X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-read-tree.c;h=9c2d634d6d04c3ce08e1352adcba31b527fc08b1;hb=6ffd781226f04629eff63a684b47ad7555143312;hp=82e25eaa0758d8b9584592f4072f81eeccb0bf1d;hpb=39836a2e3cc38735d532a08465774194e5099daf;p=git.git diff --git a/builtin-read-tree.c b/builtin-read-tree.c index 82e25eaa0..9c2d634d6 100644 --- a/builtin-read-tree.c +++ b/builtin-read-tree.c @@ -12,6 +12,7 @@ #include "unpack-trees.h" #include "dir.h" #include "builtin.h" +#include "parse-options.h" static int nr_trees; static struct tree *trees[MAX_UNPACK_TREES]; @@ -29,7 +30,39 @@ static int list_tree(unsigned char *sha1) return 0; } -static const char read_tree_usage[] = "git read-tree ( | [[-m [--trivial] [--aggressive] | --reset | --prefix=] [-u | -i]] [--exclude-per-directory=] [--index-output=] [ []])"; +static const char * const read_tree_usage[] = { + "git read-tree [[-m [--trivial] [--aggressive] | --reset | --prefix=] [-u [--exclude-per-directory=] | -i]] [--index-output=] [ []]", + NULL +}; + +static int index_output_cb(const struct option *opt, const char *arg, + int unset) +{ + set_alternate_index_output(arg); + return 0; +} + +static int exclude_per_directory_cb(const struct option *opt, const char *arg, + int unset) +{ + struct dir_struct *dir; + struct unpack_trees_options *opts; + + opts = (struct unpack_trees_options *)opt->value; + + if (opts->dir) + die("more than one --exclude-per-directory given."); + + dir = xcalloc(1, sizeof(*opts->dir)); + dir->flags |= DIR_SHOW_IGNORED; + dir->exclude_per_dir = arg; + opts->dir = dir; + /* We do not need to nor want to do read-directory + * here; we are merely interested in reusing the + * per directory ignore stack mechanism. + */ + return 0; +} static struct lock_file lock_file; @@ -39,6 +72,34 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) unsigned char sha1[20]; struct tree_desc t[MAX_UNPACK_TREES]; struct unpack_trees_options opts; + int prefix_set = 0; + const struct option read_tree_options[] = { + { OPTION_CALLBACK, 0, "index-output", NULL, "FILE", + "write resulting index to ", + PARSE_OPT_NONEG, index_output_cb }, + OPT__VERBOSE(&opts.verbose_update), + OPT_GROUP("Merging"), + OPT_SET_INT('m', NULL, &opts.merge, + "perform a merge in addition to a read", 1), + OPT_SET_INT(0, "trivial", &opts.trivial_merges_only, + "3-way merge if no file level merging required", 1), + OPT_SET_INT(0, "aggressive", &opts.aggressive, + "3-way merge in presence of adds and removes", 1), + OPT_SET_INT(0, "reset", &opts.reset, + "same as -m, but discard unmerged entries", 1), + { OPTION_STRING, 0, "prefix", &opts.prefix, "/", + "read the tree into the index under /", + PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP }, + OPT_SET_INT('u', NULL, &opts.update, + "update working tree with merge result", 1), + { OPTION_CALLBACK, 0, "exclude-per-directory", &opts, + "gitignore", + "allow explicitly ignored files to be overwritten", + PARSE_OPT_NONEG, exclude_per_directory_cb }, + OPT_SET_INT('i', NULL, &opts.index_only, + "don't check the working tree after merging", 1), + OPT_END() + }; memset(&opts, 0, sizeof(opts)); opts.head_idx = -1; @@ -49,105 +110,19 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) newfd = hold_locked_index(&lock_file, 1); - for (i = 1; i < argc; i++) { - const char *arg = argv[i]; - - /* "-u" means "update", meaning that a merge will update - * the working tree. - */ - if (!strcmp(arg, "-u")) { - opts.update = 1; - continue; - } - - if (!strcmp(arg, "-v")) { - opts.verbose_update = 1; - continue; - } - - /* "-i" means "index only", meaning that a merge will - * not even look at the working tree. - */ - if (!strcmp(arg, "-i")) { - opts.index_only = 1; - continue; - } - - if (!prefixcmp(arg, "--index-output=")) { - set_alternate_index_output(arg + 15); - continue; - } - - /* "--prefix=/" means keep the current index - * entries and put the entries from the tree under the - * given subdirectory. - */ - if (!prefixcmp(arg, "--prefix=")) { - if (stage || opts.merge || opts.prefix) - usage(read_tree_usage); - opts.prefix = arg + 9; - opts.merge = 1; - stage = 1; - if (read_cache_unmerged()) - die("you need to resolve your current index first"); - continue; - } - - /* This differs from "-m" in that we'll silently ignore - * unmerged entries and overwrite working tree files that - * correspond to them. - */ - if (!strcmp(arg, "--reset")) { - if (stage || opts.merge || opts.prefix) - usage(read_tree_usage); - opts.reset = 1; - opts.merge = 1; - stage = 1; - read_cache_unmerged(); - continue; - } - - if (!strcmp(arg, "--trivial")) { - opts.trivial_merges_only = 1; - continue; - } - - if (!strcmp(arg, "--aggressive")) { - opts.aggressive = 1; - continue; - } + argc = parse_options(argc, argv, unused_prefix, read_tree_options, + read_tree_usage, 0); - /* "-m" stands for "merge", meaning we start in stage 1 */ - if (!strcmp(arg, "-m")) { - if (stage || opts.merge || opts.prefix) - usage(read_tree_usage); - if (read_cache_unmerged()) - die("you need to resolve your current index first"); - stage = 1; - opts.merge = 1; - continue; - } + if (read_cache_unmerged() && (opts.prefix || opts.merge)) + die("You need to resolve your current index first"); - if (!prefixcmp(arg, "--exclude-per-directory=")) { - struct dir_struct *dir; - - if (opts.dir) - die("more than one --exclude-per-directory are given."); - - dir = xcalloc(1, sizeof(*opts.dir)); - dir->flags |= DIR_SHOW_IGNORED; - dir->exclude_per_dir = arg + 24; - opts.dir = dir; - /* We do not need to nor want to do read-directory - * here; we are merely interested in reusing the - * per directory ignore stack mechanism. - */ - continue; - } + prefix_set = opts.prefix ? 1 : 0; + if (1 < opts.merge + opts.reset + prefix_set) + die("Which one? -m, --reset, or --prefix?"); + stage = opts.merge = (opts.reset || opts.merge || prefix_set); - /* using -u and -i at the same time makes no sense */ - if (1 < opts.index_only + opts.update) - usage(read_tree_usage); + for (i = 0; i < argc; i++) { + const char *arg = argv[i]; if (get_sha1(arg, sha1)) die("Not a valid object name %s", arg); @@ -155,8 +130,11 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) die("failed to unpack tree object %s", arg); stage++; } + if (1 < opts.index_only + opts.update) + die("-u and -i at the same time makes no sense"); if ((opts.update||opts.index_only) && !opts.merge) - usage(read_tree_usage); + die("%s is meaningless without -m, --reset, or --prefix", + opts.update ? "-u" : "-i"); if ((opts.dir && !opts.update)) die("--exclude-per-directory is meaningless unless -u"); if (opts.merge && !opts.index_only)