author | Matt Mackall <mpm@selenic.com> |
Mon, 02 Oct 2006 12:06:33 -0500 | |
changeset 3234 | cac7be0b9b99 |
parent 3209 | 9e8dd6114a4e |
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permissions | -rw-r--r-- |
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# context.py - changeset and file context objects for mercurial |
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# |
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# Copyright 2006 Matt Mackall <mpm@selenic.com> |
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# |
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# This software may be used and distributed according to the terms |
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# of the GNU General Public License, incorporated herein by reference. |
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from demandload import * |
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from node import * |
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demandload(globals(), 'bdiff') |
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from node import * |
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from demandload import demandload |
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demandload(globals(), "ancestor util") |
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class changectx(object): |
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"""A changecontext object makes access to data related to a particular |
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changeset convenient.""" |
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def __init__(self, repo, changeid=None): |
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"""changeid is a revision number, node, or tag""" |
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self._repo = repo |
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if not changeid and changeid != 0: |
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p1, p2 = self._repo.dirstate.parents() |
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self._rev = self._repo.changelog.rev(p1) |
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if self._rev == -1: |
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changeid = 'tip' |
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else: |
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self._node = p1 |
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return |
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self._node = self._repo.lookup(changeid) |
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self._rev = self._repo.changelog.rev(self._node) |
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def __str__(self): |
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return short(self.node()) |
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def __repr__(self): |
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return "<changectx %s>" % short(self.node()) |
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def __eq__(self, other): |
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return self._rev == other._rev |
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def __nonzero__(self): |
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return self._rev != -1 |
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def changeset(self): |
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try: |
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return self._changeset |
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except AttributeError: |
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self._changeset = self._repo.changelog.read(self.node()) |
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return self._changeset |
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def manifest(self): |
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try: |
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return self._manifest |
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except AttributeError: |
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self._manifest = self._repo.manifest.read(self.changeset()[0]) |
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return self._manifest |
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def rev(self): return self._rev |
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def node(self): return self._node |
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def user(self): return self.changeset()[1] |
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def date(self): return self.changeset()[2] |
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def files(self): return self.changeset()[3] |
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def description(self): return self.changeset()[4] |
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def parents(self): |
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"""return contexts for each parent changeset""" |
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p = self._repo.changelog.parents(self._node) |
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return [ changectx(self._repo, x) for x in p ] |
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def children(self): |
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"""return contexts for each child changeset""" |
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c = self._repo.changelog.children(self._node) |
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return [ changectx(self._repo, x) for x in c ] |
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def filenode(self, path): |
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node, flag = self._repo.manifest.find(self.changeset()[0], path) |
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return node |
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def filectx(self, path, fileid=None): |
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"""get a file context from this changeset""" |
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if fileid is None: |
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fileid = self.filenode(path) |
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return filectx(self._repo, path, fileid=fileid) |
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def filectxs(self): |
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"""generate a file context for each file in this changeset's |
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manifest""" |
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mf = self.manifest() |
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m = mf.keys() |
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m.sort() |
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for f in m: |
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yield self.filectx(f, fileid=mf[f]) |
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def ancestor(self, c2): |
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""" |
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return the ancestor context of self and c2 |
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""" |
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n = self._repo.changelog.ancestor(self._node, c2._node) |
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return changectx(self._repo, n) |
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class filectx(object): |
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"""A filecontext object makes access to data related to a particular |
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filerevision convenient.""" |
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def __init__(self, repo, path, changeid=None, fileid=None, filelog=None): |
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"""changeid can be a changeset revision, node, or tag. |
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fileid can be a file revision or node.""" |
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self._repo = repo |
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self._path = path |
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assert changeid is not None or fileid is not None |
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if filelog: |
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self._filelog = filelog |
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else: |
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self._filelog = self._repo.file(self._path) |
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if fileid is None: |
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self._changeid = changeid |
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diff
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|
122 |
else: |
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|
123 |
self._filenode = self._filelog.lookup(fileid) |
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|
124 |
self._changeid = self._filelog.linkrev(self._filenode) |
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|
125 |
|
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Make filectx lazier - some users never use filenode
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|
126 |
def __getattr__(self, name): |
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|
127 |
if name == '_changectx': |
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|
128 |
self._changectx = changectx(self._repo, self._changeid) |
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|
129 |
return self._changectx |
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|
130 |
elif name == '_filenode': |
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|
131 |
self._filenode = self._changectx.filenode(self._path) |
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|
132 |
return self._filenode |
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|
133 |
elif name == '_filerev': |
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|
134 |
self._filerev = self._filelog.rev(self._filenode) |
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|
135 |
return self._filerev |
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|
136 |
else: |
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|
137 |
raise AttributeError, name |
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changeset
|
138 |
|
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05c588e1803d
context: add __nonzero__ methods
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changeset
|
139 |
def __nonzero__(self): |
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|
140 |
return self._filerev != nullid |
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changeset
|
141 |
|
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|
142 |
def __str__(self): |
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|
143 |
return "%s@%s" % (self.path(), short(self.node())) |
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changeset
|
144 |
|
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6719b3dd7d50
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diff
changeset
|
145 |
def __repr__(self): |
3154
15d585dcdd1c
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|
146 |
return "<filectx %s@%s>" % (self.path(), short(self.node())) |
3151
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diff
changeset
|
147 |
|
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e78185746554
Add equality operators to changectx and filectx
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changeset
|
148 |
def __eq__(self, other): |
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|
149 |
return self._path == other._path and self._changeid == other._changeid |
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changeset
|
150 |
|
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Add lookup method to filectx
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changeset
|
151 |
def filectx(self, fileid): |
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|
152 |
'''opens an arbitrary revision of the file without |
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|
153 |
opening a new filelog''' |
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|
154 |
return filectx(self._repo, self._path, fileid=fileid, |
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changeset
|
155 |
filelog=self._filelog) |
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changeset
|
156 |
|
2563
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Add context.py: changeset and file revision contexts
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changeset
|
157 |
def filerev(self): return self._filerev |
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changeset
|
158 |
def filenode(self): return self._filenode |
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changeset
|
159 |
def filelog(self): return self._filelog |
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Add context.py: changeset and file revision contexts
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changeset
|
160 |
|
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a5e4c8172ace
filectx: lazy linkrev usage
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diff
changeset
|
161 |
def rev(self): |
a5e4c8172ace
filectx: lazy linkrev usage
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diff
changeset
|
162 |
if hasattr(self, "_changectx"): |
a5e4c8172ace
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diff
changeset
|
163 |
return self._changectx.rev() |
a5e4c8172ace
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diff
changeset
|
164 |
return self._filelog.linkrev(self._filenode) |
a5e4c8172ace
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diff
changeset
|
165 |
|
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changeset
|
166 |
def node(self): return self._changectx.node() |
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Make filectx lazier - some users never use filenode
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changeset
|
167 |
def user(self): return self._changectx.user() |
8342ad5abe0b
Make filectx lazier - some users never use filenode
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diff
changeset
|
168 |
def date(self): return self._changectx.date() |
8342ad5abe0b
Make filectx lazier - some users never use filenode
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changeset
|
169 |
def files(self): return self._changectx.files() |
8342ad5abe0b
Make filectx lazier - some users never use filenode
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|
170 |
def description(self): return self._changectx.description() |
8342ad5abe0b
Make filectx lazier - some users never use filenode
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changeset
|
171 |
def manifest(self): return self._changectx.manifest() |
3149
ff1ab08e6732
restore filectx.changectx() method
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3146
diff
changeset
|
172 |
def changectx(self): return self._changectx |
2563
482c524dd9ab
Add context.py: changeset and file revision contexts
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diff
changeset
|
173 |
|
482c524dd9ab
Add context.py: changeset and file revision contexts
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parents:
diff
changeset
|
174 |
def data(self): return self._filelog.read(self._filenode) |
482c524dd9ab
Add context.py: changeset and file revision contexts
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parents:
diff
changeset
|
175 |
def renamed(self): return self._filelog.renamed(self._filenode) |
3130
da85145d4571
filectx: add rename traversal for parents()
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parents:
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diff
changeset
|
176 |
def path(self): return self._path |
2563
482c524dd9ab
Add context.py: changeset and file revision contexts
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parents:
diff
changeset
|
177 |
|
482c524dd9ab
Add context.py: changeset and file revision contexts
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
178 |
def parents(self): |
3132
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
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parents:
3131
diff
changeset
|
179 |
p = self._path |
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
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3131
diff
changeset
|
180 |
fl = self._filelog |
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
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parents:
3131
diff
changeset
|
181 |
pl = [ (p, n, fl) for n in self._filelog.parents(self._filenode) ] |
3131
4ea58eb3f0c9
filelog: make metadata method private
Matt Mackall <mpm@selenic.com>
parents:
3130
diff
changeset
|
182 |
|
3132
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
183 |
r = self.renamed() |
3130
da85145d4571
filectx: add rename traversal for parents()
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
184 |
if r: |
3132
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
185 |
pl[0] = (r[0], r[1], None) |
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
186 |
|
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
187 |
return [ filectx(self._repo, p, fileid=n, filelog=l) |
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
188 |
for p,n,l in pl if n != nullid ] |
2563
482c524dd9ab
Add context.py: changeset and file revision contexts
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
189 |
|
482c524dd9ab
Add context.py: changeset and file revision contexts
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
190 |
def children(self): |
482c524dd9ab
Add context.py: changeset and file revision contexts
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
191 |
# hard for renames |
482c524dd9ab
Add context.py: changeset and file revision contexts
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
192 |
c = self._filelog.children(self._filenode) |
3132
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
193 |
return [ filectx(self._repo, self._path, fileid=x, |
4d021b91cb26
filectx: allow passing filelog in init to avoid opening new filelogs
Matt Mackall <mpm@selenic.com>
parents:
3131
diff
changeset
|
194 |
filelog=self._filelog) for x in c ] |
2566
d8560b458f76
Convert hg annotate to context api
Matt Mackall <mpm@selenic.com>
parents:
2563
diff
changeset
|
195 |
|
3165
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
196 |
def annotate(self, follow=False): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
197 |
'''returns a list of tuples of (ctx, line) for each line |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
198 |
in the file, where ctx is the filectx of the node where |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
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diff
changeset
|
199 |
that line was last changed''' |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
200 |
|
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
201 |
def decorate(text, rev): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
202 |
return ([rev] * len(text.splitlines()), text) |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
203 |
|
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
204 |
def pair(parent, child): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
205 |
for a1, a2, b1, b2 in bdiff.blocks(parent[1], child[1]): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
206 |
child[0][b1:b2] = parent[0][a1:a2] |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
207 |
return child |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
208 |
|
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
209 |
getlog = util.cachefunc(lambda x: self._repo.file(x)) |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
210 |
def getctx(path, fileid): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
211 |
log = path == self._path and self._filelog or getlog(path) |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
212 |
return filectx(self._repo, path, fileid=fileid, filelog=log) |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
213 |
getctx = util.cachefunc(getctx) |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
214 |
|
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
215 |
def parents(f): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
216 |
# we want to reuse filectx objects as much as possible |
5c93dd0ae413
Refactor annotate copy support.
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3154
diff
changeset
|
217 |
p = f._path |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
218 |
pl = [ (p, f._filelog.rev(n)) for n in f._filelog.parents(f._filenode) ] |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
219 |
|
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
220 |
if follow: |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
221 |
r = f.renamed() |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
222 |
if r: |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
223 |
pl[0] = (r[0], getlog(r[0]).rev(r[1])) |
3146
e69a0cbe268e
filectx.annotate: return filectx for each line instead of rev
Brendan Cully <brendan@kublai.com>
parents:
3144
diff
changeset
|
224 |
|
3165
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
225 |
return [ getctx(p, n) for p, n in pl if n != -1 ] |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
226 |
|
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
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diff
changeset
|
227 |
# find all ancestors |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
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diff
changeset
|
228 |
needed = {self: 1} |
5c93dd0ae413
Refactor annotate copy support.
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diff
changeset
|
229 |
visit = [self] |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
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diff
changeset
|
230 |
files = [self._path] |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
231 |
while visit: |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
232 |
f = visit.pop(0) |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
233 |
for p in parents(f): |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
234 |
if p not in needed: |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
235 |
needed[p] = 1 |
5c93dd0ae413
Refactor annotate copy support.
Brendan Cully <brendan@kublai.com>
parents:
3154
diff
changeset
|
236 |
visit.append(p) |
5c93dd0ae413
Refactor annotate copy support.
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parents:
3154
diff
changeset
|
237 |
if p._path not in files: |
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files.append(p._path) |
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239 |
else: |
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240 |
# count how many times we'll use this |
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241 |
needed[p] += 1 |
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242 |
|
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243 |
# sort by revision (per file) which is a topological order |
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244 |
visit = [] |
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245 |
files.reverse() |
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246 |
for f in files: |
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fn = [(n._filerev, n) for n in needed.keys() if n._path == f] |
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248 |
fn.sort() |
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249 |
visit.extend(fn) |
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250 |
hist = {} |
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251 |
|
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252 |
for r, f in visit: |
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253 |
curr = decorate(f.data(), f) |
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254 |
for p in parents(f): |
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255 |
if p != nullid: |
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256 |
curr = pair(hist[p], curr) |
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257 |
# trim the history of unneeded revs |
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258 |
needed[p] -= 1 |
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259 |
if not needed[p]: |
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260 |
del hist[p] |
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261 |
hist[f] = curr |
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262 |
|
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return zip(hist[f][0], hist[f][1].splitlines(1)) |
3132
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264 |
|
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def ancestor(self, fc2): |
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266 |
""" |
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find the common ancestor file context, if any, of self, and fc2 |
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""" |
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269 |
|
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acache = {} |
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271 |
flcache = {self._path:self._filelog, fc2._path:fc2._filelog} |
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272 |
def parents(vertex): |
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273 |
if vertex in acache: |
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274 |
return acache[vertex] |
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275 |
f, n = vertex |
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276 |
if f not in flcache: |
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277 |
flcache[f] = self._repo.file(f) |
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fl = flcache[f] |
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279 |
pl = [ (f,p) for p in fl.parents(n) if p != nullid ] |
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280 |
re = fl.renamed(n) |
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281 |
if re: |
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282 |
pl.append(re) |
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283 |
acache[vertex]=pl |
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284 |
return pl |
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285 |
|
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286 |
a, b = (self._path, self._filenode), (fc2._path, fc2._filenode) |
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287 |
v = ancestor.ancestor(a, b, parents) |
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288 |
if v: |
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289 |
f,n = v |
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290 |
return filectx(self._repo, f, fileid=n, filelog=flcache[f]) |
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291 |
|
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292 |
return None |