From ce697d052ac3651be311ea6a76a10f03e3c33050 Mon Sep 17 00:00:00 2001
From: James Crook <james.k.crook@gmail.com>
Date: Sat, 13 Jan 2018 13:54:44 +0000
Subject: [PATCH] mod-script-pipe python scripts working on linux too.

- Pipe names are different on Linux.
- End of line is different on linux.
- The pipe must be opened with 'w+' not just 'w'.
---
 scripts/piped-work/get-gui-structure.py | 48 +++++++++++++++++++----
 scripts/piped-work/pipe-test.py         | 52 ++++++++++++++++++++-----
 2 files changed, 83 insertions(+), 17 deletions(-)

diff --git a/scripts/piped-work/get-gui-structure.py b/scripts/piped-work/get-gui-structure.py
index 12abf5fb3..516bfac7f 100644
--- a/scripts/piped-work/get-gui-structure.py
+++ b/scripts/piped-work/get-gui-structure.py
@@ -1,16 +1,46 @@
 # get-gui-structure.py
 # Obtains all menus and all box locations from the currently running Audacity.
+# This is useful for wit.audacityteam.org, where we need these lists when we
+# draw the menus and create the image maps.
+
+# Make sure Audacity is running first and that mod-script-pipe is enabled
+# before running this script.
+
+import os
+import sys
 
 
-toname = '\\\\.\\pipe\\ToSrvPipe'
-fromname = '\\\\.\\pipe\\FromSrvPipe'
+if( sys.platform  == 'win32' ):
+    print( "get-gui-structure.py, running on windows" )
+    toname = '\\\\.\\pipe\\ToSrvPipe'
+    fromname = '\\\\.\\pipe\\FromSrvPipe'
+    EOL = '\r\n\0'
+else:
+    print( "get-gui-structure.py, running on linux or mac" )
+    toname = '/tmp/audacity_script_pipe.to.' + str(os.getuid())
+    fromname = '/tmp/audacity_script_pipe.from.' + str(os.getuid())
+    EOL = '\n'
 
-tofile = open( toname, 'wt' )
+print( "Write to  \"" + toname +"\"" )
+if not os.path.exists( toname ) :
+   print( " ..does not exist.  Ensure Audacity is running with mod-script-pipe." )
+   sys.exit();
+    
+print( "Read from \"" + fromname +"\"")
+if not os.path.exists( fromname ) :
+   print( " ..does not exist.  Ensure Audacity is running with mod-script-pipe." )
+   sys.exit();
+
+print( "-- Both pipes exist.  Good." )
+
+tofile = open( toname, 'wt+' )
+print( "-- File to write to has been opened" )
 fromfile = open( fromname, 'rt')
+print( "-- File to read from has now been opened too\r\n" )
 
 def sendCommand( command ) :
-    print( "Send: "+command )
-    tofile.write( command + '\r\n\0' )
+    print( "Send: >>> "+command )
+    tofile.write( command + EOL )	
     tofile.flush()
 
 def getResponse() :
@@ -24,15 +54,19 @@ def getResponse() :
 def doCommand( command ) :
     sendCommand( command )
     response = getResponse()
-    print( "Rcvd: " + response )
+    print( "Rcvd: <<< " + response )
     return response
 
 def do( command ) :
     doCommand( command )
 
+
 def getStructure() :
+    #do( 'Help: CommandName=Help' )
+    #do( 'Help: CommandName=SetPreference' )
+    #do( 'SetPreference: PrefName=GUI/Theme PrefValue=light' )
+    #do( 'Screenshot: CaptureMode=menus' )
     do( 'GetBoxes' )
-    #doCommand( 'Screenshot: CaptureMode=menus' )
     do( 'GetMenusPlus' )
 
 getStructure()
diff --git a/scripts/piped-work/pipe-test.py b/scripts/piped-work/pipe-test.py
index 4108b1e8e..50a390404 100644
--- a/scripts/piped-work/pipe-test.py
+++ b/scripts/piped-work/pipe-test.py
@@ -4,16 +4,45 @@
 # You can make more complicated longer tests to test other functionality
 # or to generate screenshots etc in other scripts.
 
+# Make sure Audacity is running first and that mod-script-pipe is enabled
+# before running this script.
 
-toname = '\\\\.\\pipe\\ToSrvPipe'
-fromname = '\\\\.\\pipe\\FromSrvPipe'
+import os
+import sys
 
-tofile = open( toname, 'wt' )
+
+if( sys.platform  == 'win32' ):
+    print( "pipe-test.py, running on windows" )
+    toname = '\\\\.\\pipe\\ToSrvPipe'
+    fromname = '\\\\.\\pipe\\FromSrvPipe'
+    EOL = '\r\n\0'
+else:
+    print( "pipe-test.py, running on linux or mac" )
+    toname = '/tmp/audacity_script_pipe.to.' + str(os.getuid())
+    fromname = '/tmp/audacity_script_pipe.from.' + str(os.getuid())
+    EOL = '\n'
+
+print( "Write to  \"" + toname +"\"" )
+if not os.path.exists( toname ) :
+   print( " ..does not exist.  Ensure Audacity is running with mod-script-pipe." )
+   sys.exit();
+    
+print( "Read from \"" + fromname +"\"")
+if not os.path.exists( fromname ) :
+   print( " ..does not exist.  Ensure Audacity is running with mod-script-pipe." )
+   sys.exit();
+
+print( "-- Both pipes exist.  Good." )
+
+tofile = open( toname, 'wt+' )
+print( "-- File to write to has been opened" )
 fromfile = open( fromname, 'rt')
+print( "-- File to read from has now been opened too\r\n" )
+
 
 def sendCommand( command ) :
-    print( "Send: "+command )
-    tofile.write( command + '\r\n\0' )
+    print( "Send: >>> "+command )
+    tofile.write( command + EOL )	
     tofile.flush()
 
 def getResponse() :
@@ -22,18 +51,21 @@ def getResponse() :
     while line != '\n' :
         result += line
         line = fromfile.readline()
+	#print(" I read line:["+line+"]")
     return result
 
 def doCommand( command ) :
     sendCommand( command )
     response = getResponse()
-    print( "Rcvd: " + response )
+    print( "Rcvd: <<< " + response )
     return response
 
-def quickTest() :
-    doCommand( 'Help: CommandName=Help' )
-    doCommand( 'Help: CommandName=SetPreference' )
-    doCommand( 'SetPreference: PrefName=GUI/Theme PrefValue=light' )
+def do( command ) :
+    doCommand( command )
 
+def quickTest() :
+    do( 'Help: CommandName=Help' )
+    do( 'Help: CommandName=SetPreference' )
+    do( 'SetPreference: PrefName=GUI/Theme PrefValue=light' )
 
 quickTest()