164 lines
4.8 KiB
EmacsLisp
164 lines
4.8 KiB
EmacsLisp
;;==============================================================================
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;; Shell
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;;==============================================================================
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(defvaralias 'sh-indentation 'sh-basic-offset)
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(setq sh-indent-comment t)
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(set (make-local-variable 'sh-shell-file) "/bin/sh") ; Useful for the first time this hook is loaded.
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(setq-default sh-shell-file sh-shell-file)
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;; (setq-default sh-shell 'sh)
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(defun sh-set-interpreter ()
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"Set shell interpreter.
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Set `sh-shell', `sh-shell-file' and `compile-command' according to the following rules:
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- Look at shabang.
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- If file has no name, use default value of sh-shell-file.
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- Check extension or file name.
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- If none of the above yields a result, use default value of
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sh-shell-file.
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The advantages of this function over the vanilla code are:
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- You can change default value of sh-shell-file in sh-mode-hook
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and it will be used subsequently.
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- Zsh is supported
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- compile-command is set.
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- Once sh-shell is set, sh-shell-file is changed accordingly. In
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default Emacs, sh-shell-file is always the same."
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(interactive)
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(sh-set-shell
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(cond ((save-excursion
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(goto-char (point-min))
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(looking-at "#![ \t]?\\([^ \t\n]*/bin/env[ \t]\\)?\\([^ \t\n]+\\)"))
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(match-string 2))
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((not buffer-file-name) sh-shell-file)
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;; Checks that use `buffer-file-name' follow.
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((string-match "\\.m?spec\\'" buffer-file-name) "rpm")
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((string-match "[.]bash\\>" buffer-file-name) "bash")
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((string-match "[.]csh\\>" buffer-file-name) "csh")
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((string-match "[.]ksh\\>" buffer-file-name) "ksh")
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((string-match "[.]sh\\>" buffer-file-name) "sh")
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((string-match "[.]zsh\\>" buffer-file-name) "zsh")
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((equal (file-name-nondirectory buffer-file-name) ".profile") "sh")
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(t sh-shell-file))
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nil nil)
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;; Universal version.
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; (setq sh-shell-file (executable-find (symbol-name sh-shell)))
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;; Convenient version.
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(setq sh-shell-file (concat "/bin/" (symbol-name sh-shell)))
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(set (make-local-variable 'compile-command) (concat sh-shell-file " " buffer-file-name)))
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;; sh-set-shell partly resets some of the font-lock config. We use this
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;; workaround to restore it.
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(add-hook-and-eval 'sh-set-shell-hook
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(lambda () (font-lock-add-keywords
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'sh-mode
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'(("\\<\\(FIXME\\):" 1 font-lock-warning-face prepend)
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("\\<\\(TODO\\):" 1 font-lock-warning-face prepend)
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("\\<\\(WARNING\\):" 1 font-lock-warning-face prepend)))))
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(add-hook-and-eval
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'sh-mode-hook
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(lambda ()
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(set (make-local-variable 'defun-prompt-regexp)
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(concat "^\\(function[ \t]\\|[[:alnum:]_]+[ \t]+()[ \t]+\\)"))
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(sh-set-interpreter)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define-skeleton sh-check
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"Insert a function checking for presence in PATH."
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nil
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"check()
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{
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for i ; do
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if ! command -v $i >/dev/null 2>&1; then
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echo \"'$i' not found in PATH. Exiting.\" >&2
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exit 1
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fi
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done
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}
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")
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(define-skeleton sh-command
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"Insert a line that executes if command is found in path."
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"Command name: "
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> "command -v " @ str " >/dev/null 2>&1 && " @ _)
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(define-skeleton sh-command-or-die
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"Insert a line that quits if command is not found in path."
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"Command name: "
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> "if ! command -v " @ str " >/dev/null 2>&1; then" \n
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> "echo '" str " not found in PATH. Exiting.' >&2" \n
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> "exit 1" \n
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"fi" > \n)
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(define-skeleton sh-for
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"Insert a for loop. See `sh-feature'. This overrides vanilla function."
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"Index variable: "
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> "for " str | "i"
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'(setq v1 (skeleton-read "Index values: " ""))
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(unless (string= v1 "")
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(concat " in " v1))
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"; do" \n
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> _ \n
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"done" > \n)
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(define-skeleton sh-ifcommand
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"Insert a test to check if command is found in path."
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"Command name: "
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> "if command -v " @ str " >/dev/null 2>&1; then" \n
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> @ _ \n
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"fi" > \n)
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(define-skeleton sh-redirect-to-null
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"Insert a null redirection."
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nil
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">/dev/null 2>&1")
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(define-skeleton sh-while-getopts
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"Insert a getops prototype."
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"optstring: "
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> "usage ()
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{
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cat<<EOF
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Usage: ${1##*/} [OPTIONS] FILES
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Options:
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-h: Show this help.
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EOF
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}" \n
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\n
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> "while getopts :" str " OPT; do" \n
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> "case $OPT in" \n
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'(setq v1 (append (vconcat str) nil))
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( (prog1 (if v1 (char-to-string (car v1)))
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(if (eq (nth 1 v1) ?:)
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(setq v1 (nthcdr 2 v1)
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v2 "\"$OPTARG\"")
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(setq v1 (cdr v1)
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v2 nil)))
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> str ")" \n
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> _ v2 " ;;" \n)
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> "?)" \n
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> "usage \"$0\"" \n
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"exit 1 ;;" > \n
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"esac" > \n
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"done" > \n \n
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"shift $(($OPTIND - 1))" \n
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"if [ $# -eq 0 ]; then
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usage \"$0\"
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exit 1
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fi" \n)
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(define-skeleton sh-while-read
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"Insert a while read loop."
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nil
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> "while IFS= read -r i; do" \n
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> @ _ \n
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> "done <<EOF" \n
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> "EOF" \n)
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(provide 'mode-sh)
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