Simplify ui-diff.c using the new file-level diff interface

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

1 files changed, 2 insertions, 86 deletions

diff --git a/ui-diff.c b/ui-diff.c
index 0ad9faf..96106af 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -1,129 +1,45 @@
 /* ui-diff.c: show diff between two blobs
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
-char *diff_buffer;
-int diff_buffer_size;
-
 
 /*
  * print a single line returned from xdiff
  */
 static void print_line(char *line, int len)
 {
         char *class = "ctx";
         char c = line[len-1];
 
         if (line[0] == '+')
                 class = "add";
         else if (line[0] == '-')
                 class = "del";
         else if (line[0] == '@')
                 class = "hunk";
 
         htmlf("<div class='%s'>", class);
         line[len-1] = '\0';
         html_txt(line);
         html("</div>");
         line[len-1] = c;
 }
 
-/*
- * Receive diff-buffers from xdiff and concatenate them as
- * needed across multiple callbacks.
- *
- * This is basically a copy of xdiff-interface.c/xdiff_outf(),
- * ripped from git and modified to use globals instead of
- * a special callback-struct.
- */
-int diff_cb(void *priv_, mmbuffer_t *mb, int nbuf)
-{
-        int i;
-
-        for (i = 0; i < nbuf; i++) {
-                if (mb[i].ptr[mb[i].size-1] != '\n') {
-                        /* Incomplete line */
-                        diff_buffer = xrealloc(diff_buffer,
-                                               diff_buffer_size + mb[i].size);
-                        memcpy(diff_buffer + diff_buffer_size,
-                               mb[i].ptr, mb[i].size);
-                        diff_buffer_size += mb[i].size;
-                        continue;
-                }
-
-                /* we have a complete line */
-                if (!diff_buffer) {
-                        print_line(mb[i].ptr, mb[i].size);
-                        continue;
-                }
-                diff_buffer = xrealloc(diff_buffer,
-                                       diff_buffer_size + mb[i].size);
-                memcpy(diff_buffer + diff_buffer_size, mb[i].ptr, mb[i].size);
-                print_line(diff_buffer, diff_buffer_size + mb[i].size);
-                free(diff_buffer);
-                diff_buffer = NULL;
-                diff_buffer_size = 0;
-        }
-        if (diff_buffer) {
-                print_line(diff_buffer, diff_buffer_size);
-                free(diff_buffer);
-                diff_buffer = NULL;
-                diff_buffer_size = 0;
-        }
-        return 0;
-}
-
-static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
-{
-        enum object_type type;
-
-        if (is_null_sha1(sha1)) {
-                file->ptr = (char *)"";
-                file->size = 0;
-        } else {
-                file->ptr = read_sha1_file(sha1, &type, &file->size);
-        }
-        return 1;
-}
-
-static void run_diff(const unsigned char *sha1, const unsigned char *sha2)
-{
-        mmfile_t file1, file2;
-        xpparam_t diff_params;
-        xdemitconf_t emit_params;
-        xdemitcb_t emit_cb;
-
-        if (!load_mmfile(&file1, sha1) || !load_mmfile(&file2, sha2)) {
-                cgit_print_error("Unable to load files for diff");
-                return;
-        }
-
-        diff_params.flags = XDF_NEED_MINIMAL;
-
-        emit_params.ctxlen = 3;
-        emit_params.flags = XDL_EMIT_FUNCNAMES;
-
-        emit_cb.outf = diff_cb;
-
-        xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
-}
-
-
-
 void cgit_print_diff(const char *old_hex, const char *new_hex)
 {
         unsigned char sha1[20], sha2[20];
 
         get_sha1(old_hex, sha1);
         get_sha1(new_hex, sha2);
 
         html("<table class='diff'><tr><td>");
-        run_diff(sha1, sha2);
+        if (cgit_diff_files(sha1, sha2, print_line))
+                cgit_print_error("Error running diff");
         html("</td></tr></table>");
 }