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