From ddf3de5a804a4af56f381bccb978f41d8724ee29 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Mon, 4 Mar 2024 13:58:20 -0800
Subject: [PATCH] [zsh] Implement a homebrew-prefix function and use it when
 setting up fpath

# Conflicts:
#	zshrc
---
 zsh/func/homebrew-prefix      | 19 +++++++++++++++++++
 zsh/func/init_rc_fpath_darwin |  5 +++--
 zshrc                         |  2 +-
 3 files changed, 23 insertions(+), 3 deletions(-)
 create mode 100644 zsh/func/homebrew-prefix

diff --git a/zsh/func/homebrew-prefix b/zsh/func/homebrew-prefix
new file mode 100644
index 0000000..c05c68d
--- /dev/null
+++ b/zsh/func/homebrew-prefix
@@ -0,0 +1,19 @@
+#!/usr/bin/env zsh
+
+autoload binary_exists
+
+function homebrew-prefix
+{
+    if [[ -e "$SYSTEM_PARAMETERS_FILE" ]] && binary_exists jq; then
+        jq .parameters.homebrew_prefix.value "$SYSTEM_PARAMETERS_FILE"
+        return
+    fi
+
+    if ! binary_exists brew; then
+        return
+    fi
+
+    brew --prefix
+}
+
+homebrew-prefix "$@"
diff --git a/zsh/func/init_rc_fpath_darwin b/zsh/func/init_rc_fpath_darwin
index 53249e8..5ee1a3b 100644
--- a/zsh/func/init_rc_fpath_darwin
+++ b/zsh/func/init_rc_fpath_darwin
@@ -1,11 +1,12 @@
 # Eryn Wells <eryn@erynwells.me>
 
-autoload -Uz binary_exists
+autoload binary_exists
+autoload homebrew-prefix
 
 function init_rc_fpath_darwin
 {
     if binary_exists brew; then
-        local brew_fpath="$(brew --prefix)/share/zsh/site-functions"
+        local brew_fpath="$(homebrew-prefix)/share/zsh/site-functions"
         if [[ -d "$brew_fpath" ]]; then
             fpath+=($brew_fpath)
         fi
diff --git a/zshrc b/zshrc
index ae5e58d..358f8be 100644
--- a/zshrc
+++ b/zshrc
@@ -21,4 +21,4 @@ autoload -Uz nethack
 autoload -Uz pw
 autoload -Uz up
 autoload -Uz vi
-autoload -Uz open-xcode
+autoload -Uz homebrew-prefix