| 1 | ## compare_shells: dash bash-4.4 mksh zsh
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| 2 |
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| 3 | #### Eval
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| 4 | eval "a=3"
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| 5 | echo $a
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| 6 | ## stdout: 3
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| 7 |
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| 8 | #### eval accepts/ignores --
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| 9 | eval -- echo hi
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| 10 | ## STDOUT:
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| 11 | hi
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| 12 | ## END
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| 13 | ## BUG dash status: 127
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| 14 | ## BUG dash stdout-json: ""
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| 15 |
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| 16 | #### eval usage
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| 17 | eval -
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| 18 | echo $?
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| 19 | eval -z
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| 20 | echo $?
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| 21 | ## STDOUT:
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| 22 | 127
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| 23 | 2
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| 24 | ## END
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| 25 | ## OK dash STDOUT:
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| 26 | 127
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| 27 | 127
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| 28 | ## END
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| 29 | ## OK mksh status: 1
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| 30 | ## OK mksh STDOUT:
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| 31 | 127
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| 32 | ## END
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| 33 | ## OK zsh STDOUT:
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| 34 | 0
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| 35 | 127
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| 36 | ## END
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| 37 |
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| 38 | #### Source
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| 39 | lib=$TMP/spec-test-lib.sh
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| 40 | echo 'LIBVAR=libvar' > $lib
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| 41 | . $lib # dash doesn't have source
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| 42 | echo $LIBVAR
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| 43 | ## stdout: libvar
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| 44 |
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| 45 | #### source accepts/ignores --
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| 46 | echo 'echo foo' > $TMP/foo.sh
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| 47 | source -- $TMP/foo.sh
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| 48 | ## STDOUT:
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| 49 | foo
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| 50 | ## END
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| 51 | ## N-I dash stdout-json: ""
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| 52 | ## N-I dash status: 127
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| 53 |
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| 54 | #### Source nonexistent
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| 55 | source /nonexistent/path
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| 56 | echo status=$?
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| 57 | ## stdout: status=1
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| 58 | ## OK dash/zsh stdout: status=127
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| 59 |
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| 60 | #### Source with no arguments
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| 61 | source
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| 62 | echo status=$?
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| 63 | ## stdout: status=2
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| 64 | ## OK mksh/zsh stdout: status=1
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| 65 | ## N-I dash stdout: status=127
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| 66 |
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| 67 | #### Source with arguments
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| 68 | . $REPO_ROOT/spec/testdata/show-argv.sh foo bar # dash doesn't have source
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| 69 | ## STDOUT:
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| 70 | show-argv: foo bar
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| 71 | ## END
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| 72 | ## N-I dash STDOUT:
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| 73 | show-argv:
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| 74 | ## END
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| 75 |
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| 76 | #### Source from a function, mutating argv and defining a local var
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| 77 | f() {
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| 78 | . $REPO_ROOT/spec/testdata/source-argv.sh # no argv
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| 79 | . $REPO_ROOT/spec/testdata/source-argv.sh args to src # new argv
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| 80 | echo $@
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| 81 | echo foo=$foo # defined in source-argv.sh
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| 82 | }
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| 83 | f args to func
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| 84 | echo foo=$foo # not defined
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| 85 | ## STDOUT:
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| 86 | source-argv: args to func
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| 87 | source-argv: args to src
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| 88 | to func
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| 89 | foo=foo_val
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| 90 | foo=
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| 91 | ## END
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| 92 | ## N-I dash STDOUT:
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| 93 | source-argv: args to func
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| 94 | source-argv: to func
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| 95 | func
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| 96 | foo=foo_val
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| 97 | foo=
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| 98 | ## END
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| 99 |
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| 100 | #### Source with syntax error
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| 101 | # TODO: We should probably use dash behavior of a fatal error.
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| 102 | # Although set-o errexit handles this. We don't want to break the invariant
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| 103 | # that a builtin like 'source' behaves like an external program. An external
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| 104 | # program can't halt the shell!
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| 105 | echo 'echo >' > $TMP/syntax-error.sh
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| 106 | . $TMP/syntax-error.sh
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| 107 | echo status=$?
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| 108 | ## stdout: status=2
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| 109 | ## OK bash/mksh stdout: status=1
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| 110 | ## OK zsh stdout: status=126
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| 111 | ## OK dash stdout-json: ""
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| 112 | ## OK dash status: 2
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| 113 |
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| 114 | #### Eval with syntax error
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| 115 | eval 'echo >'
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| 116 | echo status=$?
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| 117 | ## stdout: status=2
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| 118 | ## OK bash/zsh stdout: status=1
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| 119 | ## OK dash stdout-json: ""
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| 120 | ## OK dash status: 2
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| 121 | ## OK mksh stdout-json: ""
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| 122 | ## OK mksh status: 1
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| 123 |
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| 124 | #### Eval in does tilde expansion
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| 125 |
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| 126 | x="~"
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| 127 | eval y="$x" # scalar
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| 128 | test "$x" = "$y" || echo FALSE
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| 129 | [[ $x == /* ]] || echo FALSE # doesn't start with /
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| 130 | [[ $y == /* ]] && echo TRUE
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| 131 |
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| 132 | #argv "$x" "$y"
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| 133 |
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| 134 | ## STDOUT:
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| 135 | FALSE
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| 136 | FALSE
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| 137 | TRUE
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| 138 | ## END
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| 139 | ## BUG dash status: 127
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| 140 | ## BUG dash stdout-json: "FALSE\n"
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| 141 | ## BUG mksh status: 1
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| 142 | ## BUG mksh stdout-json: "FALSE\n"
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| 143 |
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| 144 | #### Eval in bash does tilde expansion in array
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| 145 |
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| 146 | # the "make" plugin in bash-completion relies on this? wtf?
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| 147 | x="~"
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| 148 |
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| 149 | # UPSTREAM CODE
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| 150 |
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| 151 | #eval array=( "$x" )
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| 152 |
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| 153 | # FIXED CODE -- proper quoting.
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| 154 |
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| 155 | eval 'array=(' "$x" ')' # array
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| 156 |
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| 157 | test "$x" = "${array[0]}" || echo FALSE
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| 158 | [[ $x == /* ]] || echo FALSE # doesn't start with /
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| 159 | [[ "${array[0]}" == /* ]] && echo TRUE
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| 160 | ## STDOUT:
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| 161 | FALSE
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| 162 | FALSE
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| 163 | TRUE
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| 164 | ## END
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| 165 | ## N-I dash status: 2
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| 166 | ## N-I dash stdout-json: ""
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| 167 | ## BUG mksh status: 1
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| 168 | ## BUG mksh STDOUT:
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| 169 | FALSE
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| 170 | ## END
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| 171 | ## BUG zsh status: 1
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| 172 | ## BUG zsh STDOUT:
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| 173 | FALSE
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| 174 | FALSE
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| 175 | ## END
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| 176 |
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| 177 | #### source works for files in current directory (bash only)
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| 178 | cd $TMP
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| 179 | echo "echo current dir" > cmd
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| 180 | . cmd
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| 181 | echo status=$?
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| 182 | ## STDOUT:
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| 183 | current dir
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| 184 | status=0
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| 185 | ## END
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| 186 | ## N-I zsh STDOUT:
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| 187 | status=127
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| 188 | ## END
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| 189 |
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| 190 | # This is a special builtin so failure is fatal.
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| 191 |
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| 192 | ## N-I dash stdout-json: ""
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| 193 | ## N-I dash status: 2
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| 194 | ## N-I mksh stdout-json: ""
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| 195 | ## N-I mksh status: 1
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| 196 |
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| 197 | #### source looks in PATH for files
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| 198 | mkdir -p dir
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| 199 | echo "echo hi" > dir/cmd
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| 200 | PATH="dir:$PATH"
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| 201 | . cmd
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| 202 | rm dir/cmd
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| 203 | ## STDOUT:
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| 204 | hi
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| 205 | ## END
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| 206 |
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| 207 | #### source finds files in PATH before current dir
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| 208 | cd $TMP
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| 209 | mkdir -p dir
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| 210 | echo "echo path" > dir/cmd
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| 211 | echo "echo current dir" > cmd
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| 212 | PATH="dir:$PATH"
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| 213 | . cmd
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| 214 | echo status=$?
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| 215 | ## STDOUT:
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| 216 | path
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| 217 | status=0
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| 218 | ## END
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| 219 |
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| 220 | #### source works for files in subdirectory
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| 221 | mkdir -p dir
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| 222 | echo "echo path" > dir/cmd
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| 223 | . dir/cmd
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| 224 | rm dir/cmd
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| 225 | ## STDOUT:
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| 226 | path
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| 227 | ## END
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| 228 |
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| 229 | #### exit within eval (regression)
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| 230 | eval 'exit 42'
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| 231 | echo 'should not get here'
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| 232 | ## stdout-json: ""
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| 233 | ## status: 42
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| 234 |
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| 235 | #### exit within source (regression)
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| 236 | cd $TMP
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| 237 | echo 'exit 42' > lib.sh
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| 238 | . ./lib.sh
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| 239 | echo 'should not get here'
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| 240 | ## stdout-json: ""
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| 241 | ## status: 42
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| 242 |
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| 243 | #### source doesn't crash when targeting a directory
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| 244 | cd $TMP
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| 245 | mkdir -p dir
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| 246 | . ./dir/
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| 247 | echo status=$?
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| 248 | ## stdout: status=1
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| 249 | ## OK dash/zsh/mksh stdout: status=0
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