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record: move scanpatch from record to patch

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Part of a series of patches to move record from hgext to core
This commit is contained in:
Laurent Charignon 2015-03-09 13:14:31 -07:00
parent b8126743d5
commit 18e7b1d4da
2 changed files with 55 additions and 56 deletions
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59
hgext/record.py
View File

@ -10,65 +10,12 @@
from mercurial.i18n import _
from mercurial import cmdutil, commands, extensions, hg, patch
from mercurial import util
import copy, cStringIO, errno, os, re, shutil, tempfile
import copy, cStringIO, errno, os, shutil, tempfile
cmdtable = {}
command = cmdutil.command(cmdtable)
testedwith = 'internal'
lines_re = re.compile(r'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)')
def scanpatch(fp):
"""like patch.iterhunks, but yield different events
- ('file', [header_lines + fromfile + tofile])
- ('context', [context_lines])
- ('hunk', [hunk_lines])
- ('range', (-start,len, +start,len, proc))
"""
lr = patch.linereader(fp)
def scanwhile(first, p):
"""scan lr while predicate holds"""
lines = [first]
while True:
line = lr.readline()
if not line:
break
if p(line):
lines.append(line)
else:
lr.push(line)
break
return lines
while True:
line = lr.readline()
if not line:
break
if line.startswith('diff --git a/') or line.startswith('diff -r '):
def notheader(line):
s = line.split(None, 1)
return not s or s[0] not in ('---', 'diff')
header = scanwhile(line, notheader)
fromfile = lr.readline()
if fromfile.startswith('---'):
tofile = lr.readline()
header += [fromfile, tofile]
else:
lr.push(fromfile)
yield 'file', header
elif line[0] == ' ':
yield 'context', scanwhile(line, lambda l: l[0] in ' \\')
elif line[0] in '-+':
yield 'hunk', scanwhile(line, lambda l: l[0] in '-+\\')
else:
m = lines_re.match(line)
if m:
yield 'range', m.groups()
else:
yield 'other', line
def parsepatch(fp):
"""patch -> [] of headers -> [] of hunks """
@ -93,7 +40,7 @@ def parsepatch(fp):
def addcontext(self, context):
if self.hunk:
h = patch.recordhunk(self.header, self.fromline, self.toline,
self.proc, self.before, self.hunk, context)
self.proc, self.before, self.hunk, context)
self.header.hunks.append(h)
self.fromline += len(self.before) + h.removed
self.toline += len(self.before) + h.added
@ -141,7 +88,7 @@ def parsepatch(fp):
p = parser()
state = 'context'
for newstate, data in scanpatch(fp):
for newstate, data in patch.scanpatch(fp):
try:
p.transitions[state][newstate](p, data)
except KeyError:

52
mercurial/patch.py
View File

@ -1276,6 +1276,58 @@ def makepatchmeta(backend, afile_orig, bfile_orig, hunk, strip, prefix):
gp.op = 'DELETE'
return gp
def scanpatch(fp):
"""like patch.iterhunks, but yield different events
- ('file', [header_lines + fromfile + tofile])
- ('context', [context_lines])
- ('hunk', [hunk_lines])
- ('range', (-start,len, +start,len, proc))
"""
lines_re = re.compile(r'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)')
lr = linereader(fp)
def scanwhile(first, p):
"""scan lr while predicate holds"""
lines = [first]
while True:
line = lr.readline()
if not line:
break
if p(line):
lines.append(line)
else:
lr.push(line)
break
return lines
while True:
line = lr.readline()
if not line:
break
if line.startswith('diff --git a/') or line.startswith('diff -r '):
def notheader(line):
s = line.split(None, 1)
return not s or s[0] not in ('---', 'diff')
header = scanwhile(line, notheader)
fromfile = lr.readline()
if fromfile.startswith('---'):
tofile = lr.readline()
header += [fromfile, tofile]
else:
lr.push(fromfile)
yield 'file', header
elif line[0] == ' ':
yield 'context', scanwhile(line, lambda l: l[0] in ' \\')
elif line[0] in '-+':
yield 'hunk', scanwhile(line, lambda l: l[0] in '-+\\')
else:
m = lines_re.match(line)
if m:
yield 'range', m.groups()
else:
yield 'other', line
def scangitpatch(lr, firstline):
"""
Git patches can emit: