2014-10-23 16:44:23 +02:00
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;; Go
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2016-01-27 08:55:19 +01:00
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2017-06-19 20:26:20 +02:00
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;; REVIEW: We should not need to use `use-local-map' here.
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;; Reported at https://github.com/dominikh/go-mode.el/issues/191.
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2017-05-15 07:46:20 +02:00
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(use-local-map go-mode-map)
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2017-06-16 21:33:53 +02:00
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(local-set-keys
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"C-c m" 'go-main
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"C-c D" 'godoc
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"C-c d" 'godoc-at-point
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"M-." #'godef-jump
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2017-06-18 17:18:56 +02:00
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"<f5>" 'go-metalinter
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2017-09-14 17:52:24 +02:00
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"C-<f5>" 'go-metalinter-command)
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2017-05-15 07:46:20 +02:00
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(when (require 'helm-go-package nil t)
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(local-set-key (kbd "C-c D") 'helm-go-package))
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(when (require 'company-go nil t)
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2017-06-16 16:29:52 +02:00
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(add-hook 'go-mode-hook 'company-mode)
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2017-05-15 07:46:20 +02:00
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(add-to-list 'company-backends 'company-go)
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2017-05-21 23:53:55 +02:00
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(local-set-key (kbd "M-TAB") (if (require 'helm-company nil t) 'helm-company 'company-complete)))
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2017-05-15 07:46:20 +02:00
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2016-10-08 05:19:42 +02:00
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(setq gofmt-command "goimports")
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(setq godoc-command "godoc -ex")
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(setq godoc-and-godef-command "godoc -ex")
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2017-05-11 19:38:01 +02:00
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(defvar-local gometalinter-args
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2017-05-07 19:03:00 +02:00
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(mapconcat
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'identity
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'("--cyclo-over=20 --deadline=20s"
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;; Ignore some benign errors.
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2017-08-31 20:47:49 +02:00
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"-e 'declaration of \"?err\"? shadows'"
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2017-05-07 19:03:00 +02:00
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"-e 'error return value not checked \\(.*\\.Close\\(\\)'"
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;; Customize linters.
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"-E misspell"
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"-E unparam"
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"-E unused"
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;; gofmt is only useful if not called on save with '-s'
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;; (goimports does not do this) and for its first rule not
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;; superseded by gosimple or solint:
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;; https://golang.org/cmd/gofmt/#hdr-The_simplify_command
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"-E gofmt")
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" ") "Additional arguments to pass to gometalinter.")
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2017-05-11 19:38:28 +02:00
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(defun go-metalinter (arg)
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2017-09-14 17:52:24 +02:00
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"Run gometalinter.
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With prefix argument, prompt for commandline."
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2017-05-11 19:38:28 +02:00
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(interactive "P")
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(let ((compile-command (format "gometalinter %s" gometalinter-args)))
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(if arg
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(call-interactively 'compile)
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(compile compile-command))))
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2017-09-14 17:52:24 +02:00
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(defun go-metalinter-command ()
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"Prompt for gometalinter commandline and run it."
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(interactive)
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(go-metalinter t))
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2016-10-08 05:19:42 +02:00
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(defun go-set-compile-command ()
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"Set `compile-command' depending on the context.
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2016-12-11 06:15:54 +01:00
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2016-10-08 05:19:42 +02:00
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- go install: file is in GOPATH and is not a test file.
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- go test: file is in GOPATH and is a test file.
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2016-12-11 06:15:54 +01:00
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- go run `buffer-file-name': file is not in GOPATH.
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2016-11-23 07:50:03 +01:00
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Note that the -cover test flag is left out since it shifts line numbers."
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2015-12-09 01:02:23 +01:00
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(interactive)
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2017-05-12 08:34:17 +02:00
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(setq compile-command
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2017-06-16 16:29:52 +02:00
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(if (go-buffer-in-gopath-p)
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(if (string-match "_test.[gG][oO]$" buffer-file-name)
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"go test -v -run ."
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"go install")
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(concat "go run " (shell-quote-argument buffer-file-name)))))
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2015-12-09 01:02:23 +01:00
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2016-06-03 12:04:46 +02:00
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(defun go-buffer-in-gopath-p ()
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2016-07-19 12:00:52 +02:00
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(if (not buffer-file-name)
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nil
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2016-10-05 06:57:29 +02:00
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(let ((dir (expand-file-name (file-name-directory buffer-file-name))) (looping t) (gopath (split-string (getenv "GOPATH") ":")))
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2016-07-19 12:00:52 +02:00
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(while (progn
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2016-10-05 06:57:29 +02:00
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(if (member dir gopath)
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2016-07-19 12:00:52 +02:00
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(setq looping nil)
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(setq dir (expand-file-name ".." dir)))
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(and looping (not (string= dir "/")))))
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(if (string= dir "/") nil t))))
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2016-06-02 22:28:00 +02:00
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2016-10-06 14:37:53 +02:00
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(when (require 'go-guru nil t)
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(unless (executable-find "guru")
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2017-06-16 16:29:52 +02:00
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;; Requires `call-process-to-string' from `functions'."
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2016-10-06 14:37:53 +02:00
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(require 'functions)
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(setq go-guru-command
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(concat (replace-regexp-in-string "\n$" "" (call-process-to-string "go" "env" "GOTOOLDIR")) "/guru"))))
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2017-05-28 12:03:28 +02:00
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(defun go-turn-on-gofmt-before-save ()
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(add-hook 'before-save-hook #'gofmt-before-save nil t))
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2017-06-16 16:29:52 +02:00
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(add-hook 'go-mode-hook 'go-turn-on-gofmt-before-save)
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2017-05-28 12:03:28 +02:00
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(when (require 'go-eldoc nil t)
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2017-06-16 16:29:52 +02:00
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(add-hook 'go-mode-hook 'go-eldoc-setup))
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2017-05-28 12:03:28 +02:00
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2017-06-16 16:29:52 +02:00
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(add-hook 'go-mode-hook 'go-set-compile-command)
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2017-05-28 12:03:28 +02:00
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(defun godoc-setup ()
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2017-06-16 16:29:52 +02:00
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(setq tab-width 8))
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2017-05-28 12:03:28 +02:00
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(add-hook 'godoc-mode-hook 'godoc-setup)
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2014-10-23 16:44:23 +02:00
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(define-skeleton go-main
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"Insert main function with basic includes."
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nil
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2014-10-31 13:08:44 +01:00
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> "package main" "\n" \n
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"import (" \n
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"\"fmt\"" \n
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")" > "\n" \n
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2014-10-31 13:20:11 +01:00
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"func main() {" \n
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2014-10-31 13:08:44 +01:00
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> @ _ \n
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"}" > \n)
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2014-10-23 16:44:23 +02:00
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2017-06-18 18:50:31 +02:00
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(provide 'init-go)
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