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Merge pull request #283406 from tfc/nixos-rebuild-socket

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nixos-rebuild: Handle too-long tmpdir paths on macOS
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Robert Hensing 2024-01-30 19:02:37 +01:00 committed by GitHub
commit 056a4d8d52
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2 changed files with 12 additions and 0 deletions
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5
nixos/tests/nixos-rebuild-target-host.nix
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@ -132,5 +132,10 @@ import ./make-test-python.nix ({ pkgs, ... }: {
deployer.succeed("passh -c 3 -C -p ${nodes.target.users.users.bob.password} -P \"\[sudo\] password\" nixos-rebuild switch -I nixos-config=/root/configuration-3.nix --target-host bob@target --use-remote-sudo &>/dev/console") deployer.succeed("passh -c 3 -C -p ${nodes.target.users.users.bob.password} -P \"\[sudo\] password\" nixos-rebuild switch -I nixos-config=/root/configuration-3.nix --target-host bob@target --use-remote-sudo &>/dev/console")
target_hostname = deployer.succeed("ssh alice@target cat /etc/hostname").rstrip() target_hostname = deployer.succeed("ssh alice@target cat /etc/hostname").rstrip()
assert target_hostname == "config-3-deployed", f"{target_hostname=}" assert target_hostname == "config-3-deployed", f"{target_hostname=}"
with subtest("Deploy works with very long TMPDIR"):
tmp_dir = "/var/folder/veryveryveryveryverylongpathnamethatdoesnotworkwithcontrolpath"
deployer.succeed(f"mkdir -p {tmp_dir}")
deployer.succeed(f"TMPDIR={tmp_dir} nixos-rebuild switch -I nixos-config=/root/configuration-1.nix --target-host root@target &>/dev/console")
''; '';
}) })

7
pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
View file

@ -407,6 +407,13 @@ fi
tmpDir=$(mktemp -t -d nixos-rebuild.XXXXXX) tmpDir=$(mktemp -t -d nixos-rebuild.XXXXXX)
if [[ ${#tmpDir} -ge 60 ]]; then
# Very long tmp dirs lead to "too long for Unix domain socket"
# SSH ControlPath errors. Especially macOS sets long TMPDIR paths.
rmdir "$tmpDir"
tmpDir=$(TMPDIR= mktemp -t -d nixos-rebuild.XXXXXX)
fi
cleanup() { cleanup() {
for ctrl in "$tmpDir"/ssh-*; do for ctrl in "$tmpDir"/ssh-*; do
ssh -o ControlPath="$ctrl" -O exit dummyhost 2>/dev/null || true ssh -o ControlPath="$ctrl" -O exit dummyhost 2>/dev/null || true