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Ciaran McCreesh pisze: |
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> What all are blocks used for? |
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> |
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> a) Marking that two unrelated packages are mutually incompatible at |
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> runtime because they happen to collide, for example on a commonly named |
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> executable. |
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> |
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> b) Marking that two related implementations are mutually incompatible at |
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> runtime because they both provide the same binary. |
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> |
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> c) Marking that a file that used to be provided by one package is now |
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> provided by another package that is either depending upon or depended |
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> upon by the original package. |
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> |
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> d) Marking that a package has been moved into another package. |
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> |
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> Are there any other uses? |
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> |
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> For future EAPIs, being able to tell the package manager that your |
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> block is of one of the types above will help the package manager smooth |
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> out the upgrade path for users. |
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Yes, but You should be able to get upgrade without crashing Your system. |
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> For example, for class d) blocks such |
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> as the recent coreutils / mktemp mess, the package manager can suggest |
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> to the user to install the new package and then uninstall the old |
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> package, rather than forcing the user to uninstall the old package by |
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> hand (possibly leaving their system without critical utilities) and then |
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> install the new package. |
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> |
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It's good Idea until we get binary using different libs. When binaries |
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are rewritten to use new libs and this makes them placed in other |
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packages then emerge (as installing mechanism) _SOULD_NOT_ install that |
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package until user decide what should do. Just as it is now. People are |
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designed to use brain so uninstall package is no problem. This is also |
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in some part warning to try revdep-rebuild because some dependencies |
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could be changed. Revdep-rebuild allso should be running by emerge? |
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> I strongly suspect that in many (but not all) cases the package manager |
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> could be making users' lives a lot easier than it currently is... |
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> |
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> |
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And I strongly suggest to leave old mechanism of portage, because we saw |
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couple times what _GREAT_ automatic makes with distro - eg. Mandriva |
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with all creators and cheap installer - couple apps not running, low |
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performance. |
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|
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Don't get me wrong - I also have that problems, and they make me |
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nervous, but when I think what could I done by automatic replace package |
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or binary then I get to thinking that everything is ok... |
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-- |
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