Read 2026-10-04
gitlab.com/graphviz/graphviz: technical due diligence, read from its repository
What Borehole read in gitlab.com/graphviz/graphviz's code and history at 8ce3784: its licence, security advisories, releases, review practice, tests, dependencies and operations. Every finding cites the file and line it rests on. The full report also covers the team and asks the questions the code cannot answer.
| Dimension | Rating |
|---|---|
| Architecture & Codebase — including AI provenance | strong |
| Engineering Process & SDLC Maturity | strong |
| Product & Engineering Maturity | strong |
| Security & Reliability Posture | strong |
| Observability & Operations | not assessable |
| Fit with the Acquirer | not assessable |
What the repository says
.gitmodules:1: 2 submodule(s) this survey does not read: windows/dependencies/graphviz-build-utilities, windows/dependencies/libraries
Architecture & Codebase — including AI provenance
stronglib/edgepaint/lab_gamut.c is 10,752 lines, 143× this codebase's median file
adequateThe median source file here is 75 lines. 34 files exceed 1,000 lines, the largest being 10,752. Size is not a defect on its own — some problems genuinely live in one place — but these are where merge conflicts, review fatigue and single-owner knowledge concentrate, and they are the first thing that slows an inheriting engineer down.
lib/edgepaint/lab_gamut.c:1 — 10,752 lines (143× median) |
lib/sparse/color_palette.c:1 — 7,623 lines (101× median) |
lib/common/emit.c:1 — 4,368 lines (58× median) |
lib/common/shapes.c:1 — 4,343 lines (57× median) |
lib/gvpr/compile.c:1 — 2,519 lines (33× median) |
Engineering Process & SDLC Maturity
strongNo finding.
Product & Engineering Maturity
strongEffort is shifting from building to rewriting
adequateDeleted lines per line added rose from 0.13 to 2.21 between the first and second halves of this history. Rework is normal and often healthy, but a rising ratio means an increasing share of the team's time is spent replacing code that already exists rather than building what does not. Whether that is deliberate repayment or churn is a question for the team.
| first half 0.13, second half 2.21 (split 2015-11-10) |
Security & Reliability Posture
strongNo finding.
Observability & Operations
not assessableNot rated: only 4 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.
Fit with the Acquirer
not assessableNot rated: structurally not assessable from a repository.
Read more, or read your own
The full report on gitlab.com/graphviz/graphviz: every dimension, the questions for the room, and the audit log.
Survey a repository: free on public repositories. Private code is read on your own machine by a collector whose source you can read first.