There are so many possible installation paths for Python modules, it has
been very hard to even find and test them all. This adds a fallback option
if the examples dir cannot be found. A repo can work without an icon or
the example config.py.
This removes the fake assumption that the icon can be a full path in the
config.py. While the path was being properly passed through to the index
file, the file was never copied properly into place nor rsynced to the web
server.
common.set_FDroidPopen_env() is used to call git and other tools that
are not part of the Android SDK nor require Java, so the items that
are being set from the config are optional. This lets plugins do
quite a bit without ever setting up a config.
The .txt format was the last place where the lowercase "builds" was used,
this converts references everywhere to be "Builds". This makes it possible
to load metadata YAML files with any YAML parser, then have it possible to
use fdroidserver methods on that data, like metadata.write_metadata().
The test files in tests/metadata/dump/*.yaml were manually edited by cutting
the builds: block and putting it the sort order for Builds: so the contents
should be unchanged.
```
sed -i \
-e 's/app\.builds/app.get('Builds', \[\])/g' \
-e "s/app\.get(Builds, \[\]) =/app\['Builds'] =/g" \
-e "s/app\.get(Builds, \[\]) =/app\['Builds'] =/g" \
-e "s/app\.get(Builds, \[\])/app.get('Builds', \[\])/g" \
-e "s/app\.get('Builds', \[\])\.append/app\['Builds'\].append/g" \
-e "s/app\['builds'\]/app.get('Builds', [])/g" \
*/*.*
```
Ideally, an fdroid repo should be running from a clean git repo, so that
all changes are tracked in git. This change is useful in seeing which
changes and/or files are not in git. If there are modified files, the
dirty flag will be set, so this info can help debugging that.
test_sdk_exists() succeeds on an empty directory so it does not give any
new information. Contrary, test_sdk_exists() succeeds on an empty
directory, so find_sdk_tools_cmd() returned None even though the tools
where not found, before.
Back when fdroidserver was built around aapt, that was needed to
guarantee that a compatible version of aapt was used. Now, aapt is
only optionally used for getting the APK ID, so this was just
complicating maintenance.
None of the config options in config.py require Python code. YAML is a
common config data format, and it is also used for build metadata. It is
also much safer to use since it can be pure data, without anything
executable in it. This also reduces the attack surface of the fdroid
process by eliminating a guaranteed place to write to get code executed.
With config.py, any exploit that can get local write access can turn that
into execute access by writing to the config.py, then cleaning up after
itself once it has what it needs. Switching to YAML removes that vector
entirely.
Also, this removes the config_file argument. It is not used in either
fdroidserver or repomaker. Also, it probably wouldn't work since so
much of the code assumes that the current working dir is the root of the
repo.
