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109 | -- -*- coding: utf-8 -*-
--
-- ZanyBlue, an Ada library and framework for finite element analysis.
--
-- Copyright (c) 2012, 2016, Michael Rohan <mrohan@zanyblue.com>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions
-- are met:
--
-- * Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- * Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- * Neither the name of ZanyBlue nor the names of its contributors may
-- be used to endorse or promote products derived from this software
-- without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--
-- @usage which [ -e | -f ] name
-- @summary print the location of a file or command
-- @start-doc
-- Print the locations of files. The zbtest locates various files during the
-- execution of a test script, e.g., the "copy" command will copy a data file
-- located via a search of the directories on the "searchpath" parameter, the
-- "execute" command uses the "path" parameter. As an aid to debugging, the
-- "which" command print the results of these searches. The options select
-- the type of file to search for:
--
-- * "-e" Search for a file that is executables
-- * "-f" Search for a file
--
-- The result is printed.
--
-- Example:
--
-- * Executeable::
--
-- ZBTest> which -e ls
-- /bin/ls
--
with Ada.Strings.Wide_Fixed;
separate (ZBTest.Commands)
procedure Which_Command
(State : in out State_Type;
Args : List_Type)
is
use Ada.Strings.Wide_Fixed;
procedure Display_Path
(State : State_Type;
Name : String;
Executable : Boolean);
-- Search for a path name and display the result.
------------------
-- Display_Path --
------------------
procedure Display_Path
(State : State_Type;
Name : String;
Executable : Boolean)
is
begin
if Executable then
Print_00033 (+State.Locate_Executable (Name));
else
Print_00033 (+State.Locate_File (Name));
end if;
exception
when File_Not_Found =>
Print_10010 (+Name);
end Display_Path;
Executable : Boolean := False;
begin
for I in 2 .. Length (Args) loop
if Value (Args, I) = "-e" then
Executable := True;
elsif Value (Args, I) = "-f" then
Executable := False;
elsif Head (Value (Args, I), 1) = "-" then
raise Command_Usage_Error;
else
Display_Path (State, Value (Args, I), Executable);
end if;
end loop;
end Which_Command;
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