lint rule: "a message should only be used once"

[samuelstroschein]

Discussed in opral/monorepo#2253

^{Originally posted by samuelstroschein February 18, 2024}

Problem

Referencing the same message in multiple places leads to a broken message.

No guarantee exists that a message with the content like "learn more" won't be changed by someone to "learn more about unlimited inboxes". If the message is rendering all "learn more" references, the example website below will break at 2 and 3.

Proposal

A lint rule that detects if a message id is used multiple times in source code.

// unlimited inboxes
<p>{m.elephant_big_tree()}</p>

// manage team members
// 💥 error m.elephant is used multiple times
<p>{m.elephant_big_tree()}</p>

// spam report
// 💥 error m.elephant is used multiple times
<p>{m.blue_box({ title: m.elephant_big_tree() })}</p>

(Creating new messages is cheaper than trying to manage shared messages.)

Additional information

• emerged in a conversation on discord https://discord.com/channels/897438559458430986/1206732202839253052/1208848809304530974
• requires plugin API where is a message used in source code for "unused message", "hardcoded text", etc. lint rules monorepo#2126

[linear]

MESDK-42 lint rule: "a message should only be used once"