Fix ebuild output in the presence of || in build-depends #127
Description
Currently, hackport is generating invalid ebuilds in the presence of || in the .cabal file's dependency constraints.
Here is an example with aeson-extra-0.5.1.1:
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library hs-source-dirs: src ghc-options: -Wall build-depends: aeson >=1.5.4.1 && <1.6 || >=2.0 && <2.2 , attoparsec >=0.11.3.4 && <0.15 , base >=4.7 && <4.18 , base-compat-batteries >=0.11.2 && <0.13 , bytestring >=0.10 && <0.12 , deepseq >=1.3 && <1.5 , recursion-schemes >=4.1.2 && <5.3 , scientific >=0.3 && <0.4 , semialign >=1 && <1.3 , template-haskell >=2.8 && <2.20 , text >=1.2 && <1.3 || >=2.0 && <2.1 , these >=1 && <1.2 , unordered-containers >=0.2 && <0.3 , vector >=0.10 && <0.14
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Generated
RDEPEND:RDEPEND=">=dev-haskell/attoparsec-0.11.3.4:=[profile?] <dev-haskell/attoparsec-0.15:=[profile?] >=dev-haskell/base-compat-batteries-0.11.2:=[profile?] <dev-haskell/base-compat-batteries-0.13:=[profile?] >=dev-haskell/recursion-schemes-4.1.2:=[profile?] <dev-haskell/recursion-schemes-5.3:=[profile?] >=dev-haskell/scientific-0.3:=[profile?] <dev-haskell/scientific-0.4:=[profile?] >=dev-haskell/semialign-1:=[profile?] <dev-haskell/semialign-1.3:=[profile?] >=dev-haskell/these-1:=[profile?] <dev-haskell/these-1.2:=[profile?] >=dev-haskell/unordered-containers-0.2:=[profile?] <dev-haskell/unordered-containers-0.3:=[profile?] >=dev-haskell/vector-0.10:=[profile?] <dev-haskell/vector-0.14:=[profile?] >=dev-lang/ghc-8.4.3:= || ( ( >=dev-haskell/aeson-1.5.4.1:=[profile?] <dev-haskell/aeson-1.6:=[profile?] ) ( >=dev-haskell/aeson-2.0:=[profile?] <dev-haskell/aeson-2.2:=[profile?] ) ) "
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pkgcheck scanoutput:BadDependency: version 0.5.1.1: = slot operator used inside || block: DEPEND="<dev-haskell/aeson-1.6:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: DEPEND="<dev-haskell/aeson-2.2:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: DEPEND=">=dev-haskell/aeson-1.5.4.1:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: DEPEND=">=dev-haskell/aeson-2.0:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: RDEPEND="<dev-haskell/aeson-1.6:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: RDEPEND="<dev-haskell/aeson-2.2:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: RDEPEND=">=dev-haskell/aeson-1.5.4.1:=[profile?]" BadDependency: version 0.5.1.1: = slot operator used inside || block: RDEPEND=">=dev-haskell/aeson-2.0:=[profile?]"