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9f28505af7
Stacked on the modifications PR. Now that no live code path references
the per-package fetchers, the shared HTTP/parsing helpers, the
in-process normalizer, or the example template, delete them. Pure
deletion — no behavior change.
- ~93 per-package <pkg>/releases.js fetcher modules.
- _common/{brew,fetcher,git-tag,gitea,github,github-source,
githubish,githubish-source}.js shared HTTP/parsing helpers.
- _webi/normalize.js in-process normalization layer (cache files
arrive normalized from webicached).
- _example/releases.js fetcher template for new packages.
The Go cache daemon (webicached) is now the sole producer of release
metadata; the Node process never makes an upstream request.
title, homepage, tagline
| title | homepage | tagline |
|---|---|---|
| uuidv7 | https://github.com/coolaj86/uuidv7 | uuidv7: generate UUID v7 strings, command line edition |
To update or switch versions, run webi uuidv7@stable.
Cheat Sheet
uuidv7exists because somebody was tired of searching "UUID v7 generator" just to get a test value for a little ditty now and then. Though, the time spent creating it will probably never be recouped...
uuidv7
01928d73-d8ed-7211-a314-7081d763271d
Table of Contents
- Files
- Generating Many
UUIDv7s - Roll Your Own UUID v7 Generator
- Understanding the UUID v7 spec
- UUID v7, by the String
- UUID v7, by the Byte
Files
These are the files / directories that are created and/or modified with this install:
~/.config/envman/PATH.env
~/.local/bin/uuidv7
~/.local/opt/uuidv7/
How to Generate Many v7 UUIDs at Once
uuidv7 ; uuidv7 ; uuidv7
01928d74-3ff7-796f-8417-0fee6da50a5a
01928d74-3ff9-73f7-8ce1-71e741cfa56f
01928d74-3ffb-7e06-abe9-3fe20e5cb5f2
How to Generate UPPER CASE (like uuidgen)
uuidv7 | tr '[:lower:]' '[:upper:]'
01928D73-D8ED-7211-A314-7081D763271D
How to Generate v4 UUIDs?
Use uuidgen.
uuidgen
uuidgen | tr '[:upper:]' '[:lower:]'
84FA79E5-024E-4388-8D10-91618B93BE9D
84fa79e5-024e-4388-8d10-91618b93be9d
How could I roll my own UUID v7 generator?
It's not that hard. There are examples in many languages here:
See the simplified spec examples below.
What's the UUID v7 spec, in simple terms?
See the explanation here:
A snapshot of that is copied here, for convenience:
UUID v7, by the Characters
There are 36 characters total: 32 hex (0123456789abcdef) + 4 dashes (-)
8 time 4 time 1v + 3ra ½v + 3½rb 12 random b
019212d3 - 87f4 - 7d25 - 902e - b8d39fe07f08
- 8ch hex time high
-- 4ch hex time low
-- 4ch hex version + "random a"
- 1ch hex version:
7 - 3ch hex "random a"
- 1ch hex version:
-- 4ch hex variant + "random b"
- 1ch hex version:
8,9,a,b - 3ch hex "random b"
- 1ch hex version:
-- 12ch hex randam a
- 4ch hex random a
- 8ch hex random a
UUID v7, by the Bits
There are 128 bits total:
48 time and 80 random, with 4 version and 2 variant bits substituted
48 time 4ver, 12ra 2var, 14rb random b
019212d3-87f4 - 7d25 - 902e - b8d39fe07f08
- 48 bits of timestamp
- 32-bit high (minutes to years)
- 16-bit low (seconds & milliseconds)
- 16 bits of version + random
- 4-bit version (
0b0111) - 12-bit random
- 4-bit version (
- 64-bits variant + random
- 2-bit variant (
0b10) - 62-bit random
- 2-bit variant (