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/* * GIT - The information manager from hell * * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" #include "commit.h" #include "tree.h" #include "builtin.h" #include "utf8.h" #define BLOCKING (1ul << 14) /* * 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 void new_parent(struct commit *parent, struct commit_list **parents_p) { unsigned char *sha1 = parent->object.sha1; struct commit_list *parents; for (parents = *parents_p; parents; parents = parents->next) { if (parents->item == parent) { error("duplicate parent %s ignored", sha1_to_hex(sha1)); return; } parents_p = &parents->next; } 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 cmd_commit_tree(int argc, const char **argv, const char *prefix) { int i; struct commit_list *parents = NULL; unsigned char tree_sha1[20]; unsigned char commit_sha1[20]; struct strbuf buffer; int encoding_is_utf8; git_config(git_default_config, NULL); if (argc < 2) usage(commit_tree_usage); if (get_sha1(argv[1], tree_sha1)) die("Not a valid object name %s", argv[1]); check_valid(tree_sha1, OBJ_TREE); 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); if (get_sha1(b, sha1)) die("Not a valid object name %s", b); check_valid(sha1, OBJ_COMMIT); new_parent(lookup_commit(sha1), &parents); } /* 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_sha1)); /* * 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 */ strbuf_addf(&buffer, "author %s\n", git_author_info(IDENT_ERROR_ON_NO_NAME)); 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 */ if (strbuf_read(&buffer, 0, 0) < 0) die("git-commit-tree: read returned %s", strerror(errno)); /* And check the encoding */ if (encoding_is_utf8 && !is_utf8(buffer.buf)) fprintf(stderr, commit_utf8_warn); if (!write_sha1_file(buffer.buf, buffer.len, commit_type, commit_sha1)) { printf("%s\n", sha1_to_hex(commit_sha1)); return 0; } else return 1; }
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