I have drush 8 up and running ok on windows 10 with cygwin, except for running an sql-sync command.
When running the command to sync from stag(remote) to dev(local), it generated the dump file on the remote server fine but then has a problem pulling it down to my local machine.
Adding the -verbose option to the sql-sync command reveals that the path that it tries to put the database dump file is wrong.
as you can see the path is wrong.

You will delete files in /cygdrive/C/wamp/www/kev//cygdrive/C/Users/2pha/AppData/Local/Temp/kev_stag_20170123_095407.sql
.gz and replace with data from twopha@XXX.XXX.XX.XXX:/home/twopha/drush-backups/kev_stag/20170123095407/kev_stag_2017012
Do you really want to continue? (y/n): y
Calling system(rsync -e 'ssh ' -akzv --exclude=".git" --exclude=".gitignore" --exclude=".hg" --exclude=".hgignore" --exc
lude=".hgrags" --exclude=".bzr" --exclude=".bzrignore" --exclude=".bzrtags" --exclude=".svn" --stats --progress --remove
-source-files twopha@ /
receiving incremental file list
rsync: change_dir#3 "/cygdrive/C/wamp/www/kev//cygdrive/C/Users/2pha/AppData/Local/Temp" failed: No such file or directo
ry (2)
rsync error: errors selecting input/output files, dirs (code 3) at main.c(713) [Receiver=3.1.2]

Here is the relevant part of my aliases:

$aliases['dev'] = array(
  'root' => 'C:/wamp/www/kev',
  'uri'  => 'localsite.dev',
  'path-aliases' => array(
    '%dump-dir' => 'c:/wamp/tmp',
    '%files' => 'sites/default/files',
    'source-command-specific' => array (
    'sql-sync' => array (
      'no-cache' => TRUE,
        'create-db' => TRUE,
        'mode' => 'rultvz',

$aliases['stag'] = array (
  'uri' => 'xxx.xxx.com',
  'root' => '/var/www/xxx.xxx.com/public_html',
  'remote-user' => 'serveruser',
  'remote-host' => 'xxx.xxx.xxx.xxx',
  'path-aliases' => array(
    '%dump-dir' => '/tmp',
    '%files' => 'sites/default/files',
  'source-command-specific' => array (
    'sql-sync' => array (
      'no-cache' => TRUE,
  // No need to modify the following settings
  'command-specific' => array (
    'sql-sync' => array (
      'sanitize' => TRUE,
      'no-ordered-dump' => TRUE,
      'structure-tables' => array(
       // You can add more tables which contain data to be ignored by the database dump
        'common' => array('cache', 'cache_filter', 'cache_menu', 'cache_page', 'history', 'sessions', 'watchdog'),

Also, while running rsync to sync the files, the paths seems all messed up:
I ran:
drush rsync @kev.stage:%files/ @kev.dev:%files
And this is what I got (notice the paths):

You will delete files in /cygdrive/C/wamp/www/kev//cygdrive/C/wamp/www/kev/sites/default/files and replace with data fro
m @kev.stage:/cygdrive/C/wamp/www/kev//cygdrive/C/wamp/www/kev/sites/default/files/

So, as far as using drush (specifically sql-sync and rsync with cygwin)
Is there some setting I am missing in relation to the paths?
Has someone encountered this before?
Is this a Drush bug? (I did search the issue queue but found nothing)

Drush issues that seem relevant:
Drush is converting Cygwin paths unnecessarily. If Cygwin PHP is being used, paths should not be converted.
fix for use under cygwin's php

closed as off-topic by kiamlaluno Feb 3 '17 at 12:13

  • This question does not appear to be about Drupal within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

  • As a temporary solution, I have altered the drush_sitealias_evaluate_path function in drush/includes/sitealias.inc to look for 2 occurrences of /cygdrive if(substr_count($site_alias_settings['evaluated-path'], '/cygdrive') > 1) and if found remove everything before second occurrence $site_alias_settings['evaluated-path'] = trim(substr($site_alias_settings['evaluated-path'], strrpos($site_alias_settings['evaluated-path'], '/cygdrive')));. It works, but I feel dirty altering a drush function. – 2pha Jan 26 '17 at 11:16
  • I'm voting to close this question as off-topic because it is about a bug in third-party software that should be reported in the proper channel. – kiamlaluno Feb 3 '17 at 12:13
  • Is it a bug? I'm not sure if it is. – 2pha Feb 3 '17 at 12:24
  • From the issues you linked, it has been considered a bug. If it wasn't a bug, Moshe Weitzman would have answered differently, for example saying there is a setting you need to change. – kiamlaluno Feb 3 '17 at 12:36

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