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There are three extensions in various versions:
1 version_XXX/plain.oxt has no dependencies and no license.
2a version_XXX/dependency.oxt has an unsatisfied dependency and no license.
2b version_nodependencies_XXX/dependency.oxt is identical to 2a but without the
dependency.
3 version_XXX/license.oxt has no dependencies and a license.
The different versions are:
A version_none contains no version element (treated as version "0").
B version_badelement contains a bad <version val="1"/> (not allowed by the
specification, but treated by the current implementation as version "0").
C version_badvalue contains a bad <version value="1.a"/> (not allowed by the
specification, but treated by the current implementation as version "1").
D version_0.0 contains <version value="0.0"/> (same as version "0").
E version_1.2.3 contains <version value="1.2.3"/>.
F version_1.2.4.7 contains <version value="1.2.4.7"/>.
G version_1.02.4.7.0 contains <version value="1.02.4.7.0"/> (same as version
"1.2.4.7").
H version_1.2.15.3 contains <version value="1.2.15.3"/>.
The total order among the various versions is thus
A = B = D < C < E < F = G < H.
Things to watch for:
- If version y of extension e is to be installed and version x < y of
extension e is already installed, then
unopkg add e
will replace x with y.
- If version y of extension e is to be installed and version x >= y of
extension e is already installed, then
unopkg add e
will fail with an error message.
- If version y of extension e is to be installed and any version x of
extension e is already installed, then
unopkg add -f e
will replace x with y.
- If version y of extension e is to be installed and any version x of
extension e is already installed, then
unopkg gui "Add..."
and
soffice "Tools - Package Manager... - Add..."
will query with a dialog whether to replace x with y. The dialog will have
"OK" (replace) preselected if x < y, and "Cancel" otherwise.
- If replacing an installed version x of an extension e with a version y fails
because y has unsatisfied dependencies, or because y has a license to which the
user does not agree, version x is left installed afterwards.
- Checking for already installed versions of an extension is only done within a
single layer (unopkg versus unopkg --shared; "My Packages" versus
"OpenOffice Packages" in unopkg gui/soffice), not across layers.
