do not write null sha1s to on-disk index

diff --git a/grep.h b/grep.h
index efa8cff980af2b2c06dad080876637d16b5c4985..36e49d8255e2952828f367a0e35d4fcb027d9772 100644 (file)
--- a/grep.h
+++ b/grep.h
@@ -1,6 +1,15 @@
 #ifndef GREP_H
 #define GREP_H
 #include "color.h"
+#ifdef USE_LIBPCRE
+#include <pcre.h>
+#else
+typedef int pcre;
+typedef int pcre_extra;
+#endif
+#include "kwset.h"
+#include "thread-utils.h"
+#include "userdiff.h"
 
 enum grep_pat_token {
        GREP_PATTERN,
@@ -22,6 +31,7 @@ enum grep_header_field {
        GREP_HEADER_AUTHOR = 0,
        GREP_HEADER_COMMITTER
 };
+#define GREP_HEADER_FIELD_MAX (GREP_HEADER_COMMITTER + 1)
 
 struct grep_pat {
        struct grep_pat *next;
@@ -32,6 +42,9 @@ struct grep_pat {
        size_t patternlen;
        enum grep_header_field field;
        regex_t regexp;
+       pcre *pcre_regexp;
+       pcre_extra *pcre_extra_info;
+       kwset_t kws;
        unsigned fixed:1;
        unsigned ignore_case:1;
        unsigned word_regexp:1;
@@ -41,6 +54,7 @@ enum grep_expr_node {
        GREP_NODE_ATOM,
        GREP_NODE_NOT,
        GREP_NODE_AND,
+       GREP_NODE_TRUE,
        GREP_NODE_OR
 };
 
@@ -81,12 +95,14 @@ struct grep_opt {
 #define GREP_BINARY_TEXT       2
        int binary;
        int extended;
+       int pcre;
        int relative;
        int pathname;
        int null_following_name;
        int color;
        int max_depth;
        int funcname;
+       int funcbody;
        char color_context[COLOR_MAXLEN];
        char color_filename[COLOR_MAXLEN];
        char color_function[COLOR_MAXLEN];
@@ -99,6 +115,8 @@ struct grep_opt {
        unsigned post_context;
        unsigned last_shown;
        int show_hunk_mark;
+       int file_break;
+       int heading;
        void *priv;
 
        void (*output)(struct grep_opt *opt, const void *data, size_t size);
@@ -110,9 +128,61 @@ extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const cha
 extern void append_header_grep_pattern(struct grep_opt *, enum grep_header_field, const char *);
 extern void compile_grep_patterns(struct grep_opt *opt);
 extern void free_grep_patterns(struct grep_opt *opt);
-extern int grep_buffer(struct grep_opt *opt, const char *name, char *buf, unsigned long size);
+extern int grep_buffer(struct grep_opt *opt, char *buf, unsigned long size);
+
+struct grep_source {
+       char *name;
+
+       enum grep_source_type {
+               GREP_SOURCE_SHA1,
+               GREP_SOURCE_FILE,
+               GREP_SOURCE_BUF,
+       } type;
+       void *identifier;
+
+       char *buf;
+       unsigned long size;
+
+       struct userdiff_driver *driver;
+};
+
+void grep_source_init(struct grep_source *gs, enum grep_source_type type,
+                     const char *name, const void *identifier);
+int grep_source_load(struct grep_source *gs);
+void grep_source_clear_data(struct grep_source *gs);
+void grep_source_clear(struct grep_source *gs);
+void grep_source_load_driver(struct grep_source *gs);
+int grep_source_is_binary(struct grep_source *gs);
+
+int grep_source(struct grep_opt *opt, struct grep_source *gs);
 
 extern struct grep_opt *grep_opt_dup(const struct grep_opt *opt);
 extern int grep_threads_ok(const struct grep_opt *opt);
 
+#ifndef NO_PTHREADS
+/*
+ * Mutex used around access to the attributes machinery if
+ * opt->use_threads.  Must be initialized/destroyed by callers!
+ */
+extern int grep_use_locks;
+extern pthread_mutex_t grep_attr_mutex;
+extern pthread_mutex_t grep_read_mutex;
+
+static inline void grep_read_lock(void)
+{
+       if (grep_use_locks)
+               pthread_mutex_lock(&grep_read_mutex);
+}
+
+static inline void grep_read_unlock(void)
+{
+       if (grep_use_locks)
+               pthread_mutex_unlock(&grep_read_mutex);
+}
+
+#else
+#define grep_read_lock()
+#define grep_read_unlock()
+#endif
+
 #endif