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purcell / exec-path-from-shell

Make Emacs use the $PATH set up by the user's shell
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Not working #25

Closed galderz closed 9 years ago

galderz commented 9 years ago

I'm having issues with my ZSH shell $PATH and the $PATH from within Emacs on OSX. I've created a Stackoverflow post where I explain all the details. I've tried using your module but it does not work, it changes nothing on the $PATH variable.

On top of that, running your module has the side effect of messing up or clearing my .zprofile settings of export TERM=xterm-256color since my theme appears with 16 colours when it runs.

purcell commented 9 years ago

exec-path-from-shell will run zsh like zsh -l -i -c ...' by default, so it will set $PATH in Emacs to the result of runningzsh -l -i -c 'echo $PATH'. You can try running that command directly inside Emacs usingM-!` to see what it outputs.

Re. $TERM, this module does nothing with that env var by default, so you'll need to look elsewhere for what's going on with that.

purcell commented 9 years ago

P.S. I'm also a zsh user, and have not experienced any of these issues, so most likely the problem is the particular way you've organised your zsh startup files.

srustamo commented 9 years ago

I have a similar problem. However, M-x ! echo $PATH returns a different result than M-x ! zsh -l -i -c 'echo $PATH'. Is this by design?

purcell commented 9 years ago

I have a similar problem. However, M-x ! echo $PATH returns a different result than M-x ! zsh -l -i -c 'echo $PATH'. Is this by design?

Before or after running exec-path-from-shell-initialize? What's the result of evaluating (getenv "SHELL")? More information is necessary here for me to provide any help here.

srustamo commented 9 years ago

I don't load exec-path-from-shell-initialize since it does not seem to set the correct path. (getenv "SHELL") returns "/usr/local/bin/zsh"

purcell commented 9 years ago

Your zsh config probably says something like PATH=$PATH:.... So any $PATH inside Emacs will be included in the output of zsh -c 'echo $PATH'. If that's the case, just set $PATH absolutely in your ~/.zshenv, without referring to the inherited $PATH, ie. do something like PATH=/usr/local/bin:/usr/bin:/bin.

srustamo commented 9 years ago

GNU Emacs 24.5.1 (x86_64-apple-darwin13.4.0, Carbon Version 157 AppKit 1265.21) of 2015-05-01

srustamo commented 9 years ago

I'm using oh-my-zsh config. I don't have .zshenv. However, my .zshrc has the following related to the PATH:

export PATH=/usr/local/bin:$PATH export PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH" export MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH" source $ZSH/oh-my-zsh.sh

Could you please elaborate on this statement: "..just set $PATH absolutely in your ~/.zshenv, without referring to the inherited $PATH, ie. do something like PATH=/usr/local/bin:/usr/bin:/bin."

srustamo commented 9 years ago

I also updated the .profile as follows:

export PATH=/usr/local/bin:$PATH export PATH=/usr/local/sbin:$PATH export SHELL="/usr/local/bin/zsh" export PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH" export MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH" if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi

purcell commented 9 years ago

When you start Emacs, it has some kind of $PATH. So then when you run zsh inside Emacs, your zsh config inserts that value of $PATH. Imagine $PATH in Emacs is "BLAH" -- then export PATH=/usr/local/bin:$PATH will set $PATH in zsh to /usr/local/bin:BLAH. So don't do that. Just set PATH in your zsh config to exactly the final value you want.

srustamo commented 9 years ago

I understand, I think, your logic.

But all $PATH values are set to be prepended, not appended in all rc files I use. This would make it impossible to have this value of PATH, because I'm prepending usr/local/bin:

/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/Cellar/fzf/0.9.4-1/bin:/usr/local/opt/coreutils/libexec/gnubin

The exec-path variable within Emacs is set to:

("/usr/local/Cellar/fzf/0.9.4-1/bin/" "/usr/local/opt/coreutils/libexec/gnubin/" "/usr/local/bin/" "/usr/bin/" "/bin/" "/usr/sbin/" "/sbin/" "/usr/local/bin/" "/usr/local/Cellar/emacs-mac/emacs-24.5-z-mac-5.7/libexec/emacs/24.5/x86_64-apple-darwin13.4.0/")

I.e. I don't see where Emacs takes usr/bin from at the beginning.

srustamo commented 9 years ago

Another piece to the puzzle:

  1. M x ! echo $PATH returns: /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/Cellar/fzf/0.9.4-1/bin:/usr/local/opt/coreutils/libexec/gnubin:/usr/local/sbin
  2. M x exec-path-from-shell-initialize M x ! echo $PATH returns: /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/opt/coreutils/libexec/gnubin:/usr/local/sbin:/usr/local/Cellar/fzf/0.9.4-1/bin
purcell commented 9 years ago

Emacs prepends certain elements of its own to its $PATH at startup. Nonetheless, if you set PATH=/usr/bin:/bin in your config, then run exec-path-from-shell-initialize, you will get that same value for $PATH in Emacs afterwards.

srustamo commented 9 years ago

Well, the issue is apparently related to path-helper in OS X. Details are here.