Merge branch 'jk/maint-pass-c-config-in-env'
[git/git.git] / git.c
diff --git a/git.c b/git.c
index e4cd016..d64ab1a 100644 (file)
--- a/git.c
+++ b/git.c
@@ -8,12 +8,13 @@ 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"
-       "           [-c name=value\n"
-       "           [--help] COMMAND [ARGS]";
+       "           [-c name=value] [--help]\n"
+       "           COMMAND [ARGS]";
 
 const char git_more_info_string[] =
        "See 'git help COMMAND' for more information on a specific command.";
 
+static struct startup_info git_startup_info;
 static int use_pager = -1;
 struct pager_config {
        const char *cmd;
@@ -188,7 +189,8 @@ static int handle_alias(int *argcp, const char ***argv)
                }
                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"
@@ -229,13 +231,14 @@ static int handle_alias(int *argcp, const char ***argv)
 
 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;
@@ -254,8 +257,12 @@ 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;
@@ -295,12 +302,12 @@ static void handle_internal_command(int argc, const char **argv)
                { "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 },
                { "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 },
                { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE },
                { "checkout-index", cmd_checkout_index,
@@ -313,7 +320,7 @@ static void handle_internal_command(int argc, const char **argv)
                { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
                { "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 },
                { "describe", cmd_describe, RUN_SETUP },
                { "diff", cmd_diff },
@@ -330,21 +337,21 @@ 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 },
+               { "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-tree", cmd_ls_tree, RUN_SETUP },
-               { "ls-remote", cmd_ls_remote },
+               { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
                { "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 },
@@ -360,7 +367,7 @@ static void handle_internal_command(int argc, const char **argv)
                { "pack-objects", cmd_pack_objects, RUN_SETUP },
                { "pack-redundant", cmd_pack_redundant, 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 },
@@ -370,7 +377,7 @@ static void handle_internal_command(int argc, const char **argv)
                { "reflog", cmd_reflog, RUN_SETUP },
                { "remote", cmd_remote, RUN_SETUP },
                { "replace", cmd_replace, RUN_SETUP },
-               { "repo-config", cmd_config },
+               { "repo-config", cmd_config, RUN_SETUP_GENTLY },
                { "rerere", cmd_rerere, RUN_SETUP },
                { "reset", cmd_reset, RUN_SETUP },
                { "rev-list", cmd_rev_list, RUN_SETUP },
@@ -378,9 +385,9 @@ 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-branch", cmd_show_branch, RUN_SETUP },
-               { "show", cmd_show, RUN_SETUP | USE_PAGER },
+               { "show", cmd_show, RUN_SETUP },
                { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
                { "stripspace", cmd_stripspace },
                { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
@@ -392,10 +399,10 @@ 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 },
+               { "var", cmd_var, RUN_SETUP_GENTLY },
                { "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 },
@@ -489,6 +496,8 @@ int main(int argc, const char **argv)
 {
        const char *cmd;
 
+       startup_info = &git_startup_info;
+
        cmd = git_extract_argv0_path(argv[0]);
        if (!cmd)
                cmd = "git-help";