diff options
Diffstat (limited to 'contrib/scalar/scalar.c')
| -rw-r--r-- | contrib/scalar/scalar.c | 845 |
1 files changed, 0 insertions, 845 deletions
diff --git a/contrib/scalar/scalar.c b/contrib/scalar/scalar.c deleted file mode 100644 index 58ca0e56f1..0000000000 --- a/contrib/scalar/scalar.c +++ /dev/null @@ -1,845 +0,0 @@ -/* - * The Scalar command-line interface. - */ - -#include "cache.h" -#include "gettext.h" -#include "parse-options.h" -#include "config.h" -#include "run-command.h" -#include "refs.h" -#include "dir.h" -#include "packfile.h" -#include "help.h" - -/* - * Remove the deepest subdirectory in the provided path string. Path must not - * include a trailing path separator. Returns 1 if parent directory found, - * otherwise 0. - */ -static int strbuf_parent_directory(struct strbuf *buf) -{ - size_t len = buf->len; - size_t offset = offset_1st_component(buf->buf); - char *path_sep = find_last_dir_sep(buf->buf + offset); - strbuf_setlen(buf, path_sep ? path_sep - buf->buf : offset); - - return buf->len < len; -} - -static void setup_enlistment_directory(int argc, const char **argv, - const char * const *usagestr, - const struct option *options, - struct strbuf *enlistment_root) -{ - struct strbuf path = STRBUF_INIT; - char *root; - int enlistment_found = 0; - - if (startup_info->have_repository) - BUG("gitdir already set up?!?"); - - if (argc > 1) - usage_with_options(usagestr, options); - - /* find the worktree, determine its corresponding root */ - if (argc == 1) - strbuf_add_absolute_path(&path, argv[0]); - else if (strbuf_getcwd(&path) < 0) - die(_("need a working directory")); - - strbuf_trim_trailing_dir_sep(&path); - do { - const size_t len = path.len; - - /* check if currently in enlistment root with src/ workdir */ - strbuf_addstr(&path, "/src"); - if (is_nonbare_repository_dir(&path)) { - if (enlistment_root) - strbuf_add(enlistment_root, path.buf, len); - - enlistment_found = 1; - break; - } - - /* reset to original path */ - strbuf_setlen(&path, len); - - /* check if currently in workdir */ - if (is_nonbare_repository_dir(&path)) { - if (enlistment_root) { - /* - * If the worktree's directory's name is `src`, the enlistment is the - * parent directory, otherwise it is identical to the worktree. - */ - root = strip_path_suffix(path.buf, "src"); - strbuf_addstr(enlistment_root, root ? root : path.buf); - free(root); - } - - enlistment_found = 1; - break; - } - } while (strbuf_parent_directory(&path)); - - if (!enlistment_found) - die(_("could not find enlistment root")); - - if (chdir(path.buf) < 0) - die_errno(_("could not switch to '%s'"), path.buf); - - strbuf_release(&path); - setup_git_directory(); -} - -static int run_git(const char *arg, ...) -{ - struct strvec argv = STRVEC_INIT; - va_list args; - const char *p; - int res; - - va_start(args, arg); - strvec_push(&argv, arg); - while ((p = va_arg(args, const char *))) - strvec_push(&argv, p); - va_end(args); - - res = run_command_v_opt(argv.v, RUN_GIT_CMD); - - strvec_clear(&argv); - return res; -} - -static int set_recommended_config(int reconfigure) -{ - struct { - const char *key; - const char *value; - int overwrite_on_reconfigure; - } config[] = { - /* Required */ - { "am.keepCR", "true", 1 }, - { "core.FSCache", "true", 1 }, - { "core.multiPackIndex", "true", 1 }, - { "core.preloadIndex", "true", 1 }, -#ifndef WIN32 - { "core.untrackedCache", "true", 1 }, -#else - /* - * Unfortunately, Scalar's Functional Tests demonstrated - * that the untracked cache feature is unreliable on Windows - * (which is a bummer because that platform would benefit the - * most from it). For some reason, freshly created files seem - * not to update the directory's `lastModified` time - * immediately, but the untracked cache would need to rely on - * that. - * - * Therefore, with a sad heart, we disable this very useful - * feature on Windows. - */ - { "core.untrackedCache", "false", 1 }, -#endif - { "core.logAllRefUpdates", "true", 1 }, - { "credential.https://dev.azure.com.useHttpPath", "true", 1 }, - { "credential.validate", "false", 1 }, /* GCM4W-only */ - { "gc.auto", "0", 1 }, - { "gui.GCWarning", "false", 1 }, - { "index.threads", "true", 1 }, - { "index.version", "4", 1 }, - { "merge.stat", "false", 1 }, - { "merge.renames", "true", 1 }, - { "pack.useBitmaps", "false", 1 }, - { "pack.useSparse", "true", 1 }, - { "receive.autoGC", "false", 1 }, - { "feature.manyFiles", "false", 1 }, - { "feature.experimental", "false", 1 }, - { "fetch.unpackLimit", "1", 1 }, - { "fetch.writeCommitGraph", "false", 1 }, -#ifdef WIN32 - { "http.sslBackend", "schannel", 1 }, -#endif - /* Optional */ - { "status.aheadBehind", "false" }, - { "commitGraph.generationVersion", "1" }, - { "core.autoCRLF", "false" }, - { "core.safeCRLF", "false" }, - { "fetch.showForcedUpdates", "false" }, - { NULL, NULL }, - }; - int i; - char *value; - - for (i = 0; config[i].key; i++) { - if ((reconfigure && config[i].overwrite_on_reconfigure) || - git_config_get_string(config[i].key, &value)) { - trace2_data_string("scalar", the_repository, config[i].key, "created"); - if (git_config_set_gently(config[i].key, - config[i].value) < 0) - return error(_("could not configure %s=%s"), - config[i].key, config[i].value); - } else { - trace2_data_string("scalar", the_repository, config[i].key, "exists"); - free(value); - } - } - - /* - * The `log.excludeDecoration` setting is special because it allows - * for multiple values. - */ - if (git_config_get_string("log.excludeDecoration", &value)) { - trace2_data_string("scalar", the_repository, - "log.excludeDecoration", "created"); - if (git_config_set_multivar_gently("log.excludeDecoration", - "refs/prefetch/*", - CONFIG_REGEX_NONE, 0)) - return error(_("could not configure " - "log.excludeDecoration")); - } else { - trace2_data_string("scalar", the_repository, - "log.excludeDecoration", "exists"); - free(value); - } - - return 0; -} - -static int toggle_maintenance(int enable) -{ - return run_git("maintenance", enable ? "start" : "unregister", NULL); -} - -static int add_or_remove_enlistment(int add) -{ - int res; - - if (!the_repository->worktree) - die(_("Scalar enlistments require a worktree")); - - res = run_git("config", "--global", "--get", "--fixed-value", - "scalar.repo", the_repository->worktree, NULL); - - /* - * If we want to add and the setting is already there, then do nothing. - * If we want to remove and the setting is not there, then do nothing. - */ - if ((add && !res) || (!add && res)) - return 0; - - return run_git("config", "--global", add ? "--add" : "--unset", - add ? "--no-fixed-value" : "--fixed-value", - "scalar.repo", the_repository->worktree, NULL); -} - -static int register_dir(void) -{ - int res = add_or_remove_enlistment(1); - - if (!res) - res = set_recommended_config(0); - - if (!res) - res = toggle_maintenance(1); - - return res; -} - -static int unregister_dir(void) -{ - int res = 0; - - if (toggle_maintenance(0) < 0) - res = -1; - - if (add_or_remove_enlistment(0) < 0) - res = -1; - - return res; -} - -/* printf-style interface, expects `<key>=<value>` argument */ -static int set_config(const char *fmt, ...) -{ - struct strbuf buf = STRBUF_INIT; - char *value; - int res; - va_list args; - - va_start(args, fmt); - strbuf_vaddf(&buf, fmt, args); - va_end(args); - - value = strchr(buf.buf, '='); - if (value) - *(value++) = '\0'; - res = git_config_set_gently(buf.buf, value); - strbuf_release(&buf); - - return res; -} - -static char *remote_default_branch(const char *url) -{ - struct child_process cp = CHILD_PROCESS_INIT; - struct strbuf out = STRBUF_INIT; - - cp.git_cmd = 1; - strvec_pushl(&cp.args, "ls-remote", "--symref", url, "HEAD", NULL); - if (!pipe_command(&cp, NULL, 0, &out, 0, NULL, 0)) { - const char *line = out.buf; - - while (*line) { - const char *eol = strchrnul(line, '\n'), *p; - size_t len = eol - line; - char *branch; - - if (!skip_prefix(line, "ref: ", &p) || - !strip_suffix_mem(line, &len, "\tHEAD")) { - line = eol + (*eol == '\n'); - continue; - } - - eol = line + len; - if (skip_prefix(p, "refs/heads/", &p)) { - branch = xstrndup(p, eol - p); - strbuf_release(&out); - return branch; - } - - error(_("remote HEAD is not a branch: '%.*s'"), - (int)(eol - p), p); - strbuf_release(&out); - return NULL; - } - } - warning(_("failed to get default branch name from remote; " - "using local default")); - strbuf_reset(&out); - - child_process_init(&cp); - cp.git_cmd = 1; - strvec_pushl(&cp.args, "symbolic-ref", "--short", "HEAD", NULL); - if (!pipe_command(&cp, NULL, 0, &out, 0, NULL, 0)) { - strbuf_trim(&out); - return strbuf_detach(&out, NULL); - } - - strbuf_release(&out); - error(_("failed to get default branch name")); - return NULL; -} - -static int delete_enlistment(struct strbuf *enlistment) -{ -#ifdef WIN32 - struct strbuf parent = STRBUF_INIT; -#endif - - if (unregister_dir()) - die(_("failed to unregister repository")); - -#ifdef WIN32 - /* - * Change the current directory to one outside of the enlistment so - * that we may delete everything underneath it. - */ - strbuf_addbuf(&parent, enlistment); - strbuf_parent_directory(&parent); - if (chdir(parent.buf) < 0) - die_errno(_("could not switch to '%s'"), parent.buf); - strbuf_release(&parent); -#endif - - if (remove_dir_recursively(enlistment, 0)) - die(_("failed to delete enlistment directory")); - - return 0; -} - -/* - * Dummy implementation; Using `get_version_info()` would cause a link error - * without this. - */ -void load_builtin_commands(const char *prefix, struct cmdnames *cmds) -{ - die("not implemented"); -} - -static int cmd_clone(int argc, const char **argv) -{ - const char *branch = NULL; - int full_clone = 0, single_branch = 0; - struct option clone_options[] = { - OPT_STRING('b', "branch", &branch, N_("<branch>"), - N_("branch to checkout after clone")), - OPT_BOOL(0, "full-clone", &full_clone, - N_("when cloning, create full working directory")), - OPT_BOOL(0, "single-branch", &single_branch, - N_("only download metadata for the branch that will " - "be checked out")), - OPT_END(), - }; - const char * const clone_usage[] = { - N_("scalar clone [<options>] [--] <repo> [<dir>]"), - NULL - }; - const char *url; - char *enlistment = NULL, *dir = NULL; - struct strbuf buf = STRBUF_INIT; - int res; - - argc = parse_options(argc, argv, NULL, clone_options, clone_usage, 0); - - if (argc == 2) { - url = argv[0]; - enlistment = xstrdup(argv[1]); - } else if (argc == 1) { - url = argv[0]; - - strbuf_addstr(&buf, url); - /* Strip trailing slashes, if any */ - while (buf.len > 0 && is_dir_sep(buf.buf[buf.len - 1])) - strbuf_setlen(&buf, buf.len - 1); - /* Strip suffix `.git`, if any */ - strbuf_strip_suffix(&buf, ".git"); - - enlistment = find_last_dir_sep(buf.buf); - if (!enlistment) { - die(_("cannot deduce worktree name from '%s'"), url); - } - enlistment = xstrdup(enlistment + 1); - } else { - usage_msg_opt(_("You must specify a repository to clone."), - clone_usage, clone_options); - } - - if (is_directory(enlistment)) - die(_("directory '%s' exists already"), enlistment); - - dir = xstrfmt("%s/src", enlistment); - - strbuf_reset(&buf); - if (branch) - strbuf_addf(&buf, "init.defaultBranch=%s", branch); - else { - char *b = repo_default_branch_name(the_repository, 1); - strbuf_addf(&buf, "init.defaultBranch=%s", b); - free(b); - } - - if ((res = run_git("-c", buf.buf, "init", "--", dir, NULL))) - goto cleanup; - - if (chdir(dir) < 0) { - res = error_errno(_("could not switch to '%s'"), dir); - goto cleanup; - } - - setup_git_directory(); - - /* common-main already logs `argv` */ - trace2_def_repo(the_repository); - - if (!branch && !(branch = remote_default_branch(url))) { - res = error(_("failed to get default branch for '%s'"), url); - goto cleanup; - } - - if (set_config("remote.origin.url=%s", url) || - set_config("remote.origin.fetch=" - "+refs/heads/%s:refs/remotes/origin/%s", - single_branch ? branch : "*", - single_branch ? branch : "*") || - set_config("remote.origin.promisor=true") || - set_config("remote.origin.partialCloneFilter=blob:none")) { - res = error(_("could not configure remote in '%s'"), dir); - goto cleanup; - } - - if (!full_clone && - (res = run_git("sparse-checkout", "init", "--cone", NULL))) - goto cleanup; - - if (set_recommended_config(0)) - return error(_("could not configure '%s'"), dir); - - if ((res = run_git("fetch", "--quiet", "origin", NULL))) { - warning(_("partial clone failed; attempting full clone")); - - if (set_config("remote.origin.promisor") || - set_config("remote.origin.partialCloneFilter")) { - res = error(_("could not configure for full clone")); - goto cleanup; - } - - if ((res = run_git("fetch", "--quiet", "origin", NULL))) - goto cleanup; - } - - if ((res = set_config("branch.%s.remote=origin", branch))) - goto cleanup; - if ((res = set_config("branch.%s.merge=refs/heads/%s", - branch, branch))) - goto cleanup; - - strbuf_reset(&buf); - strbuf_addf(&buf, "origin/%s", branch); - res = run_git("checkout", "-f", "-t", buf.buf, NULL); - if (res) - goto cleanup; - - res = register_dir(); - -cleanup: - free(enlistment); - free(dir); - strbuf_release(&buf); - return res; -} - -static int cmd_list(int argc, const char **argv) -{ - if (argc != 1) - die(_("`scalar list` does not take arguments")); - - if (run_git("config", "--global", "--get-all", "scalar.repo", NULL) < 0) - return -1; - return 0; -} - -static int cmd_register(int argc, const char **argv) -{ - struct option options[] = { - OPT_END(), - }; - const char * const usage[] = { - N_("scalar register [<enlistment>]"), - NULL - }; - - argc = parse_options(argc, argv, NULL, options, - usage, 0); - - setup_enlistment_directory(argc, argv, usage, options, NULL); - - return register_dir(); -} - -static int get_scalar_repos(const char *key, const char *value, void *data) -{ - struct string_list *list = data; - - if (!strcmp(key, "scalar.repo")) - string_list_append(list, value); - - return 0; -} - -static int cmd_reconfigure(int argc, const char **argv) -{ - int all = 0; - struct option options[] = { - OPT_BOOL('a', "all", &all, - N_("reconfigure all registered enlistments")), - OPT_END(), - }; - const char * const usage[] = { - N_("scalar reconfigure [--all | <enlistment>]"), - NULL - }; - struct string_list scalar_repos = STRING_LIST_INIT_DUP; - int i, res = 0; - struct repository r = { NULL }; - struct strbuf commondir = STRBUF_INIT, gitdir = STRBUF_INIT; - - argc = parse_options(argc, argv, NULL, options, - usage, 0); - - if (!all) { - setup_enlistment_directory(argc, argv, usage, options, NULL); - - return set_recommended_config(1); - } - - if (argc > 0) - usage_msg_opt(_("--all or <enlistment>, but not both"), - usage, options); - - git_config(get_scalar_repos, &scalar_repos); - - for (i = 0; i < scalar_repos.nr; i++) { - const char *dir = scalar_repos.items[i].string; - - strbuf_reset(&commondir); - strbuf_reset(&gitdir); - - if (chdir(dir) < 0) { - warning_errno(_("could not switch to '%s'"), dir); - res = -1; - } else if (discover_git_directory(&commondir, &gitdir) < 0) { - warning_errno(_("git repository gone in '%s'"), dir); - res = -1; - } else { - git_config_clear(); - - the_repository = &r; - r.commondir = commondir.buf; - r.gitdir = gitdir.buf; - - if (set_recommended_config(1) < 0) - res = -1; - } - } - - string_list_clear(&scalar_repos, 1); - strbuf_release(&commondir); - strbuf_release(&gitdir); - - return res; -} - -static int cmd_run(int argc, const char **argv) -{ - struct option options[] = { - OPT_END(), - }; - struct { - const char *arg, *task; - } tasks[] = { - { "config", NULL }, - { "commit-graph", "commit-graph" }, - { "fetch", "prefetch" }, - { "loose-objects", "loose-objects" }, - { "pack-files", "incremental-repack" }, - { NULL, NULL } - }; - struct strbuf buf = STRBUF_INIT; - const char *usagestr[] = { NULL, NULL }; - int i; - - strbuf_addstr(&buf, N_("scalar run <task> [<enlistment>]\nTasks:\n")); - for (i = 0; tasks[i].arg; i++) - strbuf_addf(&buf, "\t%s\n", tasks[i].arg); - usagestr[0] = buf.buf; - - argc = parse_options(argc, argv, NULL, options, - usagestr, 0); - - if (!argc) - usage_with_options(usagestr, options); - - if (!strcmp("all", argv[0])) { - i = -1; - } else { - for (i = 0; tasks[i].arg && strcmp(tasks[i].arg, argv[0]); i++) - ; /* keep looking for the task */ - - if (i > 0 && !tasks[i].arg) { - error(_("no such task: '%s'"), argv[0]); - usage_with_options(usagestr, options); - } - } - - argc--; - argv++; - setup_enlistment_directory(argc, argv, usagestr, options, NULL); - strbuf_release(&buf); - - if (i == 0) - return register_dir(); - - if (i > 0) - return run_git("maintenance", "run", - "--task", tasks[i].task, NULL); - - if (register_dir()) - return -1; - for (i = 1; tasks[i].arg; i++) - if (run_git("maintenance", "run", - "--task", tasks[i].task, NULL)) - return -1; - return 0; -} - -static int remove_deleted_enlistment(struct strbuf *path) -{ - int res = 0; - strbuf_realpath_forgiving(path, path->buf, 1); - - if (run_git("config", "--global", - "--unset", "--fixed-value", - "scalar.repo", path->buf, NULL) < 0) - res = -1; - - if (run_git("config", "--global", - "--unset", "--fixed-value", - "maintenance.repo", path->buf, NULL) < 0) - res = -1; - - return res; -} - -static int cmd_unregister(int argc, const char **argv) -{ - struct option options[] = { - OPT_END(), - }; - const char * const usage[] = { - N_("scalar unregister [<enlistment>]"), - NULL - }; - - argc = parse_options(argc, argv, NULL, options, - usage, 0); - - /* - * Be forgiving when the enlistment or worktree does not even exist any - * longer; This can be the case if a user deleted the worktree by - * mistake and _still_ wants to unregister the thing. - */ - if (argc == 1) { - struct strbuf src_path = STRBUF_INIT, workdir_path = STRBUF_INIT; - - strbuf_addf(&src_path, "%s/src/.git", argv[0]); - strbuf_addf(&workdir_path, "%s/.git", argv[0]); - if (!is_directory(src_path.buf) && !is_directory(workdir_path.buf)) { - /* remove possible matching registrations */ - int res = -1; - - strbuf_strip_suffix(&src_path, "/.git"); - res = remove_deleted_enlistment(&src_path) && res; - - strbuf_strip_suffix(&workdir_path, "/.git"); - res = remove_deleted_enlistment(&workdir_path) && res; - - strbuf_release(&src_path); - strbuf_release(&workdir_path); - return res; - } - strbuf_release(&src_path); - strbuf_release(&workdir_path); - } - - setup_enlistment_directory(argc, argv, usage, options, NULL); - - return unregister_dir(); -} - -static int cmd_delete(int argc, const char **argv) -{ - char *cwd = xgetcwd(); - struct option options[] = { - OPT_END(), - }; - const char * const usage[] = { - N_("scalar delete <enlistment>"), - NULL - }; - struct strbuf enlistment = STRBUF_INIT; - int res = 0; - - argc = parse_options(argc, argv, NULL, options, - usage, 0); - - if (argc != 1) - usage_with_options(usage, options); - - setup_enlistment_directory(argc, argv, usage, options, &enlistment); - - if (dir_inside_of(cwd, enlistment.buf) >= 0) - res = error(_("refusing to delete current working directory")); - else { - close_object_store(the_repository->objects); - res = delete_enlistment(&enlistment); - } - strbuf_release(&enlistment); - free(cwd); - - return res; -} - -static int cmd_version(int argc, const char **argv) -{ - int verbose = 0, build_options = 0; - struct option options[] = { - OPT__VERBOSE(&verbose, N_("include Git version")), - OPT_BOOL(0, "build-options", &build_options, - N_("include Git's build options")), - OPT_END(), - }; - const char * const usage[] = { - N_("scalar verbose [-v | --verbose] [--build-options]"), - NULL - }; - struct strbuf buf = STRBUF_INIT; - - argc = parse_options(argc, argv, NULL, options, - usage, 0); - - if (argc != 0) - usage_with_options(usage, options); - - get_version_info(&buf, build_options); - fprintf(stderr, "%s\n", buf.buf); - strbuf_release(&buf); - - return 0; -} - -static struct { - const char *name; - int (*fn)(int, const char **); -} builtins[] = { - { "clone", cmd_clone }, - { "list", cmd_list }, - { "register", cmd_register }, - { "unregister", cmd_unregister }, - { "run", cmd_run }, - { "reconfigure", cmd_reconfigure }, - { "delete", cmd_delete }, - { "version", cmd_version }, - { NULL, NULL}, -}; - -int cmd_main(int argc, const char **argv) -{ - struct strbuf scalar_usage = STRBUF_INIT; - int i; - - while (argc > 1 && *argv[1] == '-') { - if (!strcmp(argv[1], "-C")) { - if (argc < 3) - die(_("-C requires a <directory>")); - if (chdir(argv[2]) < 0) - die_errno(_("could not change to '%s'"), - argv[2]); - argc -= 2; - argv += 2; - } else if (!strcmp(argv[1], "-c")) { - if (argc < 3) - die(_("-c requires a <key>=<value> argument")); - git_config_push_parameter(argv[2]); - argc -= 2; - argv += 2; - } else - break; - } - - if (argc > 1) { - argv++; - argc--; - - for (i = 0; builtins[i].name; i++) - if (!strcmp(builtins[i].name, argv[0])) - return !!builtins[i].fn(argc, argv); - } - - strbuf_addstr(&scalar_usage, - N_("scalar [-C <directory>] [-c <key>=<value>] " - "<command> [<options>]\n\nCommands:\n")); - for (i = 0; builtins[i].name; i++) - strbuf_addf(&scalar_usage, "\t%s\n", builtins[i].name); - - usage(scalar_usage.buf); -} |
