| 1 | # xtrace test. Test PS4 and line numbers, etc.
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| 2 |
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| 3 | ## oils_failures_allowed: 1
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| 4 | ## compare_shells: bash dash mksh
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| 5 |
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| 6 | #### unset PS4
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| 7 | case $SH in dash) echo 'weird bug'; exit ;; esac
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| 8 |
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| 9 | set -x
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| 10 | echo 1
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| 11 | unset PS4
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| 12 | echo 2
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| 13 | ## STDOUT:
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| 14 | 1
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| 15 | 2
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| 16 | ## STDERR:
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| 17 | + echo 1
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| 18 | + unset PS4
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| 19 | echo 2
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| 20 | ## END
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| 21 |
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| 22 | ## BUG dash STDOUT:
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| 23 | weird bug
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| 24 | ## END
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| 25 | ## BUG dash STDERR:
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| 26 | ## END
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| 27 |
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| 28 | #### set -o verbose prints unevaluated code
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| 29 | set -o verbose
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| 30 | x=foo
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| 31 | y=bar
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| 32 | echo $x
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| 33 | echo $(echo $y)
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| 34 | ## STDOUT:
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| 35 | foo
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| 36 | bar
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| 37 | ## STDERR:
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| 38 | x=foo
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| 39 | y=bar
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| 40 | echo $x
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| 41 | echo $(echo $y)
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| 42 | ## OK bash STDERR:
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| 43 | x=foo
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| 44 | y=bar
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| 45 | echo $x
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| 46 | echo $(echo $y)
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| 47 | ## END
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| 48 |
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| 49 | #### xtrace with unprintable chars
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| 50 | case $SH in dash) exit ;; esac
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| 51 |
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| 52 | $SH >stdout 2>stderr <<'EOF'
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| 53 |
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| 54 | s=$'a\x03b\004c\x00d'
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| 55 | set -o xtrace
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| 56 | echo "$s"
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| 57 | EOF
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| 58 |
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| 59 | show_hex() { od -A n -t c -t x1; }
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| 60 |
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| 61 | echo STDOUT
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| 62 | cat stdout | show_hex
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| 63 | echo
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| 64 |
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| 65 | echo STDERR
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| 66 | grep 'echo' stderr
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| 67 |
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| 68 | ## STDOUT:
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| 69 | STDOUT
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| 70 | a 003 b 004 c \0 d \n
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| 71 | 61 03 62 04 63 00 64 0a
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| 72 |
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| 73 | STDERR
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| 74 | + echo $'a\u0003b\u0004c\u0000d'
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| 75 | ## END
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| 76 |
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| 77 | ## OK bash STDOUT:
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| 78 | STDOUT
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| 79 | a 003 b 004 c \n
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| 80 | 61 03 62 04 63 0a
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| 81 |
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| 82 | STDERR
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| 83 | + echo $'a\003b\004c'
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| 84 | ## END
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| 85 |
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| 86 | ## BUG mksh STDOUT:
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| 87 | STDOUT
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| 88 | a ; 004 c \r \n
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| 89 | 61 3b 04 63 0d 0a
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| 90 |
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| 91 | STDERR
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| 92 | + echo $'a;\004c\r'
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| 93 | ## END
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| 94 |
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| 95 | ## N-I dash stdout-json: ""
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| 96 |
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| 97 | #### xtrace with unicode chars
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| 98 | case $SH in dash) exit ;; esac
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| 99 |
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| 100 | mu1='[μ]'
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| 101 | mu2=$'[\u03bc]'
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| 102 |
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| 103 | set -o xtrace
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| 104 | echo "$mu1" "$mu2"
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| 105 |
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| 106 | ## STDOUT:
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| 107 | [μ] [μ]
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| 108 | ## END
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| 109 | ## STDERR:
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| 110 | + echo '[μ]' '[μ]'
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| 111 | ## END
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| 112 | ## N-I dash stdout-json: ""
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| 113 | ## N-I dash stderr-json: ""
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| 114 |
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| 115 | #### xtrace with paths
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| 116 | set -o xtrace
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| 117 | echo my-dir/my_file.cc
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| 118 | ## STDOUT:
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| 119 | my-dir/my_file.cc
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| 120 | ## END
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| 121 | ## STDERR:
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| 122 | + echo my-dir/my_file.cc
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| 123 | ## END
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| 124 |
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| 125 | #### xtrace with tabs
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| 126 | case $SH in dash) exit ;; esac
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| 127 |
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| 128 | set -o xtrace
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| 129 | echo $'[\t]'
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| 130 | ## stdout-json: "[\t]\n"
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| 131 | ## STDERR:
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| 132 | + echo $'[\t]'
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| 133 | ## END
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| 134 | # this is a bug because it's hard to see
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| 135 | ## BUG bash stderr-json: "+ echo '[\t]'\n"
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| 136 | ## N-I dash stdout-json: ""
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| 137 | ## N-I dash stderr-json: ""
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| 138 |
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| 139 | #### xtrace with whitespace, quotes, and backslash
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| 140 | set -o xtrace
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| 141 | echo '1 2' \' \" \\
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| 142 | ## STDOUT:
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| 143 | 1 2 ' " \
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| 144 | ## END
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| 145 |
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| 146 | # YSH is different because backslashes require $'\\' and not '\', but that's OK
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| 147 | ## STDERR:
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| 148 | + echo '1 2' $'\'' '"' $'\\'
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| 149 | ## END
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| 150 |
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| 151 | ## OK bash/mksh STDERR:
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| 152 | + echo '1 2' \' '"' '\'
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| 153 | ## END
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| 154 |
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| 155 | ## BUG dash STDERR:
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| 156 | + echo 1 2 ' " \
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| 157 | ## END
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| 158 |
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| 159 | #### xtrace with newlines
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| 160 | # bash and dash trace this badly. They print literal newlines, which I don't
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| 161 | # want.
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| 162 | set -x
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| 163 | echo $'[\n]'
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| 164 | ## STDOUT:
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| 165 | [
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| 166 | ]
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| 167 | ## STDERR:
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| 168 | + echo $'[\n]'
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| 169 | ## END
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| 170 | # bash has ugly output that spans lines
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| 171 | ## OK bash STDERR:
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| 172 | + echo '[
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| 173 | ]'
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| 174 | ## END
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| 175 | ## N-I dash STDOUT:
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| 176 | $[
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| 177 | ]
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| 178 | ## END
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| 179 | ## N-I dash STDERR:
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| 180 | + echo $[\n]
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| 181 | ## END
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| 182 |
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| 183 | #### xtrace written before command executes
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| 184 | set -x
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| 185 | echo one >&2
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| 186 | echo two >&2
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| 187 | ## stdout-json: ""
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| 188 | ## STDERR:
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| 189 | + echo one
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| 190 | one
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| 191 | + echo two
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| 192 | two
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| 193 | ## OK mksh STDERR:
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| 194 | # mksh traces redirects!
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| 195 | + >&2
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| 196 | + echo one
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| 197 | one
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| 198 | + >&2
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| 199 | + echo two
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| 200 | two
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| 201 | ## END
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| 202 |
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| 203 | #### Assignments and assign builtins
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| 204 | set -x
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| 205 | x=1 x=2; echo $x; readonly x=3
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| 206 | ## STDOUT:
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| 207 | 2
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| 208 | ## END
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| 209 | ## STDERR:
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| 210 | + x=1
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| 211 | + x=2
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| 212 | + echo 2
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| 213 | + readonly x=3
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| 214 | ## END
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| 215 | ## OK dash STDERR:
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| 216 | + x=1 x=2
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| 217 | + echo 2
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| 218 | + readonly x=3
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| 219 | ## END
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| 220 | ## OK bash STDERR:
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| 221 | + x=1
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| 222 | + x=2
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| 223 | + echo 2
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| 224 | + readonly x=3
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| 225 | + x=3
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| 226 | ## END
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| 227 | ## OK mksh STDERR:
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| 228 | + x=1 x=2
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| 229 | + echo 2
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| 230 | + readonly 'x=3'
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| 231 | ## END
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| 232 |
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| 233 | #### [[ ]]
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| 234 | case $SH in dash|mksh) exit ;; esac
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| 235 |
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| 236 | set -x
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| 237 |
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| 238 | dir=/
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| 239 | if [[ -d $dir ]]; then
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| 240 | (( a = 42 ))
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| 241 | fi
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| 242 | ## stdout-json: ""
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| 243 | ## STDERR:
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| 244 | + dir=/
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| 245 | + [[ -d $dir ]]
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| 246 | + (( a = 42 ))
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| 247 | ## END
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| 248 | ## OK bash STDERR:
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| 249 | + dir=/
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| 250 | + [[ -d / ]]
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| 251 | + (( a = 42 ))
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| 252 | ## END
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| 253 | ## N-I dash/mksh stderr-json: ""
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| 254 |
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| 255 | #### PS4 is scoped
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| 256 | set -x
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| 257 | echo one
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| 258 | f() {
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| 259 | local PS4='- '
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| 260 | echo func;
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| 261 | }
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| 262 | f
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| 263 | echo two
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| 264 | ## STDERR:
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| 265 | + echo one
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| 266 | + f
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| 267 | + local 'PS4=- '
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| 268 | - echo func
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| 269 | + echo two
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| 270 | ## END
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| 271 | ## OK osh STDERR:
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| 272 | + echo one
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| 273 | + f
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| 274 | + local PS4='- '
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| 275 | - echo func
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| 276 | + echo two
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| 277 | ## END
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| 278 | ## OK dash STDERR:
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| 279 | # dash loses information about spaces! There is a trailing space, but you
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| 280 | # can't see it.
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| 281 | + echo one
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| 282 | + f
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| 283 | + local PS4=-
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| 284 | - echo func
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| 285 | + echo two
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| 286 | ## END
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| 287 | ## OK mksh STDERR:
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| 288 | # local gets turned into typeset
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| 289 | + echo one
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| 290 | + f
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| 291 | + typeset 'PS4=- '
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| 292 | - echo func
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| 293 | + echo two
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| 294 | ## END
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| 295 |
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| 296 | #### xtrace with variables in PS4
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| 297 | PS4='+$x:'
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| 298 | set -o xtrace
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| 299 | x=1
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| 300 | echo one
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| 301 | x=2
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| 302 | echo two
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| 303 | ## STDOUT:
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| 304 | one
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| 305 | two
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| 306 | ## END
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| 307 |
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| 308 | ## STDERR:
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| 309 | +:x=1
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| 310 | +1:echo one
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| 311 | +1:x=2
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| 312 | +2:echo two
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| 313 | ## END
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| 314 |
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| 315 | ## OK mksh STDERR:
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| 316 | # mksh has trailing spaces
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| 317 | +:x=1
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| 318 | +1:echo one
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| 319 | +1:x=2
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| 320 | +2:echo two
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| 321 | ## END
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| 322 |
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| 323 | ## OK osh/dash STDERR:
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| 324 | # the PS4 string is evaluated AFTER the variable is set. That's OK
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| 325 | +1:x=1
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| 326 | +1:echo one
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| 327 | +2:x=2
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| 328 | +2:echo two
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| 329 | ## END
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| 330 |
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| 331 | #### PS4 with unterminated ${
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| 332 | # osh shows inline error; maybe fail like dash/mksh?
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| 333 | x=1
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| 334 | PS4='+${x'
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| 335 | set -o xtrace
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| 336 | echo one
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| 337 | echo status=$?
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| 338 | ## STDOUT:
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| 339 | one
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| 340 | status=0
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| 341 | ## END
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| 342 | # mksh and dash both fail. bash prints errors to stderr.
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| 343 | ## OK dash stdout-json: ""
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| 344 | ## OK dash status: 2
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| 345 | ## OK mksh stdout-json: ""
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| 346 | ## OK mksh status: 1
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| 347 |
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| 348 | #### PS4 with unterminated $(
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| 349 | # osh shows inline error; maybe fail like dash/mksh?
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| 350 | x=1
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| 351 | PS4='+$(x'
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| 352 | set -o xtrace
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| 353 | echo one
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| 354 | echo status=$?
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| 355 | ## STDOUT:
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| 356 | one
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| 357 | status=0
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| 358 | ## END
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| 359 | # mksh and dash both fail. bash prints errors to stderr.
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| 360 | ## OK dash stdout-json: ""
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| 361 | ## OK dash status: 2
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| 362 | ## OK mksh stdout-json: ""
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| 363 | ## OK mksh status: 1
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| 364 |
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| 365 | #### PS4 with runtime error
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| 366 | # osh shows inline error; maybe fail like dash/mksh?
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| 367 | x=1
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| 368 | PS4='+oops $(( 1 / 0 )) \$'
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| 369 | set -o xtrace
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| 370 | echo one
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| 371 | echo status=$?
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| 372 | ## STDOUT:
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| 373 | one
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| 374 | status=0
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| 375 | ## END
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| 376 | # mksh and dash both fail. bash prints errors to stderr.
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| 377 | ## OK dash stdout-json: ""
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| 378 | ## OK dash status: 2
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| 379 | ## OK mksh stdout-json: ""
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| 380 | ## OK mksh status: 1
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| 381 |
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| 382 |
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| 383 | #### Reading $? in PS4
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| 384 | PS4='[last=$?] '
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| 385 | set -x
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| 386 | false
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| 387 | echo ok
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| 388 | ## STDOUT:
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| 389 | ok
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| 390 | ## END
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| 391 | ## STDERR:
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| 392 | [last=0] false
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| 393 | [last=1] echo ok
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| 394 | ## END
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| 395 | ## OK osh STDERR:
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| 396 | [last=0] 'false'
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| 397 | [last=1] echo ok
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| 398 | ## END
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| 399 |
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| 400 |
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| 401 | #### Regression: xtrace for "declare -a a+=(v)"
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| 402 | case $SH in dash|mksh) exit ;; esac
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| 403 |
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| 404 | a=(1)
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| 405 | set -x
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| 406 | declare a+=(2)
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| 407 | ## STDERR:
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| 408 | + declare a+=(2)
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| 409 | ## END
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| 410 | ## OK bash STDERR:
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| 411 | + a+=('2')
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| 412 | + declare a
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| 413 | ## END
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| 414 | ## N-I dash/mksh STDERR:
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| 415 | ## END
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| 416 |
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| 417 |
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| 418 | #### Regression: xtrace for "a+=(v)"
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| 419 | case $SH in dash|mksh) exit ;; esac
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| 420 |
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| 421 | a=(1)
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| 422 | set -x
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| 423 | a+=(2)
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| 424 | ## STDERR:
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| 425 | + a+=(2)
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| 426 | ## END
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| 427 | ## N-I dash/mksh STDERR:
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| 428 | ## END
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