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74 lines
1.8 KiB
74 lines
1.8 KiB
#! /bin/sh -e |
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url=$1 |
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rev=$2 |
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expHash=$3 |
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hashType=$NIX_HASH_ALGO |
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if test -z "$hashType"; then |
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hashType=sha256 |
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fi |
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if test -z "$hashFormat"; then |
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hashFormat=--base32 |
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fi |
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if test -z "$url"; then |
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echo "syntax: nix-prefetch-bzr URL [REVISION [EXPECTED-HASH]]" >&2 |
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exit 1 |
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fi |
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revarg="-r $rev" |
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test -n "$rev" || revarg="" |
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repoName=$(echo $url | sed ' |
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s,.*/\([^/]\+\)/trunk/*$,\1,;t |
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s,.*/\([^/]\+\)/branches/\([^/]\+\)/*$,\1-\2,;t |
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s,.*/\([^/]\+\)/tags/\([^/]\+\)/*$,\1-\2,;t |
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s,.*/\([^/]\+\)/*$,\1,;t |
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') |
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dstFile="bzr-export" |
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# If the hash was given, a file with that hash may already be in the |
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# store. |
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if test -n "$expHash"; then |
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finalPath=$(nix-store --print-fixed-path --recursive "$hashType" "$expHash" $dstFile) |
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if ! nix-store --check-validity "$finalPath" 2> /dev/null; then |
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finalPath= |
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fi |
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hash=$expHash |
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fi |
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# If we don't know the hash or a path with that hash doesn't exist, |
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# download the file and add it to the store. |
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if test -z "$finalPath"; then |
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tmpPath="$(mktemp -d "${TMPDIR:-/tmp}/bzr-checkout-tmp-XXXXXXXX")" |
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trap "rm -rf \"$tmpPath\"" EXIT |
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tmpFile="$tmpPath/$dstFile" |
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# Perform the checkout. |
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bzr -Ossl.cert_reqs=none export $revarg --format=dir "$tmpFile" "$url" |
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echo "bzr revision is $(bzr revno $revarg "$url")" |
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# Compute the hash. |
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hash=$(nix-hash --type $hashType $hashFormat $tmpFile) |
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if ! test -n "$QUIET"; then echo "hash is $hash" >&2; fi |
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# Add the downloaded file to the Nix store. |
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finalPath=$(nix-store --add-fixed --recursive "$hashType" $tmpFile) |
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if test -n "$expHash" -a "$expHash" != "$hash"; then |
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echo "hash mismatch for URL \`$url'" |
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exit 1 |
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fi |
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fi |
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if ! test -n "$QUIET"; then echo "path is $finalPath" >&2; fi |
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echo $hash |
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if test -n "$PRINT_PATH"; then |
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echo $finalPath |
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fi
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