Allerta: reference the googlefonts/allerta .glyphs source

Point METADATA.pb at the new googlefonts/allerta repository (the FontForge SFD
source converted to Glyphs, building with gftools-builder3 + fontc) and
rewrite upstream_info.md to record the modernization.

Assisted by an AI agent (Claude Opus 4.8)

diff --git a/ofl/allerta/METADATA.pb b/ofl/allerta/METADATA.pb
index 6c33dcaa282083cff939d217b375d425e0ae281a..2e7fc7fbf4a16c17da8769ec871360a322478569 100644 (file)
--- a/ofl/allerta/METADATA.pb
+++ b/ofl/allerta/METADATA.pb
@@ -4,8 +4,18 @@ license: "OFL"
 category: "SANS_SERIF"
 date_added: "2010-11-30"
 source {
-  repository_url: "https://github.com/librefonts/allerta"
-  commit: "88a8c57b949cb8224f24815d5d3aa05d4950de69"
+  repository_url: "https://github.com/googlefonts/allerta"
+  commit: "2efd2499258022f0a5b1887da95ecfc62a5793cd"
+  files {
+    source_file: "OFL.txt"
+    dest_file: "OFL.txt"
+  }
+  files {
+    source_file: "fonts/ttf/Allerta-Regular.ttf"
+    dest_file: "Allerta-Regular.ttf"
+  }
+  branch: "master"
+  config_yaml: "sources/config.yaml"
 }
 
 fonts {

diff --git a/ofl/allerta/upstream_info.md b/ofl/allerta/upstream_info.md
index 147e9478d99b32d78e114c888b33a4a4937eba1a..753093ea160cc06eaae6a002701f9a44977734fd 100644 (file)
--- a/ofl/allerta/upstream_info.md
+++ b/ofl/allerta/upstream_info.md
@@ -1,52 +1,25 @@
 # Allerta
 
-**Status**: `missing_config`
-**Date**: 2026-02-25
-**Designer**: Matt McInerney
-**License**: OFL
-**METADATA.pb**: `ofl/allerta/METADATA.pb`
+Source modernized 2026-07: the FontForge `.sfd` sources were converted to Glyphs (`.glyphs`) and now build with the Google Fonts Rust pipeline (gftools-builder3 + fontc). The repository, commit and config are recorded in the `source { }` block of METADATA.pb and are not duplicated here.
 
-## Data
+## Initial state
 
-| Field | Value |
-|-------|-------|
-| Repository URL | https://github.com/librefonts/allerta |
-| Commit | `88a8c57b949cb8224f24815d5d3aa05d4950de69` |
-| Config YAML | — |
-| Branch | `master` |
-| Source types | sfd |
+Google Fonts shipped Allerta (Regular) built from FontForge SFD sources at https://github.com/librefonts/allerta. There was no Glyphs (`.glyphs`) source, and no source that builds with fontc.
 
-## Methodology
+## Actions taken
 
-### Repository URL
-Discovered via google/fonts commit history, PR references, or GitHub search.
+- The canonical FontForge SFD source (`src/Allerta-Regular-TTF.sfd`) was converted to Glyphs with babelfont-rs (upstream commit `219c0bb`).
+- A new Unified Font Repository was created at https://github.com/googlefonts/allerta, building the font with gftools-builder3 + fontc.
+- The build was verified against the shipped binary.
 
-### Commit Hash
-Used HEAD of upstream repository (latest commit at time of onboarding).
-- Commit date: 2014-10-17 13:28:23 +0300
-- Commit message: "update .travis.yml"
+## Final state
 
-### Config YAML
-Not applicable — upstream repo contains only FontForge .sfd sources, which are not compatible with gftools-builder.
+The source now lives at https://github.com/googlefonts/allerta (see METADATA.pb) and builds reproducibly with gftools-builder3 + fontc at strict functional equivalence with the shipped binary.
 
-## Evidence
+## Verification
 
-### METADATA.pb source block
-No source block present in METADATA.pb.
+Identical to the shipped binary on cmap coverage, vertical metrics, usWeightClass, fsSelection/macStyle, GSUB/GPOS feature sets, GDEF classes and advance widths. The grade was FULL, with no accepted differences.
 
-### google/fonts history
-- Last font modification: `90abd17b4f97`
-- Date: 2015-03-07 05:14:52 +0530
-- Subject: "Initial commit"
+## Original repository (dormant)
 
-### Upstream repo cache
-- Cached at: `librefonts/allerta`
-- Commit `88a8c57b949c` verified ✓
-
-## Confidence
-
-**Medium**: URL discovered via research; commit verified in upstream repo
-
-## Notes
-
-SFD-only sources (FontForge format), not gftools-builder compatible
+The original FontForge sources are at https://github.com/librefonts/allerta (`.sfd`), latest at commit `88a8c57b949cb8224f24815d5d3aa05d4950de69`. Preserved for provenance; the new `.glyphs` source supersedes it for building.