build: preparatory refactoring

[platform/upstream/automake.git] / lib / py-compile

diff --git a/lib/py-compile b/lib/py-compile
index 2a526ca..46ea866 100755 (executable)
--- a/lib/py-compile
+++ b/lib/py-compile
@@ -3,8 +3,7 @@
 
 scriptversion=2011-06-08.12; # UTC
 
-# Copyright (C) 2000, 2001, 2003, 2004, 2005, 2008, 2009, 2011 Free
-# Software Foundation, Inc.
+# Copyright (C) 2000-2013 Free Software Foundation, 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
@@ -32,15 +31,22 @@ if [ -z "$PYTHON" ]; then
   PYTHON=python
 fi
 
+me=py-compile
+
+usage_error ()
+{
+  echo "$me: $*" >&2
+  echo "Try '$me --help' for more information." >&2
+  exit 1
+}
+
 basedir=
 destdir=
-files=
 while test $# -ne 0; do
   case "$1" in
     --basedir)
       if test $# -lt 2; then
-        echo "$0: Missing argument to --basedir." 1>&2
-        exit 1
+        usage_error "option '--basedir' requires an argument"
       else
         basedir=$2
       fi
@@ -48,14 +54,13 @@ while test $# -ne 0; do
       ;;
     --destdir)
       if test $# -lt 2; then
-        echo "$0: Missing argument to --destdir." 1>&2
-        exit 1
+        usage_error "option '--destdir' requires an argument"
       else
         destdir=$2
       fi
       shift
       ;;
-    -h|--h*)
+    -h|--help)
       cat <<\EOF
 Usage: py-compile [--help] [--version] [--basedir DIR] [--destdir DIR] FILES..."
 
@@ -71,20 +76,27 @@ Report bugs to <bug-automake@gnu.org>.
 EOF
       exit $?
       ;;
-    -v|--v*)
-      echo "py-compile $scriptversion"
+    -v|--version)
+      echo "$me $scriptversion"
       exit $?
       ;;
+    --)
+      shift
+      break
+      ;;
+    -*)
+      usage_error "unrecognized option '$1'"
+      ;;
     *)
-      files="$files $1"
+      break
       ;;
   esac
   shift
 done
 
+files=$*
 if test -z "$files"; then
-    echo "$0: No files given.  Try \`$0 --help' for more information." 1>&2
-    exit 1
+    usage_error "no files given"
 fi
 
 # if basedir was given, then it should be prepended to filenames before
@@ -104,7 +116,7 @@ else
 fi
 
 $PYTHON -c "
-import sys, os, py_compile
+import sys, os, py_compile, imp
 
 files = '''$files'''
 
@@ -117,12 +129,19 @@ for file in files.split():
            continue
     sys.stdout.write(file)
     sys.stdout.flush()
-    py_compile.compile(filepath, filepath + 'c', path)
+    if hasattr(imp, 'get_tag'):
+        py_compile.compile(filepath, imp.cache_from_source(filepath), path)
+    else:
+        py_compile.compile(filepath, filepath + 'c', path)
 sys.stdout.write('\n')" || exit $?
 
 # this will fail for python < 1.5, but that doesn't matter ...
 $PYTHON -O -c "
-import sys, os, py_compile
+import sys, os, py_compile, imp
+
+# pypy does not use .pyo optimization
+if hasattr(sys, 'pypy_translation_info'):
+    sys.exit(0)
 
 files = '''$files'''
 sys.stdout.write('Byte-compiling python modules (optimized versions) ...\n')
@@ -134,7 +153,10 @@ for file in files.split():
            continue
     sys.stdout.write(file)
     sys.stdout.flush()
-    py_compile.compile(filepath, filepath + 'o', path)
+    if hasattr(imp, 'get_tag'):
+        py_compile.compile(filepath, imp.cache_from_source(filepath, False), path)
+    else:
+        py_compile.compile(filepath, filepath + 'o', path)
 sys.stdout.write('\n')" 2>/dev/null || :
 
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