Borehole · Project · free tier
etar-group/etar-calendar
Free reading: not for reliance
e4c805b · 7,365 commits · 1,991 files
Read 2026-11-07

etar-group/etar-calendar: technical due diligence, read from its repository

What Borehole read in etar-group/etar-calendar's code and history at e4c805b: 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.

DimensionRating
Architecture & Codebase — including AI provenancestrong
Engineering Process & SDLC Maturityadequate
Product & Engineering Maturitynot assessable
Security & Reliability Posturestrong
Observability & Operationsnot assessable
Fit with the Acquirernot assessable

What the repository says

  • LICENSE: Relicensed: Apache-2.0 → GPL-3.0 (2020-01-07)

Architecture & Codebase — including AI provenance

strong
01.3

Commit messages are templated rather than written

adequate

37% of commit subjects are exact repeats of another subject, and subject length varies by only 30.3 characters. A log written by someone explaining their reasoning to a future reader does not look like this. The log is therefore weak evidence of intent, whatever the code is like.

Evidence
307× 'Import translations. DO NOT MERGE'
68× 'Import revised translations. DO NOT MERGE'
58× 'Translated using Weblate (Spanish)'
01.6

app/src/main/java/com/android/calendar/DayView.java is 5,140 lines, 26× this codebase's median file

adequate

The median source file here is 197 lines. 4 files exceed 1,970 lines, the largest being 5,140. 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.

Engineering Process & SDLC Maturity

adequate
02.3

Tests cover a thin slice of the codebase

adequate

14 test files against 184 source files (7.6%). This does not measure whether the tests are good, only whether enough of them exist for the codebase to be changed safely by someone who did not write it — which is exactly the situation after an acquisition.

Evidence
14 test files / 184 source files
02.6

Almost no process scaffolding exists in the repository

adequate

Of five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — 1 is present: CI workflows. Branch protection itself is a GitHub setting rather than a file, so this is a reading of proxies and not of the rules themselves. What it does establish is that the process is not written down anywhere a new engineer would find it.

Evidence
1 of 5 markers present across 1,991 tracked files

Product & Engineering Maturity

not assessable

Not rated: only 8 of 19 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.

Security & Reliability Posture

strong
05.60

Relicensed: Apache-2.0 → GPL-3.0 (2020-01-07)

adequate

The root licence changed 1 time(s). The latest terms restrict what users, hosts or a buyer may do in ways the earlier ones did not. Code taken under the old terms stays under them, so both matter in diligence.

Evidence
LICENSE — Apache-2.0 from 2019-03-03
LICENSE — GPL-3.0 from 2020-01-07

Observability & Operations

not assessable

Not rated: only 5 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 assessable

Not rated: structurally not assessable from a repository.

Read more, or read your own

The full report on etar-group/etar-calendar: every dimension, the questions for the room, and the audit log.

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