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The Android source repositories are quite chaotic. They often include a mix
of things under arbitrary umbrellas. For example, there are parts of this
particular repository that will only ever be built when building the complete
Android OS (aka "target"), other parts that are only built as part of the SDK
to support building Android apps (aka "host"), and other parts that are used
both in the SDK and the Android OS. Most of the source code in this particular
repostory will never be built or included on Debian because it is only used in
the Android OS.
It is possible to see which sections will be built for what by looking at the
Android.mk files. The parts that are meant for the "host" system, in this
case Debian, will have lines like this in it:
include $(BUILD_HOST_EXECUTABLE)
include $(BUILD_HOST_JAVA_LIBRARY)
include $(BUILD_HOST_SHARED_LIBRARY)
include $(BUILD_HOST_STATIC_LIBRARY)
The build targets that are only for Android OS builds instead have this:
include $(BUILD_EXECUTABLE)
include $(BUILD_JAVA_LIBRARY)
include $(BUILD_SHARED_LIBRARY)
include $(BUILD_STATIC_LIBRARY)
A given chunk of code that is built both for "host" will have both of these
lines included in the Android.mk file.
Structure of the package's git repository
-----------------------------------------
The source code has been excerpted form the git repository
https://android.googlesource.com/platform/build
The Android project does not release tarballs of their core software. This
package source repo is configured following git-buildpackage's manual, under
"When upstream uses GIT/No upstream tarballs":
* http://honk.sigxcpu.org/projects/git-buildpackage/manual-html/gbp.import.html#GBP.IMPORT.UPSTREAM-GIT
* file:///usr/share/doc/git-buildpackage/manual-html/gbp.import.html#GBP.IMPORT.UPSTREAM-GIT
If you want to update the source git repo for this package to a newer release,
then fetch the new commits from the upstream git repo:
git remote add upstream https://android.googlesource.com/platform/build
git fetch upstream
debian/gbp.conf is set up to use upstream's release branches and build
tarballs from there. There are some files that need to be removed from the
source tarball, they are removed in commits to the 'upstream' branch, since
the source tarball is generated directly from that. The upstream tags and
branches are a confusing mess of things, so this package uses debian-style
upstream/NO tags as the canonical source marker. These tags must be generated
by a human, since Android does not provide a rational tagging scheme based on
their public version numbers of the Android SDK and related packages.
Omitted files
-------------
tools/droiddoc/templates-pdk/assets/jquery-resizable.min.js
tools/droiddoc/templates-pdk/assets/prettify.js
tools/droiddoc/templates-sdk/assets/js/global-libraries-combined.js
tools/droiddoc/templates-sdk/assets/js/prettify.js
tools/droiddoc/templates-sdk/assets/scroller/jquery.jscrollpane.min.js
tools/droiddoc/templates-sdk/assets/scroller/jquery.mousewheel.min.js
These are minimized .js files, so they are not the same as the original source
code. They were removed in a commit in the 'upstream' branch so that they do
not get included in the source tarball that is generated from this repo.
-- Hans-Christoph Steiner <hans@eds.org>, Thu, 18 Sep 2014 20:01:52 -0400
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