Uh oh!
There was an error while loading.Please reload this page.
- Notifications
You must be signed in to change notification settings - Fork966
Expand file tree
/
Copy pathreference.py
More file actions
141 lines (111 loc) · 5.33 KB
/
reference.py
File metadata and controls
141 lines (111 loc) · 5.33 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
fromgit.utilimport (
LazyMixin,
IterableObj,
)
from .symbolicimportSymbolicReference,T_References
# typing ------------------------------------------------------------------
fromtypingimportAny,Callable,Iterator,List,Match,Optional,Tuple,Type,TypeVar,Union,TYPE_CHECKING# NOQA
fromgit.typesimportCommit_ish,PathLike,TBD,Literal,_T# NOQA
ifTYPE_CHECKING:
fromgit.repoimportRepo
# ------------------------------------------------------------------------------
__all__= ["Reference"]
#{ Utilities
defrequire_remote_ref_path(func:Callable[...,_T])->Callable[...,_T]:
"""A decorator raising a TypeError if we are not a valid remote, based on the path"""
defwrapper(self:T_References,*args:Any)->_T:
ifnotself.is_remote():
raiseValueError("ref path does not point to a remote reference: %s"%self.path)
returnfunc(self,*args)
# END wrapper
wrapper.__name__=func.__name__
returnwrapper
#}END utilities
classReference(SymbolicReference,LazyMixin,IterableObj):
"""Represents a named reference to any object. Subclasses may apply restrictions though,
i.e. Heads can only point to commits."""
__slots__= ()
_points_to_commits_only=False
_resolve_ref_on_create=True
_common_path_default="refs"
def__init__(self,repo:'Repo',path:PathLike,check_path:bool=True)->None:
"""Initialize this instance
:param repo: Our parent repository
:param path:
Path relative to the .git/ directory pointing to the ref in question, i.e.
refs/heads/master
:param check_path: if False, you can provide any path. Otherwise the path must start with the
default path prefix of this type."""
ifcheck_pathandnotstr(path).startswith(self._common_path_default+'/'):
raiseValueError(f"Cannot instantiate{self.__class__.__name__!r} from path{path}")
self.path:str# SymbolicReference converts to string atm
super(Reference,self).__init__(repo,path)
def__str__(self)->str:
returnself.name
#{ Interface
# @ReservedAssignment
defset_object(self,object:Union[Commit_ish,'SymbolicReference'],logmsg:Union[str,None]=None
)->'SymbolicReference':
"""Special version which checks if the head-log needs an update as well
:return: self"""
oldbinsha=None
iflogmsgisnotNone:
head=self.repo.head
ifnothead.is_detachedandhead.ref==self:
oldbinsha=self.commit.binsha
# END handle commit retrieval
# END handle message is set
super(Reference,self).set_object(object,logmsg)
ifoldbinshaisnotNone:
# /* from refs.c in git-source
# * Special hack: If a branch is updated directly and HEAD
# * points to it (may happen on the remote side of a push
# * for example) then logically the HEAD reflog should be
# * updated too.
# * A generic solution implies reverse symref information,
# * but finding all symrefs pointing to the given branch
# * would be rather costly for this rare event (the direct
# * update of a branch) to be worth it. So let's cheat and
# * check with HEAD only which should cover 99% of all usage
# * scenarios (even 100% of the default ones).
# */
self.repo.head.log_append(oldbinsha,logmsg)
# END check if the head
returnself
# NOTE: Don't have to overwrite properties as the will only work without a the log
@property
defname(self)->str:
""":return: (shortest) Name of this reference - it may contain path components"""
# first two path tokens are can be removed as they are
# refs/heads or refs/tags or refs/remotes
tokens=self.path.split('/')
iflen(tokens)<3:
returnself.path# could be refs/HEAD
return'/'.join(tokens[2:])
@classmethod
defiter_items(cls:Type[T_References],repo:'Repo',common_path:Union[PathLike,None]=None,
*args:Any,**kwargs:Any)->Iterator[T_References]:
"""Equivalent to SymbolicReference.iter_items, but will return non-detached
references as well."""
returncls._iter_items(repo,common_path)
#}END interface
#{ Remote Interface
@property# type: ignore ## mypy cannot deal with properties with an extra decorator (2021-04-21)
@require_remote_ref_path
defremote_name(self)->str:
"""
:return:
Name of the remote we are a reference of, such as 'origin' for a reference
named 'origin/master'"""
tokens=self.path.split('/')
# /refs/remotes/<remote name>/<branch_name>
returntokens[2]
@property# type: ignore ## mypy cannot deal with properties with an extra decorator (2021-04-21)
@require_remote_ref_path
defremote_head(self)->str:
""":return: Name of the remote head itself, i.e. master.
:note: The returned name is usually not qualified enough to uniquely identify
a branch"""
tokens=self.path.split('/')
return'/'.join(tokens[3:])
#} END remote interface