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mirror of https://github.com/systemd/systemd-stable.git synced 2024-12-22 13:33:56 +03:00

doc: add a list of code quality tools we have set up

Also, as a reminder all of these exist to myself.
This commit is contained in:
Lennart Poettering 2018-06-07 15:07:23 +02:00
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# Code Quality Tools
The systemd project has a number of code quality tools set up in the source
tree and on the github infrastructure. Here's an incomprehensive list of the
available functionality:
1. Use `ninja -C build test` to run the unit tests. Some tests are skipped if
no privileges are available, hence consider also running them with `sudo
ninja -C build test`. A couple of unit tests are considered "unsafe" (as
they change system state); to run those too, build with `meson
-Dtests=unsafe`. Finally, some unit tests are considered to be very slow,
build them too with `meson -Dslow-tests=true`. (Note that there are a couple
of manual tests in addition to these unit tests.)
2. Use `./test/run-integration-tests.sh` to run the full integration test
suite. This will build OS images with a number of integration tests and run
them in nspawn and qemu. Requires root.
3. Use `./coccinelle/run-coccinelle.sh` to run all
[Coccinelle](http://coccinelle.lip6.fr/) semantic patch scripts we ship. The
output will show false positives, hence take it with a pinch of salt.
4. Use `./tools/find-double-newline.sh recdiff` to find double newlines. Use
`./tools/find-double-newline.sh recpatch` to fix them. Take this with a grain
of salt, in particular as we generally leave foreign header files we include in
our tree unmodified, if possible.
5. Similar use `./tools/find-tabs.sh recdiff` to find TABs, and
`./tools/find-tabs.sh recpatch` to fix them. (Again, grain of salt, foreign
headers should usually be left unmodified.)
6. Use `ninja -C build check-api-docs` to compare the the list of exported
symbols of `libsystemd.so` and `libudev.so` with the list of man pages. Symbols
lacking documentation are highlighted.
7. Use `ninja -C build hwdb-update` to automatically download and import the
PCI, USB and OUI databases into hwdb.
8. Use `ninja -C build man/update-man-rules` to update the meson rules for
building man pages automatically from the docbook XML files included in
`man/`.
9. There are multiple CI systems in use that run on every github PR submission.
10. [Coverity](https://scan.coverity.com/) is analyzing systemd master in
regular intervals. The reports are available
[online](https://scan.coverity.com/projects/systemd).
11. [oss-fuzz](https://oss-fuzz.com/) is continuously fuzzing the
codebase. Reports are available
[online](https://oss-fuzz.com/v2/testcases?project=systemd).
Access to Coverity and oss-fuzz reports is limited. Please reach out the the
maintainers is you need access.