Add basic log filtering

This enables case-insensitive grep on logentris using the new search box

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 67 insertions, 1 deletions

diff --git a/git.h b/git.h
index 922a167..b1e4828 100644
--- a/git.h
+++ b/git.h
@@ -1,414 +1,480 @@
 #ifndef GIT_H
 #define GIT_H
 
 
 /*
  * from git:git-compat-util.h 
  */
 
 
 #ifndef FLEX_ARRAY
 #if defined(__GNUC__) && (__GNUC__ < 3)
 #define FLEX_ARRAY 0
 #else
 #define FLEX_ARRAY /* empty */
 #endif
 #endif
 
 
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
 #include <errno.h>
 #include <limits.h>
 #include <sys/param.h>
 #include <netinet/in.h>
 #include <sys/types.h>
 #include <dirent.h>
 #include <time.h>
-
+#include <regex.h>
 
 /* On most systems <limits.h> would have given us this, but
  * not on some systems (e.g. GNU/Hurd).
  */
 #ifndef PATH_MAX
 #define PATH_MAX 4096
 #endif
 
 #ifdef __GNUC__
 #define NORETURN __attribute__((__noreturn__))
 #else
 #define NORETURN
 #ifndef __attribute__
 #define __attribute__(x)
 #endif
 #endif
 
 
 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
 
 
 static inline char* xstrdup(const char *str)
 {
         char *ret = strdup(str);
         if (!ret)
                 die("Out of memory, strdup failed");
         return ret;
 }
 
 static inline void *xmalloc(size_t size)
 {
         void *ret = malloc(size);
         if (!ret && !size)
                 ret = malloc(1);
         if (!ret)
                 die("Out of memory, malloc failed");
 #ifdef XMALLOC_POISON
         memset(ret, 0xA5, size);
 #endif
         return ret;
 }
 
 static inline void *xrealloc(void *ptr, size_t size)
 {
         void *ret = realloc(ptr, size);
         if (!ret && !size)
                 ret = realloc(ptr, 1);
         if (!ret)
                 die("Out of memory, realloc failed");
         return ret;
 }
 
 static inline void *xcalloc(size_t nmemb, size_t size)
 {
         void *ret = calloc(nmemb, size);
         if (!ret && (!nmemb || !size))
                 ret = calloc(1, 1);
         if (!ret)
                 die("Out of memory, calloc failed");
         return ret;
 }
 
 static inline ssize_t xread(int fd, void *buf, size_t len)
 {
         ssize_t nr;
         while (1) {
                 nr = read(fd, buf, len);
                 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
                         continue;
                 return nr;
         }
 }
 
 static inline ssize_t xwrite(int fd, const void *buf, size_t len)
 {
         ssize_t nr;
         while (1) {
                 nr = write(fd, buf, len);
                 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
                         continue;
                 return nr;
         }
 }
 
 
 
 
 /*
  * from git:cache.h
  */
 
 
 /* Convert to/from hex/sha1 representation */
 #define MINIMUM_ABBREV 4
 #define DEFAULT_ABBREV 7
 
 extern const unsigned char null_sha1[20];
 
 extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
 
 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
 
 extern int get_sha1(const char *str, unsigned char *sha1);
 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
         extern char *sha1_to_hex(const unsigned char *sha1);/* static buffer result! */
 
 static inline int is_null_sha1(const unsigned char *sha1)
 {
         return !memcmp(sha1, null_sha1, 20);
 }
 static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
 {
         return memcmp(sha1, sha2, 20);
 }
 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
 {
         memcpy(sha_dst, sha_src, 20);
 }
 static inline void hashclr(unsigned char *hash)
 {
         memset(hash, 0, 20);
 }
 
 
+/*
+ * from git:grep.h
+ */
+
+enum grep_pat_token {
+        GREP_PATTERN,
+        GREP_PATTERN_HEAD,
+        GREP_PATTERN_BODY,
+        GREP_AND,
+        GREP_OPEN_PAREN,
+        GREP_CLOSE_PAREN,
+        GREP_NOT,
+        GREP_OR,
+};
+
+enum grep_context {
+        GREP_CONTEXT_HEAD,
+        GREP_CONTEXT_BODY,
+};
+
+struct grep_pat {
+        struct grep_pat *next;
+        const char *origin;
+        int no;
+        enum grep_pat_token token;
+        const char *pattern;
+        regex_t regexp;
+};
+
+enum grep_expr_node {
+        GREP_NODE_ATOM,
+        GREP_NODE_NOT,
+        GREP_NODE_AND,
+        GREP_NODE_OR,
+};
+
+struct grep_opt {
+        struct grep_pat *pattern_list;
+        struct grep_pat **pattern_tail;
+        struct grep_expr *pattern_expression;
+        int prefix_length;
+        regex_t regexp;
+        unsigned linenum:1;
+        unsigned invert:1;
+        unsigned status_only:1;
+        unsigned name_only:1;
+        unsigned unmatch_name_only:1;
+        unsigned count:1;
+        unsigned word_regexp:1;
+        unsigned fixed:1;
+        unsigned all_match:1;
+#define GREP_BINARY_DEFAULT     0
+#define GREP_BINARY_NOMATCH     1
+#define GREP_BINARY_TEXT        2
+        unsigned binary:2;
+        unsigned extended:1;
+        unsigned relative:1;
+        unsigned pathname:1;
+        int regflags;
+        unsigned pre_context;
+        unsigned post_context;
+};
+
+
+extern void compile_grep_patterns(struct grep_opt *opt);
+extern void free_grep_patterns(struct grep_opt *opt);
 
 
 /*
  * from git:object.h 
  */
 
 struct object_list {
         struct object *item;
         struct object_list *next;
 };
 
 struct object_refs {
         unsigned count;
         struct object *base;
         struct object *ref[FLEX_ARRAY]; /* more */
 };
 
 struct object_array {
         unsigned int nr;
         unsigned int alloc;
         struct object_array_entry {
                 struct object *item;
                 const char *name;
         } *objects;
 };
 
 #define TYPE_BITS   3
 #define FLAG_BITS  27
 
 /*
  * The object type is stored in 3 bits.
  */
 struct object {
         unsigned parsed : 1;
         unsigned used : 1;
         unsigned type : TYPE_BITS;
         unsigned flags : FLAG_BITS;
         unsigned char sha1[20];
 };
 
 
 /*
  * from git:tree.h
  */
 
 struct tree {
         struct object object;
         void *buffer;
         unsigned long size;
 };
 
 
 struct tree *lookup_tree(const unsigned char *sha1);
 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size);
 int parse_tree(struct tree *tree);
 struct tree *parse_tree_indirect(const unsigned char *sha1);
 
 typedef int (*read_tree_fn_t)(const unsigned char *, const char *, int, const char *, unsigned int, int);
 
 extern int read_tree_recursive(struct tree *tree,
                                const char *base, int baselen,
                                int stage, const char **match,
                                read_tree_fn_t fn);
 
 extern int read_tree(struct tree *tree, int stage, const char **paths);
 
 
 /* from git:commit.h */
 
 struct commit_list {
         struct commit *item;
         struct commit_list *next;
 };
 
 struct commit {
         struct object object;
         void *util;
         unsigned long date;
         struct commit_list *parents;
         struct tree *tree;
         char *buffer;
 };
 
 
 struct commit *lookup_commit(const unsigned char *sha1);
 struct commit *lookup_commit_reference(const unsigned char *sha1);
 struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
                                               int quiet);
 
 int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
 int parse_commit(struct commit *item);
 
 struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
 struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
 
 void free_commit_list(struct commit_list *list);
 
 void sort_by_date(struct commit_list **list);
 
 /* Commit formats */
 enum cmit_fmt {
         CMIT_FMT_RAW,
         CMIT_FMT_MEDIUM,
         CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
         CMIT_FMT_SHORT,
         CMIT_FMT_FULL,
         CMIT_FMT_FULLER,
         CMIT_FMT_ONELINE,
         CMIT_FMT_EMAIL,
 
         CMIT_FMT_UNSPECIFIED,
 };
 
 extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
 
 
 typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
 typedef void* (*topo_sort_get_fn_t)(struct commit*);
 
 
 
 /*
  * from git:diffcore.h
  */
 
 struct diff_filespec {
         unsigned char sha1[20];
         char *path;
         void *data;
         void *cnt_data;
         unsigned long size;
                 int xfrm_flags;          /* for use by the xfrm */
                 unsigned short mode; /* file mode */
         unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
                                   * if false, use the name and read from
                                   * the filesystem.
                                   */
 #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0)
         unsigned should_free : 1; /* data should be free()'ed */
         unsigned should_munmap : 1; /* data should be munmap()'ed */
 };
 
 struct diff_filepair {
         struct diff_filespec *one;
         struct diff_filespec *two;
         unsigned short int score;
         char status; /* M C R N D U (see Documentation/diff-format.txt) */
         unsigned source_stays : 1; /* all of R/C are copies */
         unsigned broken_pair : 1;
         unsigned renamed_pair : 1;
 };
 
 #define DIFF_PAIR_UNMERGED(p) \
         (!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two))
 
 #define DIFF_PAIR_RENAME(p) ((p)->renamed_pair)
 
 #define DIFF_PAIR_BROKEN(p) \
         ( (!DIFF_FILE_VALID((p)->one) != !DIFF_FILE_VALID((p)->two)) && \
           ((p)->broken_pair != 0) )
 
 #define DIFF_PAIR_TYPE_CHANGED(p) \
         ((S_IFMT & (p)->one->mode) != (S_IFMT & (p)->two->mode))
 
 #define DIFF_PAIR_MODE_CHANGED(p) ((p)->one->mode != (p)->two->mode)
 
 extern void diff_free_filepair(struct diff_filepair *);
 
 extern int diff_unmodified_pair(struct diff_filepair *);
 
 struct diff_queue_struct {
         struct diff_filepair **queue;
         int alloc;
         int nr;
 };
 
 
 /*
  *  from git:diff.h
  */
 
 
 struct rev_info;
 struct diff_options;
 struct diff_queue_struct;
 
 typedef void (*change_fn_t)(struct diff_options *options,
                  unsigned old_mode, unsigned new_mode,
                  const unsigned char *old_sha1,
                  const unsigned char *new_sha1,
                  const char *base, const char *path);
 
 typedef void (*add_remove_fn_t)(struct diff_options *options,
                     int addremove, unsigned mode,
                     const unsigned char *sha1,
                     const char *base, const char *path);
 
 typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
                 struct diff_options *options, void *data);
 
         #define DIFF_FORMAT_RAW         0x0001
         #define DIFF_FORMAT_DIFFSTAT0x0002
         #define DIFF_FORMAT_NUMSTAT0x0004
         #define DIFF_FORMAT_SUMMARY0x0008
         #define DIFF_FORMAT_PATCH0x0010
 
 /* These override all above */
         #define DIFF_FORMAT_NAME0x0100
         #define DIFF_FORMAT_NAME_STATUS0x0200
         #define DIFF_FORMAT_CHECKDIFF0x0400
 
 /* Same as output_format = 0 but we know that -s flag was given
  * and we should not give default value to output_format.
  */
         #define DIFF_FORMAT_NO_OUTPUT0x0800
 
         #define DIFF_FORMAT_CALLBACK0x1000
 
 struct diff_options {
         const char *filter;
         const char *orderfile;
         const char *pickaxe;
         const char *single_follow;
         unsigned recursive:1,
                  tree_in_recursive:1,
                  binary:1,
                  text:1,
                  full_index:1,
                  silent_on_remove:1,
                  find_copies_harder:1,
                  color_diff:1,
                  color_diff_words:1;
         int context;
         int break_opt;
         int detect_rename;
         int line_termination;
         int output_format;
         int pickaxe_opts;
         int rename_score;
         int reverse_diff;
         int rename_limit;
         int setup;
         int abbrev;
         const char *msg_sep;
         const char *stat_sep;
         long xdl_opts;
 
         int stat_width;
         int stat_name_width;
 
         int nr_paths;
         const char **paths;
         int *pathlens;
         change_fn_t change;
         add_remove_fn_t add_remove;
         diff_format_fn_t format_callback;