7 files changed, 119 insertions, 30 deletions

diff --git a/cgit.css b/cgit.css
index 957d5aa..adfc8ae 100644
--- a/cgit.css
+++ b/cgit.css
@@ -264,4 +264,23 @@ table.blob a.no a:hover {
 }
 
+table.bin-blob {
+        margin-top: 0.5em;
+        border: solid 1px black;
+}
+
+table.bin-blob th {
+        font-family: monospace;
+        white-space: pre;
+        border: solid 1px #777;
+        padding: 0.5em 1em;
+}
+
+table.bin-blob td {
+        font-family: monospace;
+        white-space: pre;
+        border-left: solid 1px #777;
+        padding: 0em 1em;
+}
+
 table.nowrap td {
         white-space: nowrap;
diff --git a/cgit.h b/cgit.h
index 4942b96..5f7af51 100644
--- a/cgit.h
+++ b/cgit.h
@@ -16,4 +16,5 @@
 #include <log-tree.h>
 #include <archive.h>
+#include <xdiff-interface.h>
 #include <xdiff/xdiff.h>
 #include <utf8.h>
@@ -223,5 +224,6 @@ extern void *cgit_free_commitinfo(struct commitinfo *info);
 extern int cgit_diff_files(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
-                           linediff_fn fn);
+                           unsigned long *old_size, unsigned long *new_size,
+                           int *binary, linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
diff --git a/shared.c b/shared.c
index 578a544..cce0af4 100644
--- a/shared.c
+++ b/shared.c
@@ -258,6 +258,6 @@ int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
 
 int cgit_diff_files(const unsigned char *old_sha1,
-                     const unsigned char *new_sha1,
-                     linediff_fn fn)
+                    const unsigned char *new_sha1, unsigned long *old_size,
+                    unsigned long *new_size, int *binary, linediff_fn fn)
 {
         mmfile_t file1, file2;
@@ -269,4 +269,13 @@ int cgit_diff_files(const unsigned char *old_sha1,
                 return 1;
 
+        *old_size = file1.size;
+        *new_size = file2.size;
+
+        if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
+            (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
+                *binary = 1;
+                return 0;
+        }
+
         memset(&diff_params, 0, sizeof(diff_params));
         memset(&emit_params, 0, sizeof(emit_params));
diff --git a/ui-diff.c b/ui-diff.c
index 878496d..2196745 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -28,4 +28,7 @@ static struct fileinfo {
         unsigned int added;
         unsigned int removed;
+        unsigned long old_size;
+        unsigned long new_size;
+        int binary:1;
 } *items;
 
@@ -87,4 +90,9 @@ static void print_fileinfo(struct fileinfo *info)
                       info->old_path);
         html("</td><td class='right'>");
+        if (info->binary) {
+                htmlf("bin</td><td class='graph'>%d -> %d bytes",
+                      info->old_size, info->new_size);
+                return;
+        }
         htmlf("%d", info->added + info->removed);
         html("</td><td class='graph'>");
@@ -111,8 +119,12 @@ static void count_diff_lines(char *line, int len)
 static void inspect_filepair(struct diff_filepair *pair)
 {
+        int binary = 0;
+        unsigned long old_size = 0;
+        unsigned long new_size = 0;
         files++;
         lines_added = 0;
         lines_removed = 0;
-        cgit_diff_files(pair->one->sha1, pair->two->sha1, count_diff_lines);
+        cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size, &new_size,
+                        &binary, count_diff_lines);
         if (files >= slots) {
                 if (slots == 0)
@@ -131,4 +143,7 @@ static void inspect_filepair(struct diff_filepair *pair)
         items[files-1].added = lines_added;
         items[files-1].removed = lines_removed;
+        items[files-1].old_size = old_size;
+        items[files-1].new_size = new_size;
+        items[files-1].binary = binary;
         if (lines_added + lines_removed > max_changes)
                 max_changes = lines_added + lines_removed;
@@ -234,4 +249,8 @@ static void header(unsigned char *sha1, char *path1, int mode1,
 static void filepair_cb(struct diff_filepair *pair)
 {
+        unsigned long old_size = 0;
+        unsigned long new_size = 0;
+        int binary = 0;
+
         header(pair->one->sha1, pair->one->path, pair->one->mode,
                pair->two->sha1, pair->two->path, pair->two->mode);
@@ -243,6 +262,9 @@ static void filepair_cb(struct diff_filepair *pair)
                 return;
         }
-        if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
+        if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size, 
+                            &new_size, &binary, print_line))
                 cgit_print_error("Error running diff");
+        if (binary)
+                html("Binary files differ");
 }
 
diff --git a/ui-log.c b/ui-log.c
index 3202848..ba2ab03 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -27,7 +27,12 @@ void count_lines(char *line, int size)
 void inspect_files(struct diff_filepair *pair)
 {
+        unsigned long old_size = 0;
+        unsigned long new_size = 0;
+        int binary = 0;
+
         files++;
         if (ctx.repo->enable_log_linecount)
-                cgit_diff_files(pair->one->sha1, pair->two->sha1, count_lines);
+                cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
+                                &new_size, &binary, count_lines);
 }
 
diff --git a/ui-patch.c b/ui-patch.c
index 1d77336..5d665d3 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -58,4 +58,8 @@ static void header(unsigned char *sha1, char *path1, int mode1,
 static void filepair_cb(struct diff_filepair *pair)
 {
+        unsigned long old_size = 0;
+        unsigned long new_size = 0;
+        int binary = 0;
+
         header(pair->one->sha1, pair->one->path, pair->one->mode,
                pair->two->sha1, pair->two->path, pair->two->mode);
@@ -67,6 +71,9 @@ static void filepair_cb(struct diff_filepair *pair)
                 return;
         }
-        if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
+        if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
+                            &new_size, &binary, print_line))
                 html("Error running diff");
+        if (binary)
+                html("Binary files differ\n");
 }
 
diff --git a/ui-tree.c b/ui-tree.c
index c26ba4c..a37a4e5 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -7,4 +7,5 @@
  */
 
+#include <ctype.h>
 #include "cgit.h"
 #include "html.h"
@@ -15,10 +16,51 @@ char *match_path;
 int header = 0;
 
+static void print_text_buffer(char *buf, unsigned long size)
+{
+        unsigned long lineno, idx;
+        const char *numberfmt =
+                "<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
+
+        html("<table summary='blob content' class='blob'>\n");
+        html("<tr><td class='linenumbers'><pre>");
+        idx = 0;
+        lineno = 0;
+        htmlf(numberfmt, ++lineno);
+        while(idx < size - 1) { // skip absolute last newline
+                if (buf[idx] == '\n')
+                        htmlf(numberfmt, ++lineno);
+                idx++;
+        }
+        html("</pre></td>\n");
+        html("<td class='lines'><pre><code>");
+        html_txt(buf);
+        html("</code></pre></td></tr></table>\n");
+}
+
+static void print_binary_buffer(char *buf, unsigned long size)
+{
+        unsigned long ofs, idx;
+
+        html("<table summary='blob content' class='bin-blob'>\n");
+        html("<tr><th>ofs</th><th>hex dump</th><th>ascii</th></tr>");
+        for (ofs = 0; ofs < size; ofs += 32, buf += 32) {
+                htmlf("<tr><td class='right'>%04x</td><td class='hex'>", ofs);
+                for (idx = 0; idx < 32 && ofs + idx < size; idx++)
+                        htmlf("%*s%02x",
+                              idx == 16 ? 4 : 1, "",
+                              buf[idx] & 0xff);
+                html(" </td><td class='hex'>");
+                for (idx = 0; idx < 32 && ofs + idx < size; idx++)
+                        htmlf("%c", isgraph(buf[idx]) ? buf[idx] : '.');
+                html("</td></tr>\n");
+        }
+        html("</table>\n");
+}
+
 static void print_object(const unsigned char *sha1, char *path)
 {
         enum object_type type;
         char *buf;
-        unsigned long size, lineno, idx;
-        const char *numberfmt = "<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
+        unsigned long size;
 
         type = sha1_object_info(sha1, &size);
@@ -41,25 +83,8 @@ static void print_object(const unsigned char *sha1, char *path)
         htmlf(")<br/>blob: %s\n", sha1_to_hex(sha1));
 
-        html("<table summary='blob content' class='blob'>\n");
-        html("<tr>\n");
-
-        html("<td class='linenumbers'><pre>");
-        idx = 0;
-        lineno = 0;
-        htmlf(numberfmt, ++lineno);
-        while(idx < size - 1) { // skip absolute last newline
-                if (buf[idx] == '\n') {
-                        htmlf(numberfmt, ++lineno);
-                }
-                idx++;
-        }
-        html("</pre></td>\n");
-
-        html("<td class='lines'><pre><code>");
-        html_txt(buf);
-        html("</code></pre></td>\n");
-
-        html("</tr>\n");
-        html("</table>\n");
+        if (buffer_is_binary(buf, size))
+                print_binary_buffer(buf, size);
+        else
+                print_text_buffer(buf, size);
 }