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DEV_NOTES.txt
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DEV_NOTES.txt
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checklist for doing a release:
1. Check weewx.conf for local changes. In particular, check to make sure:
1. debug=0 in weewx.conf
2. Make sure the version is correct
1. modify pyproject.toml
2. make version
3. Make sure all changes have been logged
1. doc_src/changes.md
2. doc_src/upgrade.md
3. make deb-changelog
4. make redhat-changelog
5. make suse-changelog
4. Build the documentation
1. make build-docs
5. Create the packages
1. make pypi-package
2. make debian-package
3. make redhat-package
4. make suse-package
6. Check of each installation method
1. do a git install + upgrade
2. do a pip install + upgrade
3. do a debian install + upgrade
4. do a redhat install + upgrade
7. Commit and tag
1. git commit -m "Version X.Y.Z"
2. git push
3. git tag vX.Y.Z
4. git push --tags
8. Upload wheel to pypi.org
1. make upload-pypi
9. Upload to weewx.com
1. make upload-docs
2. make upload-src
3. make upload-debian
4. make upload-redhat
5. make upload-suse
10. Update the deb repository
1. make pull-apt-repo
2. make update-apt-repo
3. make push-apt-repo
11. Update the redhat repository
1. make pull-yum-repo
2. make update-yum-repo
3. make push-yum-repo
12. Update the suse repository
1. make pull-suse-repo
2. make update-suse-repo
3. make push-suse-repo
13. Reshuffle files on the server
1. make release
2. make release-apt-repo
3. make release-yum-repo
4. make release-suse-repo
14. If minor version changes, update and publish the website repository
1. change URL= in docs/*.html
2. change version in docs/weedocs.js
15. Announce the release to the weewx user's group.
pre-requisites ----------------------------------------------------------------
Building the documentation requires mkdocs, which is installed using pip.
Signing packages requires gpg and local copy of authorized private+public keys.
Verifying the packages requires rpmlint/lintian.
The debian repo management requires aptly.
The redhat repo management requires createrepo.
The suse repo management requires createrepo.
To build the docs:
pip3 install --user mkdocs
pip3 install --user mkdocs-material
To build pypi package install the following (see the pypi section):
pip3 install --user poetry
To build debian package install the following (use 'apt-get install'):
git
rsync
gpg
debhelper
lintian
To build redhat package install the following (use 'yum install'):
git
rsync
gnupg
rpm-build
rpm-sign
rpmlint
rpmdevtools
To build suse package install the following (use 'zypper install'):
git
rsync
rpm-build
rpmlint
createrepo_c
howto -------------------------------------------------------------------------
how to update the version number:
Change the version number in pyproject.toml
make version # this propagates the version number everywhere
git commit -a -m "bump to version x.y.z"
how to build wheel and source tarball:
make pypi-package
how to build debian package:
make deb-changelog
emacs pkg/debian/changelog # add package-specific changes, if any
git commit -m "update deb changelog" pkg/debian/changelog
make debian-package
how to build redhat package:
make redhat-changelog
emacs pkg/changelog.el # add package-specific changes, if any
git commit -m "update redhat changelog" pkg/changelog.el
make redhat-package
how to build redhat package:
make suse-changelog
emacs pkg/changelog.suse # add any package-specific changes, if any
git commit -m "update suse changelog" pkg/changelog.suse
make suse-package
to build redhat packages with custom rpm revision:
make redhat-changelog RPMREVISION=2
make redhat-package RPMREVISION=2
make pull-yum-repo
make update-yum-repo RPMREVISION=2
make push-yum-repo
ssh weewx.com rsync -arv /var/www/html/yum-test/ /var/www/html/yum
suse also uses RPMREVISION, but debian uses DEBREVISION. this is useful when
there is a change to asset(s) in the packaging, but not part of weewx itself.
to display debconf variables:
sudo debconf-show weewx
to manually purge debconf variables:
echo PURGE | sudo debconf-communicate weewx
to sign rpm packages you need .rpmmacros in your home directory:
~/.rpmmacros
%_gpg_name YOUR_NAME_HERE
to sign the apt Release using key 'XXX':
gpg -abs -u XXX -o Release.gpg Release
to sign the RPM repository metadata using key 'XXX':
gpg -abs -u XXX -o repomd.xml.asc repomd.xml
to generate gpg key used for signing packages:
gpg --gen-key
gpg --list-keys
gpg --list-secret-keys
to export the text version of a public key:
gpg --export --armor > username.gpg.key
list keys known by rpm:
rpm -q --gpg-pubkey
rpm -q --gpg-pubkey --qf '%{NAME}-%{VERSION}-%{RELEASE}\t%{SUMMARY}\n'
delete keys known by rpm:
rpm -e gpg-pubkey-XXXXX
Install using pip
make pypi-package
pip install dist/weewx-x.y.z-py3-none-any.whl
weectl station create
debian install/remove:
apt-get install weewx # install with apt
apt-get remove weewx # remove with apt
apt-get purge weewx # purge removes /etc/weewx and debconf settings
dpkg -i weewx_x.y.z-r.deb # install
(apt-get install weewx) # finish install if dependencies failed
dpkg -r weewx # remove
dpkg -P weewx # purge
redhat install/remove:
yum install weewx-x.y.z-r.rpm [--nogpgcheck] # install with yum
yum remove weewx # remove with yum
rpm -i weewx-x.y.z-r.rpm # install with rpm directly
rpm -e weewx # remove with rpm
suse install/remove:
zypper install weewx-x.y.z-r.rpm [--nogpgcheck] # install with zypper
zypper remove weewx # remove with zypper
rpm -i weewx-x.y.z-r.rpm # install with rpm directly
rpm -e weewx # remove with rpm
howto: build the documents --------------------------------------------------
Prerequisites:
- Python 3.7 or greater, with pip installed
- Install mkdocs:
python3 -m pip install mkdocs
- Install the theme "material" for mkdocs:
python3 -m pip install mkdocs-material
Steps:
- make build-docs
howto: build and publish wheels to pypi.org -----------------------------------
Prerequisites:
- Python 3.7 or greater, with pip installed
- Install poetry:
curl -sSL https://install.python-poetry.org | python3 -
- Get an API token from pypi.org
See https://pypi.org/manage/account/token/
- Tell poetry to use it:
poetry config pypi-token.pypi pypi-substitute-your-pypi-key
Steps:
- Build the wheel
make pypi-package
- Publish to pypi.org
make upload-pypi
howto: deb repository ---------------------------------------------------------
aptly has two different mechanisms for doing a 'publish': switch or update.
we use snapshots, and publish using 'publish switch', rather than publishing
using a simple 'publish update'.
There are two apt repositories: python2 and python3
to do apt repo updates you must first install aptly:
https://www.aptly.info/download/
for example, on debian:
echo "deb http://repo.aptly.info/ squeeze main" | sudo tee /etc/apt/sources.list.d/aptly.list
wget -qO - https://www.aptly.info/pubkey.txt | sudo apt-key add -
sudo apt-get update
sudo apt-get install aptly
create local debian repo using aptly:
aptly repo create -distribution=squeeze -component=main -architectures=all python2-weewx
aptly repo create -distribution=buster -component=main -architectures=all python3-weewx
put a bunch of deb files into an empty apt repo:
for f in `ls distdir`; do aptly repo add python2-weewx distdir/$f; done
create a snapshot:
aptly snapshot create python-weewx-x.y.z-n from repo python2-weewx
aptly snapshot create python3-weewx-x.y.z-n from repo python3-weewx
publish using snapshot:
aptly publish -architectures=all snapshot python-weewx-x.y.z-n python2
aptly publish -architectures=all snapshot python3-weewx-x.y.z-n python3
update using 'publish switch':
aptly repo add python2-weewx dist/python-weewx_x.y.z-n_all.deb
aptly snapshot create python-weewx-x.y.z-n from repo python2-weewx
aptly publish switch squeeze python2 python-weewx-x.y.z-n
aptly repo add python3-weewx dist/python3-weewx_x.y.z-n_all.deb
aptly snapshot create python3-weewx-x.y.z-n from repo python3-weewx
aptly publish switch buster python3 python3-weewx-x.y.z-n
update using 'publish update':
aptly publish repo -architectures=all python2-weewx squeeze
aptly repo add python2-weewx dist/squeeze/python-weewx_x.y.z-n_all.deb
aptly publish update squeeze python2
aptly publish repo -architectures=all python3-weewx buster
aptly repo add python3-weewx dist/buster/python3-weewx_x.y.z-n_all.deb
aptly publish update buster python3
clone the published apt repo to local space:
mkdir -p ~/.aptly
rsync -arv USER@weewx.com:/var/www/html/aptly-test/ ~/.aptly
synchronize local aptly changes with the published apt repo:
rsync -arv ~/.aptly/ USER@weewx.com:/var/www/html/aptly-test
switch from testing to production (this is done at weewx.com):
rsync -arv /var/www/html/aptly-test/ /var/www/html/aptly
for clients to use an apt repo at weewx.com:
curl -s http://weewx.com/keys.html | sudo apt-key add -
echo "deb [arch=all] http://weewx.com/apt/ squeeze main" | sudo tee /etc/apt/sources.list.d/weewx.list
echo "deb [arch=all] http://weewx.com/apt/ buster main" | sudo tee /etc/apt/sources.list.d/python3-weewx.list
howto: yum repository ---------------------------------------------------------
create yum repo:
mkdir -p ~/.yum/weewx/{el7,el8,el9}/RPMS
update local yum repo with latest rpm:
cp *.el7.rpm ~/.yum/weewx/el7/RPMS
createrepo -o ~/.yum/weewx/el7 ~/.yum/weewx/el7
cp *.el8.rpm ~/yum/weewx/el8/RPMS
createrepo -o ~/.yum/weewx/el8 ~/.yum/weewx/el8
cp *.el9.rpm ~/yum/weewx/el9/RPMS
createrepo -o ~/.yum/weewx/el9 ~/.yum/weewx/el9
clone the published yum repo to local space:
mkdir -p ~/.yum
rsync -arv USER@weewx.com:/var/www/html/yum-test/ ~/.yum
synchronize local yum changes with published yum repo:
rsync -arv ~/.yum/ USER@weewx.com:/var/www/html/yum-test
switch from testing to production (this is done at weewx.com):
rsync -arv /var/www/html/yum-test/ /var/www/html/yum
notes -------------------------------------------------------------------------
there are multiple changelogs:
docs/changes.md - definitive changelog for the application
pkg/debian/changelog - changes to the debian packaging
pkg/changelog.el - changes to the redhat packaging
pkg/changelog.suse - changes to the suse packaging
when signing RPMs, gpg info must match the name and email in the latest package
changelog entry.
when signing apt Release using aptly, beware that aptly uses the first gpg key
that it finds. that might not be what you want.
the debian changelog *must* have a version number that matches the app version.
the redhat package will build if the version numbers do not match. use the
rpm-changelog and deb-changelog targets to ensure that changelog versions match
the application version for a release.
there are many ways to build a debian package. first tried dpkg (uses DEBIAN
dir and is fairly low-level) but that does not create changes and source diffs.
then dried dpkg-buildpackage (uses debian dir and is higher level) but misses
the config and templates. ended up using dpkg-buildpackage with some manual
(scripted) file manipulation.
both debian and redhat deprecate the use of '/usr/bin/env python' as the
shebang - they want a very tight binding to the operating system python as the
shebang. in fact, since late 2019 redhat build tools see any shebang other
than a tight coupling to the operating system's python as an error and refuse
to accept it. however, the bsd platforms prefer this as the shebang, and the
other approach fails on bsd. macos uses something else.
since weewx5 supports any python 3.6+, older weewx supports python 2.7 and any
python 3.5+, weewx does not have to be tightly coupled to any specific python
installation on the system.
so the source code should use the '/usr/bin/env python' shebang. on platforms
that refuse to accept this, the package builder will replace this with
whatever that platform will accept. for pip installs, pip does the shebang
mangling and sets entry points that are appropriate for its configuration.
for everything else, using the env in shebang and making the entry points
executable enables either 'python foo.py' or 'foo.py' invocation.
the /etc/default/weewx plus shell stubs in /usr/bin/wee* is used in deb/rpm
and non-linux installations to provide python flexibility, so that users can
use a single weewx installation to experiment with different python versions.
this is particularly helpful when running weewx directly from source in a git
clone, it also works in the deb/rpm installs where the python is managed
separately from the system's python, as well as the non-linux, non-pip
installations.
unfortunately, this can cause problems during an installation. if the pre/post
install scripts invoke /usr/bin/weectl instead of the python code directly,
they can end up getting python2 or a python3 that does not have the right
modules installed. so maintainer scripts and scriptlets must ensure that they
use a known-working python.
prefer to use expressive but no overly verbose output in scriptlets and
maintainer scripts. many redhat scriptlets seem to be silent, perhaps only
emitting messages when there is a failure. unfortunately, most of our failures
have been due to things that we never even predicted, let alone created error
traps for. so having output from each step helps us figure out where a
failure came from. apparently redhat will add better logging/capture from
scriptlets in redhat 10 - the anaconda installer already does a pretty good
job of capturing and isolating output from scriptlets, but redhat plans to add
similar functionality to dnf in redhat 10.
fedora docs say that a service may be enabled if it does not alter other
services, does not fail, does not require configuration before starting, and
does not listen for outside connections. so we can enable the weewx daemon,
but that does *not* mean we can run it.
for a new install, we only enable and start the primary unit. for an upgrade,
on a system with systemd we remove any sysv bits and migrate them to systemd.
signing packages --------------------------------------------------------------
gpg is used to sign the deb repository and rpm packages. SHA1 is no longer
acceptable for signing, so be sure that your gpg keys and the signing command
use SHA256 instead. this should be the default when building on redhat9 and
later. if it is not the default, then it can be forced with a change to the
signing macro in .rpmmacros - add the line --digest-algo sha256
%__gpg_sign_cmd %{__gpg} \
gpg --no-verbose --no-armor \
%{?_gpg_digest_algo:--digest-algo %{_gpg_digest_algo}} \
--no-secmem-warning \
--digest-algo sha256 \
%{?_gpg_sign_cmd_extra_args:%{_gpg_sign_cmd_extra_args}} \
-u "%{_gpg_name}" -sbo %{__signature_filename} %{__plaintext_filename}
In the debian world, you sign the repository (specifically the file 'Release'),
not the individual .deb files. So if you need to re-sign, you re-build and
re-sign the repository; there is no need touch the individual .deb files.
Signing is controlled by the -us and -uc options to dpkg-build. If you do not
specify those options, then dpkg-build will try to sign the .dsc, .buildinfo,
and .changes files. The .deb itself is not signed.
SUSE wants you to sign the RPMs as well as the repository metadata. The meta
data are in repomd.xml, and a fully signed repository must include the files
repomd.xml.asc and repomd.xml.key. So although it is possible to use one key
for the meta data and different keys for the RPMs, it is probably best to sign
with a single, shared key.
On SUSE, zypper keeps the repo information in a local cache /var/cache/zypp/raw
init --------------------------------------------------------------------------
For the packaged installers, the installer must "do the right thing" with
respect to starting, restarting, and enabling the weewxd daemon. This does
not necessarily align with platform policies.
On systems with systemd (redhat, suse, debian):
- new install
- start weewxd if no preset or preset does not say no
- enable weewxd if no preset or preset does not say no
- upgrade from 4.x
- remove any SysV scripts - weewxd and weewx-multi
- start weewxd if weewxd was running
- enable weewxd if weewxd was enabled
- upgrade from 5.x
- start weewxd only if weewxd was already running
- enable weewxd only if not disabled
On systems with SysV (debian):
- new install
- start weewxd
- enable weewxd
- upgrade from 4.x
- replace weewx and weewx-multi with weewx
- start weewxd if weewxd was running
- enable weewxd if weewxd was enabled
- upgrade from 5.x
- start weewxd only if weewxd was already running
- enable weewxd only if not disabled
unit tests --------------------------------------------------------------------
prerequisites:
python 3.7
python-usb
pyephem
to set up mysql server with user and permissions for testing:
make test-setup
to run all unit tests:
make test
(note: do not run this as root)
to clean up after running tests:
make test-clean
guidelines:
unit tests should put transient files in /var/tmp/weewx_test
testing -----------------------------------------------------------------------
what to test when creating debian and redhat packages:
install, upgrade, remove, purge
install, modify files, remove
install previous release, modify files, upgrade, remove
Using pip:
- new install to user space
make pypi-package
pip install dist/weewx-x.y.z-py3-none-any.whl --user
weectl station create
- upgrade user data
modify ~/weewx-data/weewx.conf
weectl station upgrade
- new install using pip to /opt/weewx
make pypi-package
sudo pip install dist/weewx-x.y.z-py3-none-any.whl
sudo weectl station create /opt/weewx/weewx.conf
- upgrade using setup.py to /opt/weewx
setup.py install home=/opt/weewx
modify /opt/weewx/weewx.conf
setup.py install home=/opt/weewx
on centos and suse:
- new install using rpm
rpm -i weewx_x.y.z.rpm
- upgrade using rpm
rpm -i weewx_r.s.t.rpm
rpm -U weewx_x.y.z.rpm
- upgrade using rpm with extensions installed
rpm -i weewx_r.s.t.rpm
wee_extension --install cmon
rpm -U weewx_x.y.z.rpm
debian:
- new install usinb dpkg
dpkg -i weewx_x.y.z.deb
- upgrade using dpkg take maintainer's version of weewx.conf
dpkg -i weewx_r.s.t.deb
modify /etc/weewx/weewx.conf
dpkg -i weewx_x.y.z.deb
- upgrade using dpkg use old version of weewx.conf
dpkg -i weewx_r.s.t.deb
modify /etc/weewx/weewx.conf
dpkg -i weewx_x.y.z.deb
- reconfigure using dpkg
dpkg-reconfigure weewx
all platforms:
- installation and removal of extensions
weectl extension install https://github.com/matthewwall/weewx-cmon/archive/master.zip
weectl extension install ~/weewx-data/examples/pmon
weectl extension uninstall cmon
weectl extension uninstall pmon
- reconfigure
weectl station reconfigure
weectl station reconfigure --driver=weewx.drivers.vantage --no-prompt