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cgitsb/ui-patch.c
John Keeping 3b485cc542 cache: flush stdio before restoring FDs
As described in commit 2efb59e (ui-patch: Flush stdout after outputting
data, 2014-06-11), we need to ensure that stdout is flushed before
restoring the file descriptor when writing to the cache.  It turns out
that it's not just ui-patch that is affected by this but also raw diff
which writes to stdout internally.

Let's avoid risking more places doing this by ensuring that stdout is
flushed after writing in fill_slot().

Signed-off-by: John Keeping <john@keeping.me.uk>
2017-10-03 19:19:34 +01:00

96 lines
2.5 KiB
C

/* ui-patch.c: generate patch view
*
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* 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;
struct object_id new_rev_oid, old_rev_oid;
char rev_range[2 * 40 + 3];
const char *rev_argv[] = { NULL, "--reverse", "--format=email", rev_range, "--", prefix, NULL };
int rev_argc = ARRAY_SIZE(rev_argv) - 1;
char *patchname;
if (!prefix)
rev_argc--;
if (!new_rev)
new_rev = ctx.qry.head;
if (get_oid(new_rev, &new_rev_oid)) {
cgit_print_error_page(404, "Not found",
"Bad object id: %s", new_rev);
return;
}
commit = lookup_commit_reference(&new_rev_oid);
if (!commit) {
cgit_print_error_page(404, "Not found",
"Bad commit reference: %s", new_rev);
return;
}
if (old_rev) {
if (get_oid(old_rev, &old_rev_oid)) {
cgit_print_error_page(404, "Not found",
"Bad object id: %s", old_rev);
return;
}
if (!lookup_commit_reference(&old_rev_oid)) {
cgit_print_error_page(404, "Not found",
"Bad commit reference: %s", old_rev);
return;
}
} else if (commit->parents && commit->parents->item) {
oidcpy(&old_rev_oid, &commit->parents->item->object.oid);
} else {
oidclr(&old_rev_oid);
}
if (is_null_oid(&old_rev_oid)) {
memcpy(rev_range, oid_to_hex(&new_rev_oid), GIT_SHA1_HEXSZ + 1);
} else {
sprintf(rev_range, "%s..%s", oid_to_hex(&old_rev_oid),
oid_to_hex(&new_rev_oid));
}
patchname = fmt("%s.patch", rev_range);
ctx.page.mimetype = "text/plain";
ctx.page.filename = patchname;
cgit_print_http_headers();
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_DIFFSTAT |
DIFF_FORMAT_PATCH | DIFF_FORMAT_SUMMARY;
if (prefix)
rev.diffopt.stat_sep = fmt("(limited to '%s')\n\n", prefix);
setup_revisions(rev_argc, 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);
}
}