#Emacs load path full
Regarding your third question, if emacs was launched from the desktop environment, it inherits the environment from it, which might be less complete than that of a full shell. Or using a loop (dolist (dir '("dir1" "dir2")) You can do it either manually (add-to-list 'exec-path "dir1") If you want to add multiple directories to exec-path, you should use Therefore, exec-path is what counts most for external processes which are started by emacs itself, whereas $PATH is what counts for commands you run yourself with higher-level function (using M-! for example) In order to execute this command, the shell will then try to find the executable in $PATH (and not in exec-path). However, a function such as shell-command starts the shell as a subprocess and passes it the command you want to run. When emacs starts a new external process using primitive functions such as call-process or start-process, the executable is searched in exec-path (and not $PATH) The package apparently starts a shell and imports environment variables from there, mimicing the environment you get from a shell in a globally-started Emacs. bashrc or similar, as that won't affect the "global" Emacs. This is especially annoying if you set environment variables in. This means that running Emacs from a shell will result in different environment variables being set than when you run it from the finder.
#Emacs load path mac os x
The problem on Mac OS X is that Mac OS does not set the environment the same when you call a program from the global UI or when you call it from a shell. This will add "PATH1" and "PATH2" to your exec-path, in that order. You can also use more "low-level" access to lists: (setq exec-path (append '("PATH1" "PATH2") Just call add-to-list repeatedly: (add-to-list 'exec-path "PATH1")ĭo note that add-to-list adds to the beginning of the list, so this will end up with "PATH2" being in the exec-path before "PATH1". But if you run a command, it will inherit PATH, not exec-path, so subprocesses can find different commands than Emacs does.Īs Francesco says, this can be especially confusing for shell-command, as that does not run a process directly, but calls a shell to run it, which will use PATH, not exec-path. Shell to print out the variables of interest, then copying them intoĮmacs does set exec-path from the value of PATH on startup, but will not look at it again later. This library works solves this problem by copying importantĮnvironment variables from the user's shell: it works by asking your GUI inherits a default set of environment variables. This happens a lot on OS X, where an Emacs instance started from the Why is there a need for a package for this?Įver find that a command works in your shell, but not in Emacs? I also found this interesting package on GitHub: exec-path-from-shell.
Or should I do: (add-to-list 'exec-path "PATH1:PATH2:PATH3") (add-to-list 'exec-path "PATH1", "PATH2") How can I prepend multiple such paths? Can I just keep concatenating them? e.g.
variable) at all (and if so, before or after exec-path?) In what order does Emacs search through the execution paths? For example, does it consider the value of $PATH (env. I am new to Elisp, and I think I understand what the statement above does, but I have a few questions: I have seen examples online where people add paths to the default path in Emacs with: (add-to-list 'exec-path "/usr/local/bin/")
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