Initial commit: build env for the Ubtouch OS

Change-Id: I4bf8c32811d2785bd86a532f4cb435794f5c14d2

docker-build.sh

@@ -0,0 +1,102 @@
+#!/bin/bash
+set -euo pipefail
+
+# ===============================
+# CONFIGURATION
+# ===============================
+CLEAN_BUILD="${CLEAN_BUILD:-false}"
+HALIUM_REPO="${HALIUM_REPO:-https://gitlab.com/ubports/porting/community-ports/halium-generic-adaptation-build-tools.git}"
+HALIUM_BRANCH="${HALIUM_BRANCH:-main}"
+WORKDIR="$(pwd)"
+OUTDIR="${WORKDIR}/out"
+OTADIR="${WORKDIR}/ota"
+BUILDDIR="${WORKDIR}/build"
+
+# ===============================
+# LOGGING FUNCTIONS
+# ===============================
+log() {
+    echo "[$(date +'%Y-%m-%d %H:%M:%S')] $*" >&2
+}
+
+cleanup() {
+    local exit_code=$?
+    if [ $exit_code -ne 0 ]; then
+        log "Build failed with exit code $exit_code"
+    fi
+}
+trap cleanup EXIT
+
+# ===============================
+# PREPARE BUILD ENV
+# ===============================
+if [ "$CLEAN_BUILD" = "true" ]; then
+    log "Performing clean build: removing previous artifacts"
+    rm -rf "$OUTDIR" "$OTADIR" "$BUILDDIR"
+else
+    log "Incremental build enabled (set CLEAN_BUILD=true to force wipe)"
+fi
+
+mkdir -p "$OUTDIR" "$OTADIR"
+
+# ===============================
+# CLONE HALIUM TOOLS
+# ===============================
+if [ ! -d "$BUILDDIR" ]; then
+    log "Cloning Halium build tools from $HALIUM_REPO (branch: $HALIUM_BRANCH)"
+    git clone -b "$HALIUM_BRANCH" "$HALIUM_REPO" "$BUILDDIR"
+else
+    log "Halium build tools already present, pulling latest changes"
+    (cd "$BUILDDIR" && git fetch && git checkout "$HALIUM_BRANCH" && git pull --rebase) || true
+fi
+
+# ===============================
+# BUILD KERNEL
+# ===============================
+log "Starting kernel build..."
+"$BUILDDIR/build.sh"
+log "Kernel build completed successfully"
+
+# ===============================
+# ROOTFS & OTA PREP
+# ===============================
+DATETIME=$(date +%Y%m%d-%H%M)
+DEVICE="$(source deviceinfo && echo "$deviceinfo_codename")"
+
+log "Preparing OTA for device: $DEVICE"
+"$BUILDDIR/prepare-fake-ota.sh" "$OUTDIR/device_${DEVICE}.tar.xz" "$OTADIR"
+
+log "Generating system image..."
+"$BUILDDIR/system-image-from-ota.sh" "$OTADIR/ubuntu_command" "$OUTDIR"
+mv "$OUTDIR/rootfs.img" "$OUTDIR/ubuntu.img"
+
+# ===============================
+# PACKAGE ARTIFACTS
+# ===============================
+cd "$OUTDIR"
+log "Compressing ubuntu.img with zstd..."
+rm -f ubuntu.img.zst
+
+log "Cleaning generated {init}/boot artifacts inorder to use prebuilt ones"
+rm -rf boot.img init_boot.img
+
+log "Copying prebuilt artifacts"
+cp -r ../boot.img .
+cp -r ../init_boot.img .
+
+zstd -q -f ubuntu.img
+
+ZIPNAME="ubuntu-touch-${DEVICE}-${DATETIME}.zip"
+log "Creating flashable zip: $ZIPNAME"
+zip -r9 "$ZIPNAME" boot.img init_boot.img *.zst
+
+cd "$WORKDIR"
+
+# ===============================
+# DONE
+# ===============================
+log "======================================="
+log "Build completed successfully!"
+log "Artifacts available in: $OUTDIR"
+ls -lh "$OUTDIR"
+log "======================================="