157 lines
3.5 KiB
C
157 lines
3.5 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 "cache.h"
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#include "blob.h"
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#include "tree.h"
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#include "quote.h"
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#include "builtin.h"
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static int line_termination = '\n';
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#define LS_RECURSIVE 1
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#define LS_TREE_ONLY 2
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#define LS_SHOW_TREES 4
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#define LS_NAME_ONLY 8
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static int abbrev = 0;
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static int ls_options = 0;
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static const char **pathspec;
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static int chomp_prefix = 0;
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static const char *prefix;
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static const char ls_tree_usage[] =
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"git-ls-tree [-d] [-r] [-t] [-z] [--name-only] [--name-status] [--full-name] [--abbrev[=<n>]] <tree-ish> [path...]";
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static int show_recursive(const char *base, int baselen, const char *pathname)
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{
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const char **s;
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if (ls_options & LS_RECURSIVE)
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return 1;
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s = pathspec;
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if (!s)
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return 0;
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for (;;) {
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const char *spec = *s++;
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int len, speclen;
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if (!spec)
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return 0;
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if (strncmp(base, spec, baselen))
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continue;
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len = strlen(pathname);
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spec += baselen;
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speclen = strlen(spec);
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if (speclen <= len)
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continue;
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if (memcmp(pathname, spec, len))
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continue;
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return 1;
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}
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}
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static int show_tree(const unsigned char *sha1, const char *base, int baselen,
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const char *pathname, unsigned mode, int stage)
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{
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int retval = 0;
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const char *type = blob_type;
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if (S_ISDIR(mode)) {
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if (show_recursive(base, baselen, pathname)) {
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retval = READ_TREE_RECURSIVE;
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if (!(ls_options & LS_SHOW_TREES))
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return retval;
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}
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type = tree_type;
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}
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else if (ls_options & LS_TREE_ONLY)
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return 0;
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if (chomp_prefix &&
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(baselen < chomp_prefix || memcmp(prefix, base, chomp_prefix)))
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return 0;
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if (!(ls_options & LS_NAME_ONLY))
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printf("%06o %s %s\t", mode, type,
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abbrev ? find_unique_abbrev(sha1,abbrev)
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: sha1_to_hex(sha1));
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write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
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pathname,
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line_termination, stdout);
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putchar(line_termination);
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return retval;
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}
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int cmd_ls_tree(int argc, const char **argv, char **envp)
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{
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unsigned char sha1[20];
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struct tree *tree;
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prefix = setup_git_directory();
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git_config(git_default_config);
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if (prefix && *prefix)
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chomp_prefix = strlen(prefix);
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while (1 < argc && argv[1][0] == '-') {
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switch (argv[1][1]) {
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case 'z':
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line_termination = 0;
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break;
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case 'r':
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ls_options |= LS_RECURSIVE;
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break;
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case 'd':
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ls_options |= LS_TREE_ONLY;
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break;
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case 't':
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ls_options |= LS_SHOW_TREES;
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break;
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case '-':
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if (!strcmp(argv[1]+2, "name-only") ||
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!strcmp(argv[1]+2, "name-status")) {
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ls_options |= LS_NAME_ONLY;
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break;
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}
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if (!strcmp(argv[1]+2, "full-name")) {
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chomp_prefix = 0;
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break;
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}
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if (!strncmp(argv[1]+2, "abbrev=",7)) {
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abbrev = strtoul(argv[1]+9, NULL, 10);
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if (abbrev && abbrev < MINIMUM_ABBREV)
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abbrev = MINIMUM_ABBREV;
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else if (abbrev > 40)
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abbrev = 40;
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break;
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}
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if (!strcmp(argv[1]+2, "abbrev")) {
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abbrev = DEFAULT_ABBREV;
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break;
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}
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/* otherwise fallthru */
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default:
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usage(ls_tree_usage);
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}
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argc--; argv++;
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}
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/* -d -r should imply -t, but -d by itself should not have to. */
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if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
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((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
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ls_options |= LS_SHOW_TREES;
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if (argc < 2)
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usage(ls_tree_usage);
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if (get_sha1(argv[1], sha1))
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die("Not a valid object name %s", argv[1]);
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pathspec = get_pathspec(prefix, argv + 2);
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tree = parse_tree_indirect(sha1);
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if (!tree)
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die("not a tree object");
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read_tree_recursive(tree, "", 0, 0, pathspec, show_tree);
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return 0;
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}
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