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/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
#include "blob.h"
#include "tree.h"
#include "commit.h"
#include "quote.h"
#include "builtin.h"
static int line_termination = '\n';
#define LS_RECURSIVE 1
#define LS_TREE_ONLY 2
#define LS_SHOW_TREES 4
#define LS_NAME_ONLY 8
static int abbrev;
static int ls_options;
static const char **pathspec;
static int chomp_prefix;
static const char *ls_tree_prefix;
static const char ls_tree_usage[] =
"git-ls-tree [-d] [-r] [-t] [-z] [--name-only] [--name-status] [--full-name] [--abbrev[=<n>]] <tree-ish> [path...]";
static int show_recursive(const char *base, int baselen, const char *pathname)
{
const char **s;
if (ls_options & LS_RECURSIVE)
return 1;
s = pathspec;
if (!s)
return 0;
for (;;) {
const char *spec = *s++;
int len, speclen;
if (!spec)
return 0;
if (strncmp(base, spec, baselen))
continue;
len = strlen(pathname);
spec += baselen;
speclen = strlen(spec);
if (speclen <= len)
continue;
if (memcmp(pathname, spec, len))
continue;
return 1;
}
}
static int show_tree(const unsigned char *sha1, const char *base, int baselen,
const char *pathname, unsigned mode, int stage)
{
int retval = 0;
const char *type = blob_type;
if (S_ISDIRLNK(mode)) {
/*
* Maybe we want to have some recursive version here?
*
* Something like:
*
if (show_subprojects(base, baselen, pathname)) {
if (fork()) {
chdir(base);
exec ls-tree;
}
waitpid();
}
*
* ..or similar..
*/
type = commit_type;
} else if (S_ISDIR(mode)) {
if (show_recursive(base, baselen, pathname)) {
retval = READ_TREE_RECURSIVE;
if (!(ls_options & LS_SHOW_TREES))
return retval;
}
type = tree_type;
}
else if (ls_options & LS_TREE_ONLY)
return 0;
if (chomp_prefix &&
(baselen < chomp_prefix || memcmp(ls_tree_prefix, base, chomp_prefix)))
return 0;
if (!(ls_options & LS_NAME_ONLY))
printf("%06o %s %s\t", mode, type,
abbrev ? find_unique_abbrev(sha1,abbrev)
: sha1_to_hex(sha1));
write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
pathname,
line_termination, stdout);
putchar(line_termination);
return retval;
}
int cmd_ls_tree(int argc, const char **argv, const char *prefix)
{
unsigned char sha1[20];
struct tree *tree;
git_config(git_default_config);
ls_tree_prefix = prefix;
if (prefix && *prefix)
chomp_prefix = strlen(prefix);
while (1 < argc && argv[1][0] == '-') {
switch (argv[1][1]) {
case 'z':
line_termination = 0;
break;
case 'r':
ls_options |= LS_RECURSIVE;
break;
case 'd':
ls_options |= LS_TREE_ONLY;
break;
case 't':
ls_options |= LS_SHOW_TREES;
break;
case '-':
if (!strcmp(argv[1]+2, "name-only") ||
!strcmp(argv[1]+2, "name-status")) {
ls_options |= LS_NAME_ONLY;
break;
}
if (!strcmp(argv[1]+2, "full-name")) {
chomp_prefix = 0;
break;
}
if (!prefixcmp(argv[1]+2, "abbrev=")) {
abbrev = strtoul(argv[1]+9, NULL, 10);
if (abbrev && abbrev < MINIMUM_ABBREV)
abbrev = MINIMUM_ABBREV;
else if (abbrev > 40)
abbrev = 40;
break;
}
if (!strcmp(argv[1]+2, "abbrev")) {
abbrev = DEFAULT_ABBREV;
break;
}
/* otherwise fallthru */
default:
usage(ls_tree_usage);
}
argc--; argv++;
}
/* -d -r should imply -t, but -d by itself should not have to. */
if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
ls_options |= LS_SHOW_TREES;
if (argc < 2)
usage(ls_tree_usage);
if (get_sha1(argv[1], sha1))
die("Not a valid object name %s", argv[1]);
pathspec = get_pathspec(prefix, argv + 2);
tree = parse_tree_indirect(sha1);
if (!tree)
die("not a tree object");
read_tree_recursive(tree, "", 0, 0, pathspec, show_tree);
return 0;
}
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