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![Nguyễn Thái Ngọc Duy](/assets/img/avatar_default.png)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
189 lines
4.8 KiB
C
189 lines
4.8 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 "commit.h"
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#include "quote.h"
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#include "builtin.h"
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#include "parse-options.h"
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#include "pathspec.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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#define LS_SHOW_SIZE 16
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static int abbrev;
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static int ls_options;
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static struct pathspec pathspec;
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static int chomp_prefix;
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static const char *ls_tree_prefix;
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static const char * const ls_tree_usage[] = {
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N_("git ls-tree [<options>] <tree-ish> [<path>...]"),
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NULL
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};
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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._raw;
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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 (spec[len] && spec[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, struct strbuf *base,
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const char *pathname, unsigned mode, int stage, void *context)
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{
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int retval = 0;
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int baselen;
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const char *type = blob_type;
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if (S_ISGITLINK(mode)) {
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/*
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* Maybe we want to have some recursive version here?
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*
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* Something similar to this incomplete example:
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*
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if (show_subprojects(base, baselen, pathname))
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retval = READ_TREE_RECURSIVE;
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*
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*/
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type = commit_type;
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} else if (S_ISDIR(mode)) {
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if (show_recursive(base->buf, base->len, 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 (!(ls_options & LS_NAME_ONLY)) {
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if (ls_options & LS_SHOW_SIZE) {
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char size_text[24];
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if (!strcmp(type, blob_type)) {
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unsigned long size;
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if (sha1_object_info(sha1, &size) == OBJ_BAD)
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strcpy(size_text, "BAD");
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else
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snprintf(size_text, sizeof(size_text),
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"%lu", size);
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} else
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strcpy(size_text, "-");
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printf("%06o %s %s %7s\t", mode, type,
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find_unique_abbrev(sha1, abbrev),
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size_text);
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} else
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printf("%06o %s %s\t", mode, type,
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find_unique_abbrev(sha1, abbrev));
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}
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baselen = base->len;
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strbuf_addstr(base, pathname);
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write_name_quoted_relative(base->buf,
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chomp_prefix ? ls_tree_prefix : NULL,
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stdout, line_termination);
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strbuf_setlen(base, baselen);
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return retval;
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}
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int cmd_ls_tree(int argc, const char **argv, const char *prefix)
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{
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unsigned char sha1[20];
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struct tree *tree;
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int i, full_tree = 0;
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const struct option ls_tree_options[] = {
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OPT_BIT('d', NULL, &ls_options, N_("only show trees"),
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LS_TREE_ONLY),
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OPT_BIT('r', NULL, &ls_options, N_("recurse into subtrees"),
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LS_RECURSIVE),
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OPT_BIT('t', NULL, &ls_options, N_("show trees when recursing"),
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LS_SHOW_TREES),
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OPT_SET_INT('z', NULL, &line_termination,
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N_("terminate entries with NUL byte"), 0),
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OPT_BIT('l', "long", &ls_options, N_("include object size"),
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LS_SHOW_SIZE),
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OPT_BIT(0, "name-only", &ls_options, N_("list only filenames"),
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LS_NAME_ONLY),
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OPT_BIT(0, "name-status", &ls_options, N_("list only filenames"),
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LS_NAME_ONLY),
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OPT_SET_INT(0, "full-name", &chomp_prefix,
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N_("use full path names"), 0),
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OPT_BOOL(0, "full-tree", &full_tree,
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N_("list entire tree; not just current directory "
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"(implies --full-name)")),
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OPT__ABBREV(&abbrev),
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OPT_END()
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};
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git_config(git_default_config, NULL);
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ls_tree_prefix = prefix;
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if (prefix && *prefix)
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chomp_prefix = strlen(prefix);
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argc = parse_options(argc, argv, prefix, ls_tree_options,
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ls_tree_usage, 0);
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if (full_tree) {
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ls_tree_prefix = prefix = NULL;
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chomp_prefix = 0;
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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 < 1)
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usage_with_options(ls_tree_usage, ls_tree_options);
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if (get_sha1(argv[0], sha1))
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die("Not a valid object name %s", argv[0]);
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/*
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* show_recursive() rolls its own matching code and is
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* generally ignorant of 'struct pathspec'. The magic mask
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* cannot be lifted until it is converted to use
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* match_pathspec() or tree_entry_interesting()
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*/
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parse_pathspec(&pathspec, PATHSPEC_GLOB | PATHSPEC_ICASE |
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PATHSPEC_EXCLUDE,
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PATHSPEC_PREFER_CWD,
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prefix, argv + 1);
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for (i = 0; i < pathspec.nr; i++)
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pathspec.items[i].nowildcard_len = pathspec.items[i].len;
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pathspec.has_wildcard = 0;
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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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return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL);
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}
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