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tg-ws-proxy/packaging/dmg/build_dmg.sh
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#!/usr/bin/env bash
set -euo pipefail
APP_PATH="${1:?Usage: build_dmg.sh <App.app> <Volume Name> <output.dmg> [assets_dir]}"
VOL_NAME="${2:?missing volume name}"
OUT_DMG="${3:?missing output dmg path}"
ASSETS_DIR="${4:-$(cd "$(dirname "${BASH_SOURCE[0]}")/assets" && pwd)}"
WIN_W=660
WIN_H=440
ICON_SIZE=128
APP_X=145
APPS_X=515
ICON_Y=220
APP_NAME="$(basename "$APP_PATH")"
WORK="$(mktemp -d)"
STAGE="$WORK/stage"
RW_DMG="$WORK/rw.dmg"
MOUNT="/Volumes/$VOL_NAME"
DEVICE=""
cleanup() {
if [ -n "$DEVICE" ]; then
hdiutil detach "$DEVICE" -force >/dev/null 2>&1 || true
fi
rm -rf "$WORK"
}
trap cleanup EXIT
mkdir -p "$STAGE/.background"
cp -R "$APP_PATH" "$STAGE/"
ln -s /Applications "$STAGE/Applications"
tiffutil -cathidpicheck \
"$ASSETS_DIR/background-light.png" \
"$ASSETS_DIR/background-light@2x.png" \
-out "$STAGE/.background/background.tiff"
hdiutil create \
-volname "$VOL_NAME" \
-srcfolder "$STAGE" \
-fs HFS+ \
-format UDRW \
-ov \
"$RW_DMG"
DEVICE="$(hdiutil attach \
-readwrite \
-noverify \
-noautoopen \
-mountpoint "$MOUNT" \
"$RW_DMG" \
| awk '/^\/dev\// { print $1; exit }')"
test -n "$DEVICE"
test -d "$MOUNT/$APP_NAME"
sleep 2
osascript <<APPLESCRIPT
tell application "Finder"
tell disk "$VOL_NAME"
open
set current view of container window to icon view
set toolbar visible of container window to false
set statusbar visible of container window to false
set the bounds of container window to {200, 140, 200 + $WIN_W, 140 + $WIN_H}
set theViewOptions to the icon view options of container window
set arrangement of theViewOptions to not arranged
set icon size of theViewOptions to $ICON_SIZE
set text size of theViewOptions to 13
set background picture of theViewOptions to file ".background:background.tiff"
set position of item "$APP_NAME" of container window to {$APP_X, $ICON_Y}
set position of item "Applications" of container window to {$APPS_X, $ICON_Y}
close
open
update
delay 2
end tell
end tell
APPLESCRIPT
SetFile -a C "$MOUNT" 2>/dev/null || true
sync
hdiutil detach "$DEVICE" -force >/dev/null 2>&1 \
|| { sleep 3; hdiutil detach "$DEVICE" -force; }
DEVICE=""
rm -f "$OUT_DMG"
hdiutil convert "$RW_DMG" -format UDZO -imagekey zlib-level=9 -ov -o "$OUT_DMG"
echo "Created $OUT_DMG"