fix: respect ZSH's $ZDOTDIR environment variable (#942)

ZSH reads its configuration by default relative to a path that's set via $ZDOTDIR. If $ZDOTDIR is not set, then the value of $HOME is used; this is the usual case. Source:  https://zsh.sourceforge.io/Intro/intro_3.html#IDX11

Also $HOME is save to use, because "The system shall initialize this variable at the time of login to be a pathname of the user's home directory". Source: https://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html

Lastly, the shell parameter expansion syntax is save to use generically: https://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_02

Co-authored-by: Ellie Huxtable <ellie@elliehuxtable.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/install.sh b/install.sh
index db63d6ca..f547a7cd 100755
--- a/install.sh
+++ b/install.sh
@@ -184,7 +184,7 @@ esac
 # Use of single quotes around $() is intentional here
 # shellcheck disable=SC2016
 if ! grep -q "atuin init zsh" ~/.zshrc; then
-  printf '\neval "$(atuin init zsh)"\n' >> ~/.zshrc
+  printf '\neval "$(atuin init zsh)"\n' >> "${ZDOTDIR:-$HOME}/.zshrc"
 fi
 
 # Use of single quotes around $() is intentional here