authorgravatar for mwolson@member.fsf.orgMike Olson <mwolson@member.fsf.org> 2026-09-30 13:27:47-04:00
committergravatar for noreply@github.comGitHub <noreply@github.com> 2026-09-30 10:27:47-07:00
log38969148a23e7a422045be023627c7fbbddf7503
tree5cd029c7ad21c3da2f2a75eb641307033d5162cd
parentc2fa9fc911daeac97df4760f95fc57dca42b84c8
signature Signed by PGP key B5690EEEBB952194

test(desktop): Keep WSL busy-runtime fixtures visible when sh is bash (#14351)

1 files changed, 25 insertions(+), 17 deletions(-)

apps/desktop/src/wsl/DesktopWslEnvironment.test.ts+25-17
......@@ -69,6 +69,28 @@ const runShell = (script: string) => {
6969
7070const sh = (value: string) => `'${value.replaceAll("'", "'\\''")}'`;
7171
72// Polls for up to five seconds until a background holder has taken effect.
73const awaitHolder = (condition: string) =>
74 `i=0; until ${condition}; do i=$((i + 1)); [ "$i" -lt 500 ] || exit 1; sleep 0.01; done`;
75
76// Holds a cache busy the way a running server does: the holder's argv[0] is the
77// runtime entry, which the prune and install scripts look for in /proc cmdline.
78// It reads a pipe the script keeps open on fd 7, so it exits with the script
79// instead of outliving it on a timer.
80const holdRuntimeBusy = (entry: string) =>
81 [
82 `exec 7> >(exec -a ${entry} cat >/dev/null 2>&1)`,
83 awaitHolder(`grep -qF -- ${entry} /proc/[0-9]*/cmdline 2>/dev/null`),
84 ].join("\n");
85
86// Holds a cache's install lock the way a concurrent install does, and likewise
87// releases it when the script exits.
88const holdInstallLock = (lock: string) =>
89 [
90 `exec 6> >(exec 9> ${lock}; flock -x 9; cat >/dev/null 2>&1)`,
91 awaitHolder(`! flock -n ${lock} true`),
92 ].join("\n");
93
7294const readField = (stdout: string, field: string) => {
7395 const line = stdout.split("\n").find((candidate) => candidate.startsWith(`${field}:`));
7496 if (line === undefined) throw new Error(`missing ${field} in fixture output: ${stdout}`);
......@@ -712,9 +734,7 @@ describe.skipIf(posixShellRunner === null)("WSL runtime install script (executed
712734 `runtime_root=${sh(fixture.runtimeRoot)}`,
713735 `runtime_parent=${sh(fixture.runtimeParent)}`,
714736 'rm "$runtime_root/.t3code-wsl-runtime-ready"',
715 'sh -c "sleep 30" "$runtime_root/t3" >/dev/null 2>&1 &',
716 "active_pid=$!",
717 "sleep 0.1",
737 holdRuntimeBusy('"$runtime_root/t3"'),
718738 fixture.installScript(),
719739 'stale=$(find "$runtime_parent" -maxdepth 1 -type d -name ".sha256-*.stale.*" -print -quit)',
720740 'test -n "$stale"',
......@@ -723,8 +743,6 @@ describe.skipIf(posixShellRunner === null)("WSL runtime install script (executed
723743 "export HOME",
724744 buildWslRuntimePruneScript(fixture.runtimeId),
725745 'test ! -e "$stale"',
726 "kill $active_pid",
727 "wait $active_pid 2>/dev/null || true",
728746 ].join("\n"),
729747 );
730748
......@@ -750,15 +768,8 @@ describe.skipIf(posixShellRunner === null)("WSL runtime install script (executed
750768 'touch -d "4 minutes ago" "$runtime_parent/sha256-active"',
751769 'touch -d "3 minutes ago" "$runtime_parent/sha256-old"',
752770 'touch -d "2 minutes ago" "$runtime_parent/sha256-locked"',
753 'sh -c "sleep 30" "$runtime_parent/sha256-active/t3" >/dev/null 2>&1 &',
754 "active_pid=$!",
755 "(",
756 ' exec 9> "$runtime_parent/.sha256-locked.install.lock"',
757 " flock -x 9",
758 " sleep 30",
759 ") >/dev/null 2>&1 &",
760 "lock_pid=$!",
761 "sleep 0.1",
771 holdRuntimeBusy('"$runtime_parent/sha256-active/t3"'),
772 holdInstallLock('"$runtime_parent/.sha256-locked.install.lock"'),
762773 `HOME="$home"`,
763774 "export HOME",
764775 buildWslRuntimePruneScript("sha256-current"),
......@@ -769,9 +780,6 @@ describe.skipIf(posixShellRunner === null)("WSL runtime install script (executed
769780 'test -d "$runtime_parent/versions"',
770781 'test ! -e "$runtime_parent/sha256-old"',
771782 'test ! -e "$runtime_parent/sha256-markerless"',
772 "kill $active_pid $lock_pid",
773 "wait $active_pid 2>/dev/null || true",
774 "wait $lock_pid 2>/dev/null || true",
775783 'rm -rf "$work"',
776784 ].join("\n"),
777785 );