Part of #2571965: [meta] Fix PHP coding standards in core.
Approach
We are testing coding standards with PHP CodeSniffer, using the Drupal coding standards from the Coder module. Both of these packages are not installed in Drupal core. We need to do a couple of steps in order to download and configure them so we can run a coding standards check.
Step 1: Add the coding standard to the whitelist
Every coding standard is identified by a "sniff". For example, an imaginary coding standard that would require all llamas to be placed inside a square bracket fence would be called the "Drupal.AnimalControlStructure.BracketedFence
sniff". There are dozens of such coding standards, and to make the work easier we have started by only whitelisting the sniffs that pass. For the moment all coding standards that are not yet fixed are simply skipped during the test.
Open the file core/phpcs.xml.dist
and add a line for the sniff of this ticket. The sniff name is in the issue title. Make sure your patch will include the addition of this line.
Step 2: Install PHP CodeSniffer and the ruleset from the Coder module
Both of these packages are not installed by default in Drupal core, so we need to download them. This can be done with Composer, from the root folder of your Drupal installation:
$ composer require drupal/coder squizlabs/php_codesniffer
$ ./vendor/bin/phpcs --config-set installed_paths ../../drupal/coder/coder_sniffer
Once you have installed the phpcs package, you can list all the sniffs available to you like this:
$ ./vendor/bin/phpcs --standard=Drupal -e
This will give you a big list of sniffs, and the Drupal-based ones should be present.
Step 3: Prepare the phpcs.xml file
To speed up the testing you should make a copy of the file phpcs.xml.dist
(in the core/
folder) and save it as phpcs.xml
. This is the configuration file for PHP CodeSniffer.
We only want this phpcs.xml file to specify the sniff we're interested in. So we need to remove all the rule items, and add only our own sniff's rule. Rule items look like this:
<rule ref="Drupal.Classes.UnusedUseStatement"/>
Remove all of them, and add only the sniff from this issue title. This will make sure that our tests run quickly, and are not going to contain any output from unrelated sniffs.
Step 4: Run the test
Now you are ready to run the test! From within the core/
folder, run the following command to launch the test:
$ cd core/
$ ../vendor/bin/phpcs -p
This takes a couple of minutes. The -p
flag shows the progress, so you have a bunch of nice dots to look at while it is running.
Step 5: Fix the failures
When the test is complete it will present you a list of all the files that contain violations of your sniff, and the line numbers where the violations occur. You could fix all of these manually, but thankfully phpcbf
can fix many of them. You can call phpcbf like this:
$ ../vendor/bin/phpcbf
This will fix the errors in place. You can then make a diff of the changes using git. You can also re-run the test with phpcs and determine if that fixed all of them.
Comment | File | Size | Author |
---|---|---|---|
#37 | interdiff.txt | 1.67 KB | andypost |
#37 | 2572633-37.patch | 3.32 KB | andypost |
#37 | 2572633-37-phpcbf.patch | 3.45 KB | andypost |
Comments
Comment #3
mikebell_ CreditAttribution: mikebell_ as a volunteer commentedWhat commit was this made against? I'm happy to help split it down into more manageable patches so it's not so huge.
Comment #4
attiks CreditAttribution: attiks commentedIt is a first test run using a script, to see how easy we can automate it, all ideas welcome but best to post them in the parent issue
Comment #6
tatarbjThis patch just generate more coding standard bugs, it really needs a deep check and fix all of those empty doc what are generated with this patch.
Comment #7
attiks CreditAttribution: attiks at Attiks commentedComment #8
DuaelFrAs agreed between the mentors at Drupalcon, according to issues to avoid for novices, I am untagging this issue as "Beginner". This issue contains changes across a very wide range of files and might create too many other patches to need to be rerolled at this particular time. This patch has an automated way to be rerolled later so better to implement it after Drupalcon.
Comment #10
pfrenssenComment #11
andriyun CreditAttribution: andriyun at Skilld commentedpatch outdated
Comment #12
andriyun CreditAttribution: andriyun at Skilld commentedNew patch with removed Drupal.Commenting.ClassComment sniff from phpcs.xml.dist file.
Comment #14
andypostSuppose this issue should not be blocked because changing only a doc block
This is only change in blocker #2610984: Add Archive Tar via Composer, with BC shim
Comment #17
akhilavnairIs this issue still relevant?
Comment #18
andriyun CreditAttribution: andriyun at Skilld commentedPatch is outdated
Comment #19
vprocessor CreditAttribution: vprocessor at Skilld commentedComment #20
vprocessor CreditAttribution: vprocessor at Skilld commentedHi guys,
reroll is ready, waiting for tests
Comment #22
andypostdo not change this file, please
this one is vendor locked
Comment #23
vprocessor CreditAttribution: vprocessor at Skilld commentedfixed
Comment #25
andypostthat's wrong
hm
any reason?
the same
hm
there's a lot of changes like this
but there should be empty line before phpdoc
here should be space after * for each line
I'm sure those was remove for reason, check history of the file
hm
Comment #26
vprocessor CreditAttribution: vprocessor at Skilld commentedfixed
Comment #28
andypostI see no reason in empty doc blocks, so they should be filled and
this changes should be removed!
Comment #29
vprocessor CreditAttribution: vprocessor at Skilld commented>>this changes should be removed!
ok
Comment #30
vprocessor CreditAttribution: vprocessor at Skilld commented>>>>this changes should be removed!
>>ok
done
Comment #31
vprocessor CreditAttribution: vprocessor at Skilld commentedComment #32
alexpottWe can't just add empty comments - that's silly. This issue is going to take a long time to solve. Each class needs its own documentation. I suggest we split this sniff up into separate issues to fix each sub sniff. See latest patch on #2707641: Ensure core compliance to Drupal.Commenting.FunctionComment.ParamCommentIndentation (part 2) for an example of how to dow this.
This is weird there is a new line at the end of the file in HEAD
Comment #33
vprocessor CreditAttribution: vprocessor at Skilld commentedComment #34
pfrenssenComment #35
pfrenssenComment #36
pfrenssenComment #37
andypostHere is a manually fixed patch after "phpcbf" and excluded "Missing" subsniffer
I think missing doc blocks needs separate issue
Comment #38
dawehnerPerfect
Comment #39
alexpottCommitted 246c162 and pushed to 8.1.x. Thanks!