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fix(aws-cdk): warn when legacy exports are used #931

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Merged
aws-cdk-automation merged 2 commits into from
Nov 10, 2025
Merged

fix(aws-cdk): warn when legacy exports are used #931

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036f94e
feat(aws-cdk): add deprecation warning for legacy exports
mrgrain Nov 9, 2025
e43eda9
update color
mrgrain Nov 9, 2025
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21 changes: 21 additions & 0 deletions packages/aws-cdk/lib/legacy-exports.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -86,3 +86,24 @@ export const {
data,
prefix,
} = legacy;

if (!process.env.CDK_DISABLE_LEGACY_EXPORT_WARNING) {
// eslint-disable-next-line no-console
console.warn([
'',
'\x1b[33m█████████████████████████████████████████████████████████████████████████\x1b[0m',
'\x1b[33m█ █\x1b[0m',
'\x1b[33m█ ⚠ WARNING: You are using LEGACY EXPORTS from the aws-cdk package! █\x1b[0m',
'\x1b[33m█ █\x1b[0m',
'\x1b[33m█ These exports were never officially supported and will be removed █\x1b[0m',
'\x1b[33m█ after 2026-03-01. █\x1b[0m',
'\x1b[33m█ Please migrate to using the official CDK Toolkit Library instead: █\x1b[0m',
'\x1b[33m█ https://docs.aws.amazon.com/cdk/api/toolkit-lib/ █\x1b[0m',
'\x1b[33m█ █\x1b[0m',
'\x1b[33m█ For more information: https://github.com/aws/aws-cdk-cli/issues/310 █\x1b[0m',
'\x1b[33m█ To disable this warning: CDK_DISABLE_LEGACY_EXPORT_WARNING=1 █\x1b[0m',
'\x1b[33m█ █\x1b[0m',
'\x1b[33m█████████████████████████████████████████████████████████████████████████\x1b[0m',
'',
].join('\n'));
}
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