brew/package/scripts/postinstall
Ruoyu Zhong f76442837a
package/scripts/postinstall: avoid writing to ~/.gitconfig
In this attempt we pretend that the "global" configs are in the
repository itself.

    $ XDG_CONFIG_HOME= HOME=$PWD git config --global section.key value
    $ XDG_CONFIG_HOME= HOME=$PWD git config --global section.key
    value
    $ git config --global section.key
    $ cat $PWD/.gitconfig
    [section]
      key = value
2024-04-11 04:15:59 +08:00

91 lines
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#!/bin/bash
# $1 Full path to the installer (unused)
# $2 Location of the Homebrew installation we may need to move into place
# $3 Target install location (unused)
# $4 System root directory (unused)
set -euo pipefail
# disable analytics while installing
export HOMEBREW_NO_ANALYTICS_THIS_RUN=1
export HOMEBREW_NO_ANALYTICS_MESSAGE_OUTPUT=1
# verify the installation exists
# default to /opt/homebrew to make development/testing easier
homebrew_directory="${2:-/opt/homebrew}"
if [[ ! -d "${homebrew_directory:?}" ]]
then
echo "No directory at ${homebrew_directory}!" >&2
exit 1
fi
# add Git to path
export PATH="/Library/Developer/CommandLineTools/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:${PATH}"
# reset Git repository
cd "${homebrew_directory}"
# avoid writing user's global config file by making
# "${homebrew_directory}/.gitconfig" the "global" config
# https://git-scm.com/docs/git-config#SCOPES
git=(env XDG_CONFIG_HOME="" HOME="${homebrew_directory}" git)
"${git[@]}" config --global --add safe.directory "${homebrew_directory}"
"${git[@]}" reset --hard
"${git[@]}" checkout --force master
"${git[@]}" branch | grep -v '\*' | xargs -n 1 "${git[@]}" branch --delete --force || true
rm "${homebrew_directory}/.gitconfig"
# move to /usr/local if on x86_64
if [[ $(uname -m) == "x86_64" ]]
then
if [[ -f "/usr/local/bin/brew" && -d "/usr/local/Homebrew" ]]
then
cp -pRL "${homebrew_directory}/.git" "/usr/local/Homebrew/"
mv "${homebrew_directory}/cache_api" "/usr/local/Homebrew/"
git=(env XDG_CONFIG_HOME="" HOME="/usr/local/Homebrew" git)
"${git[@]}" config --global --add safe.directory /usr/local/Homebrew
"${git[@]}" -C /usr/local/Homebrew reset --hard
"${git[@]}" -C /usr/local/Homebrew checkout --force master
rm /usr/local/Homebrew/.gitconfig
else
mkdir -vp /usr/local/bin
mv "${homebrew_directory}" "/usr/local/Homebrew/"
# create symlink to /usr/local/bin/brew
ln -svf "../Homebrew/bin/brew" "/usr/local/bin/brew"
fi
rm -rf "${homebrew_directory}"
homebrew_directory="/usr/local/Homebrew"
cd /usr/local
fi
# create missing directories
mkdir -vp Cellar Frameworks etc include lib opt sbin share var/homebrew/linked
# optionally define an install user at /var/tmp/.homebrew_pkg_user.plist
homebrew_pkg_user_plist="/var/tmp/.homebrew_pkg_user.plist"
if [[ -f "${homebrew_pkg_user_plist}" ]] && [[ -n $(defaults read "${homebrew_pkg_user_plist}" HOMEBREW_PKG_USER) ]]
then
homebrew_pkg_user=$(defaults read /var/tmp/.homebrew_pkg_user HOMEBREW_PKG_USER)
# otherwise, get valid logged in user
else
homebrew_pkg_user=$(echo "show State:/Users/ConsoleUser" | scutil | awk '/Name :/ { print $3 }')
fi
# set permissions
if [[ "${homebrew_directory}" == "/usr/local/Homebrew" ]]
then
chown -R "${homebrew_pkg_user}:admin" Cellar Frameworks Homebrew bin etc include lib sbin share opt var
else
chown -R "${homebrew_pkg_user}:admin" .
fi
# move API cache to ~/Library/Caches/Homebrew
user_home_dir=$(dscl . read /Users/"${homebrew_pkg_user}" NFSHomeDirectory | awk '{ print $2 }')
user_cache_dir="${user_home_dir}/Library/Caches/Homebrew"
user_api_cache_dir="${user_cache_dir}/api"
mkdir -vp "${user_api_cache_dir}"
mv -v "${homebrew_directory}/cache_api/"* "${user_api_cache_dir}"
chown -R "${homebrew_pkg_user}:staff" "${user_cache_dir}"
rm -vrf "${homebrew_directory}/cache_api"