4 files changed, 83 insertions, 7 deletions

diff --git a/cgit.c b/cgit.c
index 277b849..fba97d7 100644
--- a/cgit.c
+++ b/cgit.c
@@ -3,54 +3,57 @@
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 const char cgit_version[] = CGIT_VERSION;
 
 static void cgit_print_repo_page(struct cacheitem *item)
 {
         if (chdir(fmt("%s/%s", cgit_root, cgit_query_repo)) || 
             cgit_read_config("info/cgit", cgit_repo_config_cb)) {
                 char *title = fmt("%s - %s", cgit_root_title, "Bad request");
                 cgit_print_docstart(title, item);
                 cgit_print_pageheader(title, 0);
                 cgit_print_error(fmt("Unable to scan repository: %s",
                                      strerror(errno)));
                 cgit_print_docend();
                 return;
         }
         setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
         char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
+        int show_search = 0;
+        if (cgit_query_page && !strcmp(cgit_query_page, "log"))
+                show_search = 1;
         cgit_print_docstart(title, item);
-        cgit_print_pageheader(title, 0);
+        cgit_print_pageheader(title, show_search);
         if (!cgit_query_page) {
                 cgit_print_summary();
         } else if (!strcmp(cgit_query_page, "log")) {
-                cgit_print_log(cgit_query_head, cgit_query_ofs, 100);
+                cgit_print_log(cgit_query_head, cgit_query_ofs, 100, cgit_query_search);
         } else if (!strcmp(cgit_query_page, "tree")) {
                 cgit_print_tree(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "commit")) {
                 cgit_print_commit(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "view")) {
                 cgit_print_view(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "diff")) {
                 cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
         }
         cgit_print_docend();
 }
 
 static void cgit_fill_cache(struct cacheitem *item)
 {
         static char buf[PATH_MAX];
 
         getcwd(buf, sizeof(buf));
         htmlfd = item->fd;
         item->st.st_mtime = time(NULL);
         if (cgit_query_repo)
                 cgit_print_repo_page(item);
         else
                 cgit_print_repolist(item);
         chdir(buf);
diff --git a/cgit.h b/cgit.h
index e114a50..249650e 100644
--- a/cgit.h
+++ b/cgit.h
@@ -83,31 +83,31 @@ extern void html_filemode(unsigned short mode);
 
 extern int cgit_read_config(const char *filename, configfn fn);
 extern int cgit_parse_query(char *txt, configfn fn);
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
 
 extern void cache_prepare(struct cacheitem *item);
 extern int cache_lock(struct cacheitem *item);
 extern int cache_unlock(struct cacheitem *item);
 extern int cache_cancel_lock(struct cacheitem *item);
 extern int cache_exist(struct cacheitem *item);
 extern int cache_expired(struct cacheitem *item);
 
 extern char *cgit_repourl(const char *reponame);
 extern char *cgit_pageurl(const char *reponame, const char *pagename, 
                           const char *query);
 
 extern void cgit_print_error(char *msg);
 extern void cgit_print_date(unsigned long secs);
 extern void cgit_print_docstart(char *title, struct cacheitem *item);
 extern void cgit_print_docend();
 extern void cgit_print_pageheader(char *title, int show_search);
 
 extern void cgit_print_repolist(struct cacheitem *item);
 extern void cgit_print_summary();
-extern void cgit_print_log(const char *tip, int ofs, int cnt);
+extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep);
 extern void cgit_print_view(const char *hex);
 extern void cgit_print_tree(const char *hex);
 extern void cgit_print_commit(const char *hex);
 extern void cgit_print_diff(const char *old_hex, const char *new_hex);
 
 #endif /* CGIT_H */
diff --git a/git.h b/git.h
index 922a167..b1e4828 100644
--- a/git.h
+++ b/git.h
@@ -10,49 +10,49 @@
 #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);
@@ -135,48 +135,114 @@ 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;
diff --git a/ui-log.c b/ui-log.c
index f3b16e7..c353b2a 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -11,61 +11,68 @@
 void print_commit(struct commit *commit)
 {
         char buf[32];
         struct commitinfo *info;
         struct tm *time;
 
         info = cgit_parse_commit(commit);
         time = gmtime(&commit->date);
         html("<tr><td>");
         strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
         html_txt(buf);
         html("</td><td>");
         char *qry = fmt("id=%s", sha1_to_hex(commit->object.sha1));
         char *url = cgit_pageurl(cgit_query_repo, "commit", qry);
         html_link_open(url, NULL, NULL);
         html_ntxt(80, info->subject);
         html_link_close();
         html("</td><td>");
         html_txt(info->author);
         html("</td></tr>\n");
         cgit_free_commitinfo(info);
 }
 
 
-void cgit_print_log(const char *tip, int ofs, int cnt)
+void cgit_print_log(const char *tip, int ofs, int cnt, char *grep)
 {
         struct rev_info rev;
         struct commit *commit;
-        const char *argv[2] = {NULL, tip};
+        const char *argv[3] = {NULL, tip, NULL};
+        int argc = 2;
         int i;
         
+        if (grep)
+                argv[argc++] = fmt("--grep=%s", grep);
         init_revisions(&rev, NULL);
         rev.abbrev = DEFAULT_ABBREV;
         rev.commit_format = CMIT_FMT_DEFAULT;
         rev.verbose_header = 1;
         rev.show_root_diff = 0;
-        setup_revisions(2, argv, &rev, NULL);
+        setup_revisions(argc, argv, &rev, NULL);
+        if (rev.grep_filter) {
+                rev.grep_filter->regflags |= REG_ICASE;
+                compile_grep_patterns(rev.grep_filter);
+        }
         prepare_revision_walk(&rev);
 
         html("<h2>Log</h2>");
         html("<table class='list nowrap'>");
         html("<tr><th class='left'>Date</th>"
              "<th class='left'>Message</th>"
              "<th class='left'>Author</th></tr>\n");
 
         if (ofs<0)
                 ofs = 0;
 
         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;
         }
 
         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
                 print_commit(commit);
                 free(commit->buffer);
                 commit->buffer = NULL;
                 free_commit_list(commit->parents);
                 commit->parents = NULL;