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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