This lets you skip rebuilds unless the actual json changes.
This is useful for continuos builds that only run if the json
changes, not on any commit to any git source.
Instead of building directly into the app directory we build into a
rofiles-fuse mount of it, which allows us to safely check out the
cache into the app directory using hardlinks (because rofiles-fuse
will not let you modify hardlinked files).
Additionally, every time we commit to the cache we check out all
the new and modified files into the appdir so that we get hardlinks
to the repo for the new files too.
The advantage of having hardlinks to the repo is that we can commit
much more efficient since we don't have to do a full checksum of
the hardlinked files.
There are some issues here:
eu-strip fails due to doing in-place editin
rofiles-fuse is using lots of CPU, unclear if this is faster, needs
measurements
needs testing of how well the fallback works (ie. if fuse is not
working).
rofuse: use kernel caches
rofiles: check out after commit
Use devino cache
Only check out new files from cache after commit
Rebuilding all apps because a minor change in the runtime is way too wasteful
and generated unnecessary app updates, especially since runtimes are supposed
to be API stable.
We add an a --rebuild-on-sdk-change option which you use to disable this feature,
for instance if you're building against an unstable SDK.
Even without -d this shows the whole ref, as well
as the source of the app (user/system) and if it
is a runtime.
This is important now as the default is to show
both user and system and both apps and runtime.
Not being documented makes it hard to know that this actually
takes the url of a flatpakrepo file, as opposed to the other url
key in this file, which takes the url to a remote.
If the bundle contains an origin link we can now install related
things from it, such as locale data.
You can also build the bundle with --runtime-repo=URL, where the url
points to a flatpakrepo file for a repo with runtimes. This works
similar to the RuntimeRepo= feature in flatpakref files.
Currently flatpak-builder downloads the sources for all modules, even if
the --stop-at option prevents them from being built. This commit changes
the behavior so that we don't bother to download the ignored modules.
When an application requires a runtime that is not installed, search
for it and prompt for permissions to install it. Also, update required
runtimes when the app is being updated.
If this is set for a remote we will never automatically look for
dependencies in it. This makes dependency search faster, as we
don't need to search in app-only remotes.
When initializing a build you can initialize the application directory
with the files from another directory, and optionally a set of its
extensions. This allows one to create a "base" application that
can be derived from in multiple forms. A typical example is an application
framework like Electron. The base electron app has all the dependencies
needed to write Electron app, and then your manifest can add the specific
files needed for your application.
An example snipped could look something like:
"base": "org.base.App",
"base-version": "stable",
"base-extensions": ["org.base.app.Locale", "org.base.app.Debug" ],
The --allow-missing-runtimes options will allow flatpak builder to
not abort immediately if the sdk or runtime for the app being built
are missing.
This option will be useless when building anything in the modules
section of the app manifest. The calls to flatpak-build will fail
because of the missing sdk.
However, it may be useful when an application does not require
building anything inside the sandbox, and the application files
will be installed via other means.
Matthias Clasen