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(* virt-v2v
* Copyright (C) 2009-2020 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 Std_utils
open Tools_utils
open Unix_utils
open Common_gettext.Gettext
let python = "python3" (* Defined by PEP 394 *)
type script = {
tmpdir : string; (* Temporary directory. *)
path : string; (* Path to script. *)
}
let create ?(name = "script.py") code =
let tmpdir = Mkdtemp.temp_dir "v2v." in
On_exit.rm_rf tmpdir;
let path = tmpdir // name in
with_open_out path (fun chan -> output_string chan code);
{ tmpdir; path }
let run_command ?echo_cmd ?stdout_fd ?stderr_fd
{ tmpdir; path } params args =
let param_file = tmpdir // sprintf "params%d.json" (unique ()) in
with_open_out
param_file
(fun chan -> output_string chan (JSON.string_of_doc params));
Tools_utils.run_command ?echo_cmd ?stdout_fd ?stderr_fd
(python :: path :: param_file :: args)
let path { path } = path
let error_unless_python_interpreter_found () =
try ignore (which python)
with Executable_not_found _ ->
error (f_"no python binary called ‘%s’ can be found on the $PATH")
python
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