Add log filtering by path and link to it from tree view

This enables path-filtering in log-view, and adds a link per entry in
tree-view to show the log for each file/directory.

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

6 files changed, 37 insertions, 13 deletions

diff --git a/cgit.c b/cgit.c
index 3d85a08..9e63d18 100644
--- a/cgit.c
+++ b/cgit.c
@@ -108,9 +108,10 @@ static void cgit_print_repo_page(struct cacheitem *item)
 
         if (!strcmp(cgit_query_page, "log")) {
                 cgit_print_log(cgit_query_head, cgit_query_ofs,
-                               cgit_max_commit_count, cgit_query_search);
+                               cgit_max_commit_count, cgit_query_search,
+                               cgit_query_path);
         } else if (!strcmp(cgit_query_page, "tree")) {
-                cgit_print_tree(cgit_query_sha1, cgit_query_path);
+                cgit_print_tree(cgit_query_head, cgit_query_sha1, cgit_query_path);
         } else if (!strcmp(cgit_query_page, "commit")) {
                 cgit_print_commit(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "view")) {
diff --git a/cgit.css b/cgit.css
index fe0ba50..6231e28 100644
--- a/cgit.css
+++ b/cgit.css
@@ -189,6 +189,11 @@ td.filesize {
         font-family: monospace;
 }
 
+td.links {
+        font-size: 80%;
+        padding-left: 2em;
+}
+
 td.filemode {
         font-family: monospace;
 }
diff --git a/cgit.h b/cgit.h
index 93699b5..0fff7b0 100644
--- a/cgit.h
+++ b/cgit.h
@@ -169,10 +169,10 @@ extern void cgit_print_snapshot_start(const char *mimetype,
 
 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);
+extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path);
 extern void cgit_print_view(const char *hex, char *path);
 extern void cgit_print_blob(struct cacheitem *item, const char *hex, char *path);
-extern void cgit_print_tree(const char *hex, char *path);
+extern void cgit_print_tree(const char *rev, const char *hex, char *path);
 extern void cgit_print_commit(const char *hex);
 extern void cgit_print_diff(const char *old_hex, const char *new_hex, char *path);
 extern void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
diff --git a/ui-commit.c b/ui-commit.c
index b3d1c28..20a7cb2 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -186,7 +186,8 @@ void cgit_print_commit(const char *hex)
         cgit_print_date(info->committer_date);
         html("</td></tr>\n");
         html("<tr><th>tree</th><td colspan='2' class='sha1'><a href='");
-        query = fmt("id=%s", sha1_to_hex(commit->tree->object.sha1));
+        query = fmt("h=%s&id=%s", sha1_to_hex(commit->object.sha1),
+                    sha1_to_hex(commit->tree->object.sha1));
         html_attr(cgit_pageurl(cgit_query_repo, "tree", query));
         htmlf("'>%s</a></td></tr>\n", sha1_to_hex(commit->tree->object.sha1));
         for (p = commit->parents; p ; p = p->next) {
diff --git a/ui-log.c b/ui-log.c
index 7d1985e..6d5509b 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -53,16 +53,20 @@ void print_commit(struct commit *commit)
 }
 
 
-void cgit_print_log(const char *tip, int ofs, int cnt, char *grep)
+void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path)
 {
         struct rev_info rev;
         struct commit *commit;
-        const char *argv[3] = {NULL, tip, NULL};
+        const char *argv[] = {NULL, tip, NULL, NULL, NULL};
         int argc = 2;
         int i;
 
         if (grep)
                 argv[argc++] = fmt("--grep=%s", grep);
+        if (path) {
+                argv[argc++] = "--";
+                argv[argc++] = path;
+        }
         init_revisions(&rev, NULL);
         rev.abbrev = DEFAULT_ABBREV;
         rev.commit_format = CMIT_FMT_DEFAULT;
diff --git a/ui-tree.c b/ui-tree.c
index dee8309..db63e13 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -8,9 +8,10 @@
 
 #include "cgit.h"
 
+char *curr_rev;
 
-static int print_entry(const unsigned char *sha1, const char *base, 
-                       int baselen, const char *pathname, unsigned int mode, 
+static int print_entry(const unsigned char *sha1, const char *base,
+                       int baselen, const char *pathname, unsigned int mode,
                        int stage)
 {
         char *name;
@@ -35,30 +36,41 @@ static int print_entry(const unsigned char *sha1, const char *base,
                               sha1_to_hex(sha1)));
         } else if (S_ISDIR(mode)) {
                 html("class='ls-dir'><a href='");
-                html_attr(cgit_pageurl(cgit_query_repo, "tree", 
-                                       fmt("id=%s&path=%s%s/", 
+                html_attr(cgit_pageurl(cgit_query_repo, "tree",
+                                       fmt("h=%s&id=%s&path=%s%s/",
+                                           curr_rev,
                                            sha1_to_hex(sha1),
                                            cgit_query_path ? cgit_query_path : "",
                                            pathname)));
         } else {
                 html("class='ls-blob'><a href='");
                 html_attr(cgit_pageurl(cgit_query_repo, "view",
-                                      fmt("id=%s&path=%s%s", sha1_to_hex(sha1),
+                                      fmt("h=%s&id=%s&path=%s%s", curr_rev,
+                                          sha1_to_hex(sha1),
                                           cgit_query_path ? cgit_query_path : "",
                                           pathname)));
         }
         htmlf("'>%s</a></div></td>", name);
         htmlf("<td class='filesize'>%li</td>", size);
+
+        html("<td class='links'><a href='");
+        html_attr(cgit_pageurl(cgit_query_repo, "log",
+                               fmt("h=%s&path=%s%s",
+                                   curr_rev,
+                                   cgit_query_path ? cgit_query_path : "",
+                                   pathname)));
+        html("'>history</a></td>");
         html("</tr>\n");
         free(name);
         return 0;
 }
 
-void cgit_print_tree(const char *hex, char *path)
+void cgit_print_tree(const char *rev, const char *hex, char *path)
 {
         struct tree *tree;
         unsigned char sha1[20];
 
+        curr_rev = xstrdup(rev);
         if (get_sha1_hex(hex, sha1)) {
                 cgit_print_error(fmt("Invalid object id: %s", hex));
                 return;
@@ -75,6 +87,7 @@ void cgit_print_tree(const char *hex, char *path)
         html("<th class='left'>Mode</th>");
         html("<th class='left'>Name</th>");
         html("<th class='right'>Size</th>");
+        html("<th/>");
         html("</tr>\n");
         read_tree_recursive(tree, "", 0, 1, NULL, print_entry);
         html("</table>\n");