Do not set the terminal to raw mode if it isn't actually a terminal #19
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It doesn't make sense to try to set a terminal as a raw terminal if it isn't actually a terminal. Worse, this may break tests that assume they can simply provide a pipe to a subprocess and expect the terminal will be unchanged.
See this PR, which needs this patch:
sharkdp/bat#2631
Note that this requires Rust 1.70 for the
IsTerminal
trait, if that's too new I can switch this PR to use the is-terminal crate instead.https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html#isterminal