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I have no idea if this is going to cause rendering problems, and it is fairly hard to check. So let's just merge this, and if it github markdown processor doesn't like it, revert.
82 lines
3.8 KiB
Markdown
82 lines
3.8 KiB
Markdown
---
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title: Code Quality Tools
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category: Contributing
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layout: default
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SPDX-License-Identifier: LGPL-2.1-or-later
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---
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# Code Quality Tools
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The systemd project has a number of code quality tools set up in the source
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tree and on the github infrastructure. Here's an incomprehensive list of the
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available functionality:
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1. Use `meson test -C build` to run the unit tests. Some tests are skipped if
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no privileges are available, hence consider also running them with `sudo
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meson test -C build`. A couple of unit tests are considered "unsafe" (as
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they change system state); to run those too, build with `meson setup
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-Dtests=unsafe`. Finally, some unit tests are considered to be very slow,
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build them too with `meson setup -Dslow-tests=true`. (Note that there are a
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couple of manual tests in addition to these unit tests.) (Also note: you can
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change these flags for an already set up build tree, too, with "meson
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configure -C build -D…".)
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2. Use `./test/run-integration-tests.sh` to run the full integration test
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suite. This will build OS images with a number of integration tests and run
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them in nspawn and qemu. Requires root.
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3. Use `./coccinelle/run-coccinelle.sh` to run all
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[Coccinelle](http://coccinelle.lip6.fr/) semantic patch scripts we ship. The
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output will show false positives, hence take it with a pinch of salt.
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4. Use `./tools/find-double-newline.sh recdiff` to find double newlines. Use
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`./tools/find-double-newline.sh recpatch` to fix them. Take this with a grain
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of salt, in particular as we generally leave foreign header files we include in
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our tree unmodified, if possible.
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5. Similar use `./tools/find-tabs.sh recdiff` to find TABs, and
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`./tools/find-tabs.sh recpatch` to fix them. (Again, grain of salt, foreign
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headers should usually be left unmodified.)
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6. Use `meson compile -C build check-api-docs` to compare the list of exported
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symbols of `libsystemd.so` and `libudev.so` with the list of man pages. Symbols
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lacking documentation are highlighted.
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7. Use `meson compile -C build update-hwdb` to automatically download and import the
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PCI, USB and OUI databases into hwdb.
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8. Use `meson compile -C build update-man-rules` to update the meson rules for
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building man pages automatically from the docbook XML files included in
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`man/`.
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9. There are multiple CI systems in use that run on every github PR submission.
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10. [Coverity](https://scan.coverity.com/) is analyzing systemd master in
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regular intervals. The reports are available
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[online](https://scan.coverity.com/projects/systemd).
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11. [oss-fuzz](https://oss-fuzz.com/) is continuously fuzzing the
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codebase. Reports are available
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[online](https://oss-fuzz.com/v2/testcases?project=systemd).
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12. Our tree includes `.editorconfig`, `.dir-locals.el` and `.vimrc` files, to
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ensure that editors follow the right indentiation styles automatically.
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13. When building systemd from a git checkout the build scripts will
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automatically enable a git commit hook that ensures whitespace cleanliness.
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14. [LGTM](https://lgtm.com/) analyzes every commit pushed to master. The list
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of active alerts can be found
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[here](https://lgtm.com/projects/g/systemd/systemd/alerts/?mode=list).
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15. Each PR is automatically tested with [Address Sanitizer](https://clang.llvm.org/docs/AddressSanitizer.html)
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and [Undefined Behavior Sanitizer](https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html).
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See [Testing systemd using sanitizers](https://systemd.io/TESTING_WITH_SANITIZERS)
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for more information.
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16. Fossies provides [source code misspelling reports](https://fossies.org/features.html#codespell).
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The systemd report can be found [here](https://fossies.org/linux/test/systemd-master.tar.gz/codespell.html).
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Access to Coverity and oss-fuzz reports is limited. Please reach out to the
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maintainers if you need access.
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