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Do not attempt to write a lock file in builtins.getFlake #6544

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Merged
thufschmitt merged 1 commit into from
May 18, 2022
Merged

Do not attempt to write a lock file in builtins.getFlake #6544

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1 change: 1 addition & 0 deletions src/libexpr/flake/flake.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -723,6 +723,7 @@ static void prim_getFlake(EvalState & state, const PosIdx pos, Value * * args, V
lockFlake(state, flakeRef,
LockFlags {
.updateLockFile = false,
.writeLockFile = false,
.useRegistries = !evalSettings.pureEval && fetchSettings.useRegistries,
.allowMutable = !evalSettings.pureEval,
}),
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1 change: 1 addition & 0 deletions tests/flakes.sh
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Expand Up @@ -163,6 +163,7 @@ nix build -o $TEST_ROOT/result --expr "(builtins.getFlake \"git+file://$flake1Di
# But should succeed in impure mode.
(! nix build -o $TEST_ROOT/result flake2#bar --impure)
nix build -o $TEST_ROOT/result flake2#bar --impure --no-write-lock-file
nix eval --expr "builtins.getFlake \"$flake2Dir\"" --impure

# Building a local flake with an unlocked dependency should fail with --no-update-lock-file.
nix build -o $TEST_ROOT/result $flake2Dir#bar --no-update-lock-file 2>&1 | grep 'requires lock file changes'
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