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