Tom Mueller (pkg-discuss) wrote:
> jmr wrote:
>> Thanks Tom - as a workaround I could try the evaluation phase and if
>> the number of packages to install after evaluation are less than those
>> I gave it then this would indicate the user needs to do an
>> image-update and I can prompt them to that effect. If I had the data
>> before hand I could show a image-update icon beside the relevant
>> packages which would be a lot more helpful for the user.
> Be aware that this method could be fooled if a new version of a package
> includes a new dependency on a package that wasn't yet installed.
So IMHO the best would be to compare packages before and after eval:
Assuming that PKG_A PKG_B and PKG_C are installed and they have updates
available running evaluation:
BEFORE:
PKG_A_1
PKG_B_1
PKG_C_1
AFTER:
PKG_A_2
PKG_B_2
PKG_D_1
This means that PKG_A and PKG_B can be updated and also some dependency
will be installed PKG_D. If user wants to update PKG_C then only
image-update is an option as this is incorporated.
??
best
Michal
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