| /* |
| * GIT - The information manager from hell |
| * |
| * Copyright (C) Linus Torvalds, 2005 |
| */ |
| #define USE_THE_INDEX_COMPATIBILITY_MACROS |
| #include "cache.h" |
| #include "config.h" |
| #include "diff.h" |
| #include "commit.h" |
| #include "revision.h" |
| #include "builtin.h" |
| #include "submodule.h" |
| |
| static const char diff_files_usage[] = |
| "git diff-files [-q] [-0 | -1 | -2 | -3 | -c | --cc] [<common-diff-options>] [<path>...]" |
| COMMON_DIFF_OPTIONS_HELP; |
| |
| int cmd_diff_files(int argc, const char **argv, const char *prefix) |
| { |
| struct rev_info rev; |
| int result; |
| unsigned options = 0; |
| |
| if (argc == 2 && !strcmp(argv[1], "-h")) |
| usage(diff_files_usage); |
| |
| git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ |
| repo_init_revisions(the_repository, &rev, prefix); |
| rev.abbrev = 0; |
| precompose_argv(argc, argv); |
| |
| argc = setup_revisions(argc, argv, &rev, NULL); |
| while (1 < argc && argv[1][0] == '-') { |
| if (!strcmp(argv[1], "--base")) |
| rev.max_count = 1; |
| else if (!strcmp(argv[1], "--ours")) |
| rev.max_count = 2; |
| else if (!strcmp(argv[1], "--theirs")) |
| rev.max_count = 3; |
| else if (!strcmp(argv[1], "-q")) |
| options |= DIFF_SILENT_ON_REMOVED; |
| else |
| usage(diff_files_usage); |
| argv++; argc--; |
| } |
| if (!rev.diffopt.output_format) |
| rev.diffopt.output_format = DIFF_FORMAT_RAW; |
| |
| /* |
| * Make sure there are NO revision (i.e. pending object) parameter, |
| * rev.max_count is reasonable (0 <= n <= 3), and |
| * there is no other revision filtering parameters. |
| */ |
| if (rev.pending.nr || |
| rev.min_age != -1 || rev.max_age != -1 || |
| 3 < rev.max_count) |
| usage(diff_files_usage); |
| |
| /* |
| * "diff-files --base -p" should not combine merges because it |
| * was not asked to. "diff-files -c -p" should not densify |
| * (the user should ask with "diff-files --cc" explicitly). |
| */ |
| if (rev.max_count == -1 && !rev.combine_merges && |
| (rev.diffopt.output_format & DIFF_FORMAT_PATCH)) |
| rev.combine_merges = rev.dense_combined_merges = 1; |
| |
| if (read_cache_preload(&rev.diffopt.pathspec) < 0) { |
| perror("read_cache_preload"); |
| return -1; |
| } |
| result = run_diff_files(&rev, options); |
| return diff_result_code(&rev.diffopt, result); |
| } |