Support refspecs in about-filter.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 34 insertions, 1 deletions

diff --git a/ui-blob.c b/ui-blob.c
index 89330ce..667a451 100644
--- a/ui-blob.c
+++ b/ui-blob.c
@@ -1,79 +1,112 @@
 /* ui-blob.c: show blob content
  *
  * Copyright (C) 2008 Lars Hjemli
+ * Copyright (C) 2010 Jason A. Donenfeld <Jason@zx2c4.com>
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
 
 static char *match_path;
 static unsigned char *matched_sha1;
+static int found_path;
 
 static int walk_tree(const unsigned char *sha1, const char *base,int baselen,
         const char *pathname, unsigned mode, int stage, void *cbdata) {
         if(strncmp(base,match_path,baselen)
                 || strcmp(match_path+baselen,pathname) )
                 return READ_TREE_RECURSIVE;
         memmove(matched_sha1,sha1,20);
+        found_path = 1;
         return 0;
 }
 
-void cgit_print_blob(const char *hex, char *path, const char *head)
+int cgit_print_file(char *path, const char *head)
 {
+        unsigned char sha1[20];
+        enum object_type type;
+        char *buf;
+        unsigned long size;
+        struct commit *commit;
+        const char *paths[] = {path, NULL};
+        if (get_sha1(head, sha1))
+                return -1;
+        type = sha1_object_info(sha1, &size);
+        if(type == OBJ_COMMIT && path) {
+                commit = lookup_commit_reference(sha1);
+                match_path = path;
+                matched_sha1 = sha1;
+                found_path = 0;
+                read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
+                if (!found_path)
+                        return -1;
+                type = sha1_object_info(sha1, &size);
+        }
+        if (type == OBJ_BAD)
+                return -1;
+        buf = read_sha1_file(sha1, &type, &size);
+        if (!buf)
+                return -1;
+        buf[size] = '\0';
+        write(htmlfd, buf, size);
+        return 0;
+}
 
+void cgit_print_blob(const char *hex, char *path, const char *head)
+{
         unsigned char sha1[20];
         enum object_type type;
         char *buf;
         unsigned long size;
         struct commit *commit;
         const char *paths[] = {path, NULL};
 
         if (hex) {
                 if (get_sha1_hex(hex, sha1)){
                         cgit_print_error(fmt("Bad hex value: %s", hex));
                         return;
                 }
         } else {
                 if (get_sha1(head,sha1)) {
                         cgit_print_error(fmt("Bad ref: %s", head));
                         return;
                 }
         }
 
         type = sha1_object_info(sha1, &size);
 
         if((!hex) && type == OBJ_COMMIT && path) {
                 commit = lookup_commit_reference(sha1);
                 match_path = path;
                 matched_sha1 = sha1;
                 read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
                 type = sha1_object_info(sha1,&size);
         }
 
         if (type == OBJ_BAD) {
                 cgit_print_error(fmt("Bad object name: %s", hex));
                 return;
         }
 
         buf = read_sha1_file(sha1, &type, &size);
         if (!buf) {
                 cgit_print_error(fmt("Error reading object %s", hex));
                 return;
         }
 
         buf[size] = '\0';
         ctx.page.mimetype = ctx.qry.mimetype;
         if (!ctx.page.mimetype) {
                 if (buffer_is_binary(buf, size))
                         ctx.page.mimetype = "application/octet-stream";
                 else
                         ctx.page.mimetype = "text/plain";
         }
         ctx.page.filename = path;
         cgit_print_http_headers(&ctx);
         write(htmlfd, buf, size);
 }