I have a working setup for project using DX2010, however i am not running installer (which always failed for me during beta, maybe it's fixed nowadays) but extracting only parts required for build. Looking at link you provided, this is exactly what guide recommends :)
First, DXSDK_DIR variable is set using ::set-env "command". Variable most likely should point to directory outside default location, which can be overwritten if repository is checked out after preparing DX files.
- name: Config
run: echo ::set-env name=DXSDK_DIR::$HOME/cache/
shell: bash
I didn't want to include DX files in repository, so they had to be downloaded when workflow is running. To avoid doing that over and over again cache action is used to keep files between builds.
- name: Cache
id: cache
uses: actions/cache@v1
with:
path: ~/cache
key: cache
And finally, downloading and extracting DX2010. This step will run only if cache wasn't created previously or current workflow cannot create/restore caches (like on: schedule or on: repository_dispatch).
- name: Cache create
if: steps.cache.outputs.cache-hit != 'true'
run: |
curl -L https://download.microsoft.com/download/a/e/7/ae743f1f-632b-4809-87a9-aa1bb3458e31/DXSDK_Jun10.exe -o _DX2010_.exe
7z x _DX2010_.exe DXSDK/Include -o_DX2010_
7z x _DX2010_.exe DXSDK/Lib/x86 -o_DX2010_
mv _DX2010_/DXSDK $HOME/cache
rm -fR _DX*_ _DX*_.exe
shell: bash
Aaand that's it, project is ready for compilation.