updater: handle windows path in cygwin correctly

This is a huge mess. Any windows executable does not understand
cygwin paths but for example the bash script only understands unix paths.

Additionally, os.path is unixpath so it is not able to correctly handle
windows paths. We therefore convert everything that we need to handle
to unix paths and only the few paths that are passed in the end to windows
executables back to the native format. We selected mixed mode
(windows path with forward slash) to allow the unix scripts to manipulate
paths.

Change-Id: Ic443415ff5e8277bf0bb8704bbafd35f50767288
Reviewed-on: https://gerrit.libreoffice.org/40755Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

bin/update/create_full_mar.py

@@ -8,9 +8,9 @@ import json
 from tools import uncompress_file_to_dir, get_file_info, make_complete_mar_name
 from config import parse_config
 from signing import sign_mar_file
-from path import UpdaterPath
+from path import UpdaterPath, convert_to_unix, convert_to_native
 
-current_dir_path = os.path.dirname(os.path.realpath(__file__))
+current_dir_path = os.path.dirname(os.path.realpath(convert_to_unix(__file__)))
 
 def main():
     if len(sys.argv) < 5:
@@ -34,14 +34,14 @@ def main():
 
     config = parse_config(update_config)
 
-    tar_dir = os.path.join(workdir, "installation", product_name, "archive", "install", "en-US")
+    tar_dir = os.path.join(update_path.get_workdir(), "installation", product_name, "archive", "install", "en-US")
     tar_file = os.path.join(tar_dir, os.listdir(tar_dir)[0])
 
     uncompress_dir = uncompress_file_to_dir(tar_file, temp_dir)
 
     mar_file = make_complete_mar_name(target_dir, filename_prefix)
-    subprocess.call([os.path.join(current_dir_path, 'make_full_update.sh'), mar_file, uncompress_dir])
-
+    path = os.path.join(current_dir_path, 'make_full_update.sh')
+    subprocess.call([path, convert_to_native(mar_file), convert_to_native(uncompress_dir)])
 
     sign_mar_file(target_dir, config, mar_file, filename_prefix)
 

bin/update/path.py

@@ -9,6 +9,8 @@
 
 import os
 import errno
+import subprocess
+from sys import platform
 
 def mkdir_p(path):
     try:
@@ -19,10 +21,22 @@ def mkdir_p(path):
         else:
             raise
 
+def convert_to_unix(path):
+    if platform == "cygwin":
+        return subprocess.check_output(["cygpath", "-u", path]).decode("utf-8", "strict").rstrip()
+    else:
+        return path
+
+def convert_to_native(path):
+    if platform == "cygwin":
+        return subprocess.check_output(["cygpath", "-m", path]).decode("utf-8", "strict").rstrip()
+    else:
+        return path
+
 class UpdaterPath(object):
 
     def __init__(self, workdir):
-        self._workdir = workdir
+        self._workdir = convert_to_unix(workdir)
 
     def get_workdir(self):
         return self._workdir
@@ -41,6 +55,9 @@ class UpdaterPath(object):
 
     def get_language_dir(self):
         return os.path.join(self.get_mar_dir(), "language")
+
+    def get_workdir(self):
+        return self._workdir
     
     def ensure_dir_exist(self):
         mkdir_p(self.get_update_dir())

bin/update/signing.py

@@ -2,10 +2,11 @@ from tools import make_complete_mar_name
 
 import os
 import subprocess
+import path
 
 def sign_mar_file(target_dir, config, mar_file, filename_prefix):
     signed_mar_file = make_complete_mar_name(target_dir, filename_prefix + '_signed')
     mar_executable = os.environ.get('MAR', 'mar')
-    subprocess.check_call([mar_executable, '-C', target_dir, '-d', config.certificate_path, '-n', config.certificate_name, '-s', mar_file, signed_mar_file])
+    subprocess.check_call([mar_executable, '-C', path.convert_to_native(target_dir), '-d', path.convert_to_native(config.certificate_path), '-n', config.certificate_name, '-s', path.convert_to_native(mar_file), path.convert_to_native(signed_mar_file)])
 
     os.rename(signed_mar_file, mar_file)