piedra: 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/piedra/METADATA.pb b/ofl/piedra/METADATA.pb
index c2b774b3bba813db35645f2dcc36fc7e1b6b698e..88b564ea238d5e584e75913abaf26e2853903fc5 100644 (file)
--- a/ofl/piedra/METADATA.pb
+++ b/ofl/piedra/METADATA.pb
@@ -17,3 +17,7 @@ subsets: "latin"
 subsets: "latin-ext"
 stroke: "SERIF"
 classifications: "DISPLAY"
+source {
+  repository_url: "https://github.com/googlefonts/googlefontdirectory-hg"
+  commit: "52f780bc9d197280a9f430574e179a5f233c56b6"
+}

diff --git a/ofl/piedra/upstream_info.md b/ofl/piedra/upstream_info.md
index f9cbed804c28491f6e30af738061540e187ba541..ae17b17fa0836d1d1993d1ba63a83a66f5f54c6a 100644 (file)
--- a/ofl/piedra/upstream_info.md
+++ b/ofl/piedra/upstream_info.md
@@ -1,14 +1,36 @@
 # Piedra — Source Metadata Investigation
+
 **Model**: Claude Opus 4.6
 **Date**: 2026-03-12
 
 ## Source Repository
-- **URL**: No source block present
-- **Commit**: N/A
-- **Status**: absent
 
-## What Was Done
-The existing source metadata was reviewed. No source block was found in METADATA.pb.
+| Field | Value |
+|-------|-------|
+| **Repository** | [googlefontdirectory-hg](https://github.com/googlefonts/googlefontdirectory-hg) |
+| **Commit** | `52f780bc9d197280a9f430574e179a5f233c56b6` |
+| **Source path** | `ofl/piedra/src/` |
+| **Buildable** | No — legacy formats only (.vfb/.sfd) |
+
+The font sources are in the **googlefontdirectory-hg** monorepo, a git mirror of the
+original Google Code Mercurial repository (`code.google.com/p/googlefontdirectory`)
+that was the canonical host for Google Fonts from 2010 to 2013.
+
+### Source files
+
+- **.vfb** (FontLab, proprietary): Piedra-Regular-OTF.vfb
+- **.sfd** (FontForge): Piedra-Regular-TTF.sfd
+- **Compiled binary** (not a design source): Piedra-Regular.otf
+- **Metadata**: METADATA_comments.txt
+
+The design sources are VFB (FontLab, proprietary) and SFD (FontForge) format files. Neither format is buildable with gftools-builder. No modern buildable sources (.glyphs, .ufo, .designspace) are available.
+
+## Investigation
 
-## Notes
 Designer: Sudtipos (Angel Koziupa, Alejandro Paul). Script: Latin. Category: DISPLAY (serif stroke).
+
+No source block was found in METADATA.pb. No canonical upstream GitHub repository was identified.
+
+## Conclusion
+
+No canonical upstream repository was found beyond the legacy googlefontdirectory-hg archive. Sources exist as VFB/SFD files, which are not buildable with gftools-builder. No METADATA.pb changes were made.