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 abbrev = 0;
  17static int ls_options = 0;
  18const char **pathspec;
  19static int chomp_prefix = 0;
  20static const char *prefix;
  21
  22static const char ls_tree_usage[] =
  23        "git-ls-tree [-d] [-r] [-t] [-z] [--name-only] [--name-status] [--full-name] [--abbrev[=<n>]] <tree-ish> [path...]";
  24
  25static int show_recursive(const char *base, int baselen, const char *pathname)
  26{
  27        const char **s;
  28
  29        if (ls_options & LS_RECURSIVE)
  30                return 1;
  31
  32        s = pathspec;
  33        if (!s)
  34                return 0;
  35
  36        for (;;) {
  37                const char *spec = *s++;
  38                int len, speclen;
  39
  40                if (!spec)
  41                        return 0;
  42                if (strncmp(base, spec, baselen))
  43                        continue;
  44                len = strlen(pathname);
  45                spec += baselen;
  46                speclen = strlen(spec);
  47                if (speclen <= len)
  48                        continue;
  49                if (memcmp(pathname, spec, len))
  50                        continue;
  51                return 1;
  52        }
  53}
  54
  55static int show_tree(unsigned char *sha1, const char *base, int baselen,
  56                     const char *pathname, unsigned mode, int stage)
  57{
  58        int retval = 0;
  59        const char *type = "blob";
  60
  61        if (S_ISDIR(mode)) {
  62                if (show_recursive(base, baselen, pathname)) {
  63                        retval = READ_TREE_RECURSIVE;
  64                        if (!(ls_options & LS_SHOW_TREES))
  65                                return retval;
  66                }
  67                type = "tree";
  68        }
  69        else if (ls_options & LS_TREE_ONLY)
  70                return 0;
  71
  72        if (chomp_prefix &&
  73            (baselen < chomp_prefix || memcmp(prefix, base, chomp_prefix)))
  74                return 0;
  75
  76        if (!(ls_options & LS_NAME_ONLY))
  77                printf("%06o %s %s\t", mode, type,
  78                                abbrev ? find_unique_abbrev(sha1,abbrev)
  79                                        : sha1_to_hex(sha1));
  80        write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
  81                          pathname,
  82                          line_termination, stdout);
  83        putchar(line_termination);
  84        return retval;
  85}
  86
  87int main(int argc, const char **argv)
  88{
  89        unsigned char sha1[20];
  90        struct tree *tree;
  91
  92        prefix = setup_git_directory();
  93        git_config(git_default_config);
  94        if (prefix && *prefix)
  95                chomp_prefix = strlen(prefix);
  96        while (1 < argc && argv[1][0] == '-') {
  97                switch (argv[1][1]) {
  98                case 'z':
  99                        line_termination = 0;
 100                        break;
 101                case 'r':
 102                        ls_options |= LS_RECURSIVE;
 103                        break;
 104                case 'd':
 105                        ls_options |= LS_TREE_ONLY;
 106                        break;
 107                case 't':
 108                        ls_options |= LS_SHOW_TREES;
 109                        break;
 110                case '-':
 111                        if (!strcmp(argv[1]+2, "name-only") ||
 112                            !strcmp(argv[1]+2, "name-status")) {
 113                                ls_options |= LS_NAME_ONLY;
 114                                break;
 115                        }
 116                        if (!strcmp(argv[1]+2, "full-name")) {
 117                                chomp_prefix = 0;
 118                                break;
 119                        }
 120                        if (!strncmp(argv[1]+2, "abbrev=",7)) {
 121                                abbrev = strtoul(argv[1]+9, NULL, 10);
 122                                if (abbrev && abbrev < MINIMUM_ABBREV)
 123                                        abbrev = MINIMUM_ABBREV;
 124                                else if (abbrev > 40)
 125                                        abbrev = 40;
 126                                break;
 127                        }
 128                        if (!strcmp(argv[1]+2, "abbrev")) {
 129                                abbrev = DEFAULT_ABBREV;
 130                                break;
 131                        }
 132                        /* otherwise fallthru */
 133                default:
 134                        usage(ls_tree_usage);
 135                }
 136                argc--; argv++;
 137        }
 138        /* -d -r should imply -t, but -d by itself should not have to. */
 139        if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
 140            ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
 141                ls_options |= LS_SHOW_TREES;
 142
 143        if (argc < 2)
 144                usage(ls_tree_usage);
 145        if (get_sha1(argv[1], sha1) < 0)
 146                usage(ls_tree_usage);
 147
 148        pathspec = get_pathspec(prefix, argv + 2);
 149        tree = parse_tree_indirect(sha1);
 150        if (!tree)
 151                die("not a tree object");
 152        read_tree_recursive(tree, "", 0, 0, pathspec, show_tree);
 153
 154        return 0;
 155}