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fix(migrations): avoid conflicts with some greek letters in control flow migration #55113

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crisbeto
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@crisbeto crisbeto commented Mar 29, 2024

The control flow migration was using a couple of Greek letters as placeholders. This ended up conflicting with templates authored in Greek.

These changes use a more obscure placeholder to make conflicts less likely. It also moves the placeholder generation to a centralized function so it's easier to make changes if we decide to update the pattern again.

Fixes #55085.

…low migration

The control flow migration was using a couple of Greek letters as placeholders. This ended up conflicting with templates authored in Greek.

These changes use a more obscure placeholder to make conflicts less likely. It also moves the placeholder generation to a centralized function so it's easier to make changes if we decide to update the pattern again.

Fixes angular#55085.
@crisbeto crisbeto added action: review The PR is still awaiting reviews from at least one requested reviewer target: patch This PR is targeted for the next patch release area: migrations Issues related to `ng update` migrations labels Mar 29, 2024
@ngbot ngbot bot added this to the Backlog milestone Mar 29, 2024
export function getPlaceholder(
value: string, kind: PlaceholderKind = PlaceholderKind.Default): string {
const name = `<<<ɵɵngControlFlowMigration_${kind}ɵɵ>>>`;
return `___${name}${value}${name}___`;
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Technically things can still break if somebody is wrapping their content in ___<<<ɵɵngControlFlowMigration_0ɵɵ>>><<<ɵɵngControlFlowMigration_0ɵɵ>>>___ but hopefully it's a bit less likely than before.

@crisbeto crisbeto added the merge: caretaker note Alert the caretaker performing the merge to check the PR for an out of normal action needed or note label Mar 29, 2024
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Caretaker note: the presubmit is failing because of one unrelated flaky target.

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XhmikosR commented Mar 29, 2024

Nice, thanks for the fast response to the issue! I now wish had reported it sooner 😊

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LGTM! Thanks for fixing this, @crisbeto

@crisbeto crisbeto added action: merge The PR is ready for merge by the caretaker and removed action: review The PR is still awaiting reviews from at least one requested reviewer labels Mar 29, 2024
atscott pushed a commit that referenced this pull request Mar 29, 2024
…low migration (#55113)

The control flow migration was using a couple of Greek letters as placeholders. This ended up conflicting with templates authored in Greek.

These changes use a more obscure placeholder to make conflicts less likely. It also moves the placeholder generation to a centralized function so it's easier to make changes if we decide to update the pattern again.

Fixes #55085.

PR Close #55113
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atscott commented Mar 29, 2024

This PR was merged into the repository by commit 0c20c40.

@atscott atscott closed this in 0c20c40 Mar 29, 2024
jessicajaniuk pushed a commit to jessicajaniuk/angular that referenced this pull request Mar 29, 2024
…low migration (angular#55113)

The control flow migration was using a couple of Greek letters as placeholders. This ended up conflicting with templates authored in Greek.

These changes use a more obscure placeholder to make conflicts less likely. It also moves the placeholder generation to a centralized function so it's easier to make changes if we decide to update the pattern again.

Fixes angular#55085.

PR Close angular#55113
jessicajaniuk pushed a commit to jessicajaniuk/angular that referenced this pull request Mar 29, 2024
…low migration (angular#55113)

The control flow migration was using a couple of Greek letters as placeholders. This ended up conflicting with templates authored in Greek.

These changes use a more obscure placeholder to make conflicts less likely. It also moves the placeholder generation to a centralized function so it's easier to make changes if we decide to update the pattern again.

Fixes angular#55085.

PR Close angular#55113
ilirbeqirii pushed a commit to ilirbeqirii/angular that referenced this pull request Apr 6, 2024
…low migration (angular#55113)

The control flow migration was using a couple of Greek letters as placeholders. This ended up conflicting with templates authored in Greek.

These changes use a more obscure placeholder to make conflicts less likely. It also moves the placeholder generation to a centralized function so it's easier to make changes if we decide to update the pattern again.

Fixes angular#55085.

PR Close angular#55113
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@angular/core:control-flow migration breaks with Greek characters
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