Consolidated i18n commands test with the rest of the i18n tests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14133 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/i18n/commands/tests.py

@@ -0,0 +1,43 @@
+import os
+import re
+from subprocess import Popen, PIPE
+
+def find_command(cmd, path=None, pathext=None):
+    if path is None:
+        path = os.environ.get('PATH', []).split(os.pathsep)
+    if isinstance(path, basestring):
+        path = [path]
+    # check if there are funny path extensions for executables, e.g. Windows
+    if pathext is None:
+        pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD').split(os.pathsep)
+    # don't use extensions if the command ends with one of them
+    for ext in pathext:
+        if cmd.endswith(ext):
+            pathext = ['']
+            break
+    # check if we find the command on PATH
+    for p in path:
+        f = os.path.join(p, cmd)
+        if os.path.isfile(f):
+            return f
+        for ext in pathext:
+            fext = f + ext
+            if os.path.isfile(fext):
+                return fext
+    return None
+
+# checks if it can find xgettext on the PATH and
+# imports the extraction tests if yes
+xgettext_cmd = find_command('xgettext')
+if xgettext_cmd:
+    p = Popen('%s --version' % xgettext_cmd, shell=True, stdout=PIPE, stderr=PIPE, close_fds=os.name != 'nt', universal_newlines=True)
+    output = p.communicate()[0]
+    match = re.search(r'(?P<major>\d+)\.(?P<minor>\d+)', output)
+    if match:
+        xversion = (int(match.group('major')), int(match.group('minor')))
+        if xversion >= (0, 15):
+            from extraction import *
+    del p
+
+if find_command('msgfmt'):
+    from compilation import *