| 1 | ## compare_shells: dash bash mksh ash
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| 2 | ## oils_failures_allowed: 0
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| 3 |
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| 4 | # TODO: upgrade to bash 5.2 and make OSH behave like that! redirect failures
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| 5 |
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| 6 | #### errexit aborts early
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| 7 | set -o errexit
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| 8 | false
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| 9 | echo done
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| 10 | ## stdout-json: ""
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| 11 | ## status: 1
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| 12 |
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| 13 | #### errexit for nonexistent command
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| 14 | set -o errexit
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| 15 | nonexistent__ZZ
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| 16 | echo done
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| 17 | ## stdout-json: ""
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| 18 | ## status: 127
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| 19 |
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| 20 | #### errexit aborts early on pipeline
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| 21 | set -o errexit
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| 22 | echo hi | grep nonexistent
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| 23 | echo two
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| 24 | ## stdout-json: ""
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| 25 | ## status: 1
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| 26 |
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| 27 | #### errexit with { }
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| 28 | # This aborts because it's not part of an if statement.
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| 29 | set -o errexit
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| 30 | { echo one; false; echo two; }
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| 31 | ## stdout: one
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| 32 | ## status: 1
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| 33 |
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| 34 | #### errexit with if and { }
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| 35 | set -o errexit
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| 36 | if { echo one; false; echo two; }; then
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| 37 | echo three
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| 38 | fi
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| 39 | echo four
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| 40 | ## status: 0
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| 41 | ## STDOUT:
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| 42 | one
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| 43 | two
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| 44 | three
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| 45 | four
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| 46 | ## END
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| 47 |
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| 48 | #### errexit with ||
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| 49 | set -o errexit
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| 50 | echo hi | grep nonexistent || echo ok
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| 51 | ## stdout: ok
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| 52 | ## status: 0
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| 53 |
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| 54 | #### errexit with &&
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| 55 | set -o errexit
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| 56 | echo ok && echo hi | grep nonexistent
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| 57 | ## stdout: ok
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| 58 | ## status: 1
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| 59 |
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| 60 | #### errexit test && -- from gen-module-init
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| 61 | set -o errexit
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| 62 | test "$mod" = readline && echo "#endif"
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| 63 | echo status=$?
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| 64 | ## stdout: status=1
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| 65 |
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| 66 | #### errexit test && and fail
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| 67 | set -o errexit
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| 68 | test -n X && false
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| 69 | echo status=$?
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| 70 | ## stdout-json: ""
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| 71 | ## status: 1
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| 72 |
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| 73 | #### More && ||
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| 74 |
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| 75 | $SH -c 'set -e; false || { echo group; false; }; echo bad'
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| 76 | echo status=$?
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| 77 | echo
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| 78 |
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| 79 | $SH -c 'set -e; false || ( echo subshell; exit 42 ); echo bad'
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| 80 | echo status=$?
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| 81 | echo
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| 82 |
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| 83 | # noforklast optimization
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| 84 | $SH -c 'set -e; false || /bin/false; echo bad'
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| 85 | echo status=$?
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| 86 |
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| 87 | ## STDOUT:
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| 88 | group
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| 89 | status=1
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| 90 |
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| 91 | subshell
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| 92 | status=42
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| 93 |
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| 94 | status=1
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| 95 | ## END
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| 96 |
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| 97 | #### errexit and loop
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| 98 | set -o errexit
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| 99 | for x in 1 2 3; do
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| 100 | test $x = 2 && echo "hi $x"
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| 101 | done
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| 102 | ## stdout: hi 2
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| 103 | ## status: 1
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| 104 |
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| 105 | #### errexit and brace group { }
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| 106 | set -o errexit
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| 107 | { test no = yes && echo hi; }
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| 108 | echo status=$?
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| 109 | ## stdout: status=1
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| 110 |
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| 111 | #### errexit and time { }
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| 112 | set -o errexit
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| 113 | time false
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| 114 | echo status=$?
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| 115 | ## status: 1
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| 116 |
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| 117 | #### errexit with !
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| 118 | set -o errexit
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| 119 | echo one
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| 120 | ! true
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| 121 | echo two
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| 122 | ! false
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| 123 | echo three
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| 124 | ## STDOUT:
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| 125 | one
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| 126 | two
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| 127 | three
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| 128 | ## END
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| 129 |
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| 130 | #### errexit with ! and ;
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| 131 | # AST has extra Sentence nodes; there was a REGRESSION here.
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| 132 | set -o errexit; echo one; ! true; echo two; ! false; echo three
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| 133 | ## STDOUT:
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| 134 | one
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| 135 | two
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| 136 | three
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| 137 | ## END
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| 138 |
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| 139 | #### errexit with while/until
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| 140 | set -o errexit
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| 141 | while false; do
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| 142 | echo ok
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| 143 | done
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| 144 | until false; do
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| 145 | echo ok # do this once then exit loop
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| 146 | break
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| 147 | done
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| 148 | ## stdout: ok
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| 149 | ## status: 0
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| 150 |
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| 151 | #### errexit with (( ))
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| 152 | # from http://mywiki.wooledge.org/BashFAQ/105, this changed between versions.
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| 153 | # ash says that 'i++' is not found, but it doesn't exit. I guess this is the
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| 154 | # subshell problem?
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| 155 | set -o errexit
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| 156 | i=0
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| 157 | (( i++ ))
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| 158 | echo done
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| 159 | ## stdout-json: ""
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| 160 | ## status: 1
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| 161 | ## N-I dash/ash status: 127
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| 162 | ## N-I dash/ash stdout-json: ""
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| 163 |
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| 164 | #### errexit with subshell
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| 165 | set -o errexit
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| 166 | ( echo one; false; echo two; )
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| 167 | echo three
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| 168 | ## status: 1
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| 169 | ## STDOUT:
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| 170 | one
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| 171 | ## END
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| 172 |
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| 173 | #### set -o errexit while it's being ignored (moot with strict_errexit)
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| 174 | set -o errexit
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| 175 | # osh aborts early here
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| 176 | if { echo 1; false; echo 2; set -o errexit; echo 3; false; echo 4; }; then
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| 177 | echo 5;
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| 178 | fi
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| 179 | echo 6
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| 180 | false # this is the one that makes shells fail
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| 181 | echo 7
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| 182 | ## status: 1
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| 183 | ## STDOUT:
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| 184 | 1
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| 185 | 2
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| 186 | 3
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| 187 | 4
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| 188 | 5
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| 189 | 6
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| 190 | ## END
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| 191 |
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| 192 | #### set +o errexit while it's being ignored (moot with strict_errexit)
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| 193 | set -o errexit
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| 194 | if { echo 1; false; echo 2; set +o errexit; echo 3; false; echo 4; }; then
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| 195 | echo 5;
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| 196 | fi
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| 197 | echo 6
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| 198 | false # does NOT fail, because we restored it.
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| 199 | echo 7
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| 200 | ## STDOUT:
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| 201 | 1
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| 202 | 2
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| 203 | 3
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| 204 | 4
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| 205 | 5
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| 206 | 6
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| 207 | 7
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| 208 | ## END
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| 209 |
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| 210 | #### set +o errexit with 2 levels of ignored
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| 211 | set -o errexit
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| 212 | if { echo 1; ! set +o errexit; echo 2; }; then
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| 213 | echo 3
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| 214 | fi
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| 215 | echo 6
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| 216 | false
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| 217 | echo 7
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| 218 |
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| 219 | ## STDOUT:
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| 220 | 1
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| 221 | 2
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| 222 | 3
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| 223 | 6
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| 224 | 7
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| 225 | ## END
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| 226 |
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| 227 | #### setting errexit in a subshell works but doesn't affect parent shell
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| 228 | ( echo 1; false; echo 2; set -o errexit; echo 3; false; echo 4; )
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| 229 | echo 5
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| 230 | false
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| 231 | echo 6
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| 232 | ## STDOUT:
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| 233 | 1
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| 234 | 2
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| 235 | 3
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| 236 | 5
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| 237 | 6
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| 238 | ## END
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| 239 |
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| 240 | #### set errexit while it's ignored in a subshell (moot with strict_errexit)
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| 241 | set -o errexit
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| 242 | if ( echo 1; false; echo 2; set -o errexit; echo 3; false; echo 4 ); then
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| 243 | echo 5;
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| 244 | fi
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| 245 | echo 6 # This is executed because the subshell just returns false
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| 246 | false
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| 247 | echo 7
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| 248 | ## status: 1
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| 249 | ## STDOUT:
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| 250 | 1
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| 251 | 2
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| 252 | 3
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| 253 | 4
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| 254 | 5
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| 255 | 6
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| 256 | ## END
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| 257 |
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| 258 | #### shopt -s strict:all || true while errexit is on
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| 259 | set -o errexit
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| 260 | shopt -s strict:all || true
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| 261 | echo one
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| 262 | false # fail
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| 263 | echo two
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| 264 | ## status: 1
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| 265 | ## STDOUT:
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| 266 | one
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| 267 | ## END
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| 268 |
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| 269 | #### errexit double guard
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| 270 | # OSH bug fix. ErrExit needs a counter, not a boolean.
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| 271 | set -o errexit
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| 272 | if { ! false; false; true; } then
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| 273 | echo true
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| 274 | fi
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| 275 | false
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| 276 | echo done
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| 277 | ## status: 1
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| 278 | ## STDOUT:
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| 279 | true
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| 280 | ## END
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| 281 |
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| 282 | #### background processes respect errexit
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| 283 | set -o errexit
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| 284 | { echo one; false; echo two; exit 42; } &
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| 285 | wait $!
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| 286 | ## status: 1
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| 287 | ## STDOUT:
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| 288 | one
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| 289 | ## END
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| 290 |
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| 291 | #### pipeline process respects errexit
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| 292 | set -o errexit
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| 293 | # It is respected here.
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| 294 | { echo one; false; echo two; } | cat
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| 295 |
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| 296 | # Also respected here.
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| 297 | { echo three; echo four; } | while read line; do
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| 298 | echo "[$line]"
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| 299 | false
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| 300 | done
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| 301 | echo four
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| 302 | ## status: 1
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| 303 | ## STDOUT:
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| 304 | one
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| 305 | [three]
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| 306 | ## END
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| 307 |
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| 308 | #### simple command / assign - redir failure DOES respect errexit
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| 309 |
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| 310 | $SH -c '
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| 311 | set -o errexit
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| 312 | true > /
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| 313 | echo builtin status=$?
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| 314 | '
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| 315 | echo status=$?
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| 316 |
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| 317 | $SH -c '
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| 318 | set -o errexit
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| 319 | /bin/true > /
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| 320 | echo extern status=$?
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| 321 | '
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| 322 | echo status=$?
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| 323 |
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| 324 | $SH -c '
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| 325 | set -o errexit
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| 326 | assign=foo > /
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| 327 | echo assign status=$?
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| 328 | '
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| 329 | echo status=$?
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| 330 |
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| 331 | ## STDOUT:
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| 332 | status=1
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| 333 | status=1
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| 334 | status=1
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| 335 | ## END
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| 336 | ## OK dash STDOUT:
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| 337 | status=2
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| 338 | status=2
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| 339 | status=2
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| 340 | ## END
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| 341 |
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| 342 | #### simple command that's an alias - redir failure checked
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| 343 |
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| 344 | # bash 5.2 fixed bash 4.4 bug: this is now checked
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| 345 |
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| 346 | $SH -c '
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| 347 | shopt -s expand_aliases
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| 348 |
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| 349 | set -o errexit
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| 350 | alias zz="{ echo 1; echo 2; }"
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| 351 | zz > /
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| 352 | echo alias status=$?
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| 353 | '
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| 354 | echo status=$?
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| 355 |
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| 356 | ## STDOUT:
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| 357 | status=1
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| 358 | ## END
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| 359 |
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| 360 | ## BUG dash STDOUT:
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| 361 | alias status=2
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| 362 | status=0
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| 363 | ## END
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| 364 |
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| 365 | ## BUG ash STDOUT:
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| 366 | alias status=1
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| 367 | status=0
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| 368 | ## END
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| 369 |
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| 370 | #### bash atoms [[ (( - redir failure checked
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| 371 |
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| 372 | # bash 5.2 fixed bash 4.4 bug: this is now checked
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| 373 |
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| 374 | case $SH in dash) exit ;; esac
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| 375 |
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| 376 | $SH -c '
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| 377 | set -o errexit
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| 378 | [[ x = x ]] > /
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| 379 | echo dbracket status=$?
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| 380 | '
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| 381 | echo status=$?
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| 382 |
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| 383 | $SH -c '
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| 384 | set -o errexit
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| 385 | (( 42 )) > /
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| 386 | echo dparen status=$?
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| 387 | '
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| 388 | echo status=$?
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| 389 |
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| 390 | ## STDOUT:
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| 391 | status=1
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| 392 | status=1
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| 393 | ## END
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| 394 |
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| 395 | ## OK ash STDOUT:
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| 396 | status=1
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| 397 | status=2
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| 398 | ## END
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| 399 |
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| 400 | ## N-I dash STDOUT:
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| 401 | ## END
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| 402 |
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| 403 |
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| 404 | #### brace group - redir failure checked
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| 405 |
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| 406 | # bash 5.2 fixed bash 4.4 bug: this is now checked
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| 407 |
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| 408 | # case from
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| 409 | # https://lists.gnu.org/archive/html/bug-bash/2020-05/msg00066.html
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| 410 |
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| 411 | set -o errexit
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| 412 |
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| 413 | { cat ; } < not_exist.txt
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| 414 |
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| 415 | echo status=$?
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| 416 | echo 'should not get here'
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| 417 |
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| 418 | ## status: 1
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| 419 | ## STDOUT:
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| 420 | ## END
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| 421 |
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| 422 | ## BUG dash status: 0
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| 423 | ## BUG dash STDOUT:
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| 424 | status=2
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| 425 | should not get here
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| 426 | ## END
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| 427 |
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| 428 | ## BUG ash status: 0
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| 429 | ## BUG ash STDOUT:
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| 430 | status=1
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| 431 | should not get here
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| 432 | ## END
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| 433 |
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| 434 |
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| 435 | #### while loop - redirect failure checked
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| 436 |
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| 437 | # bash 5.2 fixed bash 4.4 bug: this is now checked
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| 438 |
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| 439 | # case from
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| 440 | # https://lists.gnu.org/archive/html/bug-bash/2020-05/msg00066.html
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| 441 |
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| 442 | set -o errexit
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| 443 |
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| 444 | while read line; do
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| 445 | echo $line
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| 446 | done < not_exist.txt
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| 447 |
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| 448 | echo status=$?
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| 449 | echo 'should not get here'
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| 450 |
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| 451 | ## status: 1
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| 452 | ## STDOUT:
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| 453 | ## END
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| 454 |
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| 455 | ## BUG dash status: 0
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| 456 | ## BUG dash STDOUT:
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| 457 | status=2
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| 458 | should not get here
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| 459 | ## END
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| 460 |
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| 461 | ## BUG ash status: 0
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| 462 | ## BUG ash STDOUT:
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| 463 | status=1
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| 464 | should not get here
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| 465 | ## END
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| 466 |
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| 467 |
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| 468 | #### set -e enabled in function (regression)
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| 469 | foo() {
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| 470 | set -e
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| 471 | false
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| 472 | echo "should be executed"
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| 473 | }
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| 474 | #foo && true
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| 475 | #foo || true
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| 476 |
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| 477 | if foo; then
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| 478 | true
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| 479 | fi
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| 480 |
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| 481 | echo "should be executed"
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| 482 | ## STDOUT:
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| 483 | should be executed
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| 484 | should be executed
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| 485 | ## END
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| 486 |
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| 487 | #### set -e in function #2
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| 488 | foo() {
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| 489 | set -e
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| 490 | false
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| 491 | echo "should be executed"
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| 492 | }
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| 493 | ! foo
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| 494 |
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| 495 | echo "should be executed"
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| 496 | ## BUG bash stdout-json: ""
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| 497 | ## BUG bash status: 1
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| 498 | ## STDOUT:
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| 499 | should be executed
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| 500 | should be executed
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| 501 | ## END
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| 502 |
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| 503 |
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| 504 | #### Command sub exit code is lost
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| 505 | echo ft $(false) $(true)
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| 506 | echo status=$?
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| 507 |
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| 508 | set -o errexit
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| 509 | shopt -s inherit_errexit || true
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| 510 |
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| 511 | # This changes it
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| 512 | #shopt -s command_sub_errexit || true
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| 513 |
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| 514 | echo f $(date %x)
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| 515 | echo status=$?
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| 516 |
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| 517 | # compare with
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| 518 | # x=$(date %x) # FAILS
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| 519 | # local x=$(date %x) # does NOT fail
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| 520 |
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| 521 | echo ft $(false) $(true)
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| 522 | echo status=$?
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| 523 |
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| 524 | ## STDOUT:
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| 525 | ft
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| 526 | status=0
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| 527 | f
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| 528 | status=0
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| 529 | ft
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| 530 | status=0
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| 531 | ## END
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| 532 |
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