add uuid support

bin/config.py

@@ -126,3 +126,8 @@ def set_default_args():
 
 def get_timeout():
     return args.timeout or DEFAULT_TIMEOUT
+
+
+# Randomly generated uuid4 for BAPCtools
+BAPC_UUID = '8ee7605a-d1ce-47b3-be37-15de5acd757e'
+BAPC_UUID_PREFIX = 8

bin/problem.py

@@ -106,6 +106,7 @@ def _read_settings(self):
             'validation': 'default',
             'validator_flags': [],
             'author': '',
+            'uuid': None,
         }
 
         # parse problem.yaml
@@ -160,6 +161,16 @@ def _read_settings(self):
 
         self.interactive = self.settings.validation == 'custom interactive'
 
+        if self.settings.uuid == None:
+            # try to always display the same uuid (until restart)
+            stored_uuid = self.tmpdir / '.uuid'
+            if stored_uuid.is_file():
+                self.settings.uuid = stored_uuid.read_text().strip()
+            else:
+                self.settings.uuid = generate_problem_uuid()
+                stored_uuid.write_text(self.settings.uuid)
+            warn(f'Missing UUID for {self.name}, add "uuid: {self.settings.uuid}" to problem.yaml')
+
     # Walk up from absolute `path` (a file or directory) looking for the first testdata.yaml
     # file, and return its contents, or None if no testdata.yaml is found.
     def get_testdata_yaml(p, path):

bin/skel.py

@@ -186,6 +186,7 @@ def new_problem():
     variables['rights_owner'] = _ask_variable_string(
         'rights owner', variables.get('rights_owner', 'author')
     )
+    variables['uuid'] = generate_problem_uuid()
 
     # Copy tree from the skel directory, next to the contest, if it is found.
     skeldir, preserve_symlinks = get_skel_dir(target_dir)

bin/util.py

@@ -14,6 +14,7 @@
 import tempfile
 import yaml as yamllib
 import errno
+import secrets
 
 from enum import Enum
 from pathlib import Path
@@ -1049,3 +1050,17 @@ def hash_file_or_dir(file_or_dir, buffer_size=65536):
         )
     else:
         return hash_file(file_or_dir)
+
+
+def generate_problem_uuid():
+    uuid = bytearray(secrets.token_bytes(16))
+    # mark this as v8 uuid (custom uuid) variant 0
+    uuid[6] &= 0b0000_1111
+    uuid[6] |= 0b1000_0000
+    uuid[8] &= 0b0011_1111
+    # format as uuid
+    uuid = uuid.hex()
+    uuid = f'{uuid[0:8]}-{uuid[8:12]}-{uuid[12:16]}-{uuid[16:20]}-{uuid[20:32]}'
+    # make the first bytes BAPCtools specific
+    uuid = config.BAPC_UUID[:config.BAPC_UUID_PREFIX] + uuid[config.BAPC_UUID_PREFIX:]
+    return uuid

skel/problem/problem.yaml

@@ -6,6 +6,7 @@ author: {%author%}
 source: {%source%}
 # contest.region.eu
 source_url: {%source_url%}
+uuid: {%uuid%}
 license: {%license%}
 rights_owner: {%rights_owner%}
 # 'default', 'custom', or 'custom interactive'

test/problems/boolfind/problem.yaml

@@ -4,6 +4,7 @@ author: DOMjudge
 source:
 # 2020.bapc.eu
 source_url:
+uuid: 8f7ed1ba-43f5-424e-9af4-8a5f2e428ce3
 license:
 rights_owner:
 # 'default', 'custom', or 'interactive'

test/problems/different/problem.yaml

@@ -12,6 +12,9 @@ name:
 source: Kattis
 # source_url:
 
+# Unique problem uuid
+uuid: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF
+
 ## Who owns the rights to the problem (default: value of author, or
 ## value of source if no author given).
 # rights_owner:

test/problems/fltcmp/problem.yaml

@@ -4,6 +4,7 @@ author: DOMjudge
 source:
 # 2020.bapc.eu
 source_url:
+uuid: 407efad0-da0d-49a4-b925-329e929bc990
 license:
 rights_owner:
 # 'default', 'custom', or 'interactive'

test/problems/generatorincludes/problem.yaml

@@ -4,6 +4,7 @@ author: Thore Husfeldt
 source: Problems
 # contest.region.eu
 source_url: 
+uuid: 745cc994-4c3d-40cf-97c2-cc2a72af1884
 license: cc by-sa
 rights_owner: author
 # 'default', 'custom', or 'custom interactive'

test/problems/guess/problem.yaml

@@ -1,6 +1,7 @@
 name: 
   en: Guess the Number
 source: Kattis
+uuid: 4c1ca09b-af36-4cb6-82ec-2cd029c02a6a
 license: cc by-sa
 
 validation: custom interactive

test/problems/guessnoeofcheck/problem.yaml

@@ -1,6 +1,6 @@
 source: Kattis
+uuid: 1bf54011-8f0f-44fb-8030-15d9c1583979
 license: cc by-sa
-
 validation: custom interactive
 
 # Override standard limits: say that the TLE solutions provided should

test/problems/hello/problem.yaml

@@ -4,6 +4,7 @@ author: DOMjudge
 source:
 # 2020.bapc.eu
 source_url:
+uuid: 323a5d9c-b38a-4110-8483-2846c920c1ee
 license:
 rights_owner:
 # 'default', 'custom', or 'interactive'

test/problems/helloproblemtools/problem.yaml

@@ -3,6 +3,7 @@ name:
   sv: Hej Världen!
 
 source: Kattis
+uuid: 2116c8d6-814f-427c-af45-a51bc735840c
 license: public domain
 
 # Fix memory limit at 512 MB.  (Note that for most problems, this

test/problems/hellounix/problem.yaml

@@ -4,6 +4,7 @@ author: various
 # unix-y operating systems
 source:
 source_url:
+uuid: 20798d22-3227-4e48-9877-7f73d3d3236e
 license:
 rights_owner:
 validation: default

test/problems/hellowholeworld/problem.yaml

@@ -3,4 +3,5 @@ name:
   de: Hallo, ganze Welt!
   da: Hej, hele verden!
 author: Thore Husfeldt
+uuid: c7c28c31-809a-400c-84ae-f6a3b29a217a
 validation: default

test/problems/identity/problem.yaml

@@ -2,6 +2,7 @@ name: Identity
 author: Ragnar Groot Koerkamp
 source:
 source_url:
+uuid: a7d29d67-9b0b-4fd4-ae56-ab2cad5919ab
 license:
 rights_owner:
 # 'default', 'custom', or 'interactive'

test/problems/test_problem_config/problem.yaml

@@ -1,2 +1,3 @@
 name: 'ABC XYZ'
 validation: 'custom'
+uuid: 58c89b2d-616c-4291-ab8a-710b4e6cb978