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055608227f
Nix expressions in that directory are combined into an attribute set
{file1 = import file1; file2 = import file2; ...}, i.e. each Nix
expression is an attribute with the file name as the attribute
name. Also recurses into directories.
* nix-env: removed the "--import" (-I) option which set the
~/.nix-defexpr symlink.
* nix-channel: don't use "nix-env --import", instead symlink
~/.nix-defexpr/channels. So finally nix-channel --update doesn't
override any default Nix expressions but combines with them.
This means that you can have (say) a local Nixpkgs SVN tree and use
it as a default for nix-env:
$ ln -s .../path-to-nixpkgs-tree ~/.nix-defexpr/nixpkgs_svn
and be subscribed to channels (including Nixpkgs) at the same time.
(If there is any ambiguity, the -A flag can be used to
disambiguate, e.g. "nix-env -i -A nixpkgs_svn.pan".)
26 lines
550 B
Bash
26 lines
550 B
Bash
#! @shell@ -e
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@coreutils@/mkdir $out
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@coreutils@/mkdir $out/tmp
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cd $out/tmp
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inputs=($inputs)
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for ((n = 0; n < ${#inputs[*]}; n += 2)); do
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channelName=${inputs[n]}
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channelTarball=${inputs[n+1]}
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echo "unpacking channel $channelName"
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@bunzip2@ < $channelTarball | @tar@ xf -
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nr=1
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attrName=$(echo $channelName | @tr@ -- '- ' '__')
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dirName=$attrName
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while test -e ../$dirName; do
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nr=$((nr+1))
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dirName=$attrName-$nr
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done
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@coreutils@/mv * ../$dirName # !!! hacky
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done
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cd ..
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@coreutils@/rmdir tmp
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