Python 2 is EOL at the end of 2019, so don't depend on it anymore.
Remove pychart support, because upstream is dead and there is no python3
version. We were only using it for one graph, and that has been
replaced in osmo-bsc I36b721f895caee9766528e14d854b6aa2a2fac85.
Depends: osmo-bsc I36b721f895caee9766528e14d854b6aa2a2fac85
Related: OS#2819
Change-Id: I57522e57e39682d6d123af4584785d327361e5a3
Don't explicitly depend on python 3, so we don't need to have python 2
*and* python 3 installed to build osmo-gsm-manuals.
The script is short and works fine with either python version.
Related: OS#3899
Change-Id: I8af9b8159f5c7e39b905f85edd1584cb4d5a33ef
Print "unknown" to stdout when unix-time-to-fmt.py was called without
an argument, instead of printing a Python stack trace to stderr. It gets
called that way when building outside of a git folder.
Change-Id: I3ba27cc23543e47cc8a1e494c35cc33f1dc8f297
On FreeBSD, the 'date' command's -d option has a completely different meaning.
Instead, use a small python script to do the date format conversion, which
should be more portable.
As a side effect, we now also use UTC instead of the build server's timezone,
which may be considered a more international choice.
Add build/unix-time-to-fmt.py, call in build/Makefile.asciidoc.inc.
Change-Id: I91a40656184f553ee375216d8ba5c7788fe9990d
Oliver Smith
Neels Hofmeyr