Merge branch 'lt/commit-tree-guess-utf-8'
[gitweb.git] / builtin / commit-tree.c
index 90dac349a3137405baaea63bfb6c798d2f8c92a3..eac901a0ee15f72eacffea32d1b327c7a336f19c 100644 (file)
@@ -8,21 +8,9 @@
 #include "tree.h"
 #include "builtin.h"
 #include "utf8.h"
+#include "gpg-interface.h"
 
-/*
- * FIXME! Share the code with "write-tree.c"
- */
-static void check_valid(unsigned char *sha1, enum object_type expect)
-{
-       enum object_type type = sha1_object_info(sha1, NULL);
-       if (type < 0)
-               die("%s is not a valid object", sha1_to_hex(sha1));
-       if (type != expect)
-               die("%s is not a valid '%s' object", sha1_to_hex(sha1),
-                   typename(expect));
-}
-
-static const char commit_tree_usage[] = "git commit-tree <sha1> [-p <sha1>]* < changelog";
+static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-S<signer>] [-m <message>] [-F <file>] <sha1> <changelog";
 
 static void new_parent(struct commit *parent, struct commit_list **parents_p)
 {
@@ -38,96 +26,100 @@ static void new_parent(struct commit *parent, struct commit_list **parents_p)
        commit_list_insert(parent, parents_p);
 }
 
-static const char commit_utf8_warn[] =
-"Warning: commit message does not conform to UTF-8.\n"
-"You may want to amend it after fixing the message, or set the config\n"
-"variable i18n.commitencoding to the encoding your project uses.\n";
-
-int commit_tree(const char *msg, unsigned char *tree,
-               struct commit_list *parents, unsigned char *ret,
-               const char *author)
+static int commit_tree_config(const char *var, const char *value, void *cb)
 {
-       int result;
-       int encoding_is_utf8;
-       struct strbuf buffer;
-
-       check_valid(tree, OBJ_TREE);
-
-       /* Not having i18n.commitencoding is the same as having utf-8 */
-       encoding_is_utf8 = is_encoding_utf8(git_commit_encoding);
-
-       strbuf_init(&buffer, 8192); /* should avoid reallocs for the headers */
-       strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree));
-
-       /*
-        * NOTE! This ordering means that the same exact tree merged with a
-        * different order of parents will be a _different_ changeset even
-        * if everything else stays the same.
-        */
-       while (parents) {
-               struct commit_list *next = parents->next;
-               strbuf_addf(&buffer, "parent %s\n",
-                       sha1_to_hex(parents->item->object.sha1));
-               free(parents);
-               parents = next;
-       }
-
-       /* Person/date information */
-       if (!author)
-               author = git_author_info(IDENT_ERROR_ON_NO_NAME);
-       strbuf_addf(&buffer, "author %s\n", author);
-       strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
-       if (!encoding_is_utf8)
-               strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
-       strbuf_addch(&buffer, '\n');
-
-       /* And add the comment */
-       strbuf_addstr(&buffer, msg);
-
-       /* And check the encoding */
-       if (encoding_is_utf8 && !is_utf8(buffer.buf))
-               fprintf(stderr, commit_utf8_warn);
-
-       result = write_sha1_file(buffer.buf, buffer.len, commit_type, ret);
-       strbuf_release(&buffer);
-       return result;
+       int status = git_gpg_config(var, value, NULL);
+       if (status)
+               return status;
+       return git_default_config(var, value, cb);
 }
 
 int cmd_commit_tree(int argc, const char **argv, const char *prefix)
 {
-       int i;
+       int i, got_tree = 0;
        struct commit_list *parents = NULL;
        unsigned char tree_sha1[20];
        unsigned char commit_sha1[20];
        struct strbuf buffer = STRBUF_INIT;
+       const char *sign_commit = NULL;
 
-       git_config(git_default_config, NULL);
+       git_config(commit_tree_config, NULL);
 
        if (argc < 2 || !strcmp(argv[1], "-h"))
                usage(commit_tree_usage);
-       if (get_sha1(argv[1], tree_sha1))
-               die("Not a valid object name %s", argv[1]);
 
-       for (i = 2; i < argc; i += 2) {
-               unsigned char sha1[20];
-               const char *a, *b;
-               a = argv[i]; b = argv[i+1];
-               if (!b || strcmp(a, "-p"))
-                       usage(commit_tree_usage);
+       for (i = 1; i < argc; i++) {
+               const char *arg = argv[i];
+               if (!strcmp(arg, "-p")) {
+                       unsigned char sha1[20];
+                       if (argc <= ++i)
+                               usage(commit_tree_usage);
+                       if (get_sha1_commit(argv[i], sha1))
+                               die("Not a valid object name %s", argv[i]);
+                       assert_sha1_type(sha1, OBJ_COMMIT);
+                       new_parent(lookup_commit(sha1), &parents);
+                       continue;
+               }
 
-               if (get_sha1(b, sha1))
-                       die("Not a valid object name %s", b);
-               check_valid(sha1, OBJ_COMMIT);
-               new_parent(lookup_commit(sha1), &parents);
-       }
+               if (!memcmp(arg, "-S", 2)) {
+                       sign_commit = arg + 2;
+                       continue;
+               }
+
+               if (!strcmp(arg, "-m")) {
+                       if (argc <= ++i)
+                               usage(commit_tree_usage);
+                       if (buffer.len)
+                               strbuf_addch(&buffer, '\n');
+                       strbuf_addstr(&buffer, argv[i]);
+                       strbuf_complete_line(&buffer);
+                       continue;
+               }
 
-       if (strbuf_read(&buffer, 0, 0) < 0)
-               die_errno("git commit-tree: failed to read");
+               if (!strcmp(arg, "-F")) {
+                       int fd;
+
+                       if (argc <= ++i)
+                               usage(commit_tree_usage);
+                       if (buffer.len)
+                               strbuf_addch(&buffer, '\n');
+                       if (!strcmp(argv[i], "-"))
+                               fd = 0;
+                       else {
+                               fd = open(argv[i], O_RDONLY);
+                               if (fd < 0)
+                                       die_errno("git commit-tree: failed to open '%s'",
+                                                 argv[i]);
+                       }
+                       if (strbuf_read(&buffer, fd, 0) < 0)
+                               die_errno("git commit-tree: failed to read '%s'",
+                                         argv[i]);
+                       if (fd && close(fd))
+                               die_errno("git commit-tree: failed to close '%s'",
+                                         argv[i]);
+                       strbuf_complete_line(&buffer);
+                       continue;
+               }
+
+               if (get_sha1_tree(arg, tree_sha1))
+                       die("Not a valid object name %s", arg);
+               if (got_tree)
+                       die("Cannot give more than one trees");
+               got_tree = 1;
+       }
 
-       if (!commit_tree(buffer.buf, tree_sha1, parents, commit_sha1, NULL)) {
-               printf("%s\n", sha1_to_hex(commit_sha1));
-               return 0;
+       if (!buffer.len) {
+               if (strbuf_read(&buffer, 0, 0) < 0)
+                       die_errno("git commit-tree: failed to read");
        }
-       else
+
+       if (commit_tree(&buffer, tree_sha1, parents, commit_sha1,
+                       NULL, sign_commit)) {
+               strbuf_release(&buffer);
                return 1;
+       }
+
+       printf("%s\n", sha1_to_hex(commit_sha1));
+       strbuf_release(&buffer);
+       return 0;
 }