mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-22 05:56:15 +02:00
e1131b5927
Some tools which consume the "nix print-dev-env" rc script (such as
"nix-direnv") are sensitive to the use of unbound variables. They use
"set -u".
The "nix print-dev-env" rc script initially unsets "shellHook", then
loads variables from the derivation, and then evaluates "shellHook".
However, most derivations don't have a "shellHook" attribute.
So users get the error "shellHook: unbound variable". This can be
demonstrated with the command:
nix print-dev-env nixpkgs#hello | bash -u
This commit changes the rc script to provide an empty fallback value
for the "shellHook" variable.
Closes: #7951 #8253
152 lines
5.6 KiB
Bash
152 lines
5.6 KiB
Bash
source common.sh
|
|
|
|
clearStore
|
|
|
|
if [[ -n ${CONTENT_ADDRESSED:-} ]]; then
|
|
shellDotNix="$PWD/ca-shell.nix"
|
|
else
|
|
shellDotNix="$PWD/shell.nix"
|
|
fi
|
|
|
|
export NIX_PATH=nixpkgs="$shellDotNix"
|
|
|
|
# Test nix-shell -A
|
|
export IMPURE_VAR=foo
|
|
export SELECTED_IMPURE_VAR=baz
|
|
|
|
output=$(nix-shell --pure "$shellDotNix" -A shellDrv --run \
|
|
'echo "$IMPURE_VAR - $VAR_FROM_STDENV_SETUP - $VAR_FROM_NIX - $TEST_inNixShell"')
|
|
|
|
[ "$output" = " - foo - bar - true" ]
|
|
|
|
# Test --keep
|
|
output=$(nix-shell --pure --keep SELECTED_IMPURE_VAR "$shellDotNix" -A shellDrv --run \
|
|
'echo "$IMPURE_VAR - $VAR_FROM_STDENV_SETUP - $VAR_FROM_NIX - $SELECTED_IMPURE_VAR"')
|
|
|
|
[ "$output" = " - foo - bar - baz" ]
|
|
|
|
# Test nix-shell on a .drv
|
|
[[ $(nix-shell --pure $(nix-instantiate "$shellDotNix" -A shellDrv) --run \
|
|
'echo "$IMPURE_VAR - $VAR_FROM_STDENV_SETUP - $VAR_FROM_NIX - $TEST_inNixShell"') = " - foo - bar - false" ]]
|
|
|
|
[[ $(nix-shell --pure $(nix-instantiate "$shellDotNix" -A shellDrv) --run \
|
|
'echo "$IMPURE_VAR - $VAR_FROM_STDENV_SETUP - $VAR_FROM_NIX - $TEST_inNixShell"') = " - foo - bar - false" ]]
|
|
|
|
# Test nix-shell on a .drv symlink
|
|
|
|
# Legacy: absolute path and .drv extension required
|
|
nix-instantiate "$shellDotNix" -A shellDrv --add-root $TEST_ROOT/shell.drv
|
|
[[ $(nix-shell --pure $TEST_ROOT/shell.drv --run \
|
|
'echo "$IMPURE_VAR - $VAR_FROM_STDENV_SETUP - $VAR_FROM_NIX"') = " - foo - bar" ]]
|
|
|
|
# New behaviour: just needs to resolve to a derivation in the store
|
|
nix-instantiate "$shellDotNix" -A shellDrv --add-root $TEST_ROOT/shell
|
|
[[ $(nix-shell --pure $TEST_ROOT/shell --run \
|
|
'echo "$IMPURE_VAR - $VAR_FROM_STDENV_SETUP - $VAR_FROM_NIX"') = " - foo - bar" ]]
|
|
|
|
# Test nix-shell -p
|
|
output=$(NIX_PATH=nixpkgs="$shellDotNix" nix-shell --pure -p foo bar --run 'echo "$(foo) $(bar)"')
|
|
[ "$output" = "foo bar" ]
|
|
|
|
# Test nix-shell -p --arg x y
|
|
output=$(NIX_PATH=nixpkgs="$shellDotNix" nix-shell --pure -p foo --argstr fooContents baz --run 'echo "$(foo)"')
|
|
[ "$output" = "baz" ]
|
|
|
|
# Test nix-shell shebang mode
|
|
sed -e "s|@ENV_PROG@|$(type -P env)|" shell.shebang.sh > $TEST_ROOT/shell.shebang.sh
|
|
chmod a+rx $TEST_ROOT/shell.shebang.sh
|
|
|
|
output=$($TEST_ROOT/shell.shebang.sh abc def)
|
|
[ "$output" = "foo bar abc def" ]
|
|
|
|
# Test nix-shell shebang mode again with metacharacters in the filename.
|
|
# First word of filename is chosen to not match any file in the test root.
|
|
sed -e "s|@ENV_PROG@|$(type -P env)|" shell.shebang.sh > $TEST_ROOT/spaced\ \\\'\"shell.shebang.sh
|
|
chmod a+rx $TEST_ROOT/spaced\ \\\'\"shell.shebang.sh
|
|
|
|
output=$($TEST_ROOT/spaced\ \\\'\"shell.shebang.sh abc def)
|
|
[ "$output" = "foo bar abc def" ]
|
|
|
|
# Test nix-shell shebang mode for ruby
|
|
# This uses a fake interpreter that returns the arguments passed
|
|
# This, in turn, verifies the `rc` script is valid and the `load()` script (given using `-e`) is as expected.
|
|
sed -e "s|@SHELL_PROG@|$(type -P nix-shell)|" shell.shebang.rb > $TEST_ROOT/shell.shebang.rb
|
|
chmod a+rx $TEST_ROOT/shell.shebang.rb
|
|
|
|
output=$($TEST_ROOT/shell.shebang.rb abc ruby)
|
|
[ "$output" = '-e load(ARGV.shift) -- '"$TEST_ROOT"'/shell.shebang.rb abc ruby' ]
|
|
|
|
# Test nix-shell shebang mode for ruby again with metacharacters in the filename.
|
|
# Note: fake interpreter only space-separates args without adding escapes to its output.
|
|
sed -e "s|@SHELL_PROG@|$(type -P nix-shell)|" shell.shebang.rb > $TEST_ROOT/spaced\ \\\'\"shell.shebang.rb
|
|
chmod a+rx $TEST_ROOT/spaced\ \\\'\"shell.shebang.rb
|
|
|
|
output=$($TEST_ROOT/spaced\ \\\'\"shell.shebang.rb abc ruby)
|
|
[ "$output" = '-e load(ARGV.shift) -- '"$TEST_ROOT"'/spaced \'\''"shell.shebang.rb abc ruby' ]
|
|
|
|
# Test nix-shell shebang quoting
|
|
sed -e "s|@ENV_PROG@|$(type -P env)|" shell.shebang.nix > $TEST_ROOT/shell.shebang.nix
|
|
chmod a+rx $TEST_ROOT/shell.shebang.nix
|
|
$TEST_ROOT/shell.shebang.nix
|
|
|
|
# Test 'nix develop'.
|
|
nix develop -f "$shellDotNix" shellDrv -c bash -c '[[ -n $stdenv ]]'
|
|
|
|
# Ensure `nix develop -c` preserves stdin
|
|
echo foo | nix develop -f "$shellDotNix" shellDrv -c cat | grepQuiet foo
|
|
|
|
# Ensure `nix develop -c` actually executes the command if stdout isn't a terminal
|
|
nix develop -f "$shellDotNix" shellDrv -c echo foo |& grepQuiet foo
|
|
|
|
# Test 'nix print-dev-env'.
|
|
|
|
nix print-dev-env -f "$shellDotNix" shellDrv > $TEST_ROOT/dev-env.sh
|
|
nix print-dev-env -f "$shellDotNix" shellDrv --json > $TEST_ROOT/dev-env.json
|
|
|
|
# Test with raw drv
|
|
|
|
shellDrv=$(nix-instantiate "$shellDotNix" -A shellDrv.out)
|
|
|
|
nix develop $shellDrv -c bash -c '[[ -n $stdenv ]]'
|
|
|
|
nix print-dev-env $shellDrv > $TEST_ROOT/dev-env2.sh
|
|
nix print-dev-env $shellDrv --json > $TEST_ROOT/dev-env2.json
|
|
|
|
diff $TEST_ROOT/dev-env{,2}.sh
|
|
diff $TEST_ROOT/dev-env{,2}.json
|
|
|
|
# Ensure `nix print-dev-env --json` contains variable assignments.
|
|
[[ $(jq -r .variables.arr1.value[2] $TEST_ROOT/dev-env.json) = '3 4' ]]
|
|
|
|
# Run tests involving `source <(nix print-dev-env)` in subshells to avoid modifying the current
|
|
# environment.
|
|
|
|
set -u
|
|
|
|
# Ensure `source <(nix print-dev-env)` modifies the environment.
|
|
(
|
|
path=$PATH
|
|
source $TEST_ROOT/dev-env.sh
|
|
[[ -n $stdenv ]]
|
|
[[ ${arr1[2]} = "3 4" ]]
|
|
[[ ${arr2[1]} = $'\n' ]]
|
|
[[ ${arr2[2]} = $'x\ny' ]]
|
|
[[ $(fun) = blabla ]]
|
|
[[ $PATH = $(jq -r .variables.PATH.value $TEST_ROOT/dev-env.json):$path ]]
|
|
)
|
|
|
|
# Ensure `source <(nix print-dev-env)` handles the case when PATH is empty.
|
|
(
|
|
path=$PATH
|
|
PATH=
|
|
source $TEST_ROOT/dev-env.sh
|
|
[[ $PATH = $(PATH=$path jq -r .variables.PATH.value $TEST_ROOT/dev-env.json) ]]
|
|
)
|
|
|
|
# Test nix-shell with ellipsis and no `inNixShell` argument (for backwards compat with old nixpkgs)
|
|
cat >$TEST_ROOT/shell-ellipsis.nix <<EOF
|
|
{ system ? "x86_64-linux", ... }@args:
|
|
assert (!(args ? inNixShell));
|
|
(import $shellDotNix { }).shellDrv
|
|
EOF
|
|
nix-shell $TEST_ROOT/shell-ellipsis.nix --run "true"
|