_regexp_option;
 168         int pattern_type_option;
 169         int ignore_locale;
 170         char colors[NR_GREP_COLORS][COLOR_MAXLEN];
 171         unsigned pre_context;
 172         unsigned post_context;
 173         unsigned last_shown;
 174         int show_hunk_mark;
 175         int file_break;
 176         int heading;
 177         void *priv;
 178
 179         void (*output)(struct grep_opt *opt, const void *data, size_t size);
 180         void *output_priv;
 181 };
 182
 183 void init_grep_defaults(struct repository *);
 184 int grep_config(const char *var, const char *value, void *);
 185 void grep_init(struct grep_opt *, struct repository *repo, const char *prefix);
 186 void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
 187
 188 void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
 189 void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t);
 190 void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 191 void compile_grep_patterns(struct grep_opt *opt);
 192 void free_grep_patterns(struct grep_opt *opt);
 193 int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
 194
 195 struct grep_source {
 196         char *name;
 197
 198         enum grep_source_type {
 199                 GREP_SOURCE_OID,
 200                 GREP_SOURCE_FILE,
 201                 GREP_SOURCE_BUF,
 202         } type;
 203         void *identifier;
 204
 205         char *buf;
 206         unsigned long size;
 207
 208         char *path; /* for attribute lookups */
 209         struct userdiff_driver *driver;
 210 };
 211
 212 void grep_source_init(struct grep_source *gs, enum grep_source_type type,
 213                       const char *name, const char *path,
 214                       const void *identifier);
 215 void grep_source_clear_data(struct grep_source *gs);
 216 void grep_source_clear(struct grep_source *gs);
 217 void grep_source_load_driver(struct grep_source *gs,
 218                              struct index_state *istate);
 219
 220
 221 int grep_source(struct grep_opt *opt, struct grep_source *gs);
 222
 223 struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 224 int grep_threads_ok(const struct grep_opt *opt);
 225
 226 /*
 227  * Mutex used around access to the attributes machinery if
 228  * opt->use_threads.  Must be initialized/destroyed by callers!
 229  */
 230 extern int grep_use_locks;
 231 extern pthread_mutex_t grep_attr_mutex;
 232 extern pthread_mutex_t grep_read_mutex;
 233
 234 static inline void grep_read_lock(void)
 235 {
 236         if (grep_use_locks)
 237                 pthread_mutex_lock(&grep_read_mutex);
 238 }
 239
 240 static inline void grep_read_unlock(void)
 241 {
 242         if (grep_use_locks)
 243                 pthread_mutex_unlock(&grep_read_mutex);
 244 }
 245
 246 #endif