execute-language-server.md

title	versions	topics	type	product	autogenerated	intro	redirect_from
execute language-server	fpt ghec ghes * * *	Advanced Security Code scanning CodeQL	reference	{% data reusables.gated-features.codeql %}	codeql-cli	[Plumbing] On-line support for the QL language in IDEs.	/code-security/codeql-cli/manual/execute-language-server

{% data reusables.codeql-cli.man-pages-version-note %}

Synopsis

codeql execute language-server --check-errors=<checkErrors> <options>...

Description

[Plumbing] On-line support for the QL language in IDEs.

This command is only relevant for authors of QL language extensions for IDEs. It is started by the IDE extension in the background and communicates with it through a special protocol on its standard input and output streams.

Options

Primary Options

--check-errors=<checkErrors>

[Mandatory] How to check errors. One of: ON_CHANGE, EXPLICIT.

--search-path=<dir>[:<dir>...]

This works like the similar option to codeql query compile (q.v.).

There are no --additional-packs or --library-path options, as the corresponding values are provided online by the IDE extension through the language server protocol.

(Note: On Windows the path separator is ;).

--synchronous

Carry out actions a single main thread rather than in a threaded executor.

Common options

-h, --help

Show this help text.

-J=<opt>

[Advanced] Give option to the JVM running the command.

(Beware that options containing spaces will not be handled correctly.)

-v, --verbose

Incrementally increase the number of progress messages printed.

-q, --quiet

Incrementally decrease the number of progress messages printed.

--verbosity=<level>

[Advanced] Explicitly set the verbosity level to one of errors, warnings, progress, progress+, progress++, progress+++. Overrides -v and -q.

--logdir=<dir>

[Advanced] Write detailed logs to one or more files in the given directory, with generated names that include timestamps and the name of the running subcommand.

(To write a log file with a name you have full control over, instead give --log-to-stderr and redirect stderr as desired.)

--common-caches=<dir>

[Advanced] Controls the location of cached data on disk that will persist between several runs of the CLI, such as downloaded QL packs and compiled query plans. If not set explicitly, this defaults to a directory named .codeql in the user's home directory; it will be created if it doesn't already exist.

Available since v2.15.2.