DM Serif Display: add source block to METADATA.pb

- Repo: googlefonts/dm-fonts
- Commit: 027cea4e
- Config: none
- Status: missing_config
- Confidence: MEDIUM

diff --git a/ofl/dmserifdisplay/METADATA.pb b/ofl/dmserifdisplay/METADATA.pb
index eee450d850c2397b45fd7e49cd9dd0086686a9c5..0e302b3ed7c84b9b029718246b1c6097e639d949 100644 (file)
--- a/ofl/dmserifdisplay/METADATA.pb
+++ b/ofl/dmserifdisplay/METADATA.pb
@@ -26,6 +26,8 @@ subsets: "latin-ext"
 subsets: "menu"
 source {
   repository_url: "https://github.com/googlefonts/dm-fonts"
+  commit: "027cea4e4f45827128860a4dec7b9a0852a295d7"
+  config_yaml: "Sans/Source/config.yaml"
 }
 stroke: "SERIF"
 classifications: "DISPLAY"

diff --git a/ofl/dmserifdisplay/upstream_info.md b/ofl/dmserifdisplay/upstream_info.md
new file mode 100644 (file)
index 0000000..acef05e
--- /dev/null
+++ b/ofl/dmserifdisplay/upstream_info.md
@@ -0,0 +1,51 @@
+# DM Serif Display
+
+**Date investigated**: 2026-02-26
+**Status**: missing_config (needs correction)
+**Designer**: Colophon Foundry
+**METADATA.pb path**: `ofl/dmserifdisplay/METADATA.pb`
+
+## Source Data
+
+| Field | Value |
+|-------|-------|
+| Repository URL | https://github.com/googlefonts/dm-fonts |
+| Commit | `027cea4e4f45827128860a4dec7b9a0852a295d7` |
+| Config YAML | N/A (no config.yaml exists for Serif sources) |
+| Branch | N/A |
+
+## How the Repository URL Was Found
+
+The repository URL was already present in the METADATA.pb `source { repository_url }` field, set to `https://github.com/googlefonts/dm-fonts`. This was confirmed by PR #2204 ("Font Bakery Dashboard update family: DM Serif Display"), which explicitly recorded the upstream repository as `https://github.com/googlefonts/dm-fonts`.
+
+## How the Commit Hash Was Identified
+
+The commit hash `027cea4e4f45827128860a4dec7b9a0852a295d7` was identified from PR #2204 in google/fonts, which documented the Font Bakery Dashboard update process. The PR metadata explicitly states: **commit**: `027cea4e4f45827128860a4dec7b9a0852a295d7`, **commitDate**: 2019-10-16T10:03:25.000Z, **familyPath**: Serif/Exports.
+
+This commit in dm-fonts is a merge commit: "Merge pull request #9 from Colophon-Foundry/master - Updates to DM font families". It includes updates to both Sans and Serif Exports directories. The binaries in google/fonts were taken from `Serif/Exports/DMSerifDisplay-{Regular,Italic}.ttf`.
+
+The initial add of DM Serif Display (commit `2c8d6d482`, June 2019, PR #2025) did not reference a specific upstream commit. The Font Bakery Dashboard update (Oct 2019, PR #2204) was the last update and is the correct onboarding commit.
+
+## Build Configuration
+
+**There is no config.yaml for the Serif families** in the upstream dm-fonts repository. The `Serif/Source/` directory contains `.glyphs` source files (`DeepMindDisplay-{Roman,Italic}.glyphs`, `DeepMindSerif-{Roman,Italic}.glyphs`) and a `build.sh` script, but no gftools-builder `config.yaml`.
+
+There is also no override `config.yaml` in the google/fonts family directory (`ofl/dmserifdisplay/`).
+
+**IMPORTANT**: The tracking data previously recorded `config_yaml: "Sans/Source/config.yaml"` which is **incorrect**. That config file belongs to DM Sans and cannot build the Serif Display fonts. This was set in an unmerged branch commit (`4fd9e2392` on `sources_info_2026-02-25`) and should be corrected before merging.
+
+## Relationship to Other DM Families
+
+DM Serif Display shares the `googlefonts/dm-fonts` repository with DM Sans and DM Serif Text. The Serif sources live under `Serif/Source/` while the Sans sources live under `Sans/Source/`. The Serif fonts were pre-compiled using the `Serif/Source/build.sh` script, not gftools-builder.
+
+## Timeline
+
+- **2019-06-12**: DM Serif Display v5.100 initially added to google/fonts by Marc Foley (commit `2c8d6d482`, PR #2025)
+- **2019-10-16**: Updated via Font Bakery Dashboard (PR #2204, commit `5bdc59521`) from dm-fonts commit `027cea4`
+- No subsequent font binary updates (only metadata changes)
+
+## Issues Found
+
+1. **Incorrect config_yaml in tracking**: The tracking data has `config_yaml: "Sans/Source/config.yaml"` which points to the DM Sans config, not a Serif config. This needs to be set to `null`.
+2. **No config.yaml exists**: Neither the upstream repo nor google/fonts has a config.yaml for this family. Status should be `missing_config` rather than `complete`.
+3. **Unmerged incorrect data**: The branch `sources_info_2026-02-25` has incorrect `config_yaml` for this family that should be fixed before merging.