notifications and cli mode

• cli-mode selection #66
• notifications on sync #63, thank you midN

welcome unison-dualside for real 2-way-sync

Main

• unison-dualside introduced for real 2 way syncing, thank you mickaelperrin
• new image for rsync based on alpine ( 10mb ), thank you Duske
• optimize fswatch to watch only useful events ( better performance ), thank you mickaelperrin
• Different fixes with filepaths, symlinks and some minors

See a detailed list here https://github.com/EugenMayer/docker-sync/milestone/5?closed=1.

docker-compose-dev.yml make docker-compose.yml portable

• by moving all changes initially made to your docker-compose.yml into docker-compose-dev.yml, your production docker-compose.yml stays portable #41
• Fixing a bug when docker-sync / docker-sync-stack has been symlinked #44 by mickaelperrin

unison slim image, docker-compose path and fswatch disabling

• You can no configure were you docker-compose file is located at, see configuration
• You can now disable the filewatcher using watch_strategy, configuration
• docker-compose gem is now part of the gem
• gem / lib was re-layouted to fit the library usage better
• tons of requires have been fixed for the script usage, see script usage
• A alpine based, slim unison image was created by onnimonni. Thank you!
• you can now customize which unison/rsync image you want to use ( experts only please! )

docker-sync-stack is here

• You can now start sync and docker-compose in one go - see the [[sync-stack documentation|2.2-sync-stack-commands]]
• rsync image is now checked for update ability to avoid issues with outdated images

Adresses further unison issues, minor features

• Missing stdout pipe and wrong color, thank you @mickaelperrin
• More verbose outputs on unison runs with verbose,, thank you @mickaelperrin
• Adding update-checker to ensure, that you run the newest docker-sync