Teach log search about --grep, --author and --committer

This makes the log searching more explicit, using a dropdown box to specify
the commit field to match against.

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

cgit.c

@@ -94,7 +94,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	switch(cgit_cmd) {
 	case CMD_LOG:
 		cgit_print_log(cgit_query_sha1, cgit_query_ofs,
-			       cgit_max_commit_count, cgit_query_search,
+			       cgit_max_commit_count, cgit_query_grep, cgit_query_search,
 			       cgit_query_path, 1);
 		break;
 	case CMD_TREE:

cgit.css

@@ -144,15 +144,32 @@ td#search form {
 	padding: 0px;
 }
 
+td#search select {
+	font-size: 9pt;
+	padding: 0px;
+	border: solid 1px #333;
+	color: #333;
+	background-color: #fff;
+}
+
 td#search input {
 	font-size: 9pt;
 	padding: 0px;
-	width: 10em;
+}
+
+td#search input.txt {
+	width: 8em;
 	border: solid 1px #333;
 	color: #333;
 	background-color: #fff;
 }
 
+td#search input.btn {
+	border: solid 1px #333;
+	color: #333;
+	background-color: #ccc;
+}
+
 div#summary {
 	vertical-align: top;
 	margin-bottom: 1em;

cgit.h

@@ -158,6 +158,7 @@ extern char *cgit_querystring;
 extern char *cgit_query_repo;
 extern char *cgit_query_page;
 extern char *cgit_query_search;
+extern char *cgit_query_grep;
 extern char *cgit_query_head;
 extern char *cgit_query_sha1;
 extern char *cgit_query_sha2;
@@ -260,7 +261,8 @@ extern void cgit_print_tags(int maxcount);
 
 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, char *grep, char *path, int pager);
+extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep,
+			   char *pattern, char *path, int pager);
 extern void cgit_print_blob(struct cacheitem *item, const char *hex, char *path);
 extern void cgit_print_tree(const char *rev, char *path);
 extern void cgit_print_commit(char *hex);

shared.c

@@ -54,6 +54,7 @@ char *cgit_query_repo   = NULL;
 char *cgit_query_page   = NULL;
 char *cgit_query_head   = NULL;
 char *cgit_query_search = NULL;
+char *cgit_query_grep   = NULL;
 char *cgit_query_sha1   = NULL;
 char *cgit_query_sha2   = NULL;
 char *cgit_query_path   = NULL;
@@ -232,6 +233,8 @@ void cgit_querystring_cb(const char *name, const char *value)
 		cgit_cmd = cgit_get_cmd_index(value);
 	} else if (!strcmp(name, "url")) {
 		cgit_parse_url(value);
+	} else if (!strcmp(name, "qt")) {
+		cgit_query_grep = xstrdup(value);
 	} else if (!strcmp(name, "q")) {
 		cgit_query_search = xstrdup(value);
 	} else if (!strcmp(name, "h")) {

ui-log.c

@@ -51,7 +51,7 @@ void print_commit(struct commit *commit)
 }
 
 
-void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path, int pager)
+void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern, char *path, int pager)
 {
 	struct rev_info rev;
 	struct commit *commit;
@@ -62,8 +62,11 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path, i
 	if (!tip)
 		argv[1] = cgit_query_head;
 
-	if (grep)
-		argv[argc++] = fmt("--grep=%s", grep);
+	if (grep && pattern && (!strcmp(grep, "grep") ||
+				!strcmp(grep, "author") ||
+				!strcmp(grep, "committer")))
+		argv[argc++] = fmt("--%s=%s", grep, pattern);
+
 	if (path) {
 		argv[argc++] = "--";
 		argv[argc++] = path;

ui-shared.c

@@ -417,9 +417,14 @@ void cgit_print_pageheader(char *title, int show_search)
 			html_hidden("id", cgit_query_sha1);
 		if (cgit_query_sha2)
 			html_hidden("id2", cgit_query_sha2);
-		html("<input type='text' name='q' value='");
+		html("<select name='qt'>");
+		html_option("grep", "log msg", cgit_query_grep);
+		html_option("author", "author", cgit_query_grep);
+		html_option("committer", "committer", cgit_query_grep);
+		html("</select>");
+		html("<input class='txt' type='text' name='q' value='");
 		html_attr(cgit_query_search);
-		html("'/></form>");
+		html("'/><input class='btn' type='submit' value='...'/></form>");
 	}
 	html("</td></tr>");
 	html("<tr><td id='content' colspan='2'>");

ui-summary.c

@@ -236,7 +236,7 @@ void cgit_print_summary()
 		html_include(cgit_repo->readme);
 	html("</div>");
 	if (cgit_summary_log > 0)
-		cgit_print_log(cgit_query_head, 0, cgit_summary_log, NULL, NULL, 0);
+		cgit_print_log(cgit_query_head, 0, cgit_summary_log, NULL, NULL, NULL, 0);
 	html("<table class='list nowrap'>");
 	if (cgit_summary_log > 0)
 		html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");