From 732d68d240b95dc428c92fc94bce9adb8912094e Mon Sep 17 00:00:00 2001
From: Lars Hjemli
Date: Thu, 28 Dec 2006 02:45:28 +0100
Subject: Add basic log filtering

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

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
---
 cgit.c   |  7 +++++--
 cgit.h   |  2 +-
 git.h    | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 ui-log.c | 13 ++++++++++---
 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
@@ -24,12 +24,15 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	}
 	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")) {
diff --git a/cgit.h b/cgit.h
index e114a50..249650e 100644
--- a/cgit.h
+++ b/cgit.h
@@ -104,7 +104,7 @@ 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);
diff --git a/git.h b/git.h
index 922a167..b1e4828 100644
--- a/git.h
+++ b/git.h
@@ -31,7 +31,7 @@
 #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).
@@ -156,6 +156,72 @@ static inline void hashclr(unsigned char *hash)
 }
 
 
+/*
+ * 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);
 
 
 /*
diff --git a/ui-log.c b/ui-log.c
index f3b16e7..c353b2a 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -32,19 +32,26 @@ void print_commit(struct commit *commit)
 }
 
 
-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>");
-- 
cgit v1.2.3-54-g00ecf

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.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
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.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="cp">#ifndef UI_SHARED_H</span>
<span class="cp">#define UI_SHARED_H</span>

<span class="k">extern</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="nf">cgit_hosturl</span><span class="p">();</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="nf">cgit_repourl</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">reponame</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="nf">cgit_fileurl</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">reponame</span><span class="p">,</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">pagename</span><span class="p">,</span>
<span class="w">			  </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">filename</span><span class="p">,</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">query</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="nf">cgit_pageurl</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">reponame</span><span class="p">,</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">pagename</span><span class="p">,</span>
<span class="w">			  </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">query</span><span class="p">);</span>

<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_index_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span>
<span class="w">			    </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">pattern</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ofs</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_summary_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_tag_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			  </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_tree_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			   </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">path</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_plain_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			    </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">path</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_log_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			  </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">path</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">ofs</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">grep</span><span class="p">,</span>
<span class="w">			  </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">pattern</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_commit_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			     </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_patch_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			    </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_refs_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			   </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">path</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_snapshot_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span>
<span class="w">			       </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">archivename</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_diff_link</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">name</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">title</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">class</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">			   </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">new_rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">old_rev</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">path</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_object_link</span><span class="p">(</span><span class="k">struct</span><span class="w"> </span><span class="nc">object</span><span class="w"> </span><span class="o">*</span><span class="n">obj</span><span class="p">);</span>

<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_error</span><span class="p">(</span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">msg</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_date</span><span class="p">(</span><span class="kt">time_t</span><span class="w"> </span><span class="n">secs</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">format</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">local_time</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_age</span><span class="p">(</span><span class="kt">time_t</span><span class="w"> </span><span class="n">t</span><span class="p">,</span><span class="w"> </span><span class="kt">time_t</span><span class="w"> </span><span class="n">max_relative</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">format</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_http_headers</span><span class="p">(</span><span class="k">struct</span><span class="w"> </span><span class="nc">cgit_context</span><span class="w"> </span><span class="o">*</span><span class="n">ctx</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_docstart</span><span class="p">(</span><span class="k">struct</span><span class="w"> </span><span class="nc">cgit_context</span><span class="w"> </span><span class="o">*</span><span class="n">ctx</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_docend</span><span class="p">();</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_pageheader</span><span class="p">(</span><span class="k">struct</span><span class="w"> </span><span class="nc">cgit_context</span><span class="w"> </span><span class="o">*</span><span class="n">ctx</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_filemode</span><span class="p">(</span><span class="kt">unsigned</span><span class="w"> </span><span class="kt">short</span><span class="w"> </span><span class="n">mode</span><span class="p">);</span>
<span class="k">extern</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">cgit_print_snapshot_links</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">repo</span><span class="p">,</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">head</span><span class="p">,</span>
<span class="w">				      </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="n">hex</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">snapshots</span><span class="p">);</span>

<span class="cp">#endif </span><span class="cm">/* UI_SHARED_H */</span>
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