sofia: add source metadata from googlefontdirectory-hg

Repo: https://github.com/googlefonts/googlefontdirectory-hg
Commit: 52f780bc9d197280a9f430574e179a5f233c56b6
source block added to METADATA.pb

Assisted by an AI agent (Claude Opus 4.6)

diff --git a/ofl/sofia/METADATA.pb b/ofl/sofia/METADATA.pb
index 918c617edbcb40cdcad1338c203db0c2f25e49a7..78fce9c3967a8b0419fc6d189c4c9b7022d14c6d 100644 (file)
--- a/ofl/sofia/METADATA.pb
+++ b/ofl/sofia/METADATA.pb
@@ -15,3 +15,7 @@ fonts {
 subsets: "menu"
 subsets: "latin"
 subsets: "latin-ext"
+source {
+  repository_url: "https://github.com/googlefonts/googlefontdirectory-hg"
+  commit: "52f780bc9d197280a9f430574e179a5f233c56b6"
+}

diff --git a/ofl/sofia/upstream_info.md b/ofl/sofia/upstream_info.md
index 289f1c6fc769b468913c73fae2bd97055473fc8c..774f9bc887011d1e2151087d1c5a3c5a4bee8723 100644 (file)
--- a/ofl/sofia/upstream_info.md
+++ b/ofl/sofia/upstream_info.md
@@ -1,13 +1,25 @@
-# Sofia — Upstream Investigation
+# Sofia -- Upstream Source Investigation
 
 **Model**: Claude Opus 4.6
-**Date**: 2026-03-12
-**Investigator**: AI agent (Claude) under guidance of @felipesanches
 
-## Summary
+## Source Repository
 
-No canonical upstream repository with UFO or Glyphs source files was found for
-the Sofia font.
+Design sources were found in the **googlefontdirectory-hg** archive (Google Font Directory, Mercurial-era).
+
+- **Repository**: googlefontdirectory-hg
+- **Commit**: `52f780bc9d197280a9f430574e179a5f233c56b6`
+- **Source path**: `sofia/src/`
+
+## Source Files
+
+The source directory contains: 1 VFB file (FontLab, proprietary format); 1 compiled binary (OTF/TTF, not design sources).
+
+The VFB format is proprietary (FontLab) and cannot be built with gftools-builder. These sources are **not directly buildable** with the current open-source pipeline.
+
+### Key source files
+
+- `Sofia-Regular-OTF.vfb` (VFB, proprietary)
+- `Sofia-Regular.otf` (compiled binary)
 
 ## Research
 
@@ -21,10 +33,6 @@ A separate unrelated typeface called "Sofia Sans" exists on GitHub at
 `lettersoup/Sofia-Sans`, but this is a different typeface and not related to
 the LatinoType Sofia font on Google Fonts.
 
-## Decision
-
-No `source` block was added to `METADATA.pb`. The font's source files did not
-appear to be publicly available in a format suitable for the source metadata.
 
 ## Notes