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 "commit.h"
  10#include "quote.h"
  11#include "builtin.h"
  12#include "parse-options.h"
  13#include "pathspec.h"
  14
  15static int line_termination = '\n';
  16#define LS_RECURSIVE 1
  17#define LS_TREE_ONLY 2
  18#define LS_SHOW_TREES 4
  19#define LS_NAME_ONLY 8
  20#define LS_SHOW_SIZE 16
  21static int abbrev;
  22static int ls_options;
  23static struct pathspec pathspec;
  24static int chomp_prefix;
  25static const char *ls_tree_prefix;
  26
  27static const  char * const ls_tree_usage[] = {
  28        N_("git ls-tree [<options>] <tree-ish> [<path>...]"),
  29        NULL
  30};
  31
  32static int show_recursive(const char *base, int baselen, const char *pathname)
  33{
  34        const char **s;
  35
  36        if (ls_options & LS_RECURSIVE)
  37                return 1;
  38
  39        s = pathspec._raw;
  40        if (!s)
  41                return 0;
  42
  43        for (;;) {
  44                const char *spec = *s++;
  45                int len, speclen;
  46
  47                if (!spec)
  48                        return 0;
  49                if (strncmp(base, spec, baselen))
  50                        continue;
  51                len = strlen(pathname);
  52                spec += baselen;
  53                speclen = strlen(spec);
  54                if (speclen <= len)
  55                        continue;
  56                if (spec[len] && spec[len] != '/')
  57                        continue;
  58                if (memcmp(pathname, spec, len))
  59                        continue;
  60                return 1;
  61        }
  62}
  63
  64static int show_tree(const unsigned char *sha1, struct strbuf *base,
  65                const char *pathname, unsigned mode, int stage, void *context)
  66{
  67        int retval = 0;
  68        int baselen;
  69        const char *type = blob_type;
  70
  71        if (S_ISGITLINK(mode)) {
  72                /*
  73                 * Maybe we want to have some recursive version here?
  74                 *
  75                 * Something similar to this incomplete example:
  76                 *
  77                if (show_subprojects(base, baselen, pathname))
  78                        retval = READ_TREE_RECURSIVE;
  79                 *
  80                 */
  81                type = commit_type;
  82        } else if (S_ISDIR(mode)) {
  83                if (show_recursive(base->buf, base->len, pathname)) {
  84                        retval = READ_TREE_RECURSIVE;
  85                        if (!(ls_options & LS_SHOW_TREES))
  86                                return retval;
  87                }
  88                type = tree_type;
  89        }
  90        else if (ls_options & LS_TREE_ONLY)
  91                return 0;
  92
  93        if (!(ls_options & LS_NAME_ONLY)) {
  94                if (ls_options & LS_SHOW_SIZE) {
  95                        char size_text[24];
  96                        if (!strcmp(type, blob_type)) {
  97                                unsigned long size;
  98                                if (sha1_object_info(sha1, &size) == OBJ_BAD)
  99                                        strcpy(size_text, "BAD");
 100                                else
 101                                        snprintf(size_text, sizeof(size_text),
 102                                                 "%lu", size);
 103                        } else
 104                                strcpy(size_text, "-");
 105                        printf("%06o %s %s %7s\t", mode, type,
 106                               find_unique_abbrev(sha1, abbrev),
 107                               size_text);
 108                } else
 109                        printf("%06o %s %s\t", mode, type,
 110                               find_unique_abbrev(sha1, abbrev));
 111        }
 112        baselen = base->len;
 113        strbuf_addstr(base, pathname);
 114        write_name_quoted_relative(base->buf,
 115                                   chomp_prefix ? ls_tree_prefix : NULL,
 116                                   stdout, line_termination);
 117        strbuf_setlen(base, baselen);
 118        return retval;
 119}
 120
 121int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 122{
 123        unsigned char sha1[20];
 124        struct tree *tree;
 125        int i, full_tree = 0;
 126        const struct option ls_tree_options[] = {
 127                OPT_BIT('d', NULL, &ls_options, N_("only show trees"),
 128                        LS_TREE_ONLY),
 129                OPT_BIT('r', NULL, &ls_options, N_("recurse into subtrees"),
 130                        LS_RECURSIVE),
 131                OPT_BIT('t', NULL, &ls_options, N_("show trees when recursing"),
 132                        LS_SHOW_TREES),
 133                OPT_SET_INT('z', NULL, &line_termination,
 134                            N_("terminate entries with NUL byte"), 0),
 135                OPT_BIT('l', "long", &ls_options, N_("include object size"),
 136                        LS_SHOW_SIZE),
 137                OPT_BIT(0, "name-only", &ls_options, N_("list only filenames"),
 138                        LS_NAME_ONLY),
 139                OPT_BIT(0, "name-status", &ls_options, N_("list only filenames"),
 140                        LS_NAME_ONLY),
 141                OPT_SET_INT(0, "full-name", &chomp_prefix,
 142                            N_("use full path names"), 0),
 143                OPT_BOOL(0, "full-tree", &full_tree,
 144                         N_("list entire tree; not just current directory "
 145                            "(implies --full-name)")),
 146                OPT__ABBREV(&abbrev),
 147                OPT_END()
 148        };
 149
 150        git_config(git_default_config, NULL);
 151        ls_tree_prefix = prefix;
 152        if (prefix && *prefix)
 153                chomp_prefix = strlen(prefix);
 154
 155        argc = parse_options(argc, argv, prefix, ls_tree_options,
 156                             ls_tree_usage, 0);
 157        if (full_tree) {
 158                ls_tree_prefix = prefix = NULL;
 159                chomp_prefix = 0;
 160        }
 161        /* -d -r should imply -t, but -d by itself should not have to. */
 162        if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
 163            ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
 164                ls_options |= LS_SHOW_TREES;
 165
 166        if (argc < 1)
 167                usage_with_options(ls_tree_usage, ls_tree_options);
 168        if (get_sha1(argv[0], sha1))
 169                die("Not a valid object name %s", argv[0]);
 170
 171        /*
 172         * show_recursive() rolls its own matching code and is
 173         * generally ignorant of 'struct pathspec'. The magic mask
 174         * cannot be lifted until it is converted to use
 175         * match_pathspec() or tree_entry_interesting()
 176         */
 177        parse_pathspec(&pathspec, PATHSPEC_GLOB | PATHSPEC_ICASE |
 178                                  PATHSPEC_EXCLUDE,
 179                       PATHSPEC_PREFER_CWD,
 180                       prefix, argv + 1);
 181        for (i = 0; i < pathspec.nr; i++)
 182                pathspec.items[i].nowildcard_len = pathspec.items[i].len;
 183        pathspec.has_wildcard = 0;
 184        tree = parse_tree_indirect(sha1);
 185        if (!tree)
 186                die("not a tree object");
 187        return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
 188}