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138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/* ui-patch.c: generate patch view
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*
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* Copyright (C) 2007 Lars Hjemli
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*/
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#include "cgit.h"
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#include "ui-patch.h"
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#include "html.h"
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#include "ui-shared.h"
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static void print_line(char *line, int len)
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{
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char c = line[len-1];
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line[len-1] = '\0';
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htmlf("%s\n", line);
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line[len-1] = c;
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}
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static void header(unsigned char *sha1, char *path1, int mode1,
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unsigned char *sha2, char *path2, int mode2)
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{
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char *abbrev1, *abbrev2;
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int subproject;
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subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2));
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htmlf("diff --git a/%s b/%s\n", path1, path2);
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if (mode1 == 0)
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htmlf("new file mode %.6o\n", mode2);
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if (mode2 == 0)
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htmlf("deleted file mode %.6o\n", mode1);
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if (!subproject) {
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abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
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abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
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htmlf("index %s..%s", abbrev1, abbrev2);
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free(abbrev1);
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free(abbrev2);
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if (mode1 != 0 && mode2 != 0) {
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htmlf(" %.6o", mode1);
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if (mode2 != mode1)
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htmlf("..%.6o", mode2);
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}
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if (is_null_sha1(sha1)) {
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path1 = "dev/null";
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htmlf("\n--- /%s\n", path1);
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} else
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htmlf("\n--- a/%s\n", path1);
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if (is_null_sha1(sha2)) {
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path2 = "dev/null";
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htmlf("+++ /%s\n", path2);
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} else
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htmlf("+++ b/%s\n", path2);
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}
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}
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static void filepair_cb(struct diff_filepair *pair)
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{
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unsigned long old_size = 0;
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unsigned long new_size = 0;
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int binary = 0;
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header(pair->one->sha1, pair->one->path, pair->one->mode,
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pair->two->sha1, pair->two->path, pair->two->mode);
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if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
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if (S_ISGITLINK(pair->one->mode))
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print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
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if (S_ISGITLINK(pair->two->mode))
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print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
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return;
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}
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if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
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&new_size, &binary, 0, 0, print_line))
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html("Error running diff");
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if (binary)
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html("Binary files differ\n");
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}
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void cgit_print_patch(char *hex, const char *prefix)
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{
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struct commit *commit;
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struct commitinfo *info;
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unsigned char sha1[20], old_sha1[20];
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char *patchname;
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if (!hex)
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hex = ctx.qry.head;
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if (get_sha1(hex, sha1)) {
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cgit_print_error("Bad object id: %s", hex);
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return;
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}
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commit = lookup_commit_reference(sha1);
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if (!commit) {
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cgit_print_error("Bad commit reference: %s", hex);
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return;
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}
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info = cgit_parse_commit(commit);
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if (commit->parents && commit->parents->item)
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hashcpy(old_sha1, commit->parents->item->object.sha1);
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else
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hashclr(old_sha1);
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patchname = fmt("%s.patch", sha1_to_hex(sha1));
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ctx.page.mimetype = "text/plain";
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ctx.page.filename = patchname;
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cgit_print_http_headers(&ctx);
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htmlf("From %s Mon Sep 17 00:00:00 2001\n", sha1_to_hex(sha1));
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htmlf("From: %s", info->author);
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if (!ctx.cfg.noplainemail) {
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htmlf(" %s", info->author_email);
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}
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html("\n");
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html("Date: ");
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cgit_print_date(info->author_date, "%a, %d %b %Y %H:%M:%S %z%n", ctx.cfg.local_time);
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htmlf("Subject: %s\n\n", info->subject);
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if (info->msg && *info->msg) {
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htmlf("%s", info->msg);
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if (info->msg[strlen(info->msg) - 1] != '\n')
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html("\n");
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}
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html("---\n");
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if (prefix)
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htmlf("(limited to '%s')\n\n", prefix);
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cgit_diff_tree(old_sha1, sha1, filepair_cb, prefix, 0);
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html("--\n");
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htmlf("cgit %s\n", cgit_version);
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cgit_free_commitinfo(info);
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}
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