| 1 | ## our_shell: ysh
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| 2 | ## oils_failures_allowed: 0
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| 3 |
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| 4 | #### captureStdout() is like $()
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| 5 |
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| 6 | proc p {
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| 7 | var captured = 'captured'
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| 8 | var cmd = ^(echo one; echo $captured)
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| 9 |
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| 10 | var stdout = io.captureStdout(cmd)
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| 11 | pp test_ (stdout)
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| 12 | }
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| 13 |
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| 14 | p
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| 15 |
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| 16 | ## STDOUT:
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| 17 | (Str) "one\ncaptured"
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| 18 | ## END
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| 19 |
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| 20 | #### captureStdout() failure
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| 21 |
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| 22 | var c = ^(echo one; false; echo two)
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| 23 |
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| 24 | # Hm this prints a message, but no stack trace
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| 25 | # Should make it fail I think
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| 26 |
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| 27 | try {
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| 28 | var x = io.captureStdout(c)
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| 29 | }
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| 30 | # This has {"code": 3} because it's an expression error. Should probably
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| 31 | pp test_ (_error)
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| 32 |
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| 33 | var x = io.captureStdout(c)
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| 34 |
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| 35 | ## status: 4
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| 36 | ## STDOUT:
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| 37 | (Dict) {"status":1,"code":4,"message":"captureStdout(): command failed with status 1"}
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| 38 | ## END
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| 39 |
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| 40 | #### io->eval() is like eval builtin
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| 41 |
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| 42 | var c = ^(echo one; echo two)
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| 43 | var status = io->eval(c)
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| 44 |
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| 45 | # doesn't return anything
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| 46 | echo status=$status
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| 47 |
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| 48 | ## STDOUT:
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| 49 | one
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| 50 | two
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| 51 | status=null
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| 52 | ## END
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| 53 |
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| 54 | #### captureAll() is like $() but captures stderr and status
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| 55 |
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| 56 | proc p {
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| 57 | var captured = 'captured'
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| 58 | var cmd = ^(
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| 59 | echo stdout
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| 60 | echo stderr >&2
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| 61 | echo $captured
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| 62 | echo $captured >&2
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| 63 | printf '\000'
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| 64 | exit 42
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| 65 | )
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| 66 |
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| 67 | var result = io.captureAll(cmd)
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| 68 | pp test_ (result)
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| 69 | }
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| 70 |
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| 71 | p
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| 72 |
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| 73 | ## STDOUT:
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| 74 | (Dict) {"stdout":"stdout\ncaptured\n\u0000","stderr":"stderr\ncaptured\n","status":42}
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| 75 | ## END
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| 76 |
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| 77 | #### captureAll() doesn't fail
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| 78 |
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| 79 | var c = ^(shopt --unset verbose_errexit; echo out; echo err >&2; false; echo two)
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| 80 |
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| 81 | # Hm this prints a message, but no stack trace
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| 82 | # Should make it fail I think
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| 83 |
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| 84 | try {
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| 85 | var x = io.captureAll(c)
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| 86 | }
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| 87 | # This has {"code": 3} because it's an expression error. Should probably
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| 88 | pp test_ (_error)
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| 89 | pp test_ (x)
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| 90 |
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| 91 | ## status: 0
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| 92 | ## STDOUT:
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| 93 | (Dict) {"code":0}
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| 94 | (Dict) {"stdout":"out\n","stderr":"err\n","status":1}
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| 95 | ## END
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| 96 |
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| 97 | #### io->eval() with failing command - caller must handle
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| 98 |
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| 99 | var c = ^(echo one; false; echo two)
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| 100 |
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| 101 | try {
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| 102 | call io->eval(c)
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| 103 | }
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| 104 | pp test_ (_error)
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| 105 |
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| 106 | call io->eval(c)
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| 107 |
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| 108 | ## status: 1
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| 109 | ## STDOUT:
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| 110 | one
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| 111 | (Dict) {"code":1}
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| 112 | one
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| 113 | ## END
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| 114 |
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| 115 | #### io->eval() with exit
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| 116 |
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| 117 | var c = ^(echo one; exit; echo two)
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| 118 |
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| 119 | try {
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| 120 | call io->eval(c)
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| 121 | }
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| 122 | echo 'we do not get here'
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| 123 | pp test_ (_error)
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| 124 |
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| 125 |
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| 126 | ## STDOUT:
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| 127 | one
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| 128 | ## END
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| 129 |
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