create rust-analyzer.sh script

This script should be ran by the LSP server to get error diagnostics.

.dir-locals.el

@@ -3,12 +3,12 @@
                (rust-cargo-default-arguments . "-r")
                (eglot-workspace-configuration . (:rust-analyzer
                                                  (:check
-                                                  (:overrideCommand ["ninja" "clippy-json" "-C" "build"]))))
+                                                  (:overrideCommand ["./rust-analyzer.sh"]))))
                (eval . (add-to-list 'eglot-server-programs
                                     '((rust-ts-mode rust-mode) .
                                       ("rust-analyzer" :initializationOptions
                                        (:check
-                                        (:overrideCommand ["ninja" "clippy-json" "-C" "build"]))))))
+                                        (:overrideCommand ["./rust-analyzer.sh"]))))))
                (eval . (eglot-ensure))
                (eval . (company-mode 1))
                (eval . (add-hook 'before-save-hook 'fmt-current-buffer nil t))

rust-analyzer.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# this script is a temporary workaround for not having a proper clippy-json target
+
+source /etc/profile
+
+cd build || exit $?
+
+# compile as far as we can
+ninja
+
+ninja clippy-json