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Hey. Flycheck is not running my Perl syntax check asynchronously. For debugging purposes I've set flycheck-perl-executable to a shell script that simply sleeps for five seconds. Afterwards opening any Perl file and turning on flycheck-mode makes Emacs hang for exactly those five seconds. Aren't the checks supposed to run asynchronously? Meaning that I can continue using Emacs while the syntax checker is doing its thing? (Yes, I've confirmed the behavior with
emacs -Q and minimal initialization to get flycheck up and running)
Oooooh I think I know what happens. Please check if the following makes sense:
- I'm only setting
flycheck-perl-executable, I'm not defining my own checker. - The default Perl checker has
:standard-input tset. - My custom executable set in 1. does not read from STDIN, it only uses the file name passed to it as a command-line argument.
- flycheck starts my executable in the background.
- My executable does its thing & runs the costly check. My executable does not read from STDIN.
- flycheck tries to write the current buffer's content to the sub-process's STDIN. This only works with very small buffers (< 512 bytes, maybe?) which are buffered by the C library (or operating system). If the current buffer is larger, though, the C library will block as the sub-process isn't reading its STDIN and Emacs's output buffer is full. Here's where the hang happens.
- As soon as my executable ends, Emacs's sub-process terminates, flycheck's attempted write operation fails.
Thanks for the help! And the work on flycheck. I really love it.
BTW, one tiny bug I did notice during my tests was that
flycheck-compile shell-escapes the binary to execute without running expand-file-name on it. When setting flycheck-perl-executable to ~/bin/myperlcheck or something like that, flycheck-compile will escape that to \~/bin/myperlcheck, and that will fail as there's no such binary.
Good point. I wonder if this was by design when sebastian wrote that part. Is there a good way to just expand
~? The problem otherwise is that if we get python3.5 as the checker name, don't find it in PATH, and expand it to /the/current/directory/python3.5, users will be mightily confused.
can anyone help me troubleshoot it?
flycheck-clj-kondo is a melpa package and it was installed successfully
or hobbling along at reduced capacity
partcularly: elpa.gnu.org apparently
Is there an official way to do what I tried in a
.dir-locals.el https://pastebin.com/53XVB4g1, i.e. to disable flycheck for all "wscript" files? Also, what about disabling for "*.suffix" files?
Hi all. Can anyone help me with the
php-phpcs checker? I get an error when I run it with flycheck-compile, but there are no errors in the list:Compilation started at Wed Nov 20 15:30:05
/home/abrick/bin/phpcs-core --report\=checkstyle -q --stdin-path\=REDACTED/src/Entity/Group.php - < REDACTED/src/Entity/Group.php
<?xml version="1.0" encoding="UTF-8"?>
<checkstyle version="3.5.0">
<file name="src/Entity/Group.php">
<error line="6" column="1" severity="error" message="Use statements should be sorted alphabetically. The first wrong one is App\Constant\Role." source="SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses.IncorrectlyOrderedUses"/>
</file>
</checkstyle>
Compilation exited abnormally with code 2 at Wed Nov 20 15:30:05flycheck-current-errors is a variable defined in ‘flycheck.el’.
Its value is nil
Local in buffer Group.php; global value is the same.
Automatically becomes buffer-local when set.
Documentation:
A list of all errors and warnings in the current buffer.
can I see log messages like in Messages somehow?
Hello,
I just install flycheck and I am trying to make it work with eslint but I for some reason it can't find the .eslintrc.js in my project
This is what I get when I do verify setup
javascript-eslint (disabled)
- may enable: Automatically disabled!
- executable: Found at /usr/local/bin/eslint
- config file: missing or incorrect
Flycheck Mode is enabled. Use C-u C-c ! x to enable disabled
checkers.
--------------------
Flycheck version: 32snapshot (package: 20191121.2139)
Emacs version: 26.3
System: x86_64-apple-darwin18.2.0
Window system: nseslint -v v5.13.0 if that helps
I am new here, I am facing an issue, I have enabled run on save buffer, now whenever I save by typescript buffer, with typescript-tide and typescript-tslint check enabled, the emacs freezes for a couple of second.
Does any one else has this issue?
Can flycheck be used for custom compilers. For example, if my company uses their own compiler can I use that compiler with flycheck? I think the flycheck-define-checker function can do it, but our command line has to be initialized with a special command before our compiler can be run.
Hi there! I'm using Spacemacs & Flycheck with Javascript-Eslint. Overall, it works. But at a specific error, when typing
I must move the cursor down the file for
flycheck-next-error, it refuses to go on.I must move the cursor down the file for
flycheck-next-error to work again. See the attached .gif. Do you guys have any clue where this comes from?
I recently updated my OS and now flycheck is running mypy from within a package instead of the project root. E.g., say I have
myproject/ as the project root, and I open myproject/mypackage/mymodule.py, it is running mypy with myproject/mypackage/ as the default-directory instead of myproject/.
This used to work and I'm not sure what has changed. I think I'm using the same Emacs config. I don't have (nor did I have before) any
.dir-locals file, nor any mypy.ini or setup.cfg file in the project root. I see that the upcoming version 32 of flycheck will allow for better configuration for these landmark config files, but is there anything I can do now?