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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 "quote.h"
static int line_termination = '\n';
#define LS_RECURSIVE 1
#define LS_TREE_ONLY 2
#define LS_SHOW_TREES 4
static int ls_options = 0;
const char **pathspec;
static const char ls_tree_usage[] =
"git-ls-tree [-d] [-r] [-t] [-z] <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(unsigned char *sha1, const char *base, int baselen, const char *pathname, unsigned mode, int stage)
{
int retval = 0;
const char *type = "blob";
if (S_ISDIR(mode)) {
if (show_recursive(base, baselen, pathname)) {
retval = READ_TREE_RECURSIVE;
if (!(ls_options & LS_SHOW_TREES))
return retval;
}
type = "tree";
}
printf("%06o %s %s\t", mode, type, sha1_to_hex(sha1));
write_name_quoted(base, baselen, pathname, line_termination, stdout);
putchar(line_termination);
return retval;
}
int main(int argc, const char **argv)
{
const char *prefix;
unsigned char sha1[20];
char *buf;
unsigned long size;
prefix = setup_git_directory();
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;
default:
usage(ls_tree_usage);
}
argc--; argv++;
}
if (argc < 2)
usage(ls_tree_usage);
if (get_sha1(argv[1], sha1) < 0)
usage(ls_tree_usage);
pathspec = get_pathspec(prefix, argv + 2);
buf = read_object_with_reference(sha1, "tree", &size, NULL);
if (!buf)
die("not a tree object");
read_tree_recursive(buf, size, "", 0, 0, pathspec, show_tree);
return 0;
}
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