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mangleVarList() {
local var="$1"
shift
local -a role_infixes=("$@")
local outputVar="${var/+/_@infixSalt@_}"
declare -gx ${outputVar}+=''
# For each role we serve, we accumulate the input parameters into our own
# cc-wrapper-derivation-specific environment variables.
for infix in "${role_infixes[@]}"; do
local inputVar="${var/+/${infix}}"
if [ -v "$inputVar" ]; then
export ${outputVar}+="${!outputVar:+ }${!inputVar}"
fi
done
}
mangleVarBool() {
local var="$1"
shift
local -a role_infixes=("$@")
local outputVar="${var/+/_@infixSalt@_}"
declare -gxi ${outputVar}+=0
for infix in "${role_infixes[@]}"; do
local inputVar="${var/+/${infix}}"
if [ -v "$inputVar" ]; then
let "${outputVar} |= ${!inputVar}"
fi
done
}
skip () {
if (( "${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
else
echo "Response files aren't supported during bootstrapping" >&2
return 1
fi
fi
done
}
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