Cantata One: add source block to METADATA.pb

- Repo: librefonts/cantataone
- Commit: 947c3dd6
- Config: none
- Status: missing_config
- Confidence: HIGH

diff --git a/ofl/cantataone/METADATA.pb b/ofl/cantataone/METADATA.pb
index 9857c413498ba0d2eb12a1bb9eb379f4e9482aba..aecc034b6407e708a3ef7729756b80d97a4f1a10 100644 (file)
--- a/ofl/cantataone/METADATA.pb
+++ b/ofl/cantataone/METADATA.pb
@@ -15,3 +15,7 @@ fonts {
 subsets: "menu"
 subsets: "latin"
 subsets: "latin-ext"
+source {
+  repository_url: "https://github.com/librefonts/cantataone"
+  commit: "947c3dd6e969867a02166335a27c48c0a7f9123d"
+}

diff --git a/ofl/cantataone/upstream_info.md b/ofl/cantataone/upstream_info.md
new file mode 100644 (file)
index 0000000..e06bf18
--- /dev/null
+++ b/ofl/cantataone/upstream_info.md
@@ -0,0 +1,74 @@
+# Cantata One
+
+**Date investigated**: 2026-02-27
+**Status**: missing_config
+**Designer**: Joana Correia (design), Eben Sorkin (mastering)
+**METADATA.pb path**: `ofl/cantataone/METADATA.pb`
+
+## Source Data
+
+| Field | Value |
+|-------|-------|
+| Repository URL | https://github.com/librefonts/cantataone |
+| Commit | `947c3dd6e969867a02166335a27c48c0a7f9123d` |
+| Config YAML | -- |
+| Branch | master |
+
+## How the Repository URL Was Found
+
+The repository URL `https://github.com/librefonts/cantataone` was already recorded in the tracking file. Verification confirms:
+
+- The GitHub repo returns HTTP 200 and is accessible.
+- The repo was created on 2014-07-16 and last pushed on 2014-10-17.
+- The repo contains matching source files (SFD, VFB) and the same FONTLOG.txt, DESCRIPTION.en_us.html, and OFL.txt files found in `ofl/cantataone/` in google/fonts.
+- The librefonts organization hosts many Google Fonts family repos in a decomposed TTX format used by the fontc_crater_cache system.
+
+The font was originally hosted on Google Code (referenced in the DESCRIPTION.en_us.html: "Source files are available from Google Code") before being migrated to the librefonts GitHub organization.
+
+## How the Commit Hash Was Identified
+
+The upstream repository contains exactly **one commit**: `947c3dd6e969867a02166335a27c48c0a7f9123d`.
+
+- **Commit date**: 2014-10-17 13:32:04 +0300
+- **Author**: hash3g <hash.3g@gmail.com>
+- **Message**: "update .travis.yml"
+- Despite the commit message referencing only `.travis.yml`, this is the initial (and only) commit that created the entire repository with all files.
+
+Since there is only a single commit, it is unambiguously the correct reference point. The font binary in google/fonts was part of the initial google/fonts repository commit (`90abd17b4`, dated 2015-03-07) and has never been updated since. The font was added to Google Fonts on 2012-02-29 (per METADATA.pb `date_added`), predating the GitHub repo creation (2014-07-16), indicating the original source was on Google Code.
+
+## How Config YAML Was Resolved
+
+No `config.yaml` exists in the upstream repository, and no override `config.yaml` exists in the google/fonts family directory (`ofl/cantataone/`).
+
+The upstream repo contains only legacy source formats:
+- `src/CantataOne-Regular.vfb` -- FontLab VFB (original source with contour overlaps)
+- `src/CantataOne-Regular-OTF.sfd` -- FontForge SFD (merged contours, OTF-targeted)
+- `src/CantataOne-Regular-TTF.sfd` -- FontForge SFD (TrueType outlines with hinting)
+
+These formats are **not compatible with gftools-builder**. A config.yaml cannot be meaningfully created because gftools-builder requires `.glyphs`, `.ufo`, or `.designspace` source files. The sources would need to be converted to a modern format before a config.yaml could be useful.
+
+## Verification
+
+- Commit exists in upstream repo: **Yes**
+- Commit date: 2014-10-17 13:32:04 +0300
+- Commit message: "update .travis.yml"
+- Source files at commit:
+  - `src/CantataOne-Regular.vfb` (FontLab binary)
+  - `src/CantataOne-Regular-OTF.sfd` (FontForge Spline Font Database)
+  - `src/CantataOne-Regular-TTF.sfd` (FontForge Spline Font Database)
+  - `src/CantataOne-Regular.otf.*` (decomposed OTF TTX tables)
+  - `CantataOne-Regular.ttf.*` (decomposed TTF TTX tables)
+  - `.travis.yml` (fontbakery CI config)
+  - `FONTLOG.txt`, `DESCRIPTION.en_us.html`, `OFL.txt`, `METADATA.json`
+
+## Additional Notes
+
+- The font was designed by Joana Maria Correia da Silva and mastered by Eben Sorkin (Sorkin Type Co).
+- Version 1.002 is the latest, with hinting added via TTFAutohint v0.8 (per FONTLOG.txt).
+- The `.travis.yml` references fontbakery-build.py and fontbakery-report.py, vintage CI tooling from 2014.
+- The METADATA.pb in google/fonts has no `source { }` block.
+- The font has never been updated in google/fonts since the initial repository commit.
+
+## Confidence
+
+**HIGH**: The upstream repository has a single commit, making identification unambiguous. The repository URL is confirmed accessible and contains matching source files. The status is "missing_config" because the sources are in legacy formats (SFD/VFB) that are not compatible with gftools-builder, so no config.yaml can be created without first converting the sources to a modern format.