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https://github.com/libguestfs/libguestfs.git
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b659d044f7
Add an optional parameter for Python_script.create, to specific the temporary directory to use instead of creating a new one.
67 lines
2.4 KiB
OCaml
67 lines
2.4 KiB
OCaml
(* virt-v2v
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* Copyright (C) 2009-2019 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*)
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(** Call into external Python code. *)
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type script
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val create : ?name:string -> ?tmpdir:string -> string -> script
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(** Create a Python script object.
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The optional parameter [?name] is a hint for the name of the script.
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The optional parameter [?tmpdir] is the temporary directory to use
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(instead of creating a new one).
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The parameter is the Python code. Usually this is
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[Some_source.code] where [some_source.ml] is generated from
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the Python file by [v2v/embed.sh] (see also [v2v/Makefile.am]). *)
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val run_command : ?echo_cmd:bool -> ?stdout_fd:Unix.file_descr -> ?stderr_fd:Unix.file_descr -> script -> JSON.doc -> string list -> int
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(** [run_command script params args] is a wrapper around
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{!Tools_utils.run_command} which runs the Python script with the
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supplied list of JSON parameters and the list of extra arguments.
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The JSON parameters are written into a temporary file and the
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filename is supplied as a parameter to the script, so the script
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must do this to read the parameters:
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{v
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with open(sys.argv[1], 'r') as fp:
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params = json.load(fp)
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v}
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The extra arguments, if any, are passed verbatim on the
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script command line in [sys.argv[2:]].
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*)
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val path : script -> string
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(** Return the temporary path to the script.
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This temporary script is deleted when the program exits so don't
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try using/storing it beyond the lifetime of the program.
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This is used only where {!run_command} is not suitable. *)
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val python : string
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(** Return the name of the Python interpreter. *)
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val error_unless_python_interpreter_found : unit -> unit
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(** Check if the Python interpreter can be found on the path, and
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call [error] (which is fatal) if not. *)
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