Doppio One: add source block to METADATA.pb

- Repo: librefonts/doppioone
- Commit: 14bdd2e7 (only commit in repo)
- Config: none (SFD-only sources)
- Status: missing_config
- Confidence: MEDIUM

diff --git a/ofl/doppioone/METADATA.pb b/ofl/doppioone/METADATA.pb
index b5eb8059637cbe8f61c670b907345cf59074c213..3cea479b9c114ecc0f230e2d13986facea22eb85 100644 (file)
--- a/ofl/doppioone/METADATA.pb
+++ b/ofl/doppioone/METADATA.pb
@@ -3,6 +3,11 @@ designer: "Szymon Celej"
 license: "OFL"
 category: "SANS_SERIF"
 date_added: "2012-02-22"
+source {
+  repository_url: "https://github.com/librefonts/doppioone"
+  commit: "14bdd2e78b5b8e4f5bc5a39e5f1b02d398883a99"
+}
+
 fonts {
   name: "Doppio One"
   style: "normal"

diff --git a/ofl/doppioone/upstream_info.md b/ofl/doppioone/upstream_info.md
new file mode 100644 (file)
index 0000000..2364edc
--- /dev/null
+++ b/ofl/doppioone/upstream_info.md
@@ -0,0 +1,45 @@
+# Doppio One
+
+## Summary
+
+Doppio One is a sans-serif font by Szymon Celej, distributed by Sorkin Type Co. The upstream repository contains only SFD (FontForge) sources, which are not compatible with gftools-builder.
+
+## Key Findings
+
+| Field | Value |
+|-------|-------|
+| **Family Name** | Doppio One |
+| **Designer** | Szymon Celej |
+| **License** | OFL |
+| **Date Added** | 2012-02-22 |
+| **Repository URL** | https://github.com/librefonts/doppioone |
+| **Commit Hash** | `14bdd2e78b5b8e4f5bc5a39e5f1b02d398883a99` |
+| **Config YAML** | None (SFD-only sources) |
+| **Status** | missing_config |
+
+## Investigation Details
+
+### Onboarding History
+
+Doppio One was added to Google Fonts in the initial commit (`90abd17b4`) by Dave Crossland on 2015-03-07. The font binary has only been modified once since, in a deploy commit (`76adaf1d2`).
+
+A source block with repository_url and commit hash is being added via a pending PR on the `sources_info_2026-02-25` branch (commit `9a14639f3`).
+
+### Upstream Repository
+
+The upstream repo at https://github.com/librefonts/doppioone contains:
+- `src/DoppioOne-Regular-TTF.sfd` - FontForge SFD source (TrueType)
+- `src/DoppioOne-Regular-OTF.sfd` - FontForge SFD source (OpenType)
+- `src/DoppioOne-Regular.vfb` - FontLab VFB source (proprietary format)
+- TTX dumps of the compiled font
+- No `.glyphs`, `.ufo`, or `.designspace` files
+
+The repo has a single commit (`14bdd2e`, "update .travis.yml") visible in the shallow clone. The remote URL is https://github.com/librefonts/doppioone.
+
+### Config YAML
+
+No config.yaml exists in either the upstream repository or as an override in the google/fonts family directory. The SFD source format is not supported by gftools-builder, so a config.yaml cannot be created without source format conversion.
+
+## Conclusion
+
+Doppio One has a known upstream repository with correct commit hash, but the sources are in SFD (FontForge) format only. A config.yaml cannot be created without first converting the sources to a gftools-builder compatible format (UFO, .glyphs, or .designspace). The status remains `missing_config` with the note that this is an SFD-only repository.