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maintenance(shell): guard against unwritable inherited TMPDIR in headless contexts #51

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Merged
abarrows merged 1 commit into from
Jul 1, 2026
Merged

maintenance(shell): guard against unwritable inherited TMPDIR in headless contexts #51

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12 changes: 12 additions & 0 deletions shell/.zprofile
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,18 @@
if [ -r "/opt/homebrew/bin/brew" ]; then
eval $(/opt/homebrew/bin/brew shellenv)
fi

# Ensure a writable temp dir. Headless / launchd-launched contexts inherit the
# root-owned macOS fallback (TMPDIR=/var/folders/zz/.../T, mode 0700), which is
# unwritable by the user and breaks vitest/npm/esbuild with EACCES. Only override
# when TMPDIR is unset or not writable, so interactive machines keep system temp.
if [ -z "$TMPDIR" ] || [ ! -w "${TMPDIR%/}" ]; then
export TMPDIR="$HOME/.claude/tmp"
export TMP="$TMPDIR"
export TEMP="$TMPDIR"
mkdir -p "$TMPDIR"
fi

if [[ $- == *i* ]] && [ -t 0 ]; then
echo "This is an interactive shell"
else
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