Fix compiler switches: use /EXE on Windows, --executable elsewhere

[DNSGeek]

PureBasic has no --exe or --run switch. Pass the platform-correct output switch and launch the built executable after a successful compile instead of passing --run. Also auto-detect pbcompilerc.exe (C backend).

Fixes #1

[DNSGeek]

@claude fix the linting issue

[claude]

Claude finished @DNSGeek's task in 49s —— View job

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Lint failure: cause found, but I couldn't fix it

I read "listing" as linting. If you meant something else, let me know.

• Check CI and find the lint failure
• Fix the lint errors: blocked, I don't have permission to run npx/npm
• Commit and push: nothing to push

Why the job fails

The Code Formatting and Linting run (job log) doesn't fail on a lint error. It fails at its final "Commit and push changes" step:

[detached HEAD e2e7629] style: auto-format code with ...
 14 files changed, 16407 insertions(+), 3953 deletions(-)
fatal: You are not currently on a branch.
##[error]Process completed with exit code 128.

1. npx prettier --write reformats 14 files. That's almost all of src/*.ts, package.json, snippets/, syntaxes/, README.md and LICENSE.md, not just this PR's change to src/compilerService.ts.
2. The workflow then tries to commit and git push. But actions/checkout on a pull_request event checks out a merge commit with a detached HEAD, so the push fails.

The markdownlint errors (MD013, MD022, MD060 and others in README.md/LICENSE.md) are printed but don't fail the job. markdownlint is run with || echo.

This would fail on any PR, not just this one.

Why I couldn't fix it

• Formatting the code: the most direct fix is to run Prettier on this branch and commit the result, so CI has nothing left to commit. My npx prettier call was denied, and I won't hand-edit roughly 16k lines of formatter output.
• Fixing the workflow: the real bug is in .github/workflows/formatting.yml, and GitHub App permissions don't let me change files in .github/workflows (FAQ).

How to fix it

Option A: format once locally (fixes this PR)

npx prettier --write "**/*.{ts,tsx,js,jsx,json}"
npx prettier --write "**/*.md"
git commit -am "style: apply prettier" && git push

Or add Bash(npx:*) to my --allowedTools and ask me again, and I'll do it.

Option B: fix the workflow (stops this happening on future PRs). In formatting.yml, either check out the PR branch:

- uses: actions/checkout@v4
  with:
    ref: ${{ github.head_ref }}

or change the push to git push origin HEAD:${{ github.head_ref }}. Pushes from forked PRs will still fail with this change. For those, skip the commit step (if: github.event.pull_request.head.repo.full_name == github.repository) or switch to prettier --check.
• Branch: claude/issue-1-20260930-0310

[agorangetek]

Hi — confirming the diagnosis, plus what I could verify against a real compiler.

Verified on PureBasic 6.41 C backend, macOS (pbcompiler reports PureBasic 6.41 - C Backend (MacOS X - arm64)):

switch	result
--exe	Unknown switch: --exe — reproduces the report
--run	Unknown switch: --run
/EXE	Unknown parameter: /EXE here; slash switches are Windows-only
--executable	accepted, and wrote the executable to the exact path given

So the core of the patch is right: neither --exe nor --run exists, and the output switch has to be per platform.

One change I'd suggest. --executable is not in pbcompiler -h, and the official reference documents the output switch as -o, --output, /OUTPUT <filename>. It works on 6.41 — I checked that it honoured the path — but it's an undocumented alias, so nothing promises it on other versions. -o is the safer value for the non-Windows branch:

const exeSwitch = process.platform === 'win32' ? '/EXE' : '-o';

Worth noting the reference is inconsistent about Windows: the cross-platform table lists /OUTPUT, while the Windows example uses /EXE "C:\Project\project.dll". Both presumably work; I could only test the Unix side, so that branch still wants a run on Windows before merge — the caveat you already flagged.

The failing format check is not this PR. It dies in the final push step: actions/checkout leaves a detached HEAD on pull_request, prettier --write reformats 14 files, then git push fails with fatal: You are not currently on a branch. That happens on any PR here. Fixing it means checking out the head ref (with: ref: ${{ github.head_ref }}), pushing as git push origin HEAD:${{ github.head_ref }}, or dropping the auto-commit for prettier --check.

+1 for the pbcompilerc.exe auto-detect — on Windows arm64 there is no ASM backend, so that's the only compiler an arm64 install has.