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https://github.com/NixOS/nix.git
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c11836126b
Use `set -u` and `set -o pipefail` to catch accidental mistakes and failures more strongly. - `set -u` catches the use of undefined variables - `set -o pipefail` catches failures (like `set -e`) earlier in the pipeline. This makes the tests a bit more robust. It is nice to read code not worrying about these spurious success paths (via uncaught) errors undermining the tests. Indeed, I caught some bugs doing this. There are a few tests where we run a command that should fail, and then search its output to make sure the failure message is one that we expect. Before, since the `grep` was the last command in the pipeline the exit code of those failing programs was silently ignored. Now with `set -o pipefail` it won't be, and we have to do something so the expected failure doesn't accidentally fail the test. To do that we use `expect` and a new `expectStderr` to check for the exact failing exit code. See the comments on each for why. `grep -q` is replaced with `grepQuiet`, see the comments on that function for why. `grep -v` when we just want the exit code is replaced with `grepInverse, see the comments on that function for why. `grep -q -v` together is, surprise surprise, replaced with `grepQuietInverse`, which is both combined. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
151 lines
3.5 KiB
Bash
151 lines
3.5 KiB
Bash
source ./common.sh
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requireGit
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flakeFollowsA=$TEST_ROOT/follows/flakeA
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flakeFollowsB=$TEST_ROOT/follows/flakeA/flakeB
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flakeFollowsC=$TEST_ROOT/follows/flakeA/flakeB/flakeC
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flakeFollowsD=$TEST_ROOT/follows/flakeA/flakeD
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flakeFollowsE=$TEST_ROOT/follows/flakeA/flakeE
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# Test following path flakerefs.
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createGitRepo $flakeFollowsA
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mkdir -p $flakeFollowsB
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mkdir -p $flakeFollowsC
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mkdir -p $flakeFollowsD
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mkdir -p $flakeFollowsE
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cat > $flakeFollowsA/flake.nix <<EOF
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{
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description = "Flake A";
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inputs = {
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B = {
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url = "path:./flakeB";
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inputs.foobar.follows = "foobar";
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};
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foobar.url = "path:$flakeFollowsA/flakeE";
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};
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outputs = { ... }: {};
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}
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EOF
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cat > $flakeFollowsB/flake.nix <<EOF
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{
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description = "Flake B";
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inputs = {
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foobar.url = "path:$flakeFollowsA/flakeE";
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goodoo.follows = "C/goodoo";
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C = {
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url = "path:./flakeC";
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inputs.foobar.follows = "foobar";
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};
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};
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outputs = { ... }: {};
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}
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EOF
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cat > $flakeFollowsC/flake.nix <<EOF
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{
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description = "Flake C";
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inputs = {
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foobar.url = "path:$flakeFollowsA/flakeE";
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goodoo.follows = "foobar";
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};
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outputs = { ... }: {};
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}
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EOF
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cat > $flakeFollowsD/flake.nix <<EOF
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{
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description = "Flake D";
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inputs = {};
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outputs = { ... }: {};
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}
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EOF
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cat > $flakeFollowsE/flake.nix <<EOF
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{
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description = "Flake E";
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inputs = {};
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outputs = { ... }: {};
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}
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EOF
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git -C $flakeFollowsA add flake.nix flakeB/flake.nix \
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flakeB/flakeC/flake.nix flakeD/flake.nix flakeE/flake.nix
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nix flake metadata $flakeFollowsA
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nix flake update $flakeFollowsA
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nix flake lock $flakeFollowsA
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oldLock="$(cat "$flakeFollowsA/flake.lock")"
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# Ensure that locking twice doesn't change anything
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nix flake lock $flakeFollowsA
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newLock="$(cat "$flakeFollowsA/flake.lock")"
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diff <(echo "$newLock") <(echo "$oldLock")
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[[ $(jq -c .nodes.B.inputs.C $flakeFollowsA/flake.lock) = '"C"' ]]
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[[ $(jq -c .nodes.B.inputs.foobar $flakeFollowsA/flake.lock) = '["foobar"]' ]]
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[[ $(jq -c .nodes.C.inputs.foobar $flakeFollowsA/flake.lock) = '["B","foobar"]' ]]
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# Ensure removing follows from flake.nix removes them from the lockfile
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cat > $flakeFollowsA/flake.nix <<EOF
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{
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description = "Flake A";
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inputs = {
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B = {
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url = "path:./flakeB";
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};
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D.url = "path:./flakeD";
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};
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outputs = { ... }: {};
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}
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EOF
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nix flake lock $flakeFollowsA
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[[ $(jq -c .nodes.B.inputs.foobar $flakeFollowsA/flake.lock) = '"foobar"' ]]
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jq -r -c '.nodes | keys | .[]' $flakeFollowsA/flake.lock | grep "^foobar$"
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# Ensure a relative path is not allowed to go outside the store path
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cat > $flakeFollowsA/flake.nix <<EOF
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{
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description = "Flake A";
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inputs = {
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B.url = "path:../flakeB";
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};
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outputs = { ... }: {};
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}
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EOF
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git -C $flakeFollowsA add flake.nix
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expect 1 nix flake lock $flakeFollowsA 2>&1 | grep 'points outside'
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# Non-existant follows should print a warning.
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cat >$flakeFollowsA/flake.nix <<EOF
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{
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description = "Flake A";
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inputs.B = {
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url = "path:./flakeB";
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inputs.invalid.follows = "D";
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inputs.invalid2.url = "path:./flakeD";
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};
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inputs.D.url = "path:./flakeD";
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outputs = { ... }: {};
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}
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EOF
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git -C $flakeFollowsA add flake.nix
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nix flake lock $flakeFollowsA 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid'"
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nix flake lock $flakeFollowsA 2>&1 | grep "warning: input 'B' has an override for a non-existent input 'invalid2'"
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