mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-25 03:17:13 +00:00
80 lines
1.9 KiB
Bash
Executable file
80 lines
1.9 KiB
Bash
Executable file
#! /bin/sh -e
|
|
|
|
url=$1
|
|
rev=$2
|
|
expHash=$3
|
|
|
|
hashType=$NIX_HASH_ALGO
|
|
if test -z "$hashType"; then
|
|
hashType=sha256
|
|
fi
|
|
if test -z "$hashFormat"; then
|
|
hashFormat=--base32
|
|
fi
|
|
|
|
if test -z "$url"; then
|
|
echo "syntax: nix-prefetch-bzr URL [REVISION [EXPECTED-HASH]]" >&2
|
|
exit 1
|
|
fi
|
|
|
|
revarg="-r $rev"
|
|
test -n "$rev" || revarg=""
|
|
|
|
repoName=$(echo $url | sed '
|
|
s,.*/\([^/]\+\)/trunk/*$,\1,;t
|
|
s,.*/\([^/]\+\)/branches/\([^/]\+\)/*$,\1-\2,;t
|
|
s,.*/\([^/]\+\)/tags/\([^/]\+\)/*$,\1-\2,;t
|
|
s,.*/\([^/]\+\)/*$,\1,;t
|
|
')
|
|
dstFile=$repoName-r$rev
|
|
test -n "$rev" || dstFile=$repoName
|
|
|
|
# If the hash was given, a file with that hash may already be in the
|
|
# store.
|
|
if test -n "$expHash"; then
|
|
finalPath=$(nix-store --print-fixed-path --recursive "$hashType" "$expHash" $dstFile)
|
|
if ! nix-store --check-validity "$finalPath" 2> /dev/null; then
|
|
finalPath=
|
|
fi
|
|
hash=$expHash
|
|
fi
|
|
|
|
|
|
# If we don't know the hash or a path with that hash doesn't exist,
|
|
# download the file and add it to the store.
|
|
if test -z "$finalPath"; then
|
|
tmpPath=/tmp/bzr-checkout-tmp-$$
|
|
tmpFile=$tmpPath/$dstFile
|
|
mkdir $tmpPath
|
|
|
|
trap "rm -rf $tmpPath" EXIT
|
|
|
|
# Perform the checkout.
|
|
if test "$NIX_PREFETCH_BZR_LEAVE_DOT_BZR" != 1
|
|
then
|
|
bzr export $revarg "$tmpFile" "$url" >&2
|
|
else
|
|
bzr checkout --lightweight $revarg "$url" "$tmpFile" >&2
|
|
fi
|
|
|
|
# Compute the hash.
|
|
hash=$(nix-hash --type $hashType $hashFormat $tmpFile)
|
|
if ! test -n "$QUIET"; then echo "hash is $hash" >&2; fi
|
|
|
|
# Add the downloaded file to the Nix store.
|
|
finalPath=$(nix-store --add-fixed --recursive "$hashType" $tmpFile)
|
|
|
|
if test -n "$expHash" -a "$expHash" != "$hash"; then
|
|
echo "hash mismatch for URL \`$url'"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
if ! test -n "$QUIET"; then echo "path is $finalPath" >&2; fi
|
|
|
|
echo $hash
|
|
|
|
if test -n "$PRINT_PATH"; then
|
|
echo $finalPath
|
|
fi
|