fix: generate tarball and expose inside of OCI image instead of generating github releases

Signed-off-by: Tulip Blossom <tulilirockz@outlook.com>

Author: tulilirockz

.github/workflows/brew-tarball.yml

@@ -1,7 +1,12 @@
-FROM docker.io/library/alpine:latest AS build
+FROM cgr.dev/chainguard/wolfi-base:latest AS builder
 
-RUN exit 1
+RUN apk add curl git zstd posix-libc-utils uutils gnutar grep bash-binsh && \
+  curl --retry 3 -fsSLo "/tmp/brew-install" "https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh" && \
+  touch /.dockerenv && \
+  env --ignore-environment "PATH=/usr/bin:/bin:/usr/sbin:/sbin" "HOME=/home/linuxbrew" "NONINTERACTIVE=1" /usr/bin/bash /tmp/brew-install && \
+  mkdir -p /out && \
+  tar --zstd -cvf "/out/homebrew.tar.zst" "/home/linuxbrew/.linuxbrew"
 
 FROM scratch AS ctx
-COPY /system_files/shared /system_files/shared/
-COPY --from=build /out/homebrew.tar.zstd /system_files/usr/share/homebrew.tar.zstd
+COPY system_files /system_files
+COPY --from=builder /out/homebrew.tar.zst /system_files/usr/share/homebrew.tar.zst

Containerfile

@@ -0,0 +1,25 @@
+#!/bin/sh
+# shellcheck shell=sh disable=SC1091,SC2039,SC2166
+# Check for interactive bash and that we haven't already been sourced.
+if [ "x${BASH_VERSION-}" != x -a "x${PS1-}" != x -a "x${BREW_BASH_COMPLETION-}" = x ]; then
+
+    # Check for recent enough version of bash.
+    if [ "${BASH_VERSINFO[0]}" -gt 4 ] ||
+        [ "${BASH_VERSINFO[0]}" -eq 4 -a "${BASH_VERSINFO[1]}" -ge 2 ]; then
+        if [ -w /home/linuxbrew/.linuxbrew ]; then
+            if ! test -L /home/linuxbrew/.linuxbrew/etc/bash_completion.d/brew; then
+                /home/linuxbrew/.linuxbrew/bin/brew completions link > /dev/null
+            fi
+        fi
+        if test -d /home/linuxbrew/.linuxbrew/etc/bash_completion.d; then
+            for rc in /home/linuxbrew/.linuxbrew/etc/bash_completion.d/*; do
+                if test -r "$rc"; then
+                . "$rc"
+                fi
+            done
+            unset rc
+        fi
+    fi
+    BREW_BASH_COMPLETION=1
+    export BREW_BASH_COMPLETION
+fi

system_files/etc/profile.d/brew-bash-completion.sh

@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+[[ -d /home/linuxbrew/.linuxbrew && $- == *i* ]] && eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"

system_files/etc/profile.d/brew.sh

@@ -0,0 +1,9 @@
+#This file sets the resource limits for the users logged in via PAM,
+#more specifically, users logged in on via SSH or tty (console).
+#Limits related to terminals in Wayland/Xorg sessions depend on a
+#change to /etc/systemd/user.conf.
+#This does not affect resource limits of the system services.
+#This file overrides defaults set in /etc/security/limits.conf
+
+* soft nofile 4096
+root soft nofile 4096

system_files/etc/security/limits.d/30-brew-limits.conf

@@ -0,0 +1,3 @@
+enable brew-setup.service
+enable brew-update.timer
+enable brew-upgrade.timer

system_files/usr/lib/systemd/system-preset/01-homebrew.preset

@@ -0,0 +1,20 @@
+[Unit]
+Description=Setup Brew
+Wants=basic.target
+After=basic.target
+ConditionPathExists=!/etc/.linuxbrew
+ConditionPathExists=!/var/home/linuxbrew/.linuxbrew
+ConditionPathExists=/usr/share/homebrew.tar.zst
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/mkdir -p /tmp/homebrew
+ExecStart=/usr/bin/mkdir -p /var/home/linuxbrew
+ExecStart=/usr/bin/tar --zstd -xvf /usr/share/homebrew.tar.zst -C /tmp/homebrew
+ExecStart=/usr/bin/cp -R -n /tmp/homebrew/home/linuxbrew/.linuxbrew /var/home/linuxbrew
+ExecStart=/usr/bin/chown -R 1000:1000 /var/home/linuxbrew
+ExecStart=/usr/bin/rm -rf /tmp/homebrew
+ExecStart=/usr/bin/touch /etc/.linuxbrew
+
+[Install]
+WantedBy=default.target multi-user.target

system_files/usr/lib/systemd/system/brew-setup.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Auto update brew for mutable brew installs
+After=local-fs.target
+After=network-online.target
+ConditionPathIsSymbolicLink=/home/linuxbrew/.linuxbrew/bin/brew
+
+[Service]
+# Override the user if different UID/User
+User=1000
+Type=oneshot
+Environment=HOMEBREW_CELLAR=/home/linuxbrew/.linuxbrew/Cellar
+Environment=HOMEBREW_PREFIX=/home/linuxbrew/.linuxbrew
+Environment=HOMEBREW_REPOSITORY=/home/linuxbrew/.linuxbrew/Homebrew
+ExecStart=/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew update"

system_files/usr/lib/systemd/system/brew-update.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Timer for brew update for mutable brew
+Wants=network-online.target
+
+[Timer]
+OnBootSec=10min
+OnUnitInactiveSec=6h
+Persistent=true
+
+[Install]
+WantedBy=timers.target

system_files/usr/lib/systemd/system/brew-update.timer

@@ -0,0 +1,22 @@
+[Unit]
+Description=Upgrade Brew packages
+After=local-fs.target
+After=network-online.target
+ConditionPathIsSymbolicLink=/home/linuxbrew/.linuxbrew/bin/brew
+
+[Service]
+# Override the user if different UID/User
+User=1000
+Type=oneshot
+Environment=HOMEBREW_CELLAR=/home/linuxbrew/.linuxbrew/Cellar
+Environment=HOMEBREW_PREFIX=/home/linuxbrew/.linuxbrew
+Environment=HOMEBREW_REPOSITORY=/home/linuxbrew/.linuxbrew/Homebrew
+ExecStart=/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew upgrade"
+# Prevent Brew from overriding important system binaries like:
+# systemctl, loginctl, dbus-*, python*
+ExecStartPost=-/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew unlink systemd"
+ExecStartPost=-/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew unlink dbus"
+ExecStartPost=-/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew unlink python"
+ExecStartPost=-/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew unlink gsettings"
+ExecStartPost=-/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew unlink bash"
+ExecStartPost=-/usr/bin/bash -c "/home/linuxbrew/.linuxbrew/bin/brew unlink rpm"