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Revert #71372 ("Fix #! (shebang) stripping account space issue"). #71634

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merged 1 commit into from
Apr 28, 2020

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@eddyb eddyb commented Apr 28, 2020

While #71372 fixed some of the problems #!-stripping had, it introduced others:

  • inefficient implementation (.chars().filter(...).collect() on the entire input file)
  • it ignores whitespace anywhere, stripping # ! ... which isn't a valid shebang
    • the definition of "whitespace" it uses includes newlines, which means even \n#\n!\n... is stripped as a shebang (and anything matching the regex \s*#\s*!\s*, and not followed by [, really)
  • it's backward-incompatible but didn't go through Crater

Now, #71487 is already open and will solve all of these issues. But for running Crater, and just in case #71487 takes a bit longer, I decided it's safer to just revert #71372.

This will also make #71372's diff clearer, as it will start again from the original whitespace-unaware version.

r? @petrochenkov

…ipping, r=estebank"

This reverts commit 46a8dce, reversing
changes made to f28e387.
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 28, 2020
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@bors r+ rollup

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bors commented Apr 28, 2020

📌 Commit 4d67c8d has been approved by petrochenkov

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 28, 2020
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petrochenkov commented Apr 28, 2020

Did #71372 go into beta, btw?
UPD: Looks like it didn't.

bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 28, 2020
Rollup of 5 pull requests

Successful merges:

 - rust-lang#71311 (On `FnDef` type annotation suggestion, use fn-pointer output)
 - rust-lang#71488 (normalize field projection ty to fix broken MIR issue)
 - rust-lang#71489 (Fix off by one in treat err as bug)
 - rust-lang#71585 (remove obsolete comment)
 - rust-lang#71634 (Revert rust-lang#71372 ("Fix #! (shebang) stripping account space issue").)

Failed merges:

r? @ghost
@bors bors merged commit 6cad1e3 into rust-lang:master Apr 28, 2020
@eddyb eddyb deleted the revert-71372 branch April 28, 2020 16:39
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4 participants