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config.phundrak.com/docs/shell.org
Lucien Cartier-Tilet 05808c98af
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docs(shell, scripts): move dotfiles out of $HOME
2024-02-21 04:40:08 +01:00

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#+title: General Shell Configuration
#+setupfile: headers
#+PROPERTY: header-args:sh :mkdirp yes :tangle ~/.profile :exports code :noweb yes :shebang #!/bin/sh
#+PROPERTY: header-args :exports code :tangle no
* General Shell Configuration
As you may have noticed with my [[file:./fish.md][Fish configuration]], my main shell is
Fish, not Bash or Zsh. But sometimes, I do need to use these instead
of Fish. In order to share some common configuration, I have a rather
rich =$HOME/.profile= file which mainly exports environment variables.
Despite the fact Fish is not a POSIX shell and should not be able to
read it, the plugin =foreign-env= comes in handy to load this =.profile=
from fish, as you can see [[file:./fish.md#global-variables][in my fish config]].
The correctness and POSIX compatibility of this file is verified using
[[https://www.shellcheck.net/][shellcheck]].
Before we go into the meaty stuff, let me first load some private
configuration I cannot share online.
#+begin_src sh
# shellcheck source=/dev/null
. "$HOME"/.profile.private
#+end_src
** Personal Information
First of all, here I set some information in order to make some stufff
work.
#+name: personal-info
| Variable | Value |
|----------+------------------------|
| =EMAIL= | =lucien@phundrak.com= |
| =NAME= | ="Lucien Cartier-Tilet"= |
#+begin_src sh
<<export-variables(personal-info)>>
#+end_src
** XDG variables
Then, let me set some XDG variables that may not be set by default,
but are still quite useful.
#+name: xdg-variables
| Variable | Value |
|-----------------+----------------------|
| =XDG_CACHE_HOME= | ="$HOME"/.cache= |
| =XDG_CONFIG_HOME= | ="$HOME"/.config= |
| =XDG_DATA_HOME= | ="$HOME"/.local/share= |
| =XDG_STATE_HOME= | ="$HOME"/.local/state= |
#+begin_src sh
<<export-variables(xdg-variables)>>
#+end_src
** Dev
Here are some variables that are quite useful.
#+name: dev-variables
| Variable | Value | Value is a command? |
|-----------------+--------------------------------------+---------------------|
| =SSH_AUTH_SOCK= | =gpgconf --list-dirs agent-ssh-socket= | yes |
| =LD_LIBRARY_PATH= | ="$LD_LIBRARY_PATH":/usr/local/lib= | |
| =LSP_USE_PLISTS= | =true= | |
| =DIFFPROG= | =ediff= | |
| =SUDO_ASKPASS= | ="$HOME"/.local/bin/askpass= | |
| =MANPAGER= | =less= | |
- =SSH_AUTH_SOCK= :: allows me to use my local GPG keys when SSHing into a
remote host that may not have a gpg agent. It tells SSH which sock
to use, sock which allows SSH to interact with other software, here
GPG.
- =LD_LIBRARY_PATH= :: path of libraries that may be included by
compilers such as GCC.
- =LSP_USE_PLISTS= :: optimisation for LSP servers with Emacs.
- =DIFFPROG= :: program used by software that wants to diff two files,
such as git. It uses my script [[file:./scripts.md#ediff][ediff]].
- =SUDO_ASKPASS= :: which script to call when calling =sudo -A=. It uses
my script [[file:./scripts.md#askpass][askpass]].
#+begin_src sh
<<export-variables(dev-variables)>>
#+end_src
*** Android development
I’m not sure why I keep these, honestly.
#+name: android
| Variable | Value |
|-------------------+---------------------|
| =DART_SDK= | =/opt/dart-sdk/bin= |
| =ANDROID_HOME= | ="$HOME"/Android/Sdk= |
| =CHROME_EXECUTABLE= | =/usr/bin/chromium= |
#+begin_src sh
<<export-variables(android)>>
#+end_src
*** Compatibility issues with =MANPAGER=
Due to compatibility issues with using =less= as the pager for man, some
variables must be redefined.
#+name: less-termcap
| Variable | Value | Value is a command? |
|-----------------+---------------------+---------------------|
| =LESS_TERMCAP_mb= | =printf '\e[1;32m'= | yes |
| =LESS_TERMCAP_md= | =printf '\e[1;32m'= | yes |
| =LESS_TERMCAP_me= | =printf '\e[0m'= | yes |
| =LESS_TERMCAP_se= | =printf '\e[0m'= | yes |
| =LESS_TERMCAP_so= | =printf '\e[01;33m'= | yes |
| =LESS_TERMCAP_ue= | =printf '\e[0m'= | yes |
| =LESS_TERMCAP_us= | =printf '\e[1;4;31m'= | yes |
#+begin_src sh
<<export-variables(less-termcap)>>
#+end_src
** Preferences
*** Browser
It’s always nice to have the =BROWSER= variable available in case you
want to do stuff with scripts and your default browser.
#+name: browser
| Variable | Value |
|----------+---------|
| =BROWSER= | =firefox= |
#+begin_src sh
<<export-variables(browser)>>
#+end_src
*** Editor variables
My favourite text editor is [[https://www.gnu.org/software/emacs/][Emacs]], in case [[file:emacs/index.md][you haven’t guessed
already]]. It makes sense that both my =EDITOR= and =VISUAL= variables
should be set to Emacs.
#+name: editor
| Variable | Value |
|----------+------------------|
| =EDITOR= | ="emacsclient -c"= |
| =VISUAL= | ="emacsclient -c"= |
#+begin_src sh
<<export-variables(editor)>>
#+end_src
*** GTK Theme
These are some important variables regarding the GTK theme I use.
#+name: gtk
| Variable | Value |
|----------------+-------------------|
| =GTK_THEME= | =Nordic= |
| =GTK_ICON_THEME= | ="Flat-Remix-Dark"= |
#+begin_src sh
<<export-variables(gtk)>>
#+end_src
** Cleaning up my home directory
Home directories tend to become cluttered over time, especially when
developers tend to not care about the XDG standard and throw their
app’s files into =$HOME= rather than in =XDG_CACHE_HOME=, =XDG_CONFIG_HOME=,
and so on. Fortunately, some software allow us to move their data
elsewhere, so let’s teach them some manners.
#+name: cleanup-variables
| Variable | Value |
|-----------------------------+--------------------------------------------------------------------------------------------------|
| =__GL_SHADER_DISK_CACHE_PATH= | ="$XDG_CACHE_HOME"/nv= |
| =_JAVA_OPTIONS= | ="-Djava.util.prefs.userRoot=${XDG_CONFIG_HOME}/java -Djavafx.cachedir=${XDG_CACHE_HOME}/openjfx"= |
| =_Z_DATA= | ="$XDG_DATA_HOME"/z= |
| =BUNDLE_USER_CACHE= | ="$XDG_CACHE_HOME"/bundle= |
| =BUNDLE_USER_CONFIG= | ="$XDG_CONFIG_HOME"/bundle= |
| =BUNDLE_USER_PLUGIN= | ="$XDG_DATA_HOME"/bundle= |
| =CARGO_HOME= | ="$XDG_DATA_HOME"/cargo= |
| =CUDA_CACHE_PATH= | ="$XDG_CACHE_HOME"/nv= |
| =DENO_DIR= | ="$HOME"/.config/deno= |
| =DENO_INSTALL_ROOT= | ="$HOME"/.local/bin/deno= |
| =DOCKER_CONFIG= | ="$XDG_CONFIG_HOME"/docker= |
| =GEM_HOME= | ="$XDG_DATA_HOME"/gem= |
| =GEM_SPEC_CACHE= | ="$XDG_CACHE_HOME"/gem= |
| =GNUPGHOME= | ="$XDG_DATA_HOME"/gnupg= |
| =GOPATH= | ="$XDG_DATA_HOME"/go= |
| =GTK2_RC_FILES= | ="$XDG_CONFIG_HOME"/gtk-2.0/gtkrc= |
| =HISTFILE= | ="$XDG_STATE_HOME/bash/history"= |
| =ICEAUTHORITY= | ="$XDG_CACHE_HOME"/ICEauthority= |
| =LESSHISTFILE= | ="$XDG_CACHE_HOME"/less/history= |
| =MBSYNCRC= | ="$XDG_CONFIG_HOME"/isync/mbsyncrc= |
| =MPLAYER_HOME= | ="$XDG_CONFIG_HOME"/mplayer= |
| =MYPY_CACHE_DIR= | ="$XDG_CACHE_HOME"/mypy= |
| =NPM_CONFIG_USERCONFIG= | ="$XDG_CONFIG_HOME"/npm/npmrc= |
| =NUGET_PACKAGES= | ="$XDG_CACHE_HOME"/NuGetPackages= |
| =NVM_DIR= | ="$XDG_DATA_HOME"/nvm= |
| =PARALLEL_HOME= | ="$XDG_CONFIG_HOME"/parallel= |
| =PASSWORD_STORE_DIR= | ="$XDG_DATA_HOME"/pass= |
| =PKG_CACHE_PATH= | ="$XDG_CACHE_HOME"/pkg-cache= |
| =PSQL_HISTORY= | ="$XDG_DATA_HOME/psql_history"= |
| =PYENV_ROOT= | ="$XDG_DATA_HOME"/pyenv= |
| =PYLINTHOME= | ="$XDG_CACHE_HOME"/pylint= |
| =PYTHONSTARTUP= | ="$HOME"/python/pythonrc= |
| =RUSTUP_HOME= | ="$XDG_DATA_HOME"/rustup= |
| =SQLITE_HISTORY= | ="$XDG_CACHE_HOME"/sqlite_history= |
| =TERMINFO= | ="$XDG_DATA_HOME"/terminfo= |
| =TERMINFO_DIRS= | ="$XDG_DATA_HOME"/terminfo:/usr/share/terminfo= |
| =TEXMFVAR= | ="$XDG_CACHE_HOME"/texlive/texmf-var= |
| =W3M_DIR= | ="$XDG_DATA_HOME"/w3m= |
| =WINEPREFIX= | ="$XDG_DATA_HOME"/wine= |
| =XAUTHORITY= | ="$XDG_RUNTIME_DIR"/Xauthority= |
| =XCOMPOSEFILE= | ="$XDG_CONFIG_HOME"/X11/xcompose= |
| =XCURSOR_PATH= | =/usr/share/icons:$XDG_DATA_HOME/icons= |
| =GRADLE_USER_HOME= | ="$XDG_DATA_HOME"/gradle= |
| =DOTNET_CLI_HOME= | ="$XDG_DATA_HOME"/dotnet= |
| =CUDA_CACHE_PATH= | ="$XDG_CACHE_HOME"/nv= |
| =ANDROID_USER_HOME= | ="$XDG_DATA_HOME"/android= |
I also need to export this alias, because =wget= feels like it’s
special, but these are exported in [[file:./scripts.md#wrappers][wrappers]] in my scripts
documentation.
If you’re wondering how I got most of these variables, [[https://github.com/b3nj5m1n/xdg-ninja][xdg-ninja]] can
help you with that.
#+begin_src sh
<<export-variables(cleanup-variables)>>
#+end_src
** PATH variable
#+name: path-values
| Additional =PATH= values | Comment |
|----------------------------------------+------------------------------------------|
| =/usr/lib/xfce-polkit/= | Lets me access more easily XFCE’s polkit |
| =$HOME/.cabal/bin= | Haskell binaries |
| =$GEM_HOME/ruby/2.6.0/bin= | Ruby 2.6.0 binaries |
| =$GEM_HOME/ruby/3.0.0/bin= | Ruby 3 binaries |
| =$GOPATH/bin= | Go binaries |
| =${CARGO_HOME}/bin= | Cargo and Rust binaries |
| =$HOME/Android/Sdk/tools/bin= | Android tools and binaries |
| =$HOME/.local/bin= | Custom scripts |
| =$HOME/.config/plover/plugins/linux/bin= | Plover binaries |
| =$HOME/.nix-profile/bin= | Nix binaries |
#+begin_src sh
<<path-concat()>>
#+end_src
* Functions :noexport:
:PROPERTIES:
:HEADER-ARGS:sh: :tangle no
:END:
#+name: trim-org
#+begin_src emacs-lisp
(lambda (str) (replace-regexp-in-string "=$" "" (replace-regexp-in-string "^=" "" str)))
#+end_src
#+name: export-variables
#+begin_src emacs-lisp :var table=dev-variables :wrap "src sh :exports none"
(let ((trim-org <<trim-org>>))
(mapconcat (lambda (line)
(let ((var (apply trim-org (list (car line))))
(value (apply trim-org (list (cadr line))))
(expressionp (and (not (null (nth 2 line)))
(not (string= "" (nth 2 line))))))
(if expressionp
(format "%s=$(%s)\nexport %s" var value var)
(format "export %s=%s" var value))))
table
"\n"))
#+end_src
#+RESULTS[1f66ed32a7001ef22dfa536e4747307767875fdb]: export-variables
#+begin_src sh :exports none
SSH_AUTH_SOCK=$(gpgconf --list-dirs agent-ssh-socket)
export SSH_AUTH_SOCK
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH":/usr/local/lib
export LSP_USE_PLISTS=true
export DIFFPROG=ediff
export SUDO_ASKPASS="$HOME"/.local/bin/askpass
export MANPAGER=less
#+end_src
#+name: path-concat
#+begin_src emacs-lisp :var table=path-values :wrap "src sh :exports none"
(let ((trim-org <<trim-org>>))
(concat
(mapconcat (lambda (line)
(let ((new-path (apply trim-org (list (car line)))))
(format "PATH=\"%s:$PATH\"" new-path)))
table
"\n")
"\nexport PATH"))
#+end_src
#+RESULTS[cd8e62f27d5ef288dde8814e3a6f8b36b02f7a61]: path-concat
#+begin_src sh :exports none
PATH="/usr/lib/xfce-polkit/:$PATH:$PATH"
PATH="$HOME/.cabal/bin:$PATH:$PATH"
PATH="$GEM_HOME/ruby/2.6.0/bin:$PATH:$PATH"
PATH="$GEM_HOME/ruby/3.0.0/bin:$PATH:$PATH"
PATH="$GOPATH/bin:$PATH:$PATH"
PATH="${CARGO_HOME}/bin:$PATH:$PATH"
PATH="$HOME/Android/Sdk/tools/bin:$PATH:$PATH"
PATH="$HOME/.local/bin:$PATH:$PATH"
PATH="$HOME/.config/plover/plugins/linux/bin:$PATH:$PATH"
PATH="$HOME/.nix-profile/bin:$PATH:$PATH"
export PATH
#+end_src
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