From 0520e2154fb6a7418663bdee839c3448d51b9ae4 Mon Sep 17 00:00:00 2001 From: Alexandre Julliard Date: Thu, 7 Feb 2008 13:51:34 +0100 Subject: [PATCH] git.el: Better handling of subprocess errors. Where possible, capture the output of the git command and display it if the command fails. Signed-off-by: Alexandre Julliard Signed-off-by: Junio C Hamano --- contrib/emacs/git.el | 88 +++++++++++++++++++++++++------------------- 1 file changed, 51 insertions(+), 37 deletions(-) diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el index e1058b9a9..a8bf0ef88 100644 --- a/contrib/emacs/git.el +++ b/contrib/emacs/git.el @@ -35,7 +35,6 @@ ;; ;; TODO ;; - portability to XEmacs -;; - better handling of subprocess errors ;; - diff against other branch ;; - renaming files from the status buffer ;; - creating tags @@ -191,6 +190,18 @@ if there is already one that displays the same directory." (append (git-get-env-strings env) (list "git") args)) (apply #'call-process "git" nil buffer nil args))) +(defun git-call-process-display-error (&rest args) + "Wrapper for call-process that displays error messages." + (let* ((dir default-directory) + (buffer (get-buffer-create "*Git Command Output*")) + (ok (with-current-buffer buffer + (let ((default-directory dir) + (buffer-read-only nil)) + (erase-buffer) + (eq 0 (apply 'call-process "git" nil (list buffer t) nil args)))))) + (unless ok (display-message-or-buffer buffer)) + ok)) + (defun git-call-process-env-string (env &rest args) "Wrapper for call-process that sets environment strings, and returns the process output as a string." @@ -377,7 +388,7 @@ and returns the process output as a string." (when reason (push reason args) (push "-m" args)) - (eq 0 (apply #'git-call-process-env nil nil "update-ref" args)))) + (apply 'git-call-process-display-error "update-ref" args))) (defun git-read-tree (tree &optional index-file) "Read a tree into the index file." @@ -866,16 +877,17 @@ Return the list of files that haven't been handled." (if (or (not (string-equal tree head-tree)) (yes-or-no-p "The tree was not modified, do you really want to perform an empty commit? ")) (let ((commit (git-commit-tree buffer tree head))) - (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil)) - (condition-case nil (delete-file ".git/MERGE_MSG") (error nil)) - (with-current-buffer buffer (erase-buffer)) - (git-update-status-files (git-get-filenames files) 'uptodate) - (git-call-process-env nil nil "rerere") - (git-call-process-env nil nil "gc" "--auto") - (git-refresh-files) - (git-refresh-ewoc-hf git-status) - (message "Committed %s." commit) - (git-run-hook "post-commit" nil)) + (when commit + (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil)) + (condition-case nil (delete-file ".git/MERGE_MSG") (error nil)) + (with-current-buffer buffer (erase-buffer)) + (git-update-status-files (git-get-filenames files) 'uptodate) + (git-call-process-env nil nil "rerere") + (git-call-process-env nil nil "gc" "--auto") + (git-refresh-files) + (git-refresh-ewoc-hf git-status) + (message "Committed %s." commit) + (git-run-hook "post-commit" nil))) (message "Commit aborted.")))) (message "No files to commit."))) (delete-file index-file)))))) @@ -986,9 +998,9 @@ Return the list of files that haven't been handled." ;; FIXME: add support for directories (unless files (push (file-relative-name (read-file-name "File to add: " nil nil t)) files)) - (apply #'git-call-process-env nil nil "update-index" "--add" "--" files) - (git-update-status-files files 'uptodate) - (git-success-message "Added" files))) + (when (apply 'git-call-process-display-error "update-index" "--add" "--" files) + (git-update-status-files files 'uptodate) + (git-success-message "Added" files)))) (defun git-ignore-file () "Add marked file(s) to the ignore list." @@ -1014,9 +1026,9 @@ Return the list of files that haven't been handled." (if (file-directory-p name) (delete-directory name) (delete-file name)))) - (apply #'git-call-process-env nil nil "update-index" "--remove" "--" files) - (git-update-status-files files nil) - (git-success-message "Removed" files)) + (when (apply 'git-call-process-display-error "update-index" "--remove" "--" files) + (git-update-status-files files nil) + (git-success-message "Removed" files))) (message "Aborting")))) (defun git-revert-file () @@ -1034,28 +1046,30 @@ Return the list of files that haven't been handled." ('unmerged (push (git-fileinfo->name info) modified)) ('modified (push (git-fileinfo->name info) modified)))) ;; check if a buffer contains one of the files and isn't saved - (dolist (file (append added modified)) + (dolist (file modified) (let ((buffer (get-file-buffer file))) (when (and buffer (buffer-modified-p buffer)) (error "Buffer %s is modified. Please kill or save modified buffers before reverting." (buffer-name buffer))))) - (when added - (apply #'git-call-process-env nil nil "update-index" "--force-remove" "--" added)) - (when modified - (apply #'git-call-process-env nil nil "checkout" "HEAD" modified)) - (git-update-status-files (append added modified) 'uptodate) - (dolist (file (append added modified)) - (let ((buffer (get-file-buffer file))) - (when buffer (with-current-buffer buffer (revert-buffer t t t))))) - (git-success-message "Reverted" (git-get-filenames files))))) + (let ((ok (and + (or (not added) + (apply 'git-call-process-display-error "update-index" "--force-remove" "--" added)) + (or (not modified) + (apply 'git-call-process-display-error "checkout" "HEAD" modified))))) + (git-update-status-files (append added modified) 'uptodate) + (when ok + (dolist (file modified) + (let ((buffer (get-file-buffer file))) + (when buffer (with-current-buffer buffer (revert-buffer t t t))))) + (git-success-message "Reverted" (git-get-filenames files))))))) (defun git-resolve-file () "Resolve conflicts in marked file(s)." (interactive) (let ((files (git-get-filenames (git-marked-files-state 'unmerged)))) (when files - (apply #'git-call-process-env nil nil "update-index" "--" files) - (git-update-status-files files 'uptodate) - (git-success-message "Resolved" files)))) + (when (apply 'git-call-process-display-error "update-index" "--" files) + (git-update-status-files files 'uptodate) + (git-success-message "Resolved" files))))) (defun git-remove-handled () "Remove handled files from the status list." @@ -1320,12 +1334,12 @@ amended version of it." (when (git-empty-db-p) (error "No commit to amend.")) (let* ((commit (git-rev-parse "HEAD")) (files (git-get-commit-files commit))) - (git-call-process-env nil nil "reset" "--soft" "HEAD^") - (git-update-status-files (copy-sequence files) 'uptodate) - (git-mark-files git-status files) - (git-refresh-files) - (git-setup-commit-buffer commit) - (git-commit-file))) + (when (git-call-process-display-error "reset" "--soft" "HEAD^") + (git-update-status-files (copy-sequence files) 'uptodate) + (git-mark-files git-status files) + (git-refresh-files) + (git-setup-commit-buffer commit) + (git-commit-file)))) (defun git-find-file () "Visit the current file in its own buffer." -- 2.30.2