entrypoint: run setup.sh if existing

To save bandwidth, we don't ship daily Docker containers containing
ImageBuilder/SDK anymore but instead provide a setup.sh script,
downloading the things on demand. This saves a ton of GBs bandwidth and
caching is not reasonable for daily builds anyway.

If the setup.sh is found, run it. Stable builds aka any tagged release
contains the actual SDK/ImageBuilder, no need to run it there.

Signed-off-by: Paul Spooren <[email protected]>

Group secondary log lines to make build log easier to read

Signed-off-by: Jeffery To <[email protected]>

entrypoint: don't use absolute path

The base path of the imagebuilder may change. Just use whatever is set
in WORKDIR of the Dockerfile.

Signed-off-by: Paul Spooren <[email protected]>

entrypoint: don't use absolute path

The base path of the imagebuilder may change. Just use whatever is set
in WORKDIR of the Dockerfile.

Signed-off-by: Paul Spooren <[email protected]>

action: replace `set-output` command with environment file

The `set-output` command is deprecated and will be disabled soon.

Signed-off-by: Tianling Shen <[email protected]>

Add ARTIFACTS_DIR and FEED_DIR environment variables

These variables allow the calling workflow to specify where to find
package makefiles and where to store artifacts, because the default
GITHUB_WORKSPACE environment variable cannot be overridden.

Signed-off-by: Jeffery To <[email protected]>

Don't build packages as root

Signed-off-by: Jeffery To <[email protected]>

Fix bug: docker build didn't use CONTAINER arg

Fix feeds.conf

d29e7cc introduced a number of issues:

* The src-link line for $GITHUB_WORKSPACE in feeds.conf is overridden.

* The base feed is missing.

* Any branch/tag/commit information in feeds.conf.default is omitted,
  i.e. each feed's master branch is always used.

This fixes all of these issues.

Fixes: d29e7cc ("Use feeds from GH mirror for GH actions")
Signed-off-by: Jeffery To <[email protected]>

Fix feeds.conf

d29e7cc introduced a number of issues:

* The src-link line for $GITHUB_WORKSPACE in feeds.conf is overridden.

* The base feed is missing.

* Any branch/tag/commit information in feeds.conf.default is omitted,
  i.e. each feed's master branch is always used.

This fixes all of these issues.

Fixes: d29e7cc ("Use feeds from GH mirror for GH actions")
Signed-off-by: Jeffery To <[email protected]>