Safe Haskell | None |
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Figure out the dependency relation between debianized source directories. The code to actually solve these dependency relations for a particular set of binary packages is in Debian.Repo.Dependency.
- data DepInfo = DepInfo {}
- buildDependencies :: Control -> Either String DepInfo
- type RelaxInfo = SrcPkgName -> BinPkgName -> Bool
- relaxDeps :: RelaxInfo -> [DepInfo] -> [DepInfo]
- newtype OldRelaxInfo = RelaxInfo [(BinPkgName, Maybe SrcPkgName)]
- oldRelaxDeps :: OldRelaxInfo -> [DepInfo] -> [DepInfo]
- data BuildableInfo a
- = BuildableInfo {
- readyTriples :: [(a, [a], [a])]
- allBlocked :: [a]
- | CycleInfo {
- depPairs :: [(a, a)]
- = BuildableInfo {
- buildable :: (a -> a -> Ordering) -> [a] -> BuildableInfo a
- compareSource :: DepInfo -> DepInfo -> Ordering
- orderSource :: (a -> a -> Ordering) -> [a] -> [a]
- genDeps :: [FilePath] -> IO (Either String [DepInfo])
- failPackage :: Eq a => (a -> a -> Ordering) -> a -> [a] -> ([a], [a])
- getSourceOrder :: FilePath -> IO (Either String [SrcPkgName])
Documentation
This type describes the build dependencies of a source package.
DepInfo | |
|
Preparing dependency info
buildDependencies :: Control -> Either String DepInfoSource
Return the dependency info for a source package with the given dependency relaxation. |According to debian policy, only the first paragraph in debian/control can be a source package http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-sourcecontrolfiles
type RelaxInfo = SrcPkgName -> BinPkgName -> BoolSource
Given a source package name and a binary package name, return False if the binary package should be ignored hwen deciding whether to build the source package. This is used to prevent build dependency cycles from triggering unnecessary rebuilds. (This is a replacement for the RelaxInfo type, which we temporarily rename OldRelaxInfo.)
relaxDeps :: RelaxInfo -> [DepInfo] -> [DepInfo]Source
Remove any dependencies that are designated "relaxed" by relaxInfo.
newtype OldRelaxInfo Source
Specifies build dependencies that should be ignored during the build decision. If the pair is (BINARY, Nothing) it means the binary package BINARY should always be ignored when deciding whether to build. If the pair is (BINARY, Just SOURCE) it means that binary package BINARY should be ignored when deiciding whether to build package SOURCE.
oldRelaxDeps :: OldRelaxInfo -> [DepInfo] -> [DepInfo]Source
Remove any dependencies that are designated "relaxed" by relaxInfo.
Using dependency info
data BuildableInfo a Source
BuildableInfo | |
| |
CycleInfo | |
|
buildable :: (a -> a -> Ordering) -> [a] -> BuildableInfo aSource
Given an ordering function representing the dependencies on a list of packages, return a triple: One ready package, the packages that depend on the ready package directly or indirectly, and all the other packages.
compareSource :: DepInfo -> DepInfo -> OrderingSource
This is a nice start. It ignores circular build depends and takes
a pretty simplistic approach to or
build depends. However, I
think this should work pretty nicely in practice.
Obsolete?
orderSource :: (a -> a -> Ordering) -> [a] -> [a]Source
Given a list of packages, sort them according to their apparant build dependencies so that the first element doesn't depend on any of the other packages.
genDeps :: [FilePath] -> IO (Either String [DepInfo])Source
Return the dependency info for a list of control files.
failPackage :: Eq a => (a -> a -> Ordering) -> a -> [a] -> ([a], [a])Source
Remove any packages which can't be built given that a package has failed.
getSourceOrder :: FilePath -> IO (Either String [SrcPkgName])Source
One example of how to tie the below functions together. In this
case fp
is the path to a directory that contains a bunch of
checked out source packages. The code will automatically look for
debian/control. It returns a list with the packages in the
order they should be built.