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@creack creack commented May 5, 2020

Revert #75 but don't change the "old" behavior of pty.Start and pty.StartWithSize.

Introduce pty.StartWithAttr to explicitly set process attributes, which allow for pty to be created without setsid/setctty, fixing the issue faced by aerc.

Fixes error with the new go1.15 behavior introduced in https://go-review.googlesource.com/c/go/+/231638/ ( golang/go#29458 ).

Fixes #96

cc @kr @ddevault @myitcv

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ddevault commented May 5, 2020

How would aerc need to use this?

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myitcv commented May 5, 2020

Thanks - 943a9a2 seems to fix the problem I was seeing. Tested against Go +b4ecafc986

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creack commented May 5, 2020

@ddevault I submitted a patch here https://lists.sr.ht/~sircmpwn/aerc/patches/10481 it fixes the pty-example case. Please let me know if you find more issues.

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ddevault commented May 5, 2020

Thanks for the patch!

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myitcv commented May 5, 2020

Is the plan to get this merged soon-ish?

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creack commented May 5, 2020

Will merge and publish new tag tomorrow.

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myitcv commented May 6, 2020

Will merge and publish new tag tomorrow.

Thanks. Just noting Ian's reply in #96 (comment)

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creack commented May 6, 2020

I considered passing the tty as ExtraFiles, or even setting Ctty to stdout when stdin is overridden, but as the change is relatively recent and splitting a tty in part if usually a bad idea, I think it is better to revert the main helper to the original behavior.

Edge cases needing to do that can use the new helper or directly call pty.Open.

@creack creack merged commit f272787 into master May 7, 2020
@creack creack deleted the creack/start-with-attrs branch May 7, 2020 13:36
tgulacsi pushed a commit to tgulacsi/aerc that referenced this pull request Aug 20, 2020
Soves an issue with go1.15 not letting ctty be a parent. See
creack/pty#97 for more details.

Signed-off-by: Guillaume J. Charmes <[email protected]>
notnoop pushed a commit to hashicorp/nomad that referenced this pull request Sep 8, 2020
Starting with golang 1.5, setting Ctty value result in `Setctty set but Ctty not valid in child` error, as part of golang/go#29458 .
This commit lifts the fix in creack/pty#97 .
notnoop pushed a commit to hashicorp/nomad that referenced this pull request Sep 9, 2020
Upgrade to golang 1.15

Starting with golang 1.5, setting Ctty value result in `Setctty set but Ctty not valid in child` error, as part of golang/go#29458 .
This commit lifts the fix in creack/pty#97 .
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Setctty set but Ctty not valid in child with Go +be08e10b3b

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