[Feature][Storage template] add built‑in eq and or helpers (allow conditional folders for extensions like .insp / .insv)

[andreymaznyak]

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request.

• Yes

The feature

Immich’s storage template is powerful, but Handlebars lacks native string comparison.
Two tiny built‑in helpers—eq and or—would let users route large Insta360 .insp / .insv files into a separate drive without pulling in the 130‑helper handlebars‑helpers package. The change is few lines in StorageTemplateService.

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Background
• Storage templates let us craft on‑disk paths (e.g. {{y}}/{{MM}}‑{{MMMM}}/…)  .
• Handlebars’ core only offers truthy #if; there is no string equality or logical OR   .
• External library handlebars‑helpers provides those helpers but drags 130 + functions into Immich  .
• Insta360 X3 records heavy dual‑lens videos as INSV/INSP; users often mount a separate volume for them   .

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Current vs. Desired Templates

Situation Template
Today (works) hbs{{y}}/{{MM}}-{{MMMM}}/{{filetype}}/{{y}}-{{MM}}-{{dd}}{{HH}}-{{mm}}{{filename}}
Wanted (needs helpers) hbs{{y}}/{{#if (or (eq extension "insp") (eq extension "insv"))}}360Media/{{/if}}{{MM}}-{{MMMM}}/{{filetype}}/{{y}}-{{MM}}-{{dd}}{{HH}}-{{mm}}{{filename}}

Live demo: https://codepen.io/andreymaznyak/pen/EaaQMbO.

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Proposed Change
1. Register two minimal helpers right before any template compilation:

// server/src/services/storage-template.service.ts
import handlebars from 'handlebars';

handlebars.registerHelper('eq', (a, b) => a === b);
handlebars.registerHelper('or', (a, b) => a || b);

Platform

• Server
• Web
• Mobile

[MtheK]

That feature would be very useful, why was the request closed?
Can not find any indication that it is implemented.