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[WG 2018-09-11] Relax specification for buildpack and stack IDs #7

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Oct 17, 2018
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[WG 2018-09-11] Relax specification for buildpack and stack IDs #7

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8966754
[WG 2018-09-11] Relax specification for buildpack and stack IDs
sclevine Sep 14, 2018
7336ff5
Fix typo
sclevine Sep 14, 2018
8dcb0f1
Fix typo (MOST NOT -> MUST NOT)
sclevine Oct 17, 2018
4101603
Clarify wording around case-insensitive comparisons
sclevine Oct 17, 2018
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11 changes: 9 additions & 2 deletions buildpack.md
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Expand Up @@ -594,10 +594,17 @@ run-images = ["<run image tag>"]
```

Buildpack authors MUST choose a globally unique ID, for example: "io.buildpacks.ruby".
The buildpack ID MUST contain at least one period (`.`).

The buildpack ID:
- MUST only contain numbers, letters, and the charactors `.`, `/`, and `-`.
- MUST NOT be `config` or `app`.
- MUST NOT be identical to any other buildpack ID when using a case-insensitive comparison.

Stack authors MUST choose a globally unique ID, for example: "io.buildpacks.mystack".
The stack ID MUST contain at least one period (`.`).

The stack ID:
- MUST only contain numbers, letters, and the charactors `.`, `/`, and `-`.
- MUST NOT be identical to any other buildpack ID when using a case-insensitive comparison.

The stack `build-images` and `run-images` are suggested sources of the image for platforms that are unaware of the stack ID.

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