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this happens e.g. after tmpfs boot when not all packages where
available: the dependency is in world, but not installed.
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add also a test case for this
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fixes #1482
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Select latest version of package (if it is not pinned), and print
error if it cannot be installed due to other dependencies.
Together with --available, it selects the latest package which is
present at least in some repository.
This also fixes few solver issues with ordering of package selection
that got quite apparent with this flag. Namely, we cannot "lock"
a package until it's reverse dependencies are locked or not all of
the solver flags are propagated properly.
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the pinning11 changed when @repo got the leading @ on error messages.
analyze_dep() now properly ignores conflict dependencies, as those
names are usually intentionally left unassigned.
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if all packages named N provide the virtual package, list only the
name N instead of all packages providing it.
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and add the provided version information to the conflicts.
fixes the final test case that was broken. hooray.
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Instead of the dependency oriented logic, switch to print them
for each package or name needed. Might give a bit more readable
errors now. There's still few corner cases that proper error is
not output, which are cought by the test cases.
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mostly useful for reboot, when all packages are not available.
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Fix also pinning test cases to be more sane.
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Handle properly per-name preference flags, and add test cases
for testing those via fix applet.
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Implementing basic dependency handling, install_if and awareness
of pinning.
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make cache a special kind of repository, and automatically cache
special packages (virtual packages, or ones installed from command
line). add test cases for handling virtual packages. fixes #1617.
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The 'a' package is now more preferred which actually makes more
sense.
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Solver will now never report partial solution where a conflict
constraint is not satisfied. The is because with --force we might
install the partial solution; and if conflicted packages were to
be installed we might have extra trouble.
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ref #574
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ref #574
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ref #574
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* take list of tests to run (and default to all)
* merge the awk invocation to a function
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Otherwise we might start to change packages unexpectedly when not
upgrading. This also fixes some other things the solver might've
decided to do.
Add also few test cases to detect bad behaviour.
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Will use 'p' for provides.
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also merge the expected output to the *.test files.
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Forgot to reset per-name penalty when it got locked by apply_decision.
This also fine tunes compare_package_preference() to always prefer
packages specified on command line speeding up calculation certain
complicated solutions.
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Previously we would cache the penalty when evaluating the final
solution, and adding that until we backtrack to first topology
position changing that penalty. However, we can just keep track
of minimum penalty based on name state, and add it. This allows
us to bail out early on bad branches because we know in advance
how things will turn out.
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Improves /etc/apk/repositories format so you can say:
http://nl.alpinelinux.org/alpine/v2.3/main
@edge http://nl.alpinelinux.org/alpine/edge/main
@testing http://nl.alpinelinux.org/alpine/edge/testing
After which you can pin dependencies to these tags using:
apk add stableapp newapp@edge bleedingapp@testing
Apk will now by default only use the untagged repositories,
but adding a tag to specific dependency:
1. will prefer that tag for the name
2. allowing pulling in dependencies from that tag (though,
it prefers untagged packages to satisfy deps if possible)
fixes #575
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One can now say in dependency "!foo<2" which means, that if foo is
installed, it needs to be >=2, but it's not a required dependency.
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Should now choose packages better if the best available version
is uninstallable for some reason.
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Allow to select packages that conflict in case we are looking for
errors. This allows 'add --force' to install (on boot) the set of
packages with minimum conflicts.
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* each package name has two sorting positions, one which causes
install_if triggers to be run, and other for bulk dependencies
* fix also inverted ordering of package installations
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* the solver no longer does look-ahead locking of names
(could be possibly optimized later); instead names are now
always ordered strictly to properly detect the package names
which are unsolveable
* basic error tests added, so we can see the most likely problem
in dependencies easily
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Packages that need (re-)installation but which are not available,
are excluded now properly.
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The first found solution is the most preferred one then.
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* basic code for a backtracking, forward checking dependency satisfier
* works better when there are tricky dependencies to solve
(when can't just upgrade everything to most preferred versions)
* the new code always evaluates all of 'world' constraints
(old code just does incremental updates based on heuristics)
* is probably somewhat slower than old code (probably unnoticeable
difference in most cases)
* makes easier to write support for provides and repository pinning
* test applet and a bunch of test cases added which uses the new code
* from the old feature set install_if is not yet implemented
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That way we can set sh options case by case
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so i don't get to break version compares again.
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