Running one directory (EADS) had already produced four bugs, so all of them
were run. 11 failed. Every one was real -- either in the coursework or in the
harness I had just written -- and the split was roughly even.
Coursework bugs:
- 15 .tex files use Polish ogonek characters with no fontenc, so pdflatex
dies with "Command \k unavailable in encoding OT1". Fixed where it was
actually needed, not blanket-applied.
- BSS had \documentclass{article}[12pt] -- options after the class name,
where they are not options at all.
- SDM's beamer deck had a stray } on an \item, which took out the frame.
- EOOP/Various/currency included "currency2.hpp"; the file is currency.hpp.
- ECRYPT_PROJECT had the SAME stdlib-shadowing bug as ECOTE: a package named
code/. Renamed to sieve/, and its 99 tests now run. With ECOTE's 26 that
is 125 tests that could not execute at all before today.
Harness bugs, which the run is what exposed:
- COURSE_ENTRY pointed at directories for PORR and ECRYPT_PROJECT, so python
looked for __main__.py and reported the wrong problem.
- main.py was auto-picked via find's first result. EARIN has six labs and
six main.py files, so that ran an arbitrary lab and called it the course.
Now only auto-picked when exactly one exists.
- Only the first requirements.txt was installed, which is why EARIN still
died on gymnasium after a venv was created for it. All of them now.
- The notebook probe accepted jupyter being on PATH. This machine's jupyter
is a pipx shim whose interpreter is gone, so "runnable" was a lie; it now
invokes jupyter --version and PBAD/twm_4 report blocked, honestly.
- Nothing ran a course's tests. Where a suite exists it is now the check,
which matters most for ECRYPT_PROJECT, whose program prompts on stdin and
cannot be run headlessly at all.
- Which directory pytest runs from is course-specific and unguessable, so
stubs pass --test-dir: ECOTE needs program/ for imports, ECRYPT_PROJECT
needs sieve/ because its fixtures open a CSV by relative path.
gates/known-incomplete.txt records the one file that genuinely cannot build:
EOOP/Various/set/set.cpp includes set.hpp, which `git log --all` shows has
never existed here. The course supplied it and only the .cpp was submitted.
That is a factual record with a stated check, not a lint allowlist -- and
fabricating the header would be inventing coursework.
Status is now 36 runnable / 5 no-code / 3 blocked.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
Two invariants had been established by hand and left ungated, which is the
"a remedy that only works if someone remembers" pattern:
- scripts/check_ignore_consistency.sh fails the commit if any TRACKED file
is also gitignored. .binary-allowlist used to *instruct* the reader to
re-run that check; now it is enforced. Verified both ways -- passes on the
tree, and fails when an ignored file is force-added.
DOCS-runnability.md now really has two columns. Each environment writes only
its own gates/runnability-<env>.tsv and the doc renders from both, so a CI run
cannot clobber the local results. The ci tsv is gitignored: committing a copy
generated here would label this machine's capabilities as the runner's.
Rendering it surfaced a classic bug -- awk's NR==FNR idiom silently swallows
the SECOND file when the first is empty, so the table came out with a header
and no rows. It compares FILENAME instead.
runnability.yml deliberately does NOT diff against a committed baseline. A
status is a property of the machine, so `runnable` locally and `blocked` on a
runner is correct rather than drift, and diffing would make the workflow red
by construction. It fails on `error` instead -- a runner that crashes or
reports an unknown kind.
Then five more courses were actually run, because EADS alone had produced four
real bugs and one sample proves nothing:
- ECOAR and EPFU build (nasm + 32-bit gcc, and gcc respectively).
- ECOTE's 17 test modules could not run AT ALL. Its package is named `code/`,
which shadows the standard library: pytest's debugging plugin imports pdb,
pdb imports code, and it got this directory instead, so the suite died
with an INTERNALERROR before collecting a single test. Renamed to
translator/ with all 17 imports updated -- 26 tests now pass.
- A LaTeX report builds. That one exposed a hazard rather than a bug:
latexmk wrote its PDF beside the source, and in a course where the built
name matches the submitted one it would have silently overwritten a
tracked deliverable. Both the LaTeX and C++ runners now build into a
gitignored build/, and rebuilding ECOGR leaves `git status` empty.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
All 44 directories now probe: 38 runnable, 5 no-code, 1 blocked (ENUME needs
MATLAB or Octave, neither of which is on this machine).
The runners are stubs over one shared scripts/course_lib.sh rather than 44
copies of the logic, for the same reason the gates live in ~/utils. A stub
passes its kind as ARGUMENTS -- course_main --kind python --entry ... -- "$@"
-- rather than setting globals, because globals a linter cannot see being read
mean SC2034 on every one of them, and the only cure would be 44 disables.
Fixed along the way:
- Generating the stubs overwrote Programming/PSD/run.sh, the original
coursework runner. Restored, and given a --probe early exit instead so it
is otherwise untouched: it installs packages with sudo and starts Kafka,
which is exactly what a probe must not trigger.
- The probe guard only recognised runners containing the literal --probe, so
the new stubs (which delegate to the library) all read unprobed. It now
also accepts delegation to course_lib.sh.
- Blocked probes reported "unknown" because _require_any prints the tool it
found, so probes redirected its stdout -- swallowing the failure reason
too. Split into _probe_any, and ENUME now says exactly what it needs.
- shellcheck runs with -x so it follows the sourced library; without it every
stub reports SC1091 and the only alternative is a per-file disable. The
library itself carries `# shellcheck shell=bash` because it has no shebang
on purpose -- it is sourced, never executed.
Then EADS was actually run, and three of its six C++ files did not compile:
- lab3.cpp: copyDictionary was declared taking Dictionary* but its body used
Node members, and the copy constructor called copyTree(), which does not
exist. The copy also dropped key and balanceFactor. Now compiles AND runs,
printing its AVL tests.
- MidTerm/task2.cpp: a const mismatch between declaration and definition, a
stray semicolon before a function body, findNode calling a Tree method on
a treeNode*, and a while loop that never advanced. sumNodeSub also had no
base case -- unreachable before, because the const mismatch meant its body
was never compiled.
These compiled years ago because older GCC did not diagnose uninstantiated
template bodies. Fragments with no main() are now type-checked with -c rather
than linked, since two of these files are exam answers, not programs.
Binaries go to a gitignored build/ -- an extensionless executable dropped next
to its source is not something .gitignore catches by name.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
`pre-commit run --all-files` is green. The config only carries hooks whose
subject is already clean, so it stays green at every commit -- file-length,
ruff/mypy and dependency-freshness are listed as blocked, each on its own
cleanup, and the file-REWRITING hooks (trailing-whitespace, end-of-file-fixer)
are held back for their own reviewed commit.
Turning it on found four real things:
1. A committed private key: ERSMS-project/nginx/ssl/nginx.key. It is a
self-signed CN=localhost cert that had already expired (notAfter
2025-06-16), so the risk is nil -- but it is regenerable in one openssl
call, so it is replaced by generate-cert.sh rather than excluded from the
hook. The script says plainly that removing it from HEAD does NOT
unpublish it: history is deliberately not rewritten, which is acceptable
only because nothing ever trusted this key.
2. Four files with unresolved merge conflict markers committed, left over
from the subtree merges. EARIN/.gitignore and .vscode/extensions.json are
resolved as the union of both sides. The two Unity folder .meta files each
had two candidate GUIDs; grepping showed neither is referenced anywhere
(folder GUIDs rarely are), so either is safe and the HEAD side is kept --
an arbitrary choice, but a checked one rather than a guess.
3. 62 shellcheck findings across 11 scripts, all fixed, no disables added.
The interesting pattern was `cd X; cmd &; PID=$!; cd ..`, which trips both
SC2164 and SC2103 and cannot use a plain subshell without losing the PID.
`( cd X && exec cmd ) &` keeps the directory, the PID and the semantics.
EOPSY lab1's submitted solution was verified by RUNNING it afterwards:
a->A, B->b, foldera->FOLDERA, FOLDERB->folderb, exactly as before.
4. check-json failing on 11 files, which was the wrong parser rather than a
defect -- tsconfig*.json and .vscode/*.json are JSONC, where TypeScript
and VS Code both allow comments. Those two path classes are excluded and
every other .json is still checked. Excluding them is what surfaced the
merge conflict in (2) as the one genuine failure.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
Untracked (--cached, so they stay on disk): 76 LaTeX artifacts, 7 .xdv XeTeX
intermediates, 18 -eps-converted-to.pdf from epstopdf, 32 files of .NET
obj/Debug/net6.0 output including three copies of lab2.dll, 16 .class/.o, the
9 MB Nx cache with its native .node, and an entire committed Python
virtualenv at ECOTE/program/ecote (python 3.10.10, 18 files).
The existing 407-line LaTeX .gitignore was NOT unused as I first assumed --
it already covered *.aux and *.class, and the artifacts simply predate it. So
this appends the categories it missed (*.o, obj/, .venv/, .nx/, target/)
rather than rewriting something that was working.
The second half is the more interesting bug. Auditing with
git ls-files | git check-ignore --stdin --no-index
found 130 files that were tracked AND ignored. That combination fails
silently: `git add` on such a file is not an error, the edit just never
lands. Causes were dist/ swallowing the vendored jQuery/Bootstrap bundle,
.vscode/ and .idea/, and -- the good one -- the LaTeX template's man-page
patterns *.[1-9] and *.[1-9][0-9] matching EPFU's date-named report
directories, so doc/21.11/ read as a man page section and took report.pdf
and seven screenshots with it.
32 of those 130 turned out to be more build output and were untracked too;
the rest got targeted ! overrides. The first attempt used a blanket
!NotProgramming/EMISY/** which re-enabled that course's own LaTeX artifacts,
so it is narrowed to the *.1 schematic exports that actually needed it.
TRAK's nested .gitignore excluded the .vscode DIRECTORY, which stops git
descending, so no root-level ! can reach inside -- that one had to be fixed
at its source.
Both invariants now verified: 0 tracked files ignored, and 0 of the 189
untracked artifacts leaked back into view.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
