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Fix quoting of quotes in process error messages #666

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merged 1 commit into from
Jan 8, 2024
Merged

Fix quoting of quotes in process error messages #666

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2 changes: 1 addition & 1 deletion lib_eio/process.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -97,7 +97,7 @@ let bad_char = function
c <= 32 || c >= 127

let pp_arg f x =
if x = "" || String.exists bad_char x then Fmt.(quote string) f x
if x = "" || String.exists bad_char x then Fmt.pf f "%S" x
else Fmt.string f x

let pp_args = Fmt.hbox (Fmt.list ~sep:Fmt.sp pp_arg)
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4 changes: 2 additions & 2 deletions tests/process.md
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Expand Up @@ -145,10 +145,10 @@ If a command fails, we get shown the arguments (quoted if necessary):

```ocaml
# run @@ fun mgr env ->
Process.run mgr ["bash"; "-c"; "exit 3"; ""; "foo"];;
Process.run mgr ["bash"; "-c"; "exit 3"; ""; "foo"; "\"bar\""];;
Exception:
Eio.Io Process Child_error Exited (code 3),
running command: bash -c "exit 3" "" foo
running command: bash -c "exit 3" "" foo "\"bar\""
```

Exit code success can be determined by is_success (Process.run):
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