diff options
Diffstat (limited to 'builtin-diff-tree.c')
| -rw-r--r-- | builtin-diff-tree.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/builtin-diff-tree.c b/builtin-diff-tree.c deleted file mode 100644 index 79cedb72c4..0000000000 --- a/builtin-diff-tree.c +++ /dev/null @@ -1,169 +0,0 @@ -#include "cache.h" -#include "diff.h" -#include "commit.h" -#include "log-tree.h" -#include "builtin.h" - -static struct rev_info log_tree_opt; - -static int diff_tree_commit_sha1(const unsigned char *sha1) -{ - struct commit *commit = lookup_commit_reference(sha1); - if (!commit) - return -1; - return log_tree_commit(&log_tree_opt, commit); -} - -/* Diff one or more commits. */ -static int stdin_diff_commit(struct commit *commit, char *line, int len) -{ - unsigned char sha1[20]; - if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) { - /* Graft the fake parents locally to the commit */ - int pos = 41; - struct commit_list **pptr, *parents; - - /* Free the real parent list */ - for (parents = commit->parents; parents; ) { - struct commit_list *tmp = parents->next; - free(parents); - parents = tmp; - } - commit->parents = NULL; - pptr = &(commit->parents); - while (line[pos] && !get_sha1_hex(line + pos, sha1)) { - struct commit *parent = lookup_commit(sha1); - if (parent) { - pptr = &commit_list_insert(parent, pptr)->next; - } - pos += 41; - } - } - return log_tree_commit(&log_tree_opt, commit); -} - -/* Diff two trees. */ -static int stdin_diff_trees(struct tree *tree1, char *line, int len) -{ - unsigned char sha1[20]; - struct tree *tree2; - if (len != 82 || !isspace(line[40]) || get_sha1_hex(line + 41, sha1)) - return error("Need exactly two trees, separated by a space"); - tree2 = lookup_tree(sha1); - if (!tree2 || parse_tree(tree2)) - return -1; - printf("%s %s\n", sha1_to_hex(tree1->object.sha1), - sha1_to_hex(tree2->object.sha1)); - diff_tree_sha1(tree1->object.sha1, tree2->object.sha1, - "", &log_tree_opt.diffopt); - log_tree_diff_flush(&log_tree_opt); - return 0; -} - -static int diff_tree_stdin(char *line) -{ - int len = strlen(line); - unsigned char sha1[20]; - struct object *obj; - - if (!len || line[len-1] != '\n') - return -1; - line[len-1] = 0; - if (get_sha1_hex(line, sha1)) - return -1; - obj = lookup_unknown_object(sha1); - if (!obj || !obj->parsed) - obj = parse_object(sha1); - if (!obj) - return -1; - if (obj->type == OBJ_COMMIT) - return stdin_diff_commit((struct commit *)obj, line, len); - if (obj->type == OBJ_TREE) - return stdin_diff_trees((struct tree *)obj, line, len); - error("Object %s is a %s, not a commit or tree", - sha1_to_hex(sha1), typename(obj->type)); - return -1; -} - -static const char diff_tree_usage[] = -"git diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] " -"[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n" -" -r diff recursively\n" -" --root include the initial commit as diff against /dev/null\n" -COMMON_DIFF_OPTIONS_HELP; - -int cmd_diff_tree(int argc, const char **argv, const char *prefix) -{ - int nr_sha1; - char line[1000]; - struct object *tree1, *tree2; - static struct rev_info *opt = &log_tree_opt; - int read_stdin = 0; - - init_revisions(opt, prefix); - git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ - opt->abbrev = 0; - opt->diff = 1; - argc = setup_revisions(argc, argv, opt, NULL); - - while (--argc > 0) { - const char *arg = *++argv; - - if (!strcmp(arg, "--stdin")) { - read_stdin = 1; - continue; - } - usage(diff_tree_usage); - } - - if (!opt->diffopt.output_format) - opt->diffopt.output_format = DIFF_FORMAT_RAW; - - /* - * NOTE! We expect "a ^b" to be equal to "a..b", so we - * reverse the order of the objects if the second one - * is marked UNINTERESTING. - */ - nr_sha1 = opt->pending.nr; - switch (nr_sha1) { - case 0: - if (!read_stdin) - usage(diff_tree_usage); - break; - case 1: - tree1 = opt->pending.objects[0].item; - diff_tree_commit_sha1(tree1->sha1); - break; - case 2: - tree1 = opt->pending.objects[0].item; - tree2 = opt->pending.objects[1].item; - if (tree2->flags & UNINTERESTING) { - struct object *tmp = tree2; - tree2 = tree1; - tree1 = tmp; - } - diff_tree_sha1(tree1->sha1, - tree2->sha1, - "", &opt->diffopt); - log_tree_diff_flush(opt); - break; - } - - if (read_stdin) { - if (opt->diffopt.detect_rename) - opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE | - DIFF_SETUP_USE_CACHE); - while (fgets(line, sizeof(line), stdin)) { - unsigned char sha1[20]; - - if (get_sha1_hex(line, sha1)) { - fputs(line, stdout); - fflush(stdout); - } - else - diff_tree_stdin(line); - } - } - - return diff_result_code(&opt->diffopt, 0); -} |