'selfupdate' failed even antigen is installed using git clone

[wangyandongnx]

»  zsh --version                                                          
zsh 5.0.5 (i686-pc-linux-gnu)
-----
» zsh --version                                                             
zsh 5.0.5 (x86_64-apple-darwin14.0)

I installed antigen using git clone. When running the antigen selfupdate command, it gives this error

Your copy of antigen doesn't appear to be a git clone. 
The 'selfupdate' command cannot work in this case.

[desyncr]

The selfupdate command basically executes a git pull on $_ANTIGEN_INSTALL_DIR. What's the value of that environment variable? Check that it matches the path where you cloned antigen.

Hope that helps!

[wangyandongnx]

Actually _ANTIGEN_INSTALL_DIR is not available after antigen.sh is evaluated:

wangyandong@wangyandong-osx ~
» echo $_ANTIGEN_INSTALL_DIR                                                                                        1 ↵

wangyandong@wangyandong-osx ~
»

» cd $_ANTIGEN_INSTALL_DIR will navigate to the home directory.

[desyncr]

Of course, as $_ANTIGEN_INSTALL_DIR is a local variable on the antigen command. Thought you could debug antigen.zsh and check there the value of this variable.

[wangyandongnx]

Thanks for your reply.

I add the debug line within the antigen-selfupdate function itself

antigen-selfupdate () {
    echo "==> $_ANTIGEN_INSTALL_DIR"
    ( cd $_ANTIGEN_INSTALL_DIR
        if [[ ! ( -d .git || -f .git ) ]]; then
            echo "Your copy of antigen doesn't appear to be a git clone. " \
                "The 'selfupdate' command cannot work in this case."
            return 1
        fi
...

and it still gives the same error

wangyandong@wangyandong-osx ~
» antigen selfupdate                                                                                                1 ↵
==>
Your copy of antigen doesn't appear to be a git clone.  The 'selfupdate' command cannot work in this case.

[desyncr]

It looks as if $_ANTIGEN_INSTALL_DIR was empty. Do this: Add the following lines to antigen.zsh:

echo $0
echo $(dirname "$0")

After this line. In my set up it prints:

/home/<username>/.antigen//antigen.zsh
/home/<username>/.antigen

Are you using tmux? It some times messes up with env variables.

[wangyandongnx]

I'm not using tmux now.

echo $0
echo $(dirname "$0")

gives expected results

/Users/wangyandong/.antigen/antigen.zsh
/Users/wangyandong/.antigen

I think I've found the problem. antigen.sh is sourced within a function I defined in my dotfiles. After moving the source /<path_to_antigen>/antigen.sh line out of the function, it works fine now.

Thank you.