From 30b2bff11ca6b2e339d2b49465f13eaaded52ddb Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Mon, 9 Oct 2023 08:57:53 +0200
Subject: [PATCH] rescue,main

---
 __main__.py | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 rescue.sh   | 41 ++++++++++++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 __main__.py
 create mode 100644 rescue.sh

diff --git a/__main__.py b/__main__.py
new file mode 100644
index 0000000..6adcae2
--- /dev/null
+++ b/__main__.py
@@ -0,0 +1,97 @@
+#! /usr/bin/env python3
+
+import os
+import subprocess
+import sys
+
+import rwx
+
+CHARSET = 'UTF-8'
+
+PGP = 'git@marc.beninca.link'
+
+MODULES = (
+    'regexp',
+    'memdisk', 'tar',
+    'search',
+    'part_gpt', 'part_msdos',
+    'btrfs', 'ext2', 'fat', 'iso9660', 'udf',
+    'exfat', 'hfs', 'hfspluscomp', 'ntfscomp',
+    'linux', 'loopback', 'squash4',
+#
+    'at_keyboard', 'keylayouts', 'keystatus', 'read',
+    'halt', 'reboot',
+    'all_video', 'videoinfo',
+    'gfxterm_background', 'jpeg', 'png', 'tga',
+#
+    'date', 'echo', 'eval', 'help', 'sleep', 'test', 'true',
+    'cpuid', 'lspci',
+    'cat', 'configfile', 'loadenv', 'progress', 'testspeed',
+    'hashsum', 'gcry_sha512', 'gcry_sha256',
+    'pgp', 'gcry_dsa', 'gcry_rsa',
+)
+BIOS_MODULES = (
+    'biosdisk',
+    'ntldr',
+)
+
+
+def run(*args):
+    return subprocess.run(args, capture_output=False)
+
+
+def run_line(*args):
+    lines = run_lines(*args)
+    return lines[0]
+
+
+def run_lines(*args):
+    process = subprocess.run(args, capture_output=True)
+    return process.stdout.decode(CHARSET).rstrip().split(os.linesep)
+
+
+def get_mount_uuid(path: str):
+    return run_line('findmnt', '--noheadings', '--output', 'UUID', path)
+
+
+def get_path_mount(path: str):
+    return run_line('stat', '--format', '%m', path)
+
+
+def get_path_uuid(path: str):
+    return get_mount_uuid(get_path_mount(path))
+
+
+def build(esp_root: str, data_uuid=None):
+    esp_uuid = get_path_uuid(esp_root)
+    grub_root = os.path.join(esp_root, 'grub')
+    print(f'''
+esp_root: {esp_root}
+data_uuid: {data_uuid}
+esp_uuid: {esp_uuid}
+grub_root: {grub_root}
+''', end=str())
+
+
+def main():
+    command, *args = sys.argv
+    if args:
+        data, *args = args
+    else:
+        data = None
+    project_file = os.path.realpath(__file__)
+    project_root = os.path.dirname(project_file)
+    parent_root, project_name = os.path.split(project_root)
+    print(f'''
+command: {command}
+data: {data}
+project_file: {project_file}
+project_root: {project_root}
+parent_root: {parent_root}
+project_name: {project_name}
+''', end=str())
+    build(parent_root, data_uuid=data)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/rescue.sh b/rescue.sh
new file mode 100644
index 0000000..ec0031b
--- /dev/null
+++ b/rescue.sh
@@ -0,0 +1,41 @@
+function set_uuid {
+    ESP_UUID=''
+    DATA_UUID=''
+    if [ ! "${DATA_UUID}" ] ; then
+        DATA_UUID="${ESP_UUID}"
+    fi
+}
+
+function set_init {
+    set_uuid
+    #
+    search --no-floppy --set data \\
+    --fs-uuid '${DATA_UUID}'
+    #
+    search --no-floppy --set esp \\
+    --fs-uuid '${ESP_UUID}'
+    if [ "${esp}" ] ; then
+        env="(${esp})/grub.env"
+        live="(${esp})/${PROJECT}/live"
+        #
+        for file in ${live}/source/*.sh ; do
+            source "${file}"
+        done
+        unset file
+    fi
+}
+
+function normal_init {
+    check_signatures='no'
+    pager=1
+    #
+    set_init
+    if [ "${esp}" ] ; then
+        prefix="(${esp})/grub"
+        root="${esp}"
+        #
+        normal "${live}/normal.sh"
+    fi
+}
+
+normal_init