From now, all configuration related to automatic updates should be done
in build.sh scripts.
It requires specifying at least
TERMUX_PKG_AUTO_UPDATE=true
which indicates that package is eligible for automatic updates, and
optionally
TERMUX_PKG_AUTO_UPDATE_TAG_REGEXP="$version_regexp"
which specifies a regular expression used to extract the version part
from Git tag.
After https://github.com/termux/termux-packages/commit/e34ae5da030d,
llvm-config was created before termux_step_get_dependencies, meaning
that it gets overwritten if libllvm is installed.
Fix this by creating llvm-config in a new function
termux_step_override_config_scripts, that is run right after
termux_step_get_dependencies.
All packages that have conffiles, and a gz compressed control.tar.gz,
currently fails to install on arm if the deb is built locally or
downloaded and then installed with `apt install
./foo_1.0_arm.deb`. The error looks like:
$ apt install ./tmp/foo.deb
Reading package lists... Error!
E: Tar checksum failed, archive corrupted
E: Could not read meta data from
/data/data/com.termux/files/home/tmp/foo.deb
E: The package lists or status file could not be parsed or opened.
If the package does not have conffiles, or if xz compression is used,
everything works. Let's change back to xz compression for all new and
updated packages for now to workaround this issue.
Even if `apt install ./foo.deb` fails the deb can still be installed
with `dpkg -i ./foo.deb` (seems dpkg does not do the same checksum
check?).
Currently there is a problem building packages that use *-config
scripts (for example gnupg), we are creating a
/bin/sh->/data/data/com.termux/files/usr/bin/sh symlink so that the
shebang for the scripts can be interpreted, but after
ecd214881a ("build-package: add new arg -c for "continue build"") the
symlink was deleted in termux_step_get_dependencies.
