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34 lines
1020 B
34 lines
1020 B
# The program `remove-references-to' created by this derivation replaces all |
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# references to the given Nix store paths in the specified files by a |
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# non-existent path (/nix/store/eeee...). This is useful for getting rid of |
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# dependencies that you know are not actually needed at runtime. |
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{ stdenv, writeScriptBin }: |
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writeScriptBin "remove-references-to" '' |
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#! ${stdenv.shell} -e |
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# References to remove |
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targets=() |
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while getopts t: o; do |
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case "$o" in |
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t) storeId=$(echo "$OPTARG" | sed -n "s|^$NIX_STORE/\\([a-z0-9]\{32\}\\)-.*|\1|p") |
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if [ -z "$storeId" ]; then |
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echo "-t argument must be a Nix store path" |
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exit 1 |
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fi |
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targets+=("$storeId") |
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esac |
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done |
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shift $(($OPTIND-1)) |
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# Files to remove the references from |
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regions=() |
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for i in "$@"; do |
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test ! -L "$i" -a -f "$i" && regions+=("$i") |
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done |
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for target in "''${targets[@]}" ; do |
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sed -i -e "s|$NIX_STORE/$target-|$NIX_STORE/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-|g" "''${regions[@]}" |
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done |
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''
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