Files
ECC/tests
042924e1f4 fix(install): support invocation through POSIX sh (#3014)
* fix(install): make install.sh robust to sh/dash invocation

Two related portability fixes so `sh install.sh` behaves correctly
even though the script is written for bash:

- The cygpath detection used the bash-only `&>/dev/null` redirection.
  dash misparses `&>`, so `command -v cygpath &>/dev/null` always took
  the true branch and tried to run the nonexistent `cygpath` binary,
  failing with "cygpath: not found". Switched to the POSIX-portable
  `>/dev/null 2>&1` form.

- Some dash builds don't support `set -o pipefail`, so `sh install.sh`
  can fail immediately at that line before even reaching the cygpath
  check (or the `[[ ... ]]` symlink-resolution logic further down).
  Added a guard that re-execs the script under bash when the current
  shell lacks bash capabilities, so the rest of the bash-only syntax
  always runs under a real bash regardless of the invoking shell. The
  guard probes for the `[[` compound command directly (via
  `eval '[[ 1 == 1 ]]'`) rather than trusting the $BASH_VERSION
  environment variable, since that variable could be inherited or
  spoofed under a non-bash shell and cause the guard to be skipped.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019XBaBRjaZgwhrZtYoqcQfp

* test(install): cover the sh install.sh re-exec path

Greptile flagged that the bash re-exec guard added in install.sh has
no automated coverage, since the existing test helper only invoked
the wrapper via `bash`. Adds two regression tests:

- "delegates to the Node installer when invoked via a POSIX sh
  wrapper" — runs the script via `sh` and asserts the args/cwd still
  reach the Node installer correctly.
- "re-execs into bash under sh even when BASH_VERSION is spoofed in
  the environment" — exercises the eval '[[ 1 == 1 ]]' capability
  probe directly, guarding against a regression back to trusting the
  (spoofable) $BASH_VERSION variable.

CodeRabbit then pointed out that the second test used generic `sh`,
which could trivially pass without exercising the re-exec branch at
all if `sh` ever resolves to bash on some system. Added a
findPosixOnlyShell() helper that prefers `dash` (falling back to
checking `sh`, and skipping with an explicit message if neither
genuinely lacks bash's `[[`), so the test reliably exercises the
branch it claims to cover instead of passing vacuously.

CodeRabbit then flagged that the skip path itself was miscounted as
a pass (the callback returned normally, so `test()` reported success
and `passed` was incremented even though nothing executed). Moved
the findPosixOnlyShell() check outside the test() registration, so
the test is only registered — and only counted — when a genuinely
POSIX-only shell is actually available; otherwise it's excluded from
both the passed and failed counts with an explicit skip line.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019XBaBRjaZgwhrZtYoqcQfp

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-27 19:04:10 -05:00
..
2026-04-12 12:34:45 +05:30