diff options
Diffstat (limited to 'git.c')
| -rw-r--r-- | git.c | 247 |
1 files changed, 162 insertions, 85 deletions
@@ -1,41 +1,25 @@ #include "builtin.h" -#include "exec_cmd.h" #include "cache.h" +#include "exec_cmd.h" +#include "help.h" #include "quote.h" #include "run-command.h" +#include "commit.h" const char git_usage_string[] = - "git [--version] [--exec-path[=GIT_EXEC_PATH]] [--html-path]\n" - " [-p|--paginate|--no-pager] [--no-replace-objects]\n" - " [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE]\n" - " [--help] COMMAND [ARGS]"; + "git [--version] [--help] [-C <path>] [-c name=value]\n" + " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" + " [-p|--paginate|--no-pager] [--no-replace-objects] [--bare]\n" + " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" + " <command> [<args>]"; const char git_more_info_string[] = - "See 'git help COMMAND' for more information on a specific command."; + N_("'git help -a' and 'git help -g' lists available subcommands and some\n" + "concept guides. See 'git help <command>' or 'git help <concept>'\n" + "to read about a specific subcommand or concept."); +static struct startup_info git_startup_info; static int use_pager = -1; -struct pager_config { - const char *cmd; - int val; -}; - -static int pager_command_config(const char *var, const char *value, void *data) -{ - struct pager_config *c = data; - if (!prefixcmp(var, "pager.") && !strcmp(var + 6, c->cmd)) - c->val = git_config_bool(var, value); - return 0; -} - -/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */ -int check_pager_config(const char *cmd) -{ - struct pager_config c; - c.cmd = cmd; - c.val = -1; - git_config(pager_command_config, &c); - return c.val; -} static void commit_pager_choice(void) { switch (use_pager) { @@ -52,10 +36,7 @@ static void commit_pager_choice(void) { static int handle_options(const char ***argv, int *argc, int *envchanged) { - int handled = 0; - - if (!getenv("GIT_ASKPASS") && getenv("SSH_ASKPASS")) - setenv("GIT_ASKPASS", getenv("SSH_ASKPASS"), 1); + const char **orig_argv = *argv; while (*argc > 0) { const char *cmd = (*argv)[0]; @@ -84,6 +65,12 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) } else if (!strcmp(cmd, "--html-path")) { puts(system_path(GIT_HTML_PATH)); exit(0); + } else if (!strcmp(cmd, "--man-path")) { + puts(system_path(GIT_MAN_PATH)); + exit(0); + } else if (!strcmp(cmd, "--info-path")) { + puts(system_path(GIT_INFO_PATH)); + exit(0); } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { use_pager = 1; } else if (!strcmp(cmd, "--no-pager")) { @@ -105,11 +92,24 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) *envchanged = 1; (*argv)++; (*argc)--; - handled++; } else if (!prefixcmp(cmd, "--git-dir=")) { setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1); if (envchanged) *envchanged = 1; + } else if (!strcmp(cmd, "--namespace")) { + if (*argc < 2) { + fprintf(stderr, "No namespace given for --namespace.\n" ); + usage(git_usage_string); + } + setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); + if (envchanged) + *envchanged = 1; + (*argv)++; + (*argc)--; + } else if (!prefixcmp(cmd, "--namespace=")) { + setenv(GIT_NAMESPACE_ENVIRONMENT, cmd + 12, 1); + if (envchanged) + *envchanged = 1; } else if (!strcmp(cmd, "--work-tree")) { if (*argc < 2) { fprintf(stderr, "No directory given for --work-tree.\n" ); @@ -128,8 +128,54 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) static char git_dir[PATH_MAX+1]; is_bare_repository_cfg = 1; setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 0); + setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1); + if (envchanged) + *envchanged = 1; + } else if (!strcmp(cmd, "-c")) { + if (*argc < 2) { + fprintf(stderr, "-c expects a configuration string\n" ); + usage(git_usage_string); + } + git_config_push_parameter((*argv)[1]); + (*argv)++; + (*argc)--; + } else if (!strcmp(cmd, "--literal-pathspecs")) { + setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); if (envchanged) *envchanged = 1; + } else if (!strcmp(cmd, "--no-literal-pathspecs")) { + setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); + if (envchanged) + *envchanged = 1; + } else if (!strcmp(cmd, "--glob-pathspecs")) { + setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); + if (envchanged) + *envchanged = 1; + } else if (!strcmp(cmd, "--noglob-pathspecs")) { + setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); + if (envchanged) + *envchanged = 1; + } else if (!strcmp(cmd, "--icase-pathspecs")) { + setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); + if (envchanged) + *envchanged = 1; + } else if (!strcmp(cmd, "--shallow-file")) { + (*argv)++; + (*argc)--; + set_alternate_shallow_file((*argv)[0]); + if (envchanged) + *envchanged = 1; + } else if (!strcmp(cmd, "-C")) { + if (*argc < 2) { + fprintf(stderr, "No directory given for -C.\n" ); + usage(git_usage_string); + } + if (chdir((*argv)[1])) + die_errno("Cannot change to '%s'", (*argv)[1]); + if (envchanged) + *envchanged = 1; + (*argv)++; + (*argc)--; } else { fprintf(stderr, "Unknown option: %s\n", cmd); usage(git_usage_string); @@ -137,9 +183,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) (*argv)++; (*argc)--; - handled++; } - return handled; + return (*argv) - orig_argv; } static int handle_alias(int *argcp, const char ***argv) @@ -158,27 +203,29 @@ static int handle_alias(int *argcp, const char ***argv) alias_string = alias_lookup(alias_command); if (alias_string) { if (alias_string[0] == '!') { - if (*argcp > 1) { - struct strbuf buf; - - strbuf_init(&buf, PATH_MAX); - strbuf_addstr(&buf, alias_string); - sq_quote_argv(&buf, (*argv) + 1, PATH_MAX); - free(alias_string); - alias_string = buf.buf; - } - trace_printf("trace: alias to shell cmd: %s => %s\n", - alias_command, alias_string + 1); - ret = system(alias_string + 1); - if (ret >= 0 && WIFEXITED(ret) && - WEXITSTATUS(ret) != 127) - exit(WEXITSTATUS(ret)); - die("Failed to run '%s' when expanding alias '%s'", - alias_string + 1, alias_command); + const char **alias_argv; + int argc = *argcp, i; + + commit_pager_choice(); + + /* build alias_argv */ + alias_argv = xmalloc(sizeof(*alias_argv) * (argc + 1)); + alias_argv[0] = alias_string + 1; + for (i = 1; i < argc; ++i) + alias_argv[i] = (*argv)[i]; + alias_argv[argc] = NULL; + + ret = run_command_v_opt(alias_argv, RUN_USING_SHELL); + if (ret >= 0) /* normal exit */ + exit(ret); + + die_errno("While expanding alias '%s': '%s'", + alias_command, alias_string + 1); } count = split_cmdline(alias_string, &new_argv); if (count < 0) - die("Bad alias.%s string", alias_command); + die("Bad alias.%s string: %s", alias_command, + split_cmdline_strerror(count)); option_count = handle_options(&new_argv, &count, &envchanged); if (envchanged) die("alias '%s' changes environment variables\n" @@ -217,15 +264,14 @@ static int handle_alias(int *argcp, const char ***argv) return ret; } -const char git_version_string[] = GIT_VERSION; - -#define RUN_SETUP (1<<0) -#define USE_PAGER (1<<1) +#define RUN_SETUP (1<<0) +#define RUN_SETUP_GENTLY (1<<1) +#define USE_PAGER (1<<2) /* * require working tree to be present -- anything uses this needs * RUN_SETUP for reading from the configuration file. */ -#define NEED_WORK_TREE (1<<2) +#define NEED_WORK_TREE (1<<3) struct cmd_struct { const char *cmd; @@ -244,11 +290,19 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) if (!help) { if (p->option & RUN_SETUP) prefix = setup_git_directory(); + if (p->option & RUN_SETUP_GENTLY) { + int nongit_ok; + prefix = setup_git_directory_gently(&nongit_ok); + } - if (use_pager == -1 && p->option & RUN_SETUP) + if (use_pager == -1 && p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) use_pager = check_pager_config(p->cmd); if (use_pager == -1 && p->option & USE_PAGER) use_pager = 1; + + if ((p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) && + startup_info->have_repository) /* get_git_dir() may set up repo, avoid that */ + trace_repo_setup(prefix); } commit_pager_choice(); @@ -283,28 +337,31 @@ static void handle_internal_command(int argc, const char **argv) const char *cmd = argv[0]; static struct cmd_struct commands[] = { { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, - { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, { "annotate", cmd_annotate, RUN_SETUP }, - { "apply", cmd_apply }, + { "apply", cmd_apply, RUN_SETUP_GENTLY }, { "archive", cmd_archive }, - { "bisect--helper", cmd_bisect__helper, RUN_SETUP | NEED_WORK_TREE }, + { "bisect--helper", cmd_bisect__helper, RUN_SETUP }, { "blame", cmd_blame, RUN_SETUP }, { "branch", cmd_branch, RUN_SETUP }, - { "bundle", cmd_bundle }, + { "bundle", cmd_bundle, RUN_SETUP_GENTLY }, { "cat-file", cmd_cat_file, RUN_SETUP }, + { "check-attr", cmd_check_attr, RUN_SETUP }, + { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, + { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, + { "check-ref-format", cmd_check_ref_format }, { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, { "checkout-index", cmd_checkout_index, RUN_SETUP | NEED_WORK_TREE}, - { "check-ref-format", cmd_check_ref_format }, - { "check-attr", cmd_check_attr, RUN_SETUP }, { "cherry", cmd_cherry, RUN_SETUP }, { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, - { "clone", cmd_clone }, { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, + { "clone", cmd_clone }, + { "column", cmd_column, RUN_SETUP_GENTLY }, { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, { "commit-tree", cmd_commit_tree, RUN_SETUP }, - { "config", cmd_config }, + { "config", cmd_config, RUN_SETUP_GENTLY }, { "count-objects", cmd_count_objects, RUN_SETUP }, + { "credential", cmd_credential, RUN_SETUP_GENTLY }, { "describe", cmd_describe, RUN_SETUP }, { "diff", cmd_diff }, { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE }, @@ -320,21 +377,21 @@ static void handle_internal_command(int argc, const char **argv) { "fsck-objects", cmd_fsck, RUN_SETUP }, { "gc", cmd_gc, RUN_SETUP }, { "get-tar-commit-id", cmd_get_tar_commit_id }, - { "grep", cmd_grep, USE_PAGER }, + { "grep", cmd_grep, RUN_SETUP_GENTLY }, { "hash-object", cmd_hash_object }, { "help", cmd_help }, - { "index-pack", cmd_index_pack }, + { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY }, { "init", cmd_init_db }, { "init-db", cmd_init_db }, - { "log", cmd_log, RUN_SETUP | USE_PAGER }, + { "log", cmd_log, RUN_SETUP }, { "ls-files", cmd_ls_files, RUN_SETUP }, + { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, { "ls-tree", cmd_ls_tree, RUN_SETUP }, - { "ls-remote", cmd_ls_remote }, { "mailinfo", cmd_mailinfo }, { "mailsplit", cmd_mailsplit }, { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, { "merge-base", cmd_merge_base, RUN_SETUP }, - { "merge-file", cmd_merge_file }, + { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, { "merge-index", cmd_merge_index, RUN_SETUP }, { "merge-ours", cmd_merge_ours, RUN_SETUP }, { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE }, @@ -349,8 +406,9 @@ static void handle_internal_command(int argc, const char **argv) { "notes", cmd_notes, RUN_SETUP }, { "pack-objects", cmd_pack_objects, RUN_SETUP }, { "pack-redundant", cmd_pack_redundant, RUN_SETUP }, + { "pack-refs", cmd_pack_refs, RUN_SETUP }, { "patch-id", cmd_patch_id }, - { "peek-remote", cmd_ls_remote }, + { "peek-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, { "pickaxe", cmd_blame, RUN_SETUP }, { "prune", cmd_prune, RUN_SETUP }, { "prune-packed", cmd_prune_packed, RUN_SETUP }, @@ -359,8 +417,10 @@ static void handle_internal_command(int argc, const char **argv) { "receive-pack", cmd_receive_pack }, { "reflog", cmd_reflog, RUN_SETUP }, { "remote", cmd_remote, RUN_SETUP }, + { "remote-ext", cmd_remote_ext }, + { "remote-fd", cmd_remote_fd }, { "replace", cmd_replace, RUN_SETUP }, - { "repo-config", cmd_config }, + { "repo-config", cmd_repo_config, RUN_SETUP_GENTLY }, { "rerere", cmd_rerere, RUN_SETUP }, { "reset", cmd_reset, RUN_SETUP }, { "rev-list", cmd_rev_list, RUN_SETUP }, @@ -368,9 +428,11 @@ static void handle_internal_command(int argc, const char **argv) { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, { "rm", cmd_rm, RUN_SETUP }, { "send-pack", cmd_send_pack, RUN_SETUP }, - { "shortlog", cmd_shortlog, USE_PAGER }, + { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, + { "show", cmd_show, RUN_SETUP }, { "show-branch", cmd_show_branch, RUN_SETUP }, - { "show", cmd_show, RUN_SETUP | USE_PAGER }, + { "show-ref", cmd_show_ref, RUN_SETUP }, + { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, { "stripspace", cmd_stripspace }, { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, @@ -382,14 +444,13 @@ static void handle_internal_command(int argc, const char **argv) { "update-ref", cmd_update_ref, RUN_SETUP }, { "update-server-info", cmd_update_server_info, RUN_SETUP }, { "upload-archive", cmd_upload_archive }, - { "var", cmd_var }, + { "upload-archive--writer", cmd_upload_archive_writer }, + { "var", cmd_var, RUN_SETUP_GENTLY }, + { "verify-pack", cmd_verify_pack }, { "verify-tag", cmd_verify_tag, RUN_SETUP }, { "version", cmd_version }, - { "whatchanged", cmd_whatchanged, RUN_SETUP | USE_PAGER }, + { "whatchanged", cmd_whatchanged, RUN_SETUP }, { "write-tree", cmd_write_tree, RUN_SETUP }, - { "verify-pack", cmd_verify_pack }, - { "show-ref", cmd_show_ref, RUN_SETUP }, - { "pack-refs", cmd_pack_refs, RUN_SETUP }, }; int i; static const char ext[] = STRIP_EXTENSION; @@ -423,6 +484,10 @@ static void execv_dashed_external(const char **argv) const char *tmp; int status; + if (use_pager == -1) + use_pager = check_pager_config(argv[0]); + commit_pager_choice(); + strbuf_addf(&cmd, "git-%s", argv[0]); /* @@ -440,7 +505,7 @@ static void execv_dashed_external(const char **argv) * if we fail because the command is not found, it is * OK to return. Otherwise, we just pass along the status code. */ - status = run_command_v_opt(argv, RUN_SILENT_EXEC_FAILURE); + status = run_command_v_opt(argv, RUN_SILENT_EXEC_FAILURE | RUN_CLEAN_ON_EXIT); if (status >= 0 || errno != ENOENT) exit(status); @@ -473,15 +538,27 @@ static int run_argv(int *argcp, const char ***argv) } -int main(int argc, const char **argv) +int main(int argc, char **av) { + const char **argv = (const char **) av; const char *cmd; + startup_info = &git_startup_info; + cmd = git_extract_argv0_path(argv[0]); if (!cmd) cmd = "git-help"; /* + * Always open file descriptors 0/1/2 to avoid clobbering files + * in die(). It also avoids messing up when the pipes are dup'ed + * onto stdin/stdout/stderr in the child processes we spawn. + */ + sanitize_stdfds(); + + git_setup_gettext(); + + /* * "git-xxxx" is the same as "git xxxx", but we obviously: * * - cannot take flags in between the "git" and the "xxxx". @@ -502,15 +579,15 @@ int main(int argc, const char **argv) argv++; argc--; handle_options(&argv, &argc, NULL); - commit_pager_choice(); if (argc > 0) { if (!prefixcmp(argv[0], "--")) argv[0] += 2; } else { /* The user didn't specify a command; give them help */ + commit_pager_choice(); printf("usage: %s\n\n", git_usage_string); list_common_cmds_help(); - printf("\n%s\n", git_more_info_string); + printf("\n%s\n", _(git_more_info_string)); exit(1); } cmd = argv[0]; |