utils.bash: revert #93560 for darwin, unblocks channels

Temporary fix. We definitely do not want to have two separate
implementations.
This commit is contained in:
Frederik Rietdijk 2020-09-06 17:58:38 +02:00 committed by Frederik Rietdijk
parent b23940e514
commit 08eb704bc3
2 changed files with 93 additions and 1 deletions

View file

@ -311,7 +311,7 @@ stdenv.mkDerivation {
substituteAll ${./add-flags.sh} $out/nix-support/add-flags.sh
substituteAll ${./add-hardening.sh} $out/nix-support/add-hardening.sh
substituteAll ${../wrapper-common/utils.bash} $out/nix-support/utils.bash
substituteAll ${if stdenv.isDarwin then ../wrapper-common/utils.bash.darwin else ../wrapper-common/utils.bash} $out/nix-support/utils.bash
''
##

View file

@ -0,0 +1,92 @@
# Accumulate suffixes for taking in the right input parameters with the `mangle*`
# functions below. See setup-hook for details.
accumulateRoles() {
declare -ga role_suffixes=()
if [ "${NIX_@wrapperName@_TARGET_BUILD_@suffixSalt@:-}" ]; then
role_suffixes+=('_FOR_BUILD')
fi
if [ "${NIX_@wrapperName@_TARGET_HOST_@suffixSalt@:-}" ]; then
role_suffixes+=('')
fi
if [ "${NIX_@wrapperName@_TARGET_TARGET_@suffixSalt@:-}" ]; then
role_suffixes+=('_FOR_TARGET')
fi
}
mangleVarList() {
local var="$1"
shift
local -a role_suffixes=("$@")
local outputVar="${var}_@suffixSalt@"
declare -gx ${outputVar}+=''
# For each role we serve, we accumulate the input parameters into our own
# cc-wrapper-derivation-specific environment variables.
for suffix in "${role_suffixes[@]}"; do
local inputVar="${var}${suffix}"
if [ -v "$inputVar" ]; then
export ${outputVar}+="${!outputVar:+ }${!inputVar}"
fi
done
}
mangleVarBool() {
local var="$1"
shift
local -a role_suffixes=("$@")
local outputVar="${var}_@suffixSalt@"
declare -gxi ${outputVar}+=0
for suffix in "${role_suffixes[@]}"; do
local inputVar="${var}${suffix}"
if [ -v "$inputVar" ]; then
# "1" in the end makes `let` return success error code when
# expression itself evaluates to zero.
# We don't use `|| true` because that would silence actual
# syntax errors from bad variable values.
let "${outputVar} |= ${!inputVar:-0}" "1"
fi
done
}
skip () {
if (( "${NIX_DEBUG:-0}" >= 1 )); then
echo "skipping impure path $1" >&2
fi
}
# Checks whether a path is impure. E.g., `/lib/foo.so' is impure, but
# `/nix/store/.../lib/foo.so' isn't.
badPath() {
local p=$1
# Relative paths are okay (since they're presumably relative to
# the temporary build directory).
if [ "${p:0:1}" != / ]; then return 1; fi
# Otherwise, the path should refer to the store or some temporary
# directory (including the build directory).
test \
"$p" != "/dev/null" -a \
"${p:0:${#NIX_STORE}}" != "$NIX_STORE" -a \
"${p:0:4}" != "/tmp" -a \
"${p:0:${#NIX_BUILD_TOP}}" != "$NIX_BUILD_TOP"
}
expandResponseParams() {
declare -ga params=("$@")
local arg
for arg in "$@"; do
if [[ "$arg" == @* ]]; then
# phase separation makes this look useless
# shellcheck disable=SC2157
if [ -x "@expandResponseParams@" ]; then
# params is used by caller
#shellcheck disable=SC2034
readarray -d '' params < <("@expandResponseParams@" "$@")
return 0
fi
fi
done
}