diff options
Diffstat (limited to 'builtin-ls-tree.c')
| -rw-r--r-- | builtin-ls-tree.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/builtin-ls-tree.c b/builtin-ls-tree.c new file mode 100644 index 0000000000..cb4be4fabb --- /dev/null +++ b/builtin-ls-tree.c @@ -0,0 +1,197 @@ +/* + * 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 +#define LS_SHOW_SIZE 16 +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] [-l] [-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; + unsigned long size; + + if (S_ISGITLINK(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)) { + if (ls_options & LS_SHOW_SIZE) { + if (!strcmp(type, blob_type)) { + sha1_object_info(sha1, &size); + printf("%06o %s %s %7lu\t", mode, type, + abbrev ? find_unique_abbrev(sha1, abbrev) + : sha1_to_hex(sha1), + size); + } else + printf("%06o %s %s %7c\t", mode, type, + abbrev ? find_unique_abbrev(sha1, abbrev) + : sha1_to_hex(sha1), + '-'); + } else + 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 'l': + ls_options |= LS_SHOW_SIZE; + 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, "long")) { + ls_options |= LS_SHOW_SIZE; + 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; +} |