*/
#include "cgit.h"
+#include "html.h"
+#include "ui-shared.h"
-char *diff_buffer;
-int diff_buffer_size;
-
+unsigned char old_rev_sha1[20];
+unsigned char new_rev_sha1[20];
/*
* print a single line returned from xdiff
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)
+static void header(unsigned char *sha1, char *path1, int mode1,
+ unsigned char *sha2, char *path2, int mode2)
{
- 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;
+ char *abbrev1, *abbrev2;
+ int subproject;
+
+ subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2));
+ html("<div class='head'>");
+ html("diff --git a/");
+ html_txt(path1);
+ html(" b/");
+ html_txt(path2);
+
+ if (is_null_sha1(sha1))
+ path1 = "dev/null";
+ if (is_null_sha1(sha2))
+ path2 = "dev/null";
+
+ if (mode1 == 0)
+ htmlf("<br/>new file mode %.6o", mode2);
+
+ if (mode2 == 0)
+ htmlf("<br/>deleted file mode %.6o", mode1);
+
+ if (!subproject) {
+ abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
+ abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
+ htmlf("<br/>index %s..%s", abbrev1, abbrev2);
+ free(abbrev1);
+ free(abbrev2);
+ if (mode1 != 0 && mode2 != 0) {
+ htmlf(" %.6o", mode1);
+ if (mode2 != mode1)
+ htmlf("..%.6o", mode2);
}
-
- /* 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;
+ html("<br/>--- a/");
+ if (mode1 != 0)
+ cgit_tree_link(path1, NULL, NULL, ctx.qry.head,
+ sha1_to_hex(old_rev_sha1), path1);
+ else
+ html_txt(path1);
+ html("<br/>+++ b/");
+ if (mode2 != 0)
+ cgit_tree_link(path2, NULL, NULL, ctx.qry.head,
+ sha1_to_hex(new_rev_sha1), path2);
+ else
+ html_txt(path2);
}
- return 0;
+ html("</div>");
}
-static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
+static void filepair_cb(struct diff_filepair *pair)
{
- 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);
+ header(pair->one->sha1, pair->one->path, pair->one->mode,
+ pair->two->sha1, pair->two->path, pair->two->mode);
+ if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
+ if (S_ISGITLINK(pair->one->mode))
+ print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
+ if (S_ISGITLINK(pair->two->mode))
+ print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
+ return;
}
- return 1;
+ if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
+ cgit_print_error("Error running diff");
}
-static void run_diff(const unsigned char *sha1, const unsigned char *sha2)
+void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix)
{
- 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");
+ enum object_type type;
+ unsigned long size;
+ struct commit *commit, *commit2;
+
+ if (!new_rev)
+ new_rev = ctx.qry.head;
+ get_sha1(new_rev, new_rev_sha1);
+ type = sha1_object_info(new_rev_sha1, &size);
+ if (type == OBJ_BAD) {
+ cgit_print_error(fmt("Bad object name: %s", new_rev));
+ return;
+ }
+ if (type != OBJ_COMMIT) {
+ cgit_print_error(fmt("Unhandled object type: %s",
+ typename(type)));
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);
- html("</td></tr></table>");
+ commit = lookup_commit_reference(new_rev_sha1);
+ if (!commit || parse_commit(commit))
+ cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(new_rev_sha1)));
+
+ if (old_rev)
+ get_sha1(old_rev, old_rev_sha1);
+ else if (commit->parents && commit->parents->item)
+ hashcpy(old_rev_sha1, commit->parents->item->object.sha1);
+ else
+ hashclr(old_rev_sha1);
+
+ if (!is_null_sha1(old_rev_sha1)) {
+ type = sha1_object_info(old_rev_sha1, &size);
+ if (type == OBJ_BAD) {
+ cgit_print_error(fmt("Bad object name: %s", sha1_to_hex(old_rev_sha1)));
+ return;
+ }
+ commit2 = lookup_commit_reference(old_rev_sha1);
+ if (!commit2 || parse_commit(commit2))
+ cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(old_rev_sha1)));
+ }
+ html("<table summary='diff' class='diff'>");
+ html("<tr><td>");
+ cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix);
+ html("</td></tr>");
+ html("</table>");
}
git.ckatri.com / cgit.git / blobdiff