我的配置是从http://www.emacswiki.org/emacs/GnuGlobal#toc4复制的。目的是在我保存源文件后更新现有的标签文件。但是结果和预期的一样。
完整的配置是:
(gtags-mode 1)
(defun gtags-root-dir ()
"Returns GTAGS root directory or nil if doesn't exist."
(with-temp-buffer
(if (zerop (call-process "global" nil t nil "-pr"))
(buffer-substring (point-min) (1- (point-max)))
nil)))
(defun gtags-update-single(filename)
"Update Gtags database for changes in a single file"
(interactive)
(start-process "update-gtags" "update-gtags" "bash" "-c" (concat "cd " (gtags-root-dir) " ; gtags --single-update " filename )))
(defun gtags-update-current-file()
(interactive)
(defvar filename)
(setq filename (replace-regexp-in-string (gtags-root-dir) "." (buffer-file-name (current-buffer))))
(gtags-update-single filename)
(message "Gtags updated for %s" filename))
(defun gtags-update-hook()
"Update GTAGS file (insert )ncrementally upon saving a file"
(when gtags-mode ;;It is copy past error..
(when (gtags-root-dir)
(gtags-update-current-file))))
(add-hook 'after-save-hook 'gtags-update-hook)
更新
我的理解是标签将通过命令更新
(gtags-update-single filename)
(message "Gtags updated for %s" filename))
一旦缓冲区中的文件被保存。这意味着新添加或重命名或删除的功能将更新到标记文件。在我的测试中,我确实看到了输出消息(标签位于 ededemo 目录中):
Wrote /other/projectbase/cplusproject/ededemo/src/main.cpp
Gtags updated for ./src/main.cpp
每次函数在 cx cs 之后重命名或添加。但是 Mx gtags-find-tag 找不到我新添加的功能。理解有没有错误?