89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "builtin.h"
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#include "config.h"
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#include "diff.h"
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#include "diff-merges.h"
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#include "commit.h"
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#include "preload-index.h"
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#include "repository.h"
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#include "revision.h"
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static const char diff_files_usage[] =
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"git diff-files [-q] [-0 | -1 | -2 | -3 | -c | --cc] [<common-diff-options>] [<path>...]"
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"\n"
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COMMON_DIFF_OPTIONS_HELP;
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int cmd_diff_files(int argc, const char **argv, const char *prefix)
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{
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struct rev_info rev;
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int result;
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unsigned options = 0;
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if (argc == 2 && !strcmp(argv[1], "-h"))
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usage(diff_files_usage);
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git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
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prepare_repo_settings(the_repository);
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the_repository->settings.command_requires_full_index = 0;
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repo_init_revisions(the_repository, &rev, prefix);
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rev.abbrev = 0;
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/*
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* Consider "intent-to-add" files as new by default, unless
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* explicitly specified in the command line or anywhere else.
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*/
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rev.diffopt.ita_invisible_in_index = 1;
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prefix = precompose_argv_prefix(argc, argv, prefix);
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argc = setup_revisions(argc, argv, &rev, NULL);
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while (1 < argc && argv[1][0] == '-') {
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if (!strcmp(argv[1], "--base"))
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rev.max_count = 1;
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else if (!strcmp(argv[1], "--ours"))
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rev.max_count = 2;
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else if (!strcmp(argv[1], "--theirs"))
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rev.max_count = 3;
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else if (!strcmp(argv[1], "-q"))
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options |= DIFF_SILENT_ON_REMOVED;
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else
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usage(diff_files_usage);
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argv++; argc--;
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}
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if (!rev.diffopt.output_format)
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rev.diffopt.output_format = DIFF_FORMAT_RAW;
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rev.diffopt.rotate_to_strict = 1;
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/*
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* Make sure there are NO revision (i.e. pending object) parameter,
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* rev.max_count is reasonable (0 <= n <= 3), and
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* there is no other revision filtering parameters.
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*/
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if (rev.pending.nr ||
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rev.min_age != -1 || rev.max_age != -1 ||
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3 < rev.max_count)
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usage(diff_files_usage);
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/*
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* "diff-files --base -p" should not combine merges because it
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* was not asked to. "diff-files -c -p" should not densify
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* (the user should ask with "diff-files --cc" explicitly).
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*/
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if (rev.max_count == -1 &&
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(rev.diffopt.output_format & DIFF_FORMAT_PATCH))
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diff_merges_set_dense_combined_if_unset(&rev);
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if (repo_read_index_preload(the_repository, &rev.diffopt.pathspec, 0) < 0)
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die_errno("repo_read_index_preload");
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run_diff_files(&rev, options);
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result = diff_result_code(&rev.diffopt);
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release_revisions(&rev);
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return result;
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}
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