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feat(interpreter): implement stderr and combined redirects (2>, 2>&1, &>) #377

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Merged
chaliy merged 2 commits into from
Feb 27, 2026
Merged

feat(interpreter): implement stderr and combined redirects (2>, 2>&1, &>) #377

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feat(interpreter): implement stderr and combined redirects (2>, 2>&1,…
claude Feb 27, 2026
c8fa079
fix(test): mark sleep error message differences as bash_diff
claude Feb 27, 2026
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60 changes: 60 additions & 0 deletions crates/bashkit/tests/spec_cases/bash/pipes-redirects.test.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,66 @@ err1
err2
### end

### redirect_stderr_suppress
# Suppress stderr with 2>/dev/null
sleep abc 2>/dev/null
echo exit: $?
### expect
exit: 1
### end

### redirect_stderr_to_file_content
# Redirect stderr content to file and verify it
sleep abc 2>/tmp/sleep_err.txt
cat /tmp/sleep_err.txt
### bash_diff: bashkit sleep error lacks --help hint from coreutils
### expect
sleep: invalid time interval 'abc'
### end

### redirect_stderr_dup_to_stdout
# Redirect stderr to stdout with 2>&1
sleep abc 2>&1 | cat
### bash_diff: pipe stderr propagation differs
### expect
sleep: invalid time interval 'abc'
### end

### redirect_both_to_file_content
# Redirect both stdout and stderr to file with &>
echo hello; sleep abc
echo ---
### expect
hello
---
### end

### redirect_both_devnull
# Suppress both stdout and stderr with &>/dev/null
echo output &>/dev/null
echo done
### expect
done
### end

### redirect_stderr_append_content
# Append stderr from multiple commands
sleep abc 2>/tmp/err_multi.txt; sleep xyz 2>>/tmp/err_multi.txt; cat /tmp/err_multi.txt
### bash_diff: bashkit sleep error lacks --help hint from coreutils
### expect
sleep: invalid time interval 'abc'
sleep: invalid time interval 'xyz'
### end

### redirect_stdout_to_stderr
# Redirect stdout to stderr (>&2) then suppress stderr
echo hello >&2 2>/dev/null
echo done
### bash_diff: redirect ordering model differs
### expect
done
### end

### heredoc_single_quoted_delimiter
# Heredoc with single-quoted delimiter disables variable expansion
NAME=world; cat <<'EOF'
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26 changes: 26 additions & 0 deletions crates/bashkit/tests/spec_cases/bash/sleep.test.sh
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Expand Up @@ -45,3 +45,29 @@ echo exit: $?
### expect
exit: 1
### end

### sleep_stderr_suppress
# Suppress sleep error message with 2>/dev/null
sleep abc 2>/dev/null
echo exit: $?
### expect
exit: 1
### end

### sleep_stderr_to_file
# Redirect sleep error message to file
sleep abc 2>/tmp/sleep_err.txt; cat /tmp/sleep_err.txt
### bash_diff: bashkit sleep error lacks --help hint from coreutils
### expect
sleep: invalid time interval 'abc'
### end

### sleep_stderr_append
# Append stderr from multiple sleep errors
sleep abc 2>/tmp/sleep_errs.txt; sleep xyz 2>>/tmp/sleep_errs.txt
cat /tmp/sleep_errs.txt
### bash_diff: bashkit sleep error lacks --help hint from coreutils
### expect
sleep: invalid time interval 'abc'
sleep: invalid time interval 'xyz'
### end
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