7c9f612c4f
Since bash will source different files depending on its mode, for instance login vs. non-login shells, we fetch the env vars from both a login shell and an interactive non-login shell. We try to cleanup the resulting file by removing duplicates, sorting env vars etc...
126 lines
5.7 KiB
EmacsLisp
126 lines
5.7 KiB
EmacsLisp
;;; core-env.el --- Spacemacs Core File
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;;
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;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
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;;
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;; Author: Sylvain Benner <sylvain.benner@gmail.com>
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;; URL: https://github.com/syl20bnr/spacemacs
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;;
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;; This file is not part of GNU Emacs.
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;;
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;;; License: GPLv3
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(require 'core-dotspacemacs)
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(require 'load-env-vars)
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(defvar spacemacs-env-vars-file
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(concat (or dotspacemacs-directory user-home-directory) ".spacemacs.env")
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"Absolute path to the env file where environment variables are set.")
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(defvar spacemacs-ignored-environment-variables
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'(
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"DBUS_SESSION_BUS_ADDRESS"
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"GPG_AGENT_INFO"
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"SSH_AGENT_PID"
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"SSH_AUTH_SOCK"
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)
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"Ignored environments variables. This env. vars are not import in the
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`.spacemacs.env' file.")
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(defvar spacemacs--spacemacs-env-loaded nil
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"non-nil if `spacemacs/load-spacemacs-env' has been called at least once.")
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(defun spacemacs//init-spacemacs-env (&optional force)
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"Attempt to fetch the environment variables from the users shell.
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This solution is far from perfect and we should not rely on this function
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a lot. We use it only to initialize the env file when it does not exist
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yet.
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If FORCE is non-nil then force the initialization of the file, note that the
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current contents of the file will be overwritten."
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(when (or force (not (file-exists-p spacemacs-env-vars-file)))
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(with-temp-file spacemacs-env-vars-file
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(let ((shell-command-switches (cond
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((or(eq system-type 'darwin)
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(eq system-type 'gnu/linux))
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;; execute env twice, once with a
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;; non-interactive login shell and
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;; once with an interactive shell
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;; in order to capture all the init
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;; files possible.
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'("-lc" "-ic"))
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((eq system-type 'windows-nt) '("-c"))))
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(executable (cond ((or(eq system-type 'darwin)
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(eq system-type 'gnu/linux)) "env")
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((eq system-type 'windows-nt) "set"))))
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(insert
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(concat
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"# ---------------------------------------------------------------------------\n"
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"# Spacemacs environment variables\n"
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"# ---------------------------------------------------------------------------\n"
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"# This file has been generated by Spacemacs. It contains all found environment\n"
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"# variables defined in your default shell except the black listed variables\n"
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"# defined in `spacemacs-ignored-environment-variables'. Some variables may be\n"
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"# listed twice, the last one is effective except for the PATH variables.\n"
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"# All PATH values are added to the `exec-path' variable without duplicates.\n"
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"#\n"
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"# You can safely edit this file and tweak the values or remove the duplicates,\n"
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"# Spacemacs won't overwite it unless you call the function\n"
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"# `spacemacs/force-init-spacemacs-env'.\n"
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"#\n"
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"# If you don't want to use this file and manage your environment variables\n"
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"# yourself then remove the call to `spacemacs/load-spacemacs-env' from your\n"
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"# `dotspacemacs/user-env' function in your dotfile and replace it with your\n"
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"# own initialization code. You can use `exec-path-from-shell' if you add it\n"
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"# to your additional packages or simply use `setenv' and\n"
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"# `(add-to-list 'exec-path ...)' which are built-in.\n"
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"#\n"
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"# It is recommended to get used to this file as it unambiguously and\n"
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"# explicitly set the values of your environment variables.\n"
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"# ---------------------------------------------------------------------------\n"
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"\n"
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"# Environment variables:\n"
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"# ----------------------\n"))
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(let ((env-point (point)))
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(dolist (shell-command-switch shell-command-switches)
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(insert (shell-command-to-string executable)))
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;; sort the environment variables
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(sort-lines nil env-point (point-max))
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;; remove adjacent duplicated lines
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(delete-duplicate-lines env-point (point-max) nil t)
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;; remove ignored environment variables
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(dolist (v spacemacs-ignored-environment-variables)
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(flush-lines v env-point (point-max))))))
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(spacemacs-buffer/warning
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(concat "Spacemacs has imported your environment variables from "
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"your shell and saved them to `%s'.\n"
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"Open this file for more info (SPC f e e) or call "
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"`spacemacs/edit-env' function.")
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spacemacs-env-vars-file)))
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(defun spacemacs/force-init-spacemacs-env ()
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"Forces a reinitialization of environment variables."
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(interactive)
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(spacemacs//init-spacemacs-env t))
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(defun spacemacs/edit-env ()
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"Open the env file for edition."
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(interactive)
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(if (and spacemacs--spacemacs-env-loaded
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(file-exists-p spacemacs-env-vars-file))
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(progn
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(find-file spacemacs-env-vars-file)
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(when (fboundp 'dotenv-mode)
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(dotenv-mode)))
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;; fallback to the dotspacemacs/user-env
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(dotspacemacs/go-to-user-env)))
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(defun spacemacs/load-spacemacs-env (&optional force)
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"Load the environment variables from the `.spacemacs.env' file.
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If FORCE is non-nil then force the loading of environment variables from env.
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file."
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(interactive "P")
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(setq spacemacs--spacemacs-env-loaded t)
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(when (or force (display-graphic-p))
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(spacemacs//init-spacemacs-env)
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(load-env-vars spacemacs-env-vars-file)))
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(provide 'core-env)
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