diff options
Diffstat (limited to 'builtin/ls-tree.c')
| -rw-r--r-- | builtin/ls-tree.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c new file mode 100644 index 0000000..dc86b0d --- /dev/null +++ b/builtin/ls-tree.c @@ -0,0 +1,174 @@ +/* + * 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" +#include "parse-options.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 * const ls_tree_usage[] = { + "git ls-tree [<options>] <tree-ish> [path...]", + NULL +}; + +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, void *context) +{ + int retval = 0; + const char *type = blob_type; + + if (S_ISGITLINK(mode)) { + /* + * Maybe we want to have some recursive version here? + * + * Something similar to this incomplete example: + * + if (show_subprojects(base, baselen, pathname)) + retval = READ_TREE_RECURSIVE; + * + */ + 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) { + char size_text[24]; + if (!strcmp(type, blob_type)) { + unsigned long size; + if (sha1_object_info(sha1, &size) == OBJ_BAD) + strcpy(size_text, "BAD"); + else + snprintf(size_text, sizeof(size_text), + "%lu", size); + } else + strcpy(size_text, "-"); + printf("%06o %s %s %7s\t", mode, type, + find_unique_abbrev(sha1, abbrev), + size_text); + } else + printf("%06o %s %s\t", mode, type, + find_unique_abbrev(sha1, abbrev)); + } + write_name_quotedpfx(base + chomp_prefix, baselen - chomp_prefix, + pathname, stdout, line_termination); + return retval; +} + +int cmd_ls_tree(int argc, const char **argv, const char *prefix) +{ + unsigned char sha1[20]; + struct tree *tree; + int full_tree = 0; + const struct option ls_tree_options[] = { + OPT_BIT('d', NULL, &ls_options, "only show trees", + LS_TREE_ONLY), + OPT_BIT('r', NULL, &ls_options, "recurse into subtrees", + LS_RECURSIVE), + OPT_BIT('t', NULL, &ls_options, "show trees when recursing", + LS_SHOW_TREES), + OPT_SET_INT('z', NULL, &line_termination, + "terminate entries with NUL byte", 0), + OPT_BIT('l', "long", &ls_options, "include object size", + LS_SHOW_SIZE), + OPT_BIT(0, "name-only", &ls_options, "list only filenames", + LS_NAME_ONLY), + OPT_BIT(0, "name-status", &ls_options, "list only filenames", + LS_NAME_ONLY), + OPT_SET_INT(0, "full-name", &chomp_prefix, + "use full path names", 0), + OPT_BOOLEAN(0, "full-tree", &full_tree, + "list entire tree; not just current directory " + "(implies --full-name)"), + OPT__ABBREV(&abbrev), + OPT_END() + }; + + git_config(git_default_config, NULL); + ls_tree_prefix = prefix; + if (prefix && *prefix) + chomp_prefix = strlen(prefix); + + argc = parse_options(argc, argv, prefix, ls_tree_options, + ls_tree_usage, 0); + if (full_tree) { + ls_tree_prefix = prefix = NULL; + chomp_prefix = 0; + } + /* -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 < 1) + usage_with_options(ls_tree_usage, ls_tree_options); + if (get_sha1(argv[0], sha1)) + die("Not a valid object name %s", argv[0]); + + pathspec = get_pathspec(prefix, argv + 1); + tree = parse_tree_indirect(sha1); + if (!tree) + die("not a tree object"); + read_tree_recursive(tree, "", 0, 0, pathspec, show_tree, NULL); + + return 0; +} |