mirror of
https://github.com/jimeh/.emacs.d.git
synced 2026-02-19 13:46:41 +00:00
280 lines
8.3 KiB
EmacsLisp
280 lines
8.3 KiB
EmacsLisp
;;; siren-golang.el --- jimeh's Emacs Siren: go-mode configuration.
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;;; Commentary:
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;; Basic configuration for go-mode.
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;;; Code:
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(require 'siren-dap)
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(require 'siren-flycheck)
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(require 'siren-lsp)
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(require 'siren-prog-mode)
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(require 'siren-projectile)
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(require 'siren-reformatter)
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(use-package go-mode
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:mode "\\.go\\'"
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:interpreter "go"
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:commands go-mode
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:general
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(:keymaps 'go-mode-map
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"RET" 'newline-and-indent
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"C-h f" 'godoc-at-point)
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:hook
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(go-mode . siren-go-mode-setup)
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(go-dot-mod-mode . siren-go-dot-mod-mode-setup)
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(go-dot-work-mode . siren-go-dot-mod-mode-setup)
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:preface
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(defgroup siren-go nil
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"Siren: go-mode configuration."
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:group 'go)
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(defcustom siren-go-tab-width 4
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"Tab width to set in all Go related modes."
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:type 'number
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:group 'siren-go)
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(defun siren-go-mode-setup ()
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(setq-local tab-width siren-go-tab-width
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company-minimum-prefix-length 1)
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(when (fboundp 'highlight-symbol-mode)
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(highlight-symbol-mode -1))
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(when (fboundp 'auto-highlight-symbol-mode)
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(auto-highlight-symbol-mode -1)))
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(defun siren-go-dot-mod-mode-setup ()
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(run-hooks 'prog-mode-hook)
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(setq-local tab-width siren-go-tab-width))
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(defun siren-define-golines-format-mode ()
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"Setup and define golines formatter."
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(reformatter-define golines-format
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:program "golines"
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:args '("-t" "4" "-m" "80" "--no-reformat-tags")
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:lighter " GOLINES"))
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:init
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(with-eval-after-load 'projectile
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(add-to-list 'projectile-globally-ignored-directories "Godeps")
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(add-to-list 'projectile-globally-ignored-directories "vendor/github.com")
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(add-to-list 'projectile-globally-ignored-directories "vendor/gopkg.in"))
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(with-eval-after-load 'tree-sitter-langs
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(tree-sitter-hl-add-patterns 'go
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[
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;; Highlight built-in functions with the built-in face, based on:
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;; https://github.com/tree-sitter/tree-sitter-go/pull/61
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(call_expression
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function: (identifier) @function.builtin
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(.match? @function.builtin "^(append|cap|close|complex|copy|delete|imag|len|make|new|panic|print|println|real|recover)$"))
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;; Highlight struct/block keys as properties after field_identifier was
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;; removed from the Go parser:
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;; https://github.com/tree-sitter/tree-sitter-go/pull/71
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(keyed_element
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\.
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(literal_element (identifier)) @property)
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]))
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:config
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(siren-define-golines-format-mode)
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(define-key 'help-command (kbd "G") 'godoc)
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;; Ignore go test -c output files
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(add-to-list 'completion-ignored-extensions ".test"))
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(use-package lsp-go
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:straight lsp-mode
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:hook
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(go-mode . siren-lsp-go-mode-setup)
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:custom
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(lsp-go-use-placeholders t)
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(lsp-go-link-target "pkg.go.dev")
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(lsp-go-use-gofumpt t)
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(lsp-go-analyses '((nilness . t)
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(shadow . t)
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(unusedparams . t)
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(unusedvariable . t)
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(unusedwrite . t)
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(useany . t)))
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(lsp-go-codelenses '((gc_details . :json-false)
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(generate . t)
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(regenerate_cgo . t)
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(run_govulncheck . t)
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(tidy . t)
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(upgrade_dependency . t)
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(test . t)
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(vendor . t)))
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:config
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(lsp-register-custom-settings
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'(("gopls.hints" ((constantValues . t)))))
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:preface
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(defun siren-lsp-go-mode-setup ()
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;; Disable semantic tokens as it isn't support by gopls.
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(setq-local lsp-semantic-tokens-enable nil)
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(setq-local siren-lsp-manual-format-buffer-func
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'siren-lsp-go-manual-format-buffer)
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(lsp-format-buffer-on-save-mode t)
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(lsp-organize-imports-on-save-mode t)
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(lsp-deferred))
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(defun siren-lsp-go-manual-format-buffer ()
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(lsp-format-buffer)
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(golines-format-buffer)))
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(use-package lsp-golangci-lint
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:straight lsp-mode
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:custom
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(lsp-golangci-lint-server-debug nil))
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(use-package go-dlv
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:defer t)
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(use-package gotest
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:defer t
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:after (go-mode)
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:hook
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(go-mode . siren-gotest-setup)
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:general
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(:keymaps 'go-mode-map
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"C-c , a" 'go-test-current-project
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"C-c , v" 'go-test-current-file
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"C-c , s" 'go-test-current-test
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"C-c , c" 'go-test-current-coverage
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"C-c , b" 'go-test-current-benchmark
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"C-c , B" 'go-test-current-project-benchmarks
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"C-c , r" 'go-run
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"C-c , t" 'ff-find-other-file)
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:custom
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(go-test-verbose t)
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:preface
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(defun siren-gotest-setup ()
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(let ((extra-args "-count=1 -race"))
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(if (and (boundp 'go-test-args) go-test-args)
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(setq-local go-test-args (concat go-test-args " " extra-args))
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(setq-local go-test-args extra-args))))
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(defvar-local siren-gotest-golden-update nil
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"If non-nil, update golden files by setting GOLDEN_UPDATE=1 env var.")
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(defun siren-gotest-run (gotest-fun)
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"Run a Go test function with an optional prefix argument.
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If called with a prefix argument, set the variable
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siren-gotest-golden-update to t, which will update the golden
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files when running the test. Otherwise, set it to nil, which will
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compare the output with the existing golden files. The argument
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GOTEST-FUN should be a function that runs a Go test command."
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(interactive "P")
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;; (message "siren-gotest-run: ")
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;; (message gotest-fun)
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;; (message "prefix-arg: ")
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(message "siren-gotest-run: %s, prefix: " gotest-fun current-prefix-arg)
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(let ((siren-gotest-golden-update current-prefix-arg))
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(funcall gotest-fun)))
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(defun siren-gotest--get-program-advice(orig-fun args &optional env)
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"Advice to set the program to use for go test.
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When siren-gotest-golden-update is non-nil, add `GOLDEN_UPDATE=1' to env."
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(let ((env (if current-prefix-arg
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(cons "GOLDEN_UPDATE=1" env)
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env)))
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(apply orig-fun args env)))
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:config
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(advice-add 'go-test--get-program :around #'siren-gotest--get-program-advice)
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(when (not (version< emacs-version "28.0"))
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;; Change ff-other-file-name to ff-find-the-other-file in Emacs 28.x and
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;; later.
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(defun go-test--get-current-buffer ()
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"Return the test buffer for the current `buffer-file-name'.
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If `buffer-file-name' ends with `_test.go', `current-buffer' is returned.
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Otherwise, `ff-other-file-name' is used to find the test buffer.
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For example, if the current buffer is `foo.go', the buffer for
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`foo_test.go' is returned."
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(if (string-match "_test\.go$" buffer-file-name)
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(current-buffer)
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(let ((ff-always-try-to-create nil)
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(filename (ff-find-the-other-file)))
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(when filename
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(find-file-noselect filename)))))))
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(use-package dap-go
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:straight dap-mode
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:after go-mode
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:general
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(:keymaps 'dap-mode-map
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"C-c , d" 'siren-dap-go-debug-current-test)
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:preface
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(defun siren-dap-go-debug-current-test ()
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(interactive)
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(let ((name (go-test--get-current-test)))
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(dap-debug
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(list :type "go"
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:request "launch"
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:name (concat "Go: Debug " name " test")
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:mode "auto"
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:program "${fileDirname}"
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:buildFlags nil
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:args (concat "-test.run ^" name "$")
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:env nil
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:envFile nil)))))
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(use-package go-gen-test
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:defer t
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:after (go-mode)
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:general
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(:keymaps 'go-mode-map
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"C-c , g" 'go-gen-test-dwim
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"C-c , G" 'go-gen-test-exported))
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(use-package go-projectile
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:defer t
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:after (go-mode)
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:hook
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(go-mode . siren-go-projectile-setup)
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:custom
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;; prevent go-projectile from screwing up GOPATH
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(go-projectile-switch-gopath 'never)
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:preface
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(defun siren-go-projectile-setup ()))
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(use-package go-playground
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:defer t
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:hook
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(go-playground-mode . siren-go-playground-setup)
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:general
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(:keymaps 'go-playground-mode-map
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"C-c C-c" 'go-playground-exec
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"C-c k" 'go-playground-rm)
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:custom
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(go-playground-init-command "touch .projectile && go mod init playground")
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(go-playground-basedir
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(expand-file-name "src/playground" (or (getenv "GOPATH")
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"~/Projects/Go")))
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:preface
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(defun siren-go-playground-setup ()
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(if (fboundp 'solaire-mode)
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(solaire-mode -1))))
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(provide 'siren-golang)
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;;; siren-golang.el ends here
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