mirror of
https://github.com/NixOS/nixpkgs.git
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46 lines
1 KiB
Bash
Executable file
46 lines
1 KiB
Bash
Executable file
#! /bin/sh -e
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distDir=${NIX_TARBALLS_CACHE:-/tarballs}
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url="$1"
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file="$2"
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if [ -z "$url" ]; then echo "syntax: $0 URL"; exit 0; fi
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base="$(basename "$url")"
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if [ -z "$base" ]; then echo "bad URL"; exit 1; fi
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dstPath="$distDir/$base"
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if [ -e "$dstPath" ]; then if [ -n "$VERBOSE" ]; then echo "$dstPath already exists"; fi; exit 0; fi
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if [ -z "$file" ]; then
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echo "downloading $url to $dstPath"
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if [ -n "$DRY_RUN" ]; then exit 0; fi
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declare -a res
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if ! res=($(PRINT_PATH=1 nix-prefetch-url "$url")); then
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exit
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fi
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storePath=${res[1]}
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else
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storePath="$file"
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fi
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cp $storePath "$dstPath.tmp.$$"
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mv -f "$dstPath.tmp.$$" "$dstPath"
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echo "hashing $dstPath"
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md5=$(nix-hash --flat --type md5 "$dstPath")
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ln -sfn "../$base" $distDir/md5/$md5
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sha1=$(nix-hash --flat --type sha1 "$dstPath")
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ln -sfn "../$base" $distDir/sha1/$sha1
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sha256=$(nix-hash --flat --type sha256 "$dstPath")
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ln -sfn "../$base" $distDir/sha256/$sha256
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ln -sfn "../$base" $distDir/sha256/$(nix-hash --type sha256 --to-base32 "$sha256")
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