Lavoisier

Example:

lavoisier-upgrade.sh 2.1.1-SNAPSHOT

• check existence of needed commands (diff, patch, zip, unzip, xsltproc)
• check existence of the installer of old version (in directory 'upgrade')
• stop lavoisier service
• remove previous backup (from directory 'upgrade/backup')
• save user config:
  • create patch (in file 'upgrade/backup/patch.txt')
  • save current langage version (in file 'upgrade/backup/language.txt')
  • move old installer from directory 'upgrade' to 'upgrade/backup'
• download new version of lavoisier (to directory 'upgrade')
  • if name contains 'SNAPSHOT', then get the latest
  • else get the only matching file
• uninstall old version (remove all but 'upgrade' and VCS directories)
• install new version (unzip all)
• restore user config (apply patch and restore old langage version)

• check existence of needed commands
• check existence of needed files (in directory 'upgrade/backup')
• stop lavoisier service
• uninstall new version
• install old version
• restore user config