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-rw-r--r--ui-diff.c88
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
@@ -8,9 +8,6 @@
8 8
9#include "cgit.h" 9#include "cgit.h"
10 10
11char *diff_buffer;
12int diff_buffer_size;
13
14 11
15/* 12/*
16 * print a single line returned from xdiff 13 * print a single line returned from xdiff
@@ -34,88 +31,6 @@ static void print_line(char *line, int len)
34 line[len-1] = c; 31 line[len-1] = c;
35} 32}
36 33
37/*
38 * Receive diff-buffers from xdiff and concatenate them as
39 * needed across multiple callbacks.
40 *
41 * This is basically a copy of xdiff-interface.c/xdiff_outf(),
42 * ripped from git and modified to use globals instead of
43 * a special callback-struct.
44 */
45int diff_cb(void *priv_, mmbuffer_t *mb, int nbuf)
46{
47 int i;
48
49 for (i = 0; i < nbuf; i++) {
50 if (mb[i].ptr[mb[i].size-1] != '\n') {
51 /* Incomplete line */
52 diff_buffer = xrealloc(diff_buffer,
53 diff_buffer_size + mb[i].size);
54 memcpy(diff_buffer + diff_buffer_size,
55 mb[i].ptr, mb[i].size);
56 diff_buffer_size += mb[i].size;
57 continue;
58 }
59
60 /* we have a complete line */
61 if (!diff_buffer) {
62 print_line(mb[i].ptr, mb[i].size);
63 continue;
64 }
65 diff_buffer = xrealloc(diff_buffer,
66 diff_buffer_size + mb[i].size);
67 memcpy(diff_buffer + diff_buffer_size, mb[i].ptr, mb[i].size);
68 print_line(diff_buffer, diff_buffer_size + mb[i].size);
69 free(diff_buffer);
70 diff_buffer = NULL;
71 diff_buffer_size = 0;
72 }
73 if (diff_buffer) {
74 print_line(diff_buffer, diff_buffer_size);
75 free(diff_buffer);
76 diff_buffer = NULL;
77 diff_buffer_size = 0;
78 }
79 return 0;
80}
81
82static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
83{
84 enum object_type type;
85
86 if (is_null_sha1(sha1)) {
87 file->ptr = (char *)"";
88 file->size = 0;
89 } else {
90 file->ptr = read_sha1_file(sha1, &type, &file->size);
91 }
92 return 1;
93}
94
95static void run_diff(const unsigned char *sha1, const unsigned char *sha2)
96{
97 mmfile_t file1, file2;
98 xpparam_t diff_params;
99 xdemitconf_t emit_params;
100 xdemitcb_t emit_cb;
101
102 if (!load_mmfile(&file1, sha1) || !load_mmfile(&file2, sha2)) {
103 cgit_print_error("Unable to load files for diff");
104 return;
105 }
106
107 diff_params.flags = XDF_NEED_MINIMAL;
108
109 emit_params.ctxlen = 3;
110 emit_params.flags = XDL_EMIT_FUNCNAMES;
111
112 emit_cb.outf = diff_cb;
113
114 xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
115}
116
117
118
119void cgit_print_diff(const char *old_hex, const char *new_hex) 34void cgit_print_diff(const char *old_hex, const char *new_hex)
120{ 35{
121 unsigned char sha1[20], sha2[20]; 36 unsigned char sha1[20], sha2[20];
@@ -124,6 +39,7 @@ void cgit_print_diff(const char *old_hex, const char *new_hex)
124 get_sha1(new_hex, sha2); 39 get_sha1(new_hex, sha2);
125 40
126 html("<table class='diff'><tr><td>"); 41 html("<table class='diff'><tr><td>");
127 run_diff(sha1, sha2); 42 if (cgit_diff_files(sha1, sha2, print_line))
43 cgit_print_error("Error running diff");
128 html("</td></tr></table>"); 44 html("</td></tr></table>");
129} 45}