doomemacs/core/cli/env.el

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:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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;;; core/cli/env.el -*- lexical-binding: t; -*-
(defcli! env
((clear-p ["-c" "--clear"] "Clear and delete your envvar file")
(outputfile ["-o" PATH]
"Generate the envvar file at PATH. Envvar files that aren't in
`doom-env-file' won't be loaded automatically at startup. You will need to load
them manually from your private config with the `doom-load-envvars-file'
function."))
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"Creates or regenerates your envvars file.
:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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The envvars file is created by scraping the current shell environment into
newline-delimited KEY=VALUE pairs. Typically by running '$SHELL -ic env' (or
'$SHELL -c set' on windows). Doom loads this file at startup (if it exists) to
ensure Emacs mirrors your shell environment (particularly to ensure PATH and
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SHELL are correctly set).
:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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This is useful in cases where you cannot guarantee that Emacs (or the daemon)
will be launched from the correct environment (e.g. on MacOS or through certain
app launchers on Linux).
:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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This file is automatically regenerated when you run this command or 'doom sync'.
However, 'doom sync' will only regenerate this file if it exists.
:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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Why this over exec-path-from-shell?
1. `exec-path-from-shell' spawns (at least) one process at startup to scrape
your shell environment. This can be arbitrarily slow depending on the
user's shell configuration. A single program (like pyenv or nvm) or config
framework (like oh-my-zsh) could undo all of Doom's startup optimizations
in one fell swoop.
2. `exec-path-from-shell' only scrapes some state from your shell. You have to
be proactive in order to get it to capture all the envvars relevant to your
development environment.
I'd rather it inherit your shell environment /correctly/ (and /completely/)
or not at all. It frontloads the debugging process rather than hiding it
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until you least want to deal with it."
(let ((env-file (expand-file-name (or outputfile doom-env-file))))
(cond (clear-p
(unless (file-exists-p env-file)
(user-error! "%S does not exist to be cleared"
(path env-file)))
(delete-file env-file)
(print! (success "Successfully deleted %S")
(path env-file)))
(args
(user-error "I don't understand 'doom env %s'"
(string-join args " ")))
((doom-cli-reload-env-file 'force env-file)))))
:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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;;
;; Helpers
(defvar doom-env-ignored-vars
'("^DBUS_SESSION_BUS_ADDRESS$"
"^GPG_AGENT_INFO$"
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"^\\(SSH\\|GPG\\)_TTY$"
"^HOME$"
"^PS1$"
"^PWD$"
"^R?PROMPT$"
"^SSH_AGENT_PID$"
"^SSH_AUTH_SOCK$"
"^TERM$"
;; Doom envvars
"^DEBUG$"
"^INSECURE$"
"^YES$"
"^__")
"Environment variables to not save in `doom-env-file'.
Each string is a regexp, matched against variable names to omit from
`doom-env-file'.")
:boom: Replace exec-path-from-shell w/ 'bin/doom env' IMPORTANT: This is a breaking update for Mac users, as your shell environment will no longer be inherited correctly (with the removal of exec-path-from-shell). The quick fix is: 'bin/doom env refresh'. Also, the set-env! autodef now does nothing (and is deprecated), be sure to remove calls to it in your config. Smaller changes: + This update also adds --no-* switches to doom quickstart + Includes general improvements to the documentation of several bin/doom commands. + Moves doom/reload* commands to core/autoload/config.el + doom/reload-project has been removed (it didn't actually do anything) The breaking change: This update adds an "envvar file" to Doom Emacs. This file is generated by `doom env refresh`, populated with variables scraped from your shell environment (from both non-interactive and interactive sessions). This file is then (inexpensively) loaded at startup, if it exists. + The file is manually generated with `doom env refresh`. + It can be regenerated automatically whenever `doom refresh` is run by running `doom env enable` (`doom env clear` will reverse this and delete the env file). + `doom quickstart` will ask if you want to auto-generate this envvar file. You won't need it if you're confident Emacs will always be started from the correct environment, however. + Your env file can be reloaded from a running Emacs session with `M-x doom/reload-env`. Note: this won't work if the Emacs session you're running it in doesn't have a correct SHELL set. i.e. don't use this to create your first env file! The idea isn't mine -- it's borrowed from Spacemacs -- and was introduced to me in #1053 by @yurimx. I was impressed with it. Prior to this, I was unhappy with exec-path-from-shell (no hate to the dev, I understand its necessity), and 'doom patch-macos' wasn't ideal for mac users (needed to be reapplied every time you update Emacs). What's more, many users (even Linux users) had to install exec-path-from-shell anyway. This solution suffers from none of their shortcomings. More reliable than patch-macos, more performant and complete than exec-path-from-shell, and easily handled by bin/doom.
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(defun doom-cli-reload-env-file (&optional force-p env-file)
"Generates `doom-env-file', if it doesn't exist (or if FORCE-P).
This scrapes the variables from your shell environment by running
`doom-env-executable' through `shell-file-name' with `doom-env-switches'. By
default, on Linux, this is '$SHELL -ic /usr/bin/env'. Variables in
`doom-env-ignored-vars' are removed."
(let ((env-file (if env-file
(expand-file-name env-file)
doom-env-file)))
(when (or force-p (not (file-exists-p env-file)))
(with-temp-file env-file
(print! (start "%s envvars file at %S")
(if (file-exists-p env-file)
"Regenerating"
"Generating")
(path env-file))
(let ((process-environment doom--initial-process-environment))
(print! (info "Scraping shell environment"))
(print-group!
(when doom-interactive-mode
(user-error "'doom env' must be run on the command line, not an interactive session"))
(goto-char (point-min))
(insert
(concat
"# -*- mode: sh -*-\n"
"# ---------------------------------------------------------------------------\n"
"# This file was auto-generated by `doom env'. It contains a list of environment\n"
"# variables scraped from your default shell (excluding variables blacklisted\n"
"# in doom-env-ignored-vars).\n"
"#\n"
(if (file-equal-p env-file doom-env-file)
(concat "# It is NOT safe to edit this file. Changes will be overwritten next time you\n"
"# run 'doom sync'. To create a safe-to-edit envvar file use:\n#\n"
"# doom env -o ~/.doom.d/myenv\n#\n"
"# And load it with (doom-load-envvars-file \"~/.doom.d/myenv\").\n")
(concat "# This file is safe to edit by hand, but remember to preserve the null bytes at\n"
"# the end of each line! needs to be loaded manually with:\n#\n"
"# (doom-load-envvars-file \"path/to/this/file\")\n#\n"
"# Use 'doom env -o path/to/this/file' to regenerate it."))
"# ---------------------------------------------------------------------------\n\0\n"))
;; We assume that this noninteractive session was spawned from the
;; user's interactive shell, therefore we just dump
;; `process-environment' to a file.
(dolist (env process-environment)
(if (cl-find-if (doom-rpartial #'string-match-p (car (split-string env "=")))
doom-env-ignored-vars)
(print! (info "Ignoring %s") env)
(insert env "\0\n")))
(print! (success "Successfully generated %S")
(path env-file))
t))))))