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#############################################################################
##
## This file is part of GAP, a system for computational discrete algebra.
## This file's authors include Frank Celler.
##
## Copyright of GAP belongs to its developers, whose names are too numerous
## to list here. Please refer to the COPYRIGHT file for details.
##
## SPDX-License-Identifier: GPL-2.0-or-later
##
## This file contains the methods for process.
##
#############################################################################
##
#M Process( <dir>, <prg>, <in-none>, <out-none>, <args> ) . . . . none/none
##
InstallMethod( Process,
[ IsDirectory and IsDirectoryRep,
IsString,
IsInputTextNone,
IsOutputTextNone,
IsList ],
function( dir, prg, input, output, args )
# get the directory path
dir := dir![1];
# convert the args
args := List( args, String );
# check path and program
if not IsDirectoryPath(dir) then
Error( "directory <dir> does not exist" );
fi;
if not IsExecutableFile(prg) then
Error( "program <prg> does not exist" );
fi;
# execute the process
return ExecuteProcess( dir, prg, -1, -1, args );
end );
#############################################################################
##
#M Process( <dir>, <prg>, <in-text>, <out-none>, <args> ) . . . . file/none
##
InstallMethod( Process,
[ IsDirectory and IsDirectoryRep,
IsString,
IsInputTextStream and IsInputTextFileRep,
IsOutputTextNone,
IsList ],
function( dir, prg, input, output, args )
# get the directory path
dir := dir![1];
# convert the args
args := List( args, String );
# check path and program
if not IsDirectoryPath(dir) then
Error( "directory <dir> does not exist" );
fi;
if not IsExecutableFile(prg) then
Error( "program <prg> does not exist" );
fi;
# execute the process
return ExecuteProcess( dir, prg, input![1], -1, args );
end );
#############################################################################
##
#M Process( <dir>, <prg>, <in-none>, <out-text>, <args> ) . . . . none/file
##
InstallMethod( Process,
[ IsDirectory and IsDirectoryRep,
IsString,
IsInputTextNone,
IsOutputTextStream and IsOutputTextFileRep,
IsList ],
function( dir, prg, input, output, args )
# get the directory path
dir := dir![1];
# convert the args
args := List( args, String );
# check path and program
if not IsDirectoryPath(dir) then
Error( "directory <dir> does not exist" );
fi;
if not IsExecutableFile(prg) then
Error( "program <prg> does not exist" );
fi;
# execute the process
return ExecuteProcess( dir, prg, -1, output![1], args );
end );
#############################################################################
##
#M Process( <dir>, <prg>, <in-text>, <out-text>, <args> ) . . . . file/file
##
BindGlobal( "EXECUTE_PROCESS_FILE_STREAM", function( dir, prg, input, output, args )
# get the directory path
dir := dir![1];
# convert the args
args := List( args, String );
# check path and program
if not IsDirectoryPath(dir) then
Error( "directory <dir> does not exist" );
fi;
if IsExecutableFile(prg) <> true then
Error( "program <prg> does not exist or is not executable" );
fi;
# execute the process
return ExecuteProcess( dir, prg, input![1], output![1], args );
end );
InstallMethod( Process,
[ IsDirectory and IsDirectoryRep,
IsString,
IsInputTextStream and IsInputTextFileRep,
IsOutputTextStream and IsOutputTextFileRep,
IsList ],
EXECUTE_PROCESS_FILE_STREAM );
#############################################################################
##
#M Process( <dir>, <prg>, <input>, <output>, <args> ) . . . . stream/stream
##
PROCESS_INPUT_TEMPORARY := fail;
PROCESS_OUTPUT_TEMPORARY := fail;
MakeThreadLocal("PROCESS_OUTPUT_TEMPORARY");
MakeThreadLocal("PROCESS_INPUT_TEMPORARY");
InstallMethod( Process,
[ IsDirectory and IsDirectoryRep,
IsString,
IsInputTextStream,
IsOutputTextStream,
IsList ],
function( dir, prg, input, output, args )
local name_input, new, name_output, res, new_output, alloutput,allinput;
# convert input into a file
if not IsInputTextFileRep(input) then
if (IsString(PROCESS_INPUT_TEMPORARY) and
(IsReadableFile(PROCESS_INPUT_TEMPORARY) or
IsWritableFile(PROCESS_INPUT_TEMPORARY))) then
PROCESS_INPUT_TEMPORARY:=fail;
fi;
while PROCESS_INPUT_TEMPORARY = fail do
PROCESS_INPUT_TEMPORARY := TmpName();
od;
name_input := PROCESS_INPUT_TEMPORARY;
new := OutputTextFile( name_input, true );
allinput := ReadAll(input);
if allinput= fail then
allinput := "";
fi;
WriteAll( new, allinput );
CloseStream(new);
input := InputTextFile( name_input );
fi;
# convert output into a file
if not IsOutputTextFileRep(output) then
if (IsString(PROCESS_OUTPUT_TEMPORARY) and
(IsReadableFile(PROCESS_OUTPUT_TEMPORARY) or
IsWritableFile(PROCESS_OUTPUT_TEMPORARY))) then
PROCESS_OUTPUT_TEMPORARY:=fail;
fi;
while PROCESS_OUTPUT_TEMPORARY = fail do
PROCESS_OUTPUT_TEMPORARY := TmpName();
od;
name_output := PROCESS_OUTPUT_TEMPORARY;
new_output := OutputTextFile( name_output, true );
else
new_output := output;
fi;
# call the process
res := EXECUTE_PROCESS_FILE_STREAM( dir, prg, input, new_output, args );
# remove temporary file
if IsBound(name_input) then
CloseStream(input);
RemoveFile(name_input);
fi;
if IsBound(name_output) then
CloseStream(new_output);
new := InputTextFile(name_output);
alloutput := ReadAll(new);
CloseStream(new);
RemoveFile(name_output);
if alloutput <> fail then
WriteAll( output, alloutput );
fi;
fi;
# return result of process
return res;
end );
#############################################################################
##
#F Exec( <str_1>, <str_2>, ..., <str_n> ) . . . . . . . . execute a command
##
InstallGlobalFunction( Exec, function( arg )
local cmd, i, shell, cs, dir;
# simply concatenate the arguments
cmd := ShallowCopy( arg[1] );
if not IsString(cmd) then
Error("the command ",cmd," is not a name.\n",
"possibly a binary is missing or has not been compiled.");
fi;
for i in [ 2 .. Length(arg) ] do
Append( cmd, " " );
Append( cmd, arg[i] );
od;
# select the shell, bourne shell is the default: sh -c cmd
if ARCH_IS_WINDOWS() then
# on Windows, we use the native shell such that behaviour does
# not depend on whether cygwin is installed or not.
# cmd.exe is preferable to old-style `command.com'
shell := PathSystemProgram( "cmd.exe" );
cs := "/C";
else
shell := PathSystemProgram( "sh" );
cs := "-c";
fi;
# execute in the current directory
dir := DirectoryCurrent();
# execute the command
Process( dir, shell, InputTextUser(), OutputTextUser(), [ cs, cmd ] );
end );
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