gitweb.ps.run Git - ps-cgit/blob - ui-patch.c

   1 /* ui-patch.c: generate patch view
   2  *
   3  * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #define USE_THE_REPOSITORY_VARIABLE
  10
  11 #include "cgit.h"
  12 #include "ui-patch.h"
  13 #include "html.h"
  14 #include "ui-shared.h"
  15
  16 /* two commit hashes with two dots in between and termination */
  17 #define REV_RANGE_LEN 2 * GIT_MAX_HEXSZ + 3
  18
  19 void cgit_print_patch(const char *new_rev, const char *old_rev,
  20                       const char *prefix)
  21 {
  22         struct rev_info rev;
  23         struct commit *commit;
  24         struct object_id new_rev_oid, old_rev_oid;
  25         char rev_range[REV_RANGE_LEN];
  26         const char *rev_argv[] = { NULL, "--reverse", "--format=email", rev_range, "--", prefix, NULL };
  27         int rev_argc = ARRAY_SIZE(rev_argv) - 1;
  28         char *patchname;
  29
  30         if (!prefix)
  31                 rev_argc--;
  32
  33         if (!new_rev)
  34                 new_rev = ctx.qry.head;
  35
  36         if (repo_get_oid(the_repository, new_rev, &new_rev_oid)) {
  37                 cgit_print_error_page(404, "Not found",
  38                                 "Bad object id: %s", new_rev);
  39                 return;
  40         }
  41         commit = lookup_commit_reference(the_repository, &new_rev_oid);
  42         if (!commit) {
  43                 cgit_print_error_page(404, "Not found",
  44                                 "Bad commit reference: %s", new_rev);
  45                 return;
  46         }
  47
  48         if (old_rev) {
  49                 if (repo_get_oid(the_repository, old_rev, &old_rev_oid)) {
  50                         cgit_print_error_page(404, "Not found",
  51                                         "Bad object id: %s", old_rev);
  52                         return;
  53                 }
  54                 if (!lookup_commit_reference(the_repository, &old_rev_oid)) {
  55                         cgit_print_error_page(404, "Not found",
  56                                         "Bad commit reference: %s", old_rev);
  57                         return;
  58                 }
  59         } else if (commit->parents && commit->parents->item) {
  60                 oidcpy(&old_rev_oid, &commit->parents->item->object.oid);
  61         } else {
  62                 oidclr(&old_rev_oid, the_repository->hash_algo);
  63         }
  64
  65         if (is_null_oid(&old_rev_oid)) {
  66                 memcpy(rev_range, oid_to_hex(&new_rev_oid), the_hash_algo->hexsz + 1);
  67         } else {
  68                 xsnprintf(rev_range, REV_RANGE_LEN, "%s..%s", oid_to_hex(&old_rev_oid),
  69                         oid_to_hex(&new_rev_oid));
  70         }
  71
  72         patchname = fmt("%s.patch", rev_range);
  73         ctx.page.mimetype = "text/plain";
  74         ctx.page.filename = patchname;
  75         cgit_print_http_headers();
  76
  77         if (ctx.cfg.noplainemail) {
  78                 rev_argv[2] = "--format=format:From %H Mon Sep 17 00:00:00 "
  79                               "2001%nFrom: %an%nDate: %aD%n%w(78,0,1)Subject: "
  80                               "%s%n%n%w(0)%b";
  81         }
  82
  83         repo_init_revisions(the_repository, &rev, NULL);
  84         rev.abbrev = DEFAULT_ABBREV;
  85         rev.verbose_header = 1;
  86         rev.diff = 1;
  87         rev.show_root_diff = 1;
  88         rev.max_parents = 1;
  89         rev.diffopt.output_format |= DIFF_FORMAT_DIFFSTAT |
  90                         DIFF_FORMAT_PATCH | DIFF_FORMAT_SUMMARY;
  91         if (prefix)
  92                 rev.diffopt.stat_sep = fmt("(limited to '%s')\n\n", prefix);
  93         setup_revisions(rev_argc, rev_argv, &rev, NULL);
  94         prepare_revision_walk(&rev);
  95
  96         while ((commit = get_revision(&rev)) != NULL) {
  97                 log_tree_commit(&rev, commit);
  98                 printf("-- \ncgit %s\n\n", cgit_version);
  99         }
 100 }