Browse Source

nix-prefetch-hg: Various bash style improvements, fixes #9511

nixos-19.03
Benjamin Staffin 7 years ago committed by Rok Garbas
parent
commit
fc85f1beed
  1. 68
      pkgs/build-support/fetchhg/nix-prefetch-hg

68
pkgs/build-support/fetchhg/nix-prefetch-hg

@ -5,79 +5,79 @@ 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
hashType="${NIX_HASH_ALGO:-sha256}"
hashFormat=${hashFormat:-"--base32"}
rev="${rev:-tip}"
LOG() {
echo "$@" >&2
}
if test -z "$url"; then
echo "syntax: nix-prefetch-hg URL [rev [EXPECTED-HASH]]" >&2
exit 1
die() {
LOG "$@"
exit 1
}
if [[ -z "$url" || "$url" == "--help" ]]; then
die "Usage: nix-prefetch-hg URL [rev [EXPECTED-HASH]]"
fi
if test "$fetchSubrepos" == 1; then
if [[ "${fetchSubrepos:-0}" == 1 ]]; then
subrepoClause=S
else
subrepoClause=
fi
test -n "$rev" || rev="tip"
# If the hash was given, a file with that hash may already be in the
# store.
if test -n "$expHash"; then
if [[ -n "$expHash" ]]; then
finalPath=$(nix-store --print-fixed-path --recursive "$hashType" "$expHash" hg-archive)
if ! nix-store --check-validity "$finalPath" 2> /dev/null; then
finalPath=
fi
hash=$expHash
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
if [[ -z "$finalPath" ]]; then
tmpPath="$(mktemp -d "${TMPDIR:-/tmp}/hg-checkout-tmp-XXXXXXXX")"
trap "rm -rf \"$tmpPath\"" EXIT
cleanup() { x=$?; rm -rf "$tmpPath"; exit $x; }; trap cleanup EXIT
tmpArchive="$tmpPath/hg-archive"
# Perform the checkout.
if [[ $url != /* ]]; then
tmpClone=$tmpPath/hg-clone
hg clone -q -y -U "$url" $tmpClone >&2
if [[ "$url" != /* ]]; then
tmpClone="$tmpPath/hg-clone"
hg clone -q -y -U "$url" "$tmpClone" >&2
else
tmpClone=$url
fi
hg archive -q$subrepoClause -y -r "$rev" --cwd $tmpClone $tmpArchive
rm -f $tmpArchive/.hg_archival.txt
hg archive -q$subrepoClause -y -r "$rev" --cwd "$tmpClone" "$tmpArchive"
rm -f "$tmpArchive/.hg_archival.txt"
echo "hg revision is $(cd $tmpClone; hg id -r "$rev" -i)"
LOG "hg revision is $(cd "$tmpClone"; hg id -r "$rev" -i)"
# Compute the hash.
hash=$(nix-hash --type $hashType $hashFormat $tmpArchive)
if ! test -n "$QUIET"; then echo "hash is $hash" >&2; fi
hash=$(nix-hash --type "$hashType" "$hashFormat" "$tmpArchive")
if [[ -z "$QUIET" ]]; then LOG "hash is $hash"; fi
# Add the downloaded file to the Nix store.
finalPath=$(nix-store --add-fixed --recursive "$hashType" $tmpArchive)
finalPath=$(nix-store --add-fixed --recursive "$hashType" "$tmpArchive")
if test -n "$expHash" -a "$expHash" != "$hash"; then
echo "hash mismatch for URL \`$url'"
exit 1
if [[ -n "$expHash" && "$expHash" != "$hash" ]]; then
die "ERROR: hash mismatch for URL \`$url'"
fi
fi
if ! test -n "$QUIET"; then echo "path is $finalPath" >&2; fi
if [[ -z "$QUIET" ]]; then LOG "path is $finalPath"; fi
echo $hash
echo "$hash"
if test -n "$PRINT_PATH"; then
echo $finalPath
if [[ -n "$PRINT_PATH" ]]; then
echo "$finalPath"
fi

Loading…
Cancel
Save