refactor!(go): remove go-guru

BREAKING CHANGE: Removes go-guru from the Go module. It has been
deprecated upstream in favor of gopls, the official Go LSP server.

Close: #7995
Ref: golang/go/issues/65880
Co-authored-by: Henrik Lissner <git@henrik.io>

modules/lang/go/README.org

@@ -13,7 +13,6 @@ This module adds [[https://golang.org][Go]] support, with optional (but recommen
 - REPL (~gore~)
 - Syntax-checking (~flycheck~)
 - Auto-formatting on save (~gofmt~) (requires [[doom-module::editor format +onsave]])
-- Code navigation & refactoring (~go-guru~)
 - [[../../editor/file-templates/templates/go-mode][File templates]]
 - [[https://github.com/hlissner/doom-snippets/tree/master/go-mode][Snippets]]
 - Generate testing code (~go-gen-test~)
@@ -36,7 +35,6 @@ This module adds [[https://golang.org][Go]] support, with optional (but recommen
 - [[doom-package:flycheck-golangci-lint]] if [[doom-module::checkers syntax]]
 - [[doom-package:go-eldoc]]
 - [[doom-package:go-gen-test]]
-- [[doom-package:go-guru]]
 - [[doom-package:go-mode]]
 - [[doom-package:gorepl-mode]]
 - [[doom-package:go-tag]]
@@ -64,7 +62,6 @@ below.
 - ~godoc~ (for documentation lookup)
 - ~gorename~ (for extra refactoring commands)
 - ~gore~ (for the REPL)
-- ~guru~ (for code navigation & refactoring commands)
 - ~goimports~ (/optional/: for auto-formatting code on save & fixing imports)
 - ~gotests~ (for generate test code)
 - ~gomodifytags~ (for manipulating tags)
@@ -77,7 +74,6 @@ go install github.com/stamblerre/gocode@latest
 go install golang.org/x/tools/cmd/godoc@latest
 go install golang.org/x/tools/cmd/goimports@latest
 go install golang.org/x/tools/cmd/gorename@latest
-go install golang.org/x/tools/cmd/guru@latest
 go install github.com/cweill/gotests/gotests@latest
 go install github.com/fatih/gomodifytags@latest
 #+end_src
@@ -102,16 +98,6 @@ go install github.com/fatih/gomodifytags@latest
 | [[kbd:][<localleader> b b]]   | run ~$ go build~                                      |
 | [[kbd:][<localleader> b r]]   | run ~$ go run .~                                      |
 | [[kbd:][<localleader> h .]]   | lookup symbol at point in godoc                       |
-| [[kbd:][<localleader> h d]]   | describe symbol at point                              |
-| [[kbd:][<localleader> h v]]   | list free variables                                   |
-| [[kbd:][<localleader> h i]]   | list implements relations for package types           |
-| [[kbd:][<localleader> h p]]   | list peers for channel                                |
-| [[kbd:][<localleader> h P]]   | "what does this point to"                             |
-| [[kbd:][<localleader> h r]]   | list references to object                             |
-| [[kbd:][<localleader> h e]]   | which errors                                          |
-| [[kbd:][<localleader> h w]]   | what query                                            |
-| [[kbd:][<localleader> h c]]   | show callers of function at point                     |
-| [[kbd:][<localleader> h C]]   | show callees of function at point                     |
 | [[kbd:][<localleader> t t]]   | rerun last test                                       |
 | [[kbd:][<localleader> t a]]   | run all tests in project                              |
 | [[kbd:][<localleader> t f]]   | run all tests in current file                         |

modules/lang/go/config.el

@@ -7,8 +7,6 @@
   (set-docsets! 'go-mode "Go")
   (set-repl-handler! 'go-mode #'gorepl-run)
   (set-lookup-handlers! 'go-mode
-    :definition #'go-guru-definition
-    :references #'go-guru-referrers
     :documentation #'godoc-at-point)
 
   (if (modulep! +lsp)
@@ -25,17 +23,7 @@
         "e" #'+go/play-buffer-or-region
         "i" #'go-goto-imports      ; Go to imports
         (:prefix ("h" . "help")
-          "." #'godoc-at-point     ; Lookup in godoc
+          "." #'godoc-at-point)    ; Lookup in godoc
-          "d" #'go-guru-describe   ; Describe this
-          "v" #'go-guru-freevars   ; List free variables
-          "i" #'go-guru-implements ; Implements relations for package types
-          "p" #'go-guru-peers      ; List peers for channel
-          "P" #'go-guru-pointsto   ; What does this point to
-          "r" #'go-guru-referrers  ; List references to object
-          "e" #'go-guru-whicherrs  ; Which errors
-          "w" #'go-guru-what       ; What query
-          "c" #'go-guru-callers    ; Show callers of this function
-          "C" #'go-guru-callees)   ; Show callees of this function
         (:prefix ("ri" . "imports")
           "a" #'go-import-add
           "r" #'go-remove-unused-imports)

modules/lang/go/doctor.el

@@ -9,9 +9,6 @@
              (modulep! :tools tree-sitter))
          "This module requires (:tools tree-sitter)")
 
-(unless (executable-find "guru")
-  (warn! "Couldn't find guru. Refactoring commands (go-guru-*) won't work"))
-
 (unless (executable-find "gore")
   (warn! "Couldn't find gore. REPL will not work"))
 

modules/lang/go/packages.el

@@ -2,7 +2,6 @@
 ;;; lang/go/packages.el
 
 (package! go-eldoc :pin "cbbd2ea1e94a36004432a9ac61414cb5a95a39bd")
-(package! go-guru :pin "636d36e37a0d2b6adb2e12d802ff4794ccbba336")
 (package! go-mode :pin "636d36e37a0d2b6adb2e12d802ff4794ccbba336")
 (package! gorepl-mode :pin "6a73bf352e8d893f89cad36c958c4db2b5e35e07")
 (package! go-tag :pin "33f2059551d5298ca228d90f525b99d1a8d70364")