live: rewrite setup operation

Rewrites the setup operation using python-libfdisk module instead of an
external bash script. Consolidating the operation into Python's code,
limiting external subprocesses to well known programs and small
concrete tasks that are difficult to fully integrate into Python.

Use parttypes.py to fetch partition types from python-libfdisk module.
Use fs.py to create any specified supported filesystem.

OpenGnsys cache partitions are created labelling the partition as
"CACHE". Stops setting non-standard MBR hexcode (0xca) to the cache
partition in addition to the filesystem label.

Any partition specified as type EMPTY will be ignored.

src/live/ogOperations.py

@@ -20,6 +20,7 @@ import fdisk
 from src.ogClient import ogClient
 from src.ogRest import ThreadState
 from src.live.partcodes import GUID_MAP
+from src.live.parttypes import get_parttype
 
 from src.utils.legacy import *
 from src.utils.net import ethtool
@@ -27,7 +28,7 @@ from src.utils.menu import generate_menu
 from src.utils.fs import *
 from src.utils.probe import os_probe, cache_probe
 from src.utils.disk import *
-from src.utils.cache import generate_cache_txt
+from src.utils.cache import generate_cache_txt, umount_cache, init_cache
 from src.utils.tiptorrent import *
 
 
@@ -301,30 +302,57 @@ class OgLiveOperations:
         cache = request.getCache()
         cache_size = request.getCacheSize()
         partlist = request.getPartitionSetup()
-        cfg = f'dis={disk}*che={cache}*tch={cache_size}!'
+
+        self._ogbrowser_clear_logs()
+        self._restartBrowser(self._url_log)
+
+        diskname = get_disks()[int(disk)-1]
+        cxt = fdisk.Context(f'/dev/{diskname}',
+                            details=True)
+
+        if table_type == 'MSDOS':
+            cxt.create_disklabel('dos')
+        elif table_type == 'GPT':
+            cxt.create_disklabel('gpt')
 
         for part in partlist:
-            cfg += f'par={part["partition"]}*cpt={part["code"]}*' \
-                   f'sfi={part["filesystem"]}*tam={part["size"]}*' \
-                   f'ope={part["format"]}%'
-
+            logging.debug(f'Adding partition: {part}')
+            if part["code"] == 'EMPTY':
+                continue
             if ogRest.terminated:
                 break
+            if part["code"] == 'CACHE':
+                umount_cache()
 
-        cmd = f'{ogClient.OG_PATH}interfaceAdm/Configurar {table_type} {cfg}'
-        try:
-            ogRest.proc = subprocess.Popen([cmd],
-                               stdout=subprocess.PIPE,
-                               shell=True,
-                               executable=OG_SHELL)
-            (output, error) = ogRest.proc.communicate()
-        except:
-            logging.error('Exception when running setup subprocess')
-            raise ValueError('Error: Incorrect command value')
+            pa = fdisk.Partition(start_follow_default=True,
+                                 end_follow_default=False,
+                                 partno_follow_default=False)
+            parttype = get_parttype(cxt, part["code"])
+            size = int(part["size"])
+            pa.size = (size * (1 << 10)) // cxt.sector_size
+            pa.partno = int(part["partition"]) - 1
+            pa.type = parttype
+            cxt.add_partition(pa)
+
+        cxt.write_disklabel()
+        subprocess.run('partprobe')
+
+        for part in partlist:
+            if part["filesystem"] == 'EMPTY':
+                continue
+            partition = int(part["partition"])
+            fs = part["filesystem"].lower()
+            if fs == 'cache':
+                mkfs('ext4', int(disk), partition, label='CACHE')
+                init_cache()
+            else:
+                mkfs(fs, int(disk), partition)
 
         logging.info('Setup command OK')
         result = self.refresh(ogRest)
 
+        self._restartBrowser(self._url)
+
         return result
 
     def image_restore(self, request, ogRest):