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safing-portmaster/packaging/linux/readme.md
Alexandr Stelnykovych f08a36f5ff [packaging] Fix: Linux installers (migration/update/removal)
2025-03-25 14:30:46 +00:00

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Installation scripts order

Execution order of installation scripts (preInstallScript, preRemoveScript, postInstallScript, postRemoveScript) is different for DEB and RPM packages. NOTE! 'remove' scripts is using from old version!

DEB scripts order

Useful link: https://wiki.debian.org/MaintainerScripts

DEB (apt) Install v2.2.2:
   [*] Before install (2.2.2 : deb : install)
   [*] After  install (2.2.2 : deb : configure)

DEB (apt) Upgrade v1.1.1 -> v2.2.2:
   [*] Before remove  (1.1.1 : deb : upgrade)
   [*] Before install (2.2.2 : deb : upgrade)
   [*] After  remove  (1.1.1 : deb : upgrade)
   [*] After  install (2.2.2 : deb : configure)

 DEB (apt) Remove:
   [*] Before remove  (1.1.1 : deb : remove)
   [*] After  remove  (1.1.1 : deb : remove)

RPM scripts order

Useful link: https://docs.fedoraproject.org/en-US/packaging-guidelines/Scriptlets/

When scriptlets are called, they will be supplied with an argument. This argument, accessed via $1 (for shell scripts) is the number of packages of this name which will be left on the system when the action completes.

 RPM (dnf) install:
   [*] Before install (2.2.2 : rpm : 1)
   [*] After  install (2.2.2 : rpm : 1)

 RPM (dnf) upgrade:
   [*] Before install (2.2.2 : rpm : 2)
   [*] After  install (2.2.2 : rpm : 2)
   [*] Before remove  (1.1.1 : rpm : 1)
   [*] After  remove  (1.1.1 : rpm : 1)

 RPM (dnf) remove:
   [*] Before remove  (2.2.2 : rpm : 0)
   [*] After  remove  (2.2.2 : rpm : 0)