"datasette publish cloudrun" cannot publish files with spaces in their name

Got this error:

Step 6/9 : RUN datasette inspect fixtures.db extra database.db --inspect-file inspect-data.json
 ---> Running in db9da0068592
Usage: datasette inspect [OPTIONS] [FILES]...
Try 'datasette inspect --help' for help.

Error: Invalid value for '[FILES]...': Path 'extra' does not exist.
The command '/bin/sh -c datasette inspect fixtures.db extra database.db --inspect-file inspect-data.json' returned a non-zero code: 2
ERROR
ERROR: build step 0 "gcr.io/cloud-builders/docker" failed: step exited with non-zero status: 2

While working on the demo for #1232, using this deploy command:

GITHUB_SHA=crossdb datasette publish cloudrun fixtures.db 'extra database.db' \
            -m fixtures.json \
            --plugins-dir=plugins \
            --branch=$GITHUB_SHA \
            --version-note=$GITHUB_SHA \
            --extra-options="--setting template_debug 1 --crossdb" \
            --install=pysqlite3-binary \
            --service=datasette-latest-crossdb

simonw / datasette

"datasette publish cloudrun" cannot publish files with spaces in their name #1233