GNU bug report logs - #66726
29.1; Eglot jdtls formatter ignored

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Message #8 received at 66726 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Cay Horstmann <cay <at> horstmann.com>, João Távora
 <joaotavora <at> gmail.com>
Cc: 66726 <at> debbugs.gnu.org
Subject: Re: bug#66726: 29.1; Eglot jdtls formatter ignored
Date: Sun, 29 Oct 2023 14:08:21 +0200

> Date: Tue, 24 Oct 2023 11:17:09 +0200
> From: Cay Horstmann <cay <at> horstmann.com>
> 
> Eglot does not trigger a custom formatter with jdtls, while lsp-java and VS Code with the Red Hat Java plugin can do this. See https://github.com/joaotavora/eglot/discussions/1222 for more background.
> 
> I attach files
> * eglot-debug.el (the minimal configuration to see the failure)
> * NotHelloWorld.java (a sample Java file)
> * cay-eclipse-formatter.xml (the formatting rules for jdtls)
> * eglot-events.txt (the events log from eglot)
> * lsp-java-debug.el (the minimal configuration to see how it works with lsp-java)
> * lsp-log.txt (the log from the successful run with lsp)
> 
> Download jdtls from https://download.eclipse.org/jdtls/snapshots/?d. I
> have the version from Oct. 14, 2023. Put it somewhere on your PATH
> 
> Put the NotHelloWorld.java file in some directory (I use /tmp/hello)
> 
> Put the cay-eclipse-formatter.xml file somewhere and adjust the path in eglot-debug.el and lsp-java-debug.el.
> 
> emacs -q -l eglot-debug.el /tmp/hello/NotHelloWorld.java
> 
> M-x eglot RET
> 
> Wait for jdtls to start
> 
> M-x eglot-format-buffer RET
> 
> The formatting should now use the rules in the cay-eclipse-formatter.xml
> file, resulting in 8 changes but the same Allman indentation
> style. Instead, it uses a K&R indentation style.
> 
> To see the proper formatting, install lsp-mode and lsp-java and start with lsp-java-debug.el. Or use VS Code with the Red Hat Java plugin and the settings.json
> 
> {
>      "java.format.settings.url": "file:///data/cay/bin/cay-eclipse.formatter.xml",
>      "java.format.settings.profile": "cay"
> }

João, any comments?

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