init new os-image-builder tool

bootstrap/rosa13

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+RELEASE="rosa13"
+ABF_DOWNLOADS="https://abf-downloads.rosalinux.ru"
+PKGS="basesystem-minimal locales-en dbus coreutils findutils util-linux xz e2fsprogs passwd openssh-server"
+WEAK_DEPS="false"
+DEFAULT_USER="rosa"
+DEFAULT_USER_PASSWORD="rosa"
+PASSWD_ROOT="root"

build.py

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+#!/usr/bin/env python
+
+import os
+import sys
+import subprocess
+import multiprocessing
+from utils.bootstrap_setup import setup_bootstrap, load_config
+
+BASE_DIR = os.getcwd()
+TMP_DIR = os.path.join(BASE_DIR, "tmp")
+NUM_CORES = str(multiprocessing.cpu_count())
+
+
+def clone_repo(repo_url, branch, dest_dir, name):
+    if os.path.exists(dest_dir):
+        print(f"Warning: {name} directory '{dest_dir}' already exists. Skipping clone.")
+    else:
+        os.makedirs(dest_dir, exist_ok=True)
+        subprocess.run(["git", "clone", "--depth", "1", repo_url, "-b", branch, dest_dir], check=True)
+
+
+def build_kernel(config, vendor, device):
+    kernel_dir = os.path.join(TMP_DIR, vendor, device, "kernel")
+    clone_repo(config["KERNEL"].split("#")[0], config["KERNEL"].split("#")[1], kernel_dir, "Kernel")
+
+    os.chdir(kernel_dir)
+    subprocess.run(["make", config["KERNEL_CONFIG"]], check=True)
+    subprocess.run(["make", config.get("KERNELTARGET", "Image"), "-j" + NUM_CORES], check=True)
+    os.chdir(BASE_DIR)
+
+
+def build_uboot(config, vendor, device):
+    if "UBOOT" not in config or "UBOOT_VERSION" not in config:
+        print("U-Boot configuration not found. Skipping U-Boot build.")
+        return
+
+    uboot_dir = os.path.join(TMP_DIR, vendor, device, "u-boot")
+    clone_repo(config["UBOOT"], config["UBOOT_VERSION"], uboot_dir, "U-Boot")
+
+    os.chdir(uboot_dir)
+    subprocess.run(["make", config["UBOOT_CONFIG"]], check=True)
+    subprocess.run(["make", "-j" + NUM_CORES], check=True)
+    os.chdir(BASE_DIR)
+
+
+def main():
+    if len(sys.argv) < 3 or "--distro" not in sys.argv:
+        print("Usage: python build.py --distro <distro_name> <vendor/device> [--skip-kernel] [--skip-uboot]")
+        sys.exit(1)
+
+    distro_idx = sys.argv.index("--distro") + 1
+    distro = sys.argv[distro_idx]
+    vendor_device = sys.argv[distro_idx + 1]
+    vendor, device = vendor_device.split("/")
+    config_path = os.path.join("device", vendor, device, "config")
+    skip_kernel = "--skip-kernel" in sys.argv
+    skip_uboot = "--skip-uboot" in sys.argv
+
+    if not os.path.exists(config_path):
+        print(f"Configuration file for {vendor}/{device} not found.")
+        sys.exit(1)
+
+    config = load_config(config_path)
+    if config["ARCH"] != "aarch64":
+        print("Unsupported architecture.")
+        sys.exit(1)
+
+    print(f"Building for {vendor}/{device} with distro {distro}...")
+
+    if not skip_kernel:
+        build_kernel(config, vendor, device)
+    else:
+        print("Skipping kernel build.")
+
+    if not skip_uboot:
+        build_uboot(config, vendor, device)
+    else:
+        print("Skipping U-Boot build.")
+
+    setup_bootstrap("bootstrap", TMP_DIR, vendor, device, distro)
+
+    print(f"Build completed for {vendor}/{device} with distro {distro}")
+
+
+if __name__ == "__main__":
+    main()
+

device/raspberry/pi4b/config

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+ARCH="aarch64"
+KERNEL="https://github.com/raspberrypi/linux.git#rpi-6.6.y"
+KERNEL_CONFIG="bcm2711_defconfig"
+KERNEL_EXTRACONFIG="--module NTFS3_FS --enable NTFS3_LZX_XPRESS --enable NTFS3_FS_POSIX_ACL --disable NTFS3_64BIT_CLUSTER"
+DTB="broadcom/bcm2711-rpi-4-b"
+CMDLINE="dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait"
+NEED_INITRD=no

device/raspberry/pi4b/config.txt

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+# See
+# https://www.raspberrypi.org/documentation/configuration/config-txt
+arm_64bit=1
+kernel=kernel8.img
+dtoverlay=vc4-kms-v3d-pi4
+# Force the monitor to HDMI mode so that sound will be sent over HDMI cable
+hdmi_drive=2
+# Force monitor mode to DMT
+hdmi_group=2
+# Force monitor resolution (e.g. 16 = 1920x1080)
+#hdmi_mode=16
+# Some displays might have issues with text/pixels spilling off the screen.
+# If this affects you, uncomment the overscan_* settings and adjust the values
+#overscan_left=20
+#overscan_right=12
+#overscan_top=10
+#overscan_bottom=10
+# For i2c & spi
+dtparam=i2c_arm=on
+dtparam=spi=on
+# Memory reserved for the GPU (in MB)
+mem_gpu=256
+
+# Enable audio (loads snd_bcm2835)
+dtparam=audio=on

utils/bootstrap_setup.py

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+import os
+import sys
+import subprocess
+
+
+def load_config(config_path):
+    config = {}
+    with open(config_path, "r") as f:
+        for line in f:
+            if "=" in line and not line.strip().startswith("#"):
+                key, value = line.strip().split("=", 1)
+                config[key] = value.strip('"')
+    return config
+
+
+def load_bootstrap_config(bootstrap_path):
+    """Load the bootstrap configuration from the specified file."""
+    config = {}
+    with open(bootstrap_path, "r") as f:
+        for line in f:
+            if "=" in line and not line.strip().startswith("#"):
+                key, value = line.strip().split("=", 1)
+                config[key] = value.strip('"')
+    return config
+
+
+def generate_dnf_conf(dnf_conf_path, abf_downloads, release):
+    """Generate dnf.conf based on the bootstrap configuration."""
+    dnf_conf_content = f"""
+[main]
+keepcache=1
+debuglevel=2
+reposdir=/dev/null
+retries=20
+obsoletes=1
+gpgcheck=0
+assumeyes=1
+syslog_ident=mock
+syslog_device=
+install_weak_deps=0
+metadata_expire=60s
+best=1
+
+[{release}_main_release]
+name={release}_main_release
+baseurl={abf_downloads}/{release}/repository/aarch64/main/release
+gpgcheck=0
+enabled=1
+
+[{release}_main_updates]
+name={release}_main_updates
+baseurl={abf_downloads}/{release}/repository/aarch64/main/updates
+gpgcheck=0
+enabled=1
+"""
+
+    os.makedirs(os.path.dirname(dnf_conf_path), exist_ok=True)
+    with open(dnf_conf_path, "w") as f:
+        f.write(dnf_conf_content)
+
+
+def run_dnf_install(config, dnf_conf_path, rootfs_dir):
+    """Run dnf command to install packages based on the bootstrap configuration."""
+    pkgs = config["PKGS"]
+    weak_deps = config["WEAK_DEPS"].lower()
+
+    dnf_command = [
+        "sudo",
+        "dnf",
+        "--setopt=install_weak_deps=" + str(weak_deps),
+        "--config", dnf_conf_path,
+        "--installroot", rootfs_dir,
+        "install"
+    ] + pkgs.split()
+
+    subprocess.run(dnf_command, check=True)
+
+
+def setup_bootstrap(bootstrap_dir, tmp_dir, vendor, device, distro):
+    # load distro config
+    # bootstrap/DISTRO_NAME
+    distro_config_path = os.path.join(bootstrap_dir, distro)
+    if not os.path.exists(distro_config_path):
+        print(f"Bootstrap configuration for distro '{distro}' not found.")
+        sys.exit(1)
+
+    config = load_config(distro_config_path)
+
+    dnf_conf_path = os.path.join(tmp_dir, vendor, device, "dnf.conf")
+    rootfs_dir = os.path.join(tmp_dir, vendor, device, "rootfs")
+
+    generate_dnf_conf(dnf_conf_path, config["ABF_DOWNLOADS"], config["RELEASE"])
+    run_dnf_install(config, dnf_conf_path, rootfs_dir)
+
+    #setup_user(rootfs_dir, config["DEFAULT_USER"], config["DEFAULT_USER_PASSWORD"], config["PASSWD_ROOT"])