+(* Goalfile command line
+ * Copyright (C) 2019 Richard W.M. Jones
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *)
+
+open Printf
+
+open Utils
+
+(* See also "let id" in [lexer.mll]. *)
+let var_regexp =
+ Str.regexp "\\([a-zA-Z_][a-zA-Z0-9_]*\\)[ \t]*=[ \t]*\\(.*\\)"
+
+let usage =
+ "\
+goals: Build software.
+
+ goals [-f Goalfile] ['var=value' ...] ['target' ...]
+
+For detailed help see goals(1).
+
+Options:"
+
+let print_version () =
+ printf "%s %s\n" Config.package_name Config.package_version;
+ exit 0
+
+(* Get stdlib directory. *)
+let datadir =
+ try Sys.getenv "GOALS_DATADIR" with Not_found -> Config.datadir
+let stdlibdir = datadir // "stdlib"
+let prelude_file = stdlibdir // "prelude.gl"
+let () =
+ if not (is_directory stdlibdir) || not (Sys.file_exists prelude_file) then
+ failwithf "%s: cannot find the standard library directory, expected %s. If the standard library directory is in a non-standard location then set GOALS_DATADIR. If you can trying to run goals from the build directory then use ‘./run goals ...’"
+ Sys.executable_name stdlibdir
+
+let input_file, directory, includes, use_prelude, anon_vars, targets =
+ let args = ref [] in
+ let directory = ref "." in
+ let input_file = ref "Goalfile" in
+ let includes = ref [stdlibdir] in
+ let add_include dir = includes := dir :: !includes in
+ let use_prelude = ref true in
+
+ let argspec = [
+ "-C", Arg.Set_string directory,
+ "directory Change to directory before running";
+ "--directory", Arg.Set_string directory,
+ "directory Change to directory before running";
+ "-f", Arg.Set_string input_file,
+ "filename Set name of Goalfile";
+ "--file", Arg.Set_string input_file,
+ "filename Set name of Goalfile";
+ "-I", Arg.String add_include,
+ "dir Add include directory";
+ "--include", Arg.String add_include,
+ "dir Add include directory";
+ "--no-prelude",Arg.Clear use_prelude,
+ " Do not automatically use prelude.gl from stdlib";
+ "-V", Arg.Unit print_version,
+ " Print version and exit";
+ "--version", Arg.Unit print_version,
+ " Print version and exit";
+ ] in
+ let argspec = Arg.align argspec in
+ let anon_fun s = args := s :: !args in
+ Arg.parse argspec anon_fun usage;
+
+ let args = List.rev !args in
+ let directory = !directory in
+ let input_file = absolute_path !input_file in
+ (* Don't reverse includes - we want newer -I options to take precedence. *)
+ let includes = List.map absolute_path !includes in
+ let use_prelude = !use_prelude in
+
+ (* Get the anon var assignments and targets. *)
+ let anon_vars, targets =
+ List.partition (
+ fun arg -> Str.string_match var_regexp arg 0
+ ) args in
+ let anon_vars =
+ List.map (
+ fun arg ->
+ ignore (Str.string_match var_regexp arg 0);
+ let name = Str.matched_group 1 arg in
+ let expr = Str.matched_group 2 arg in
+ (name, expr)
+ ) anon_vars in
+
+ input_file, directory, includes, use_prelude, anon_vars, targets