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[packaging] Fix: Linux installers (migration/update/removal)

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Alexandr Stelnykovych
2025-03-25 14:30:46 +00:00
parent 6b958fd93d
commit f08a36f5ff
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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)
```