v0.2.0

Native GitHub Actions runner for SGI IRIX 6.5.22 and later, MIPS n32.

Requires IRIX 6.5.22+ on an R4000 or later CPU. The binary needs only
libc.so.1, libpthread.so and libm.so, all IRIX base. cert.pem
ships alongside it and is found automatically; no SGUG-RSE needed to
run. git, zip and unzip are needed only for uses: steps.

Stock IRIX tar cannot decompress, so extract with:

gzip -dc irix-actions-runner-*.tar.gz | tar xvf -

Built and tested on IRIX 6.5.30m. Earlier 6.5.x releases and other SGI
models are expected to work and are untested. See BUILD-INFO in the
tarball for exactly what was built and on what.

If the first connection fails, run ./runner selftest: an undisciplined
clock and an expired CA bundle are the two usual causes.

Added

• Live console output. Step output now appears in the UI while the step is
  still running, over the WebSocket at FeedStreamUrl, which is what the
  official runner uses. Best effort: a failed feed is abandoned and the
  uploaded log remains authoritative.
• Logs of any size. Output is streamed in 2 MB blocks to an append blob
  instead of being held whole and sent at step end, so a long build no longer
  grows the runner's memory in step with its own output.

Fixed

• Steps now run under -e, and bash steps under -o pipefail, matching
  GitHub's documented defaults. Only the last command in a multi-line run:
  body used to decide the step's result, so any check followed by another
  command was not a gate.
• A run: body containing ${{ }} is rejected with an explanation instead of
  producing an empty script that was reported as succeeded.
• Secret redaction no longer writes past its buffer for a mask shorter than
  three characters.
• Cancellation and the step deadline were only checked when the output poll
  timed out, so a step printing continuously could not be cancelled and could
  not time out.
• The whole-job log is accumulated as steps run rather than stitched from every
  step's buffer at job end, so a job no longer has to hold all of its output at
  once.
• docs/protocol.md claimed the blob API was the live tailing route. It is
  not; it is the durable log, and the live tail is a separate socket.

Changed

• Unit tests run on Linux for every pull request.
• The binary is pinned to MIPS III explicitly rather than inheriting it from
  the compiler default, and the release asserts it.