mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-21 21:54:10 +00:00
78 lines
2 KiB
Bash
78 lines
2 KiB
Bash
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"
|
|
}
|
|
|
|
# @args.rsp parser.
|
|
# Char classes: space, other, backslash, single quote, double quote.
|
|
# States: 0 - outside, 1/2 - unquoted arg/slash, 3/4 - 'arg'/slash, 5/6 - "arg"/slash.
|
|
# State transitions:
|
|
rspT=(01235 01235 11111 33413 33333 55651 55555)
|
|
# Push char on transition:
|
|
rspC[01]=1 rspC[11]=1 rspC[21]=1 rspC[33]=1 rspC[43]=1 rspC[55]=1 rspC[65]=1
|
|
|
|
rspParse() {
|
|
rsp=()
|
|
local s="$1"
|
|
local state=0
|
|
local arg=''
|
|
|
|
for (( i=0; i<${#s}; i++ )); do
|
|
local c="${s:$i:1}"
|
|
local cls=1
|
|
case "$c" in
|
|
' ' | $'\t' | $'\r' | $'\n') cls=0 ;;
|
|
'\') cls=2 ;;
|
|
"'") cls=3 ;;
|
|
'"') cls=4 ;;
|
|
esac
|
|
local nextstates="${rspT[$state]}"
|
|
local nextstate="${nextstates:$cls:1}"
|
|
if [ "${rspC[$state$nextstate]}" ]; then
|
|
arg+="$c"
|
|
elif [ "$state$nextstate" = "10" ]; then
|
|
rsp+=("$arg")
|
|
arg=''
|
|
fi
|
|
state="$nextstate"
|
|
done
|
|
|
|
if [ "$state" -ne 0 ]; then
|
|
rsp+=("$arg")
|
|
fi
|
|
}
|
|
|
|
expandResponseParams() {
|
|
params=()
|
|
while [ $# -gt 0 ]; do
|
|
local p="$1"
|
|
shift
|
|
if [ "${p:0:1}" = '@' -a -e "${p:1}" ]; then
|
|
rspParse "$(<"${p:1}")"
|
|
set -- "${rsp[@]}" "$@"
|
|
else
|
|
params+=("$p")
|
|
fi
|
|
done
|
|
}
|