Merge remote-tracking branch 'origin/master' into lazy-trees

tests/ca-shell.nix

@@ -1 +1 @@
-{ ... }@args: import ./shell.nix (args // { contentAddressed = true; })
+{ inNixShell ? false, ... }@args: import ./shell.nix (args // { contentAddressed = true; })

tests/flakes.sh

@@ -410,8 +410,10 @@ cat > $templatesDir/trivial/flake.nix <<EOF
   };
 }
 EOF
+echo a > $templatesDir/trivial/a
+echo b > $templatesDir/trivial/b
 
-git -C $templatesDir add flake.nix trivial/flake.nix
+git -C $templatesDir add flake.nix trivial/
 git -C $templatesDir commit -m 'Initial'
 
 nix flake check templates
@@ -426,6 +428,18 @@ nix flake show $flake7Dir
 nix flake show $flake7Dir --json | jq
 git -C $flake7Dir commit -a -m 'Initial'
 
+# Test 'nix flake init' with benign conflicts
+rm -rf $flake7Dir && mkdir $flake7Dir && git -C $flake7Dir init
+echo a > $flake7Dir/a
+(cd $flake7Dir && nix flake init) # check idempotence
+
+# Test 'nix flake init' with conflicts
+rm -rf $flake7Dir && mkdir $flake7Dir && git -C $flake7Dir init
+echo b > $flake7Dir/a
+pushd $flake7Dir
+(! nix flake init) |& grep "refusing to overwrite existing file '$flake7Dir/a'"
+popd
+
 # Test 'nix flake new'.
 rm -rf $flake6Dir
 nix flake new -t templates#trivial $flake6Dir
@@ -793,6 +807,8 @@ nix flake metadata $flakeFollowsA
 
 nix flake update $flakeFollowsA
 
+nix flake lock $flakeFollowsA
+
 oldLock="$(cat "$flakeFollowsA/flake.lock")"
 
 # Ensure that locking twice doesn't change anything
@@ -815,7 +831,6 @@ cat > $flakeFollowsA/flake.nix <<EOF
     inputs = {
         B = {
             url = "path:./flakeB";
-            inputs.nonFlake.follows = "D";
         };
         D.url = "path:./flakeD";
     };
@@ -851,3 +866,21 @@ nix store delete $(nix store add-path $badFlakeDir)
 
 [[ $(nix path-info      $(nix store add-path $flake1Dir)) =~ flake1 ]]
 [[ $(nix path-info path:$(nix store add-path $flake1Dir)) =~ simple ]]
+
+# Non-existant follows causes an error
+
+cat >$flakeFollowsA/flake.nix <<EOF
+{
+    description = "Flake A";
+    inputs.B = {
+        url = "path:./flakeB";
+        inputs.invalid.follows = "D";
+    };
+    inputs.D.url = "path:./flakeD";
+    outputs = { ... }: {};
+}
+EOF
+
+git -C $flakeFollowsA add flake.nix
+
+nix flake lock $flakeFollowsA 2>&1 | grep "warning: B has a \`follows'-declaration for a non-existant input invalid!"

tests/lang.sh

@@ -5,6 +5,8 @@ export NIX_REMOTE=dummy://
 
 nix-instantiate --eval -E 'builtins.trace "Hello" 123' 2>&1 | grep -q Hello
 nix-instantiate --eval -E 'builtins.addErrorContext "Hello" 123' 2>&1
+nix-instantiate --trace-verbose --eval -E 'builtins.traceVerbose "Hello" 123' 2>&1 | grep -q Hello
+(! nix-instantiate --eval -E 'builtins.traceVerbose "Hello" 123' 2>&1 | grep -q Hello)
 (! nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" 123' 2>&1 | grep -q Hello)
 nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" (throw "Foo")' 2>&1 | grep -q Hello
 

tests/nix-shell.sh

@@ -102,3 +102,11 @@ source <(nix print-dev-env -f "$shellDotNix" shellDrv)
 [[ ${arr2[1]} = $'\n' ]]
 [[ ${arr2[2]} = $'x\ny' ]]
 [[ $(fun) = blabla ]]
+
+# Test nix-shell with ellipsis and no `inNixShell` argument (for backwards compat with old nixpkgs)
+cat >$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"

tests/repl.sh

@@ -55,15 +55,17 @@ testRepl
 testRepl --store "$TEST_ROOT/store?real=$NIX_STORE_DIR"
 
 testReplResponse () {
-    local response="$(nix repl <<< "$1")"
-    echo "$response" | grep -qs "$2" \
+    local commands="$1"; shift
+    local expectedResponse="$1"; shift
+    local response="$(nix repl "$@" <<< "$commands")"
+    echo "$response" | grep -qs "$expectedResponse" \
       || fail "repl command set:
 
-$1
+$commands
 
 does not respond with:
 
-$2
+$expectedResponse
 
 but with:
 
@@ -76,3 +78,48 @@ testReplResponse '
 :a { a = "2"; }
 "result: ${a}"
 ' "result: 2"
+
+testReplResponse '
+drvPath
+' '".*-simple.drv"' \
+$testDir/simple.nix
+
+testReplResponse '
+drvPath
+' '".*-simple.drv"' \
+--file $testDir/simple.nix --experimental-features 'ca-derivations'
+
+testReplResponse '
+drvPath
+' '".*-simple.drv"' \
+--file $testDir/simple.nix --extra-experimental-features 'repl-flake ca-derivations'
+
+mkdir -p flake && cat <<EOF > flake/flake.nix
+{
+    outputs = { self }: {
+        foo = 1;
+        bar.baz = 2;
+
+        changingThing = "beforeChange";
+    };
+}
+EOF
+testReplResponse '
+foo + baz
+' "3" \
+    ./flake ./flake\#bar --experimental-features 'flakes repl-flake'
+
+# Test the `:reload` mechansim with flakes:
+# - Eval `./flake#changingThing`
+# - Modify the flake
+# - Re-eval it
+# - Check that the result has changed
+replResult=$( (
+echo "changingThing"
+sleep 1 # Leave the repl the time to eval 'foo'
+sed -i 's/beforeChange/afterChange/' flake/flake.nix
+echo ":reload"
+echo "changingThing"
+) | nix repl ./flake --experimental-features 'flakes repl-flake')
+echo "$replResult" | grep -qs beforeChange
+echo "$replResult" | grep -qs afterChange