问题
Using Subversion I try to commit with:
svn ci dir/filename
And I get this:
svn: system('emacs svn-commit.tmp') returned 256
What does this mean? How can I to fix it?
回答1:
When you try to commit something to Subversion, it needs a commit comment. Unless you pass a commit comment on the command line (using -m message), Subversion will automatically launch your preferred editor. It appears that your editor is emacs, but there is a problem launching it.
Either fix emacs, or set your EDITOR or SVN_EDITOR environment variables to a different editor that actually works.
回答2:
Possibly related: I'm seeing similar errors on vim when setting SVN_EDITOR without the qualifying the path. From your error output, I see you have done the same with emacs. Try export SVN_EDITOR=/usr/bin/emacs. Doing the same with /usr/bin/vim eliminated the 256 status codes.
I can't explain why. Seems like a bug to me.
See this 2009 discussion about vim on OSX 10.5.
回答3:
Looks like svn is not able to launch emacs for editing the comments for the commit.
If you just hava a few words of comments for your commit you could use:
svn ci dir/filename -m "Made some small changes"
another option might be to use the --editor-cmd option of svn. see svn help ci for details.
回答4:
googling svn: system('emacs svn-commit.tmp') returned 256 shows the following link as the first result.
http://jjinux.blogspot.com/2008/03/vim-weird-os-x-105-problem.html
回答5:
It sounds like SVN tried to invoke emacs to allow you to edit the commit log message, and something failed.
Workaround: use the -m flag to specify a commit message on the command line:
svn ci dir/filename -m "log message here"
来源：https://stackoverflow.com/questions/2008609/getting-error-trying-to-commit-using-subversion-on-mac-os-x