diff options
Diffstat (limited to 'git.c')
| -rw-r--r-- | git.c | 120 |
1 files changed, 69 insertions, 51 deletions
@@ -2,9 +2,10 @@ #include "exec_cmd.h" #include "cache.h" #include "quote.h" +#include "run-command.h" const char git_usage_string[] = - "git [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate|--no-pager] [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE] [--help] COMMAND [ARGS]"; + "git [--version] [--exec-path[=GIT_EXEC_PATH]] [--html-path] [-p|--paginate|--no-pager] [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE] [--help] COMMAND [ARGS]"; const char git_more_info_string[] = "See 'git help COMMAND' for more information on a specific command."; @@ -46,7 +47,7 @@ static void commit_pager_choice(void) { } } -static int handle_options(const char*** argv, int* argc, int* envchanged) +static int handle_options(const char ***argv, int *argc, int *envchanged) { int handled = 0; @@ -74,6 +75,9 @@ static int handle_options(const char*** argv, int* argc, int* envchanged) puts(git_exec_path()); exit(0); } + } else if (!strcmp(cmd, "--html-path")) { + puts(system_path(GIT_HTML_PATH)); + exit(0); } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { use_pager = 1; } else if (!strcmp(cmd, "--no-pager")) { @@ -132,7 +136,7 @@ static int handle_alias(int *argcp, const char ***argv) int envchanged = 0, ret = 0, saved_errno = errno; const char *subdir; int count, option_count; - const char** new_argv; + const char **new_argv; const char *alias_command; char *alias_string; int unused_nongit; @@ -158,7 +162,7 @@ static int handle_alias(int *argcp, const char ***argv) if (ret >= 0 && WIFEXITED(ret) && WEXITSTATUS(ret) != 127) exit(WEXITSTATUS(ret)); - die("Failed to run '%s' when expanding alias '%s'\n", + die("Failed to run '%s' when expanding alias '%s'", alias_string + 1, alias_command); } count = split_cmdline(alias_string, &new_argv); @@ -183,10 +187,10 @@ static int handle_alias(int *argcp, const char ***argv) "trace: alias expansion: %s =>", alias_command); - new_argv = xrealloc(new_argv, sizeof(char*) * + new_argv = xrealloc(new_argv, sizeof(char *) * (count + *argcp + 1)); /* insert after command name */ - memcpy(new_argv + count, *argv + 1, sizeof(char*) * *argcp); + memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp); new_argv[count+*argcp] = NULL; *argv = new_argv; @@ -195,8 +199,8 @@ static int handle_alias(int *argcp, const char ***argv) ret = 1; } - if (subdir) - chdir(subdir); + if (subdir && chdir(subdir)) + die("Cannot change to %s: %s", subdir, strerror(errno)); errno = saved_errno; @@ -219,7 +223,7 @@ struct cmd_struct { int option; }; -static int run_command(struct cmd_struct *p, int argc, const char **argv) +static int run_builtin(struct cmd_struct *p, int argc, const char **argv) { int status; struct stat st; @@ -266,9 +270,11 @@ 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 }, { "archive", cmd_archive }, + { "bisect--helper", cmd_bisect__helper, RUN_SETUP | NEED_WORK_TREE }, { "blame", cmd_blame, RUN_SETUP }, { "branch", cmd_branch, RUN_SETUP }, { "bundle", cmd_bundle }, @@ -330,6 +336,7 @@ static void handle_internal_command(int argc, const char **argv) { "prune-packed", cmd_prune_packed, RUN_SETUP }, { "push", cmd_push, RUN_SETUP }, { "read-tree", cmd_read_tree, RUN_SETUP }, + { "receive-pack", cmd_receive_pack }, { "reflog", cmd_reflog, RUN_SETUP }, { "remote", cmd_remote, RUN_SETUP }, { "repo-config", cmd_config }, @@ -366,7 +373,7 @@ static void handle_internal_command(int argc, const char **argv) if (sizeof(ext) > 1) { i = strlen(argv[0]) - strlen(ext); if (i > 0 && !strcmp(argv[0] + i, ext)) { - char *argv0 = strdup(argv[0]); + char *argv0 = xstrdup(argv[0]); argv[0] = cmd = argv0; argv0[i] = '\0'; } @@ -382,16 +389,16 @@ static void handle_internal_command(int argc, const char **argv) struct cmd_struct *p = commands+i; if (strcmp(p->cmd, cmd)) continue; - exit(run_command(p, argc, argv)); + exit(run_builtin(p, argc, argv)); } } static void execv_dashed_external(const char **argv) { - struct strbuf cmd; + struct strbuf cmd = STRBUF_INIT; const char *tmp; + int status; - strbuf_init(&cmd, 0); strbuf_addf(&cmd, "git-%s", argv[0]); /* @@ -405,37 +412,55 @@ static void execv_dashed_external(const char **argv) trace_argv_printf(argv, "trace: exec:"); - /* execvp() can only ever return if it fails */ - execvp(cmd.buf, (char **)argv); - - trace_printf("trace: exec failed: %s\n", strerror(errno)); + /* + * 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, 0); + if (status != -ERR_RUN_COMMAND_EXEC) { + if (IS_RUN_COMMAND_ERR(status)) + die("unable to run '%s'", argv[0]); + exit(-status); + } + errno = ENOENT; /* as if we called execvp */ argv[0] = tmp; strbuf_release(&cmd); } - -int main(int argc, const char **argv) +static int run_argv(int *argcp, const char ***argv) { - const char *cmd = argv[0] && *argv[0] ? argv[0] : "git-help"; - char *slash = (char *)cmd + strlen(cmd); int done_alias = 0; - /* - * Take the basename of argv[0] as the command - * name, and the dirname as the default exec_path - * if we don't have anything better. - */ - do - --slash; - while (cmd <= slash && !is_dir_sep(*slash)); - if (cmd <= slash) { - *slash++ = 0; - git_set_argv0_path(cmd); - cmd = slash; + while (1) { + /* See if it's an internal command */ + handle_internal_command(*argcp, *argv); + + /* .. then try the external ones */ + execv_dashed_external(*argv); + + /* It could be an alias -- this works around the insanity + * of overriding "git log" with "git show" by having + * alias.log = show + */ + if (done_alias || !handle_alias(argcp, argv)) + break; + done_alias = 1; } + return done_alias; +} + + +int main(int argc, const char **argv) +{ + const char *cmd; + + cmd = git_extract_argv0_path(argv[0]); + if (!cmd) + cmd = "git-help"; + /* * "git-xxxx" is the same as "git xxxx", but we obviously: * @@ -472,36 +497,29 @@ int main(int argc, const char **argv) /* * We use PATH to find git commands, but we prepend some higher - * precidence paths: the "--exec-path" option, the GIT_EXEC_PATH + * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH * environment, and the $(gitexecdir) from the Makefile at build * time. */ setup_path(); while (1) { - /* See if it's an internal command */ - handle_internal_command(argc, argv); - - /* .. then try the external ones */ - execv_dashed_external(argv); - - /* It could be an alias -- this works around the insanity - * of overriding "git log" with "git show" by having - * alias.log = show - */ - if (done_alias || !handle_alias(&argc, &argv)) + static int done_help = 0; + static int was_alias = 0; + was_alias = run_argv(&argc, &argv); + if (errno != ENOENT) break; - done_alias = 1; - } - - if (errno == ENOENT) { - if (done_alias) { + if (was_alias) { fprintf(stderr, "Expansion of alias '%s' failed; " "'%s' is not a git-command\n", cmd, argv[0]); exit(1); } - help_unknown_cmd(cmd); + if (!done_help) { + cmd = argv[0] = help_unknown_cmd(cmd); + done_help = 1; + } else + break; } fprintf(stderr, "Failed to run command '%s': %s\n", |