cd into root of mas project at beginning of every bash script.

Partial #638

Signed-off-by: Ross Goldberg <484615+rgoldberg@users.noreply.github.com>

script/bottle

@@ -14,7 +14,14 @@
 # Variables
 #
 
-BUILD_DIR="${PWD}/.build"
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
+BUILD_DIR=.build
 BOTTLE_DIR="${BUILD_DIR}/bottles"
 CORE_TAP_PATH="$(brew --repo homebrew/core)"
 MAS_VERSION="$(script/version)"

script/brew_build_interactive

@@ -6,6 +6,13 @@
 # https://docs.brew.sh/Formula-Cookbook#check-the-build-system
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 HOMEBREW_NO_INSTALL_FROM_API=1 \
   brew reinstall \
   --interactive mas

script/brew_core_update

@@ -9,11 +9,17 @@
 # brew bump-formula-pr --help
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 CORE_TAP_PATH="$(brew --repo homebrew/core)"
 CORE_MAS_FORMULA_FILE="${CORE_TAP_PATH}/Formula/m/mas.rb"
 
-PROJECT_PATH="$(git rev-parse --show-toplevel)"
-LOCAL_MAS_FORMULA_PATH="${PROJECT_PATH}/Homebrew/mas.rb"
+LOCAL_MAS_FORMULA_PATH=Homebrew/mas.rb
 
 function usage {
   echo "Usage: brew_core_update [-d] [<version_tag> [<sha1_hash>]]"

script/brew_release_validate

@@ -7,6 +7,13 @@
 # https://github.com/Homebrew/homebrew-core/blob/master/CONTRIBUTING.md#to-contribute-a-fix-to-the-foo-formula
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 brew uninstall --force mas
 brew install --build-from-source mas
 brew test mas

script/brew_tap_update

@@ -7,6 +7,13 @@
 # https://github.com/mas-cli/homebrew-tap/blob/main/Formula/mas.rb
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 function usage {
   echo "Usage: brew_tap_update [<version_tag> [<sha1_hash>]]"
   echo "  version will be inferred using version script if not provided"

script/build_artifacts

@@ -6,6 +6,13 @@
 # Runs all related scripts for generating all artifacts.
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 MAS_VERSION="$(script/version)"
 
 echo "Building mas ${MAS_VERSION} artifacts"

script/clean

@@ -6,5 +6,12 @@
 # Deletes the build directory.
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 swift package clean
 swift package reset

script/install

@@ -10,6 +10,13 @@
 # https://github.com/Homebrew/homebrew-core/blob/master/Formula/m/mas.rb
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 ARCH="$(uname -m)"
 RELEASE=".build/${ARCH}-apple-macosx/release"
 MAS_VERSION="$(script/version)"

script/package

@@ -6,7 +6,14 @@
 # Builds macOS installer component and distribution packages.
 #
 
-BUILD_DIR="${PWD}/.build"
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
+BUILD_DIR=.build
 COMPONENT_PACKAGE="${BUILD_DIR}/mas_components.pkg"
 DISTRIBUTION_PACKAGE="${BUILD_DIR}/mas.pkg"
 
@@ -17,7 +24,7 @@ IDENTIFIER="com.mphys.mas-cli"
 DISTRIBUTION_PLIST="Package/Distribution.plist"
 
 # Destination for install root
-DSTROOT=.build/distributions
+DSTROOT="${BUILD_DIR}/distributions"
 script/install "${DSTROOT}/usr/local" --universal
 
 MAS_VERSION="$(script/version)"

script/package_install

@@ -6,6 +6,13 @@
 # Installs the mas distribution package. Requires sudo access.
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 IDENTIFIER=com.mphys.mas-cli
 
 echo "==> 📲 Installing mas"

script/uninstall

@@ -6,6 +6,13 @@
 # Removes mas from PREFIX.
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 # Override default prefix path with optional 1st arg
 PREFIX="${1:-"$(brew --prefix)"}"
 

script/update_headers

@@ -6,6 +6,13 @@
 # Runs class-dump to generate headers for Apple private frameworks.
 #
 
+mas_dir="$(readlink -fn "$(dirname "${BASH_SOURCE:-"${0}"}")/..")"
+
+if ! cd -- "${mas_dir}"; then
+  printf $'Error: Could not cd into mas directory: %s\n' "${mas_dir}" >&2
+  exit 1
+fi
+
 main() {
   check_class_dump
   extract_private_framework_headers "CommerceKit"