# HG changeset patch
# User Matt Harbison <matt_harbison@yahoo.com>
# Date 2015-03-21 03:32:00
# Node ID 01b39e821d00313c40c1ca2cb57719939bec9a76
# Parent  2bdd35ea0a03165f75bcfe6ae804aec378443818

crecord: conditionalize the imports that are not available on Windows

'fcntl', 'termios' and 'wcurses' are not available on the default Windows python
installation, and importing them caused widespread carnage in the test suite.
There were 29 different changed test files (on top of unrelated errors), mostly
in the form of an ImportError.

The failures weren't related to actual crecord use, and followed the import
chain:

    'localrepo' -> 'subrepo' -> 'cmdutil' -> 'crecord' -> 'fcntl'

diff --git a/mercurial/crecord.py b/mercurial/crecord.py
--- a/mercurial/crecord.py
+++ b/mercurial/crecord.py
@@ -12,7 +12,7 @@ from i18n import _
 import patch as patchmod
 import util, encoding
 
-import os, re, sys, fcntl, struct, termios, signal, tempfile, locale, cStringIO
+import os, re, sys, struct, signal, tempfile, locale, cStringIO
 
 # This is required for ncurses to display non-ASCII characters in default user
 # locale encoding correctly.  --immerrr
@@ -20,10 +20,14 @@ locale.setlocale(locale.LC_ALL, '')
 
 # os.name is one of: 'posix', 'nt', 'dos', 'os2', 'mac', or 'ce'
 if os.name == 'posix':
-    import curses
+    import curses, fcntl, termios
 else:
     # I have no idea if wcurses works with crecord...
-    import wcurses as curses
+    try:
+        import wcurses as curses
+    except ImportError:
+        # wcurses is not shipped on Windows by default
+        pass
 
 try:
     curses
diff --git a/tests/test-module-imports.t b/tests/test-module-imports.t
--- a/tests/test-module-imports.t
+++ b/tests/test-module-imports.t
@@ -21,6 +21,9 @@ hidden by deduplication algorithm in the
 these may expose other cycles.
 
   $ hg locate 'mercurial/**.py' | sed 's-\\-/-g' | xargs python "$import_checker"
+  mercurial/crecord.py mixed imports
+     stdlib:    fcntl, termios
+     relative:  curses
   mercurial/dispatch.py mixed imports
      stdlib:    commands
      relative:  error, extensions, fancyopts, hg, hook, util