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/* ui-patch.c: generate patch view
*
* Copyright (C) 2007 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "ui-patch.h"
#include "html.h"
#include "ui-shared.h"
void cgit_print_patch(const char *new_rev, const char *old_rev,
const char *prefix)
{
struct rev_info rev;
struct commit *commit;
unsigned char new_rev_sha1[20], old_rev_sha1[20];
char rev_range[2 * 40 + 3];
char *rev_argv[] = { NULL, "--reverse", "--format=email", rev_range };
char *patchname;
if (!new_rev)
new_rev = ctx.qry.head;
if (get_sha1(new_rev, new_rev_sha1)) {
cgit_print_error("Bad object id: %s", new_rev);
return;
}
commit = lookup_commit_reference(new_rev_sha1);
if (!commit) {
cgit_print_error("Bad commit reference: %s", new_rev);
return;
}
if (old_rev) {
if (get_sha1(old_rev, old_rev_sha1)) {
cgit_print_error("Bad object id: %s", old_rev);
return;
}
if (!lookup_commit_reference(old_rev_sha1)) {
cgit_print_error("Bad commit reference: %s", old_rev);
return;
}
} 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)) {
memcpy(rev_range, sha1_to_hex(new_rev_sha1), 41);
} else {
sprintf(rev_range, "%s..%s", sha1_to_hex(old_rev_sha1),
sha1_to_hex(new_rev_sha1));
}
patchname = fmt("%s.patch", rev_range);
ctx.page.mimetype = "text/plain";
ctx.page.filename = patchname;
cgit_print_http_headers(&ctx);
if (ctx.cfg.noplainemail) {
rev_argv[2] = "--format=format:From %H Mon Sep 17 00:00:00 "
"2001%nFrom: %an%nDate: %aD%n%w(78,0,1)Subject: "
"%s%n%n%w(0)%b";
}
init_revisions(&rev, NULL);
rev.abbrev = DEFAULT_ABBREV;
rev.verbose_header = 1;
rev.diff = 1;
rev.show_root_diff = 1;
rev.max_parents = 1;
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
setup_revisions(ARRAY_SIZE(rev_argv), (const char **)rev_argv, &rev,
NULL);
prepare_revision_walk(&rev);
while ((commit = get_revision(&rev)) != NULL) {
log_tree_commit(&rev, commit);
printf("-- \ncgit %s\n\n", cgit_version);
}
}
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