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nixpkgs/pkgs/build-support/cc-wrapper/utils.sh
John Ericson 2493454e13 cc-wrapper: Use set -u throughout
Now is an opportune time to do this, as the infixSalt conversion in
`add-flags.sh` ensures that all the relevant `NIX_*` vars will be
defined even if empty.
2017-08-07 03:05:51 -04:00

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skip () {
if [ -n "${NIX_DEBUG:-}" ]; 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 -g params=("$@")
local arg
for arg in "$@"; do
if [[ "$arg" == @* ]]; then
# phase separation makes this look useless
# shellcheck disable=SC2157
if [ -n "@expandResponseParams@" ]; then
# params is used by caller
#shellcheck disable=SC2034
readarray -d '' params < <("@expandResponseParams@" "$@")
return 0
else
echo "Response files aren't supported during bootstrapping" >&2
return 1
fi
fi
done
}