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Merged
evantypanski merged 1 commit into from
Aug 18, 2026
Merged

Error for -u without a TTY #144

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3 changes: 3 additions & 0 deletions btest
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Original file line number Diff line number Diff line change
Expand Up @@ -3041,6 +3041,9 @@ def parse_options():
warning("ignoring requested parallelism in interactive-update mode")
options.threads = 1

if options.mode == "UPDATE_INTERACTIVE" and not sys.stdout.isatty():
error("interactive-update mode must have a TTY")

return options, parsed_args


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2 changes: 2 additions & 0 deletions testing/Baseline/tests.update-interactive-requires-tty/output
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@@ -0,0 +1,2 @@
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
interactive-update mode must have a TTY
8 changes: 8 additions & 0 deletions testing/tests/update-interactive-requires-tty.test
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@@ -0,0 +1,8 @@
# %TEST-DOC: --update-interactive errors out early when stdout is not a TTY.
#
# Running btest inside btest redirects the inner stdout, so it is not a
# TTY and the guard must fire before any test would prompt for input.
# %TEST-EXEC-FAIL: btest -u . >output 2>&1
# %TEST-EXEC: btest-diff output

@TEST-EXEC: exit 1
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