Andrew's git - gitweb.git/blob

   1/*
   2 * GIT - The information manager from hell
   3 *
   4 * Copyright (C) Linus Torvalds, 2005
   5 */
   6#include "cache.h"
   7#include "blob.h"
   8#include "tree.h"
   9#include "quote.h"
  10
  11static int line_termination = '\n';
  12#define LS_RECURSIVE 1
  13#define LS_TREE_ONLY 2
  14#define LS_SHOW_TREES 4
  15#define LS_NAME_ONLY 8
  16static int ls_options = 0;
  17const char **pathspec;
  18static int chomp_prefix = 0;
  19static const char *prefix;
  20
  21static const char ls_tree_usage[] =
  22        "git-ls-tree [-d] [-r] [-t] [-z] [--name-only] [--name-status] [--full-name] <tree-ish> [path...]";
  23
  24static int show_recursive(const char *base, int baselen, const char *pathname)
  25{
  26        const char **s;
  27
  28        if (ls_options & LS_RECURSIVE)
  29                return 1;
  30
  31        s = pathspec;
  32        if (!s)
  33                return 0;
  34
  35        for (;;) {
  36                const char *spec = *s++;
  37                int len, speclen;
  38
  39                if (!spec)
  40                        return 0;
  41                if (strncmp(base, spec, baselen))
  42                        continue;
  43                len = strlen(pathname);
  44                spec += baselen;
  45                speclen = strlen(spec);
  46                if (speclen <= len)
  47                        continue;
  48                if (memcmp(pathname, spec, len))
  49                        continue;
  50                return 1;
  51        }
  52}
  53
  54static int show_tree(unsigned char *sha1, const char *base, int baselen,
  55                     const char *pathname, unsigned mode, int stage)
  56{
  57        int retval = 0;
  58        const char *type = "blob";
  59
  60        if (S_ISDIR(mode)) {
  61                if (show_recursive(base, baselen, pathname)) {
  62                        retval = READ_TREE_RECURSIVE;
  63                        if (!(ls_options & LS_SHOW_TREES))
  64                                return retval;
  65                }
  66                type = "tree";
  67        }
  68        else if (ls_options & LS_TREE_ONLY)
  69                return 0;
  70
  71        if (chomp_prefix &&
  72            (baselen < chomp_prefix || memcmp(prefix, base, chomp_prefix)))
  73                return 0;
  74
  75        if (!(ls_options & LS_NAME_ONLY))
  76                printf("%06o %s %s\t", mode, type, sha1_to_hex(sha1));
  77        write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
  78                          pathname,
  79                          line_termination, stdout);
  80        putchar(line_termination);
  81        return retval;
  82}
  83
  84int main(int argc, const char **argv)
  85{
  86        unsigned char sha1[20];
  87        struct tree *tree;
  88
  89        prefix = setup_git_directory();
  90        if (prefix && *prefix)
  91                chomp_prefix = strlen(prefix);
  92        while (1 < argc && argv[1][0] == '-') {
  93                switch (argv[1][1]) {
  94                case 'z':
  95                        line_termination = 0;
  96                        break;
  97                case 'r':
  98                        ls_options |= LS_RECURSIVE;
  99                        break;
 100                case 'd':
 101                        ls_options |= LS_TREE_ONLY;
 102                        break;
 103                case 't':
 104                        ls_options |= LS_SHOW_TREES;
 105                        break;
 106                case '-':
 107                        if (!strcmp(argv[1]+2, "name-only") ||
 108                            !strcmp(argv[1]+2, "name-status")) {
 109                                ls_options |= LS_NAME_ONLY;
 110                                break;
 111                        }
 112                        if (!strcmp(argv[1]+2, "full-name")) {
 113                                chomp_prefix = 0;
 114                                break;
 115                        }
 116                        /* otherwise fallthru */
 117                default:
 118                        usage(ls_tree_usage);
 119                }
 120                argc--; argv++;
 121        }
 122        /* -d -r should imply -t, but -d by itself should not have to. */
 123        if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
 124            ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
 125                ls_options |= LS_SHOW_TREES;
 126
 127        if (argc < 2)
 128                usage(ls_tree_usage);
 129        if (get_sha1(argv[1], sha1) < 0)
 130                usage(ls_tree_usage);
 131
 132        pathspec = get_pathspec(prefix, argv + 2);
 133        tree = parse_tree_indirect(sha1);
 134        if (!tree)
 135                die("not a tree object");
 136        read_tree_recursive(tree, "", 0, 0, pathspec, show_tree);
 137
 138        return 0;
 139}