| 1 | ## oils_failures_allowed: 0
|
| 2 | ## compare_shells: bash dash mksh zsh
|
| 3 |
|
| 4 | #
|
| 5 | # Tests for pipelines.
|
| 6 | # NOTE: Grammatically, ! is part of the pipeline:
|
| 7 | #
|
| 8 | # pipeline : pipe_sequence
|
| 9 | # | Bang pipe_sequence
|
| 10 |
|
| 11 | #### Brace group in pipeline
|
| 12 | { echo one; echo two; } | tac
|
| 13 | ## stdout-json: "two\none\n"
|
| 14 |
|
| 15 | #### For loop starts pipeline
|
| 16 | for w in one two; do
|
| 17 | echo $w
|
| 18 | done | tac
|
| 19 | ## stdout-json: "two\none\n"
|
| 20 |
|
| 21 | #### While Loop ends pipeline
|
| 22 | seq 3 | while read i
|
| 23 | do
|
| 24 | echo ".$i"
|
| 25 | done
|
| 26 | ## stdout-json: ".1\n.2\n.3\n"
|
| 27 |
|
| 28 | #### Redirect in Pipeline
|
| 29 | echo hi 1>&2 | wc -l
|
| 30 | ## stdout: 0
|
| 31 | ## BUG zsh stdout: 1
|
| 32 |
|
| 33 | #### Pipeline comments
|
| 34 | echo abcd | # input
|
| 35 | # blank line
|
| 36 | tr a-z A-Z # transform
|
| 37 | ## stdout: ABCD
|
| 38 |
|
| 39 | #### Exit code is last status
|
| 40 | echo a | egrep '[0-9]+'
|
| 41 | ## status: 1
|
| 42 |
|
| 43 | #### PIPESTATUS
|
| 44 | return3() {
|
| 45 | return 3
|
| 46 | }
|
| 47 | { sleep 0.03; exit 1; } | { sleep 0.02; exit 2; } | { sleep 0.01; return3; }
|
| 48 | echo ${PIPESTATUS[@]}
|
| 49 | ## stdout: 1 2 3
|
| 50 | ## N-I dash status: 2
|
| 51 | ## N-I dash stdout-json: ""
|
| 52 | ## N-I zsh status: 0
|
| 53 | ## N-I zsh stdout-json: "\n"
|
| 54 |
|
| 55 | #### PIPESTATUS is set on simple commands, but NOT in OSH
|
| 56 | case $SH in dash|zsh) exit ;; esac
|
| 57 |
|
| 58 | false
|
| 59 | echo pipestatus ${PIPESTATUS[@]}
|
| 60 |
|
| 61 | ## STDOUT:
|
| 62 | pipestatus 1
|
| 63 | ## END
|
| 64 | ## OK osh STDOUT:
|
| 65 | pipestatus
|
| 66 | ## END
|
| 67 | ## N-I dash/zsh STDOUT:
|
| 68 | ## END
|
| 69 |
|
| 70 | #### PIPESTATUS with shopt -s lastpipe
|
| 71 | shopt -s lastpipe
|
| 72 | return3() {
|
| 73 | return 3
|
| 74 | }
|
| 75 | { sleep 0.03; exit 1; } | { sleep 0.02; exit 2; } | { sleep 0.01; return3; }
|
| 76 | echo ${PIPESTATUS[@]}
|
| 77 | ## stdout: 1 2 3
|
| 78 | ## N-I dash status: 2
|
| 79 | ## N-I dash stdout-json: ""
|
| 80 | ## N-I zsh status: 0
|
| 81 | ## N-I zsh stdout-json: "\n"
|
| 82 |
|
| 83 | #### |&
|
| 84 | stdout_stderr.py |& cat
|
| 85 | ## STDOUT:
|
| 86 | STDERR
|
| 87 | STDOUT
|
| 88 | ## END
|
| 89 | ## status: 0
|
| 90 | ## N-I dash/mksh stdout-json: ""
|
| 91 | ## N-I dash status: 2
|
| 92 | ## N-I osh stdout-json: ""
|
| 93 | ## N-I osh status: 1
|
| 94 |
|
| 95 | #### ! turns non-zero into zero
|
| 96 | ! $SH -c 'exit 42'; echo $?
|
| 97 | ## stdout: 0
|
| 98 | ## status: 0
|
| 99 |
|
| 100 | #### ! turns zero into 1
|
| 101 | ! $SH -c 'exit 0'; echo $?
|
| 102 | ## stdout: 1
|
| 103 | ## status: 0
|
| 104 |
|
| 105 | #### ! in if
|
| 106 | if ! echo hi; then
|
| 107 | echo TRUE
|
| 108 | else
|
| 109 | echo FALSE
|
| 110 | fi
|
| 111 | ## stdout-json: "hi\nFALSE\n"
|
| 112 | ## status: 0
|
| 113 |
|
| 114 | #### ! with ||
|
| 115 | ! echo hi || echo FAILED
|
| 116 | ## stdout-json: "hi\nFAILED\n"
|
| 117 | ## status: 0
|
| 118 |
|
| 119 | #### ! with { }
|
| 120 | ! { echo 1; echo 2; } || echo FAILED
|
| 121 | ## stdout-json: "1\n2\nFAILED\n"
|
| 122 | ## status: 0
|
| 123 |
|
| 124 | #### ! with ( )
|
| 125 | ! ( echo 1; echo 2 ) || echo FAILED
|
| 126 | ## stdout-json: "1\n2\nFAILED\n"
|
| 127 | ## status: 0
|
| 128 |
|
| 129 | #### ! is not a command
|
| 130 | v='!'
|
| 131 | $v echo hi
|
| 132 | ## status: 127
|
| 133 |
|
| 134 | #### Evaluation of argv[0] in pipeline occurs in child
|
| 135 | ${cmd=echo} hi | wc -l
|
| 136 | echo "cmd=$cmd"
|
| 137 | ## STDOUT:
|
| 138 | 1
|
| 139 | cmd=
|
| 140 | ## END
|
| 141 | ## BUG zsh STDOUT:
|
| 142 | 1
|
| 143 | cmd=echo
|
| 144 | ## END
|
| 145 |
|
| 146 | #### bash/dash/mksh run the last command is run in its own process
|
| 147 | echo hi | read line
|
| 148 | echo "line=$line"
|
| 149 | ## stdout: line=hi
|
| 150 | ## OK bash/dash/mksh stdout: line=
|
| 151 |
|
| 152 | #### shopt -s lastpipe (always on in OSH)
|
| 153 | shopt -s lastpipe
|
| 154 | echo hi | read line
|
| 155 | echo "line=$line"
|
| 156 | ## stdout: line=hi
|
| 157 | ## N-I dash/mksh stdout: line=
|
| 158 |
|
| 159 | #### shopt -s lastpipe (always on in OSH)
|
| 160 | shopt -s lastpipe
|
| 161 | i=0
|
| 162 | seq 3 | while read line; do
|
| 163 | (( i++ ))
|
| 164 | done
|
| 165 | echo i=$i
|
| 166 | ## stdout: i=3
|
| 167 | ## N-I dash/mksh stdout: i=0
|
| 168 |
|
| 169 |
|
| 170 | #### SIGPIPE causes pipeline to die (regression for issue #295)
|
| 171 | cat /dev/urandom | sleep 0.1
|
| 172 | echo ${PIPESTATUS[@]}
|
| 173 |
|
| 174 | # hm bash gives '1 0' which seems wrong
|
| 175 |
|
| 176 | ## STDOUT:
|
| 177 | 141 0
|
| 178 | ## END
|
| 179 | ## BUG bash STDOUT:
|
| 180 | 1 0
|
| 181 | ## END
|
| 182 | ## N-I zsh stdout:
|
| 183 | ## N-I dash status: 2
|
| 184 | ## N-I dash stdout-json: ""
|
| 185 |
|
| 186 | #### Nested pipelines
|
| 187 | { sleep 0.1 | seq 3; } | cat
|
| 188 | { sleep 0.1 | seq 10; } | { cat | cat; } | wc -l
|
| 189 | ## STDOUT:
|
| 190 | 1
|
| 191 | 2
|
| 192 | 3
|
| 193 | 10
|
| 194 | ## END
|
| 195 |
|
| 196 | #### Pipeline in eval
|
| 197 | ls /dev/null | eval 'cat | cat' | wc -l
|
| 198 | ## STDOUT:
|
| 199 | 1
|
| 200 | ## END
|
| 201 |
|
| 202 |
|
| 203 | #### shopt -s lastpipe and shopt -s no_last_fork interaction
|
| 204 |
|
| 205 | case $SH in dash) exit ;; esac
|
| 206 |
|
| 207 | $SH -c '
|
| 208 | shopt -s lastpipe
|
| 209 | set -o errexit
|
| 210 | set -o pipefail
|
| 211 |
|
| 212 | ls | false | wc -l'
|
| 213 | echo status=$?
|
| 214 |
|
| 215 | # Why does this give status 0? It should fail
|
| 216 |
|
| 217 | $SH -c '
|
| 218 | shopt -s lastpipe
|
| 219 | shopt -s no_fork_last # OSH only
|
| 220 | set -o errexit
|
| 221 | set -o pipefail
|
| 222 |
|
| 223 | ls | false | wc -l'
|
| 224 | echo status=$?
|
| 225 |
|
| 226 | ## STDOUT:
|
| 227 | 0
|
| 228 | status=1
|
| 229 | 0
|
| 230 | status=1
|
| 231 | ## END
|
| 232 |
|
| 233 | ## N-I dash STDOUT:
|
| 234 | ## END
|