clfilter: add mutable filtering
It filters all mutable changesets, leaving only public changeset unfiltered.
This filtering set is expected to be much more stable that the previous one as
public changeset are unlikely to disapear.
The only official use of this filter is for branchcache.
[ original upstream message ]
importos,stat,socketimportreimportsysimporttempfiletempprefix='hg-hghave-'defmatchoutput(cmd,regexp,ignorestatus=False):"""Return True if cmd executes successfully and its output is matched by the supplied regular expression. """r=re.compile(regexp)fh=os.popen(cmd)s=fh.read()try:ret=fh.close()exceptIOError:# Happen in Windows test environmentret=1return(ignorestatusorretisNone)andr.search(s)defhas_baz():returnmatchoutput('baz --version 2>&1',r'baz Bazaar version')defhas_bzr():try:importbzrlibreturnbzrlib.__doc__isnotNoneexceptImportError:returnFalsedefhas_bzr114():try:importbzrlibreturn(bzrlib.__doc__isnotNoneandbzrlib.version_info[:2]>=(1,14))exceptImportError:returnFalsedefhas_cvs():re=r'Concurrent Versions System.*?server'returnmatchoutput('cvs --version 2>&1',re)andnothas_msys()defhas_darcs():returnmatchoutput('darcs --version',r'2\.[2-9]',True)defhas_mtn():returnmatchoutput('mtn --version',r'monotone',True)andnotmatchoutput('mtn --version',r'monotone 0\.',True)defhas_eol_in_paths():try:fd,path=tempfile.mkstemp(dir='.',prefix=tempprefix,suffix='\n\r')os.close(fd)os.remove(path)returnTrueexcept(IOError,OSError):returnFalsedefhas_executablebit():try:EXECFLAGS=stat.S_IXUSR|stat.S_IXGRP|stat.S_IXOTHfh,fn=tempfile.mkstemp(dir='.',prefix=tempprefix)try:os.close(fh)m=os.stat(fn).st_mode&0777new_file_has_exec=m&EXECFLAGSos.chmod(fn,m^EXECFLAGS)exec_flags_cannot_flip=((os.stat(fn).st_mode&0777)==m)finally:os.unlink(fn)except(IOError,OSError):# we don't care, the user probably won't be able to commit anywayreturnFalsereturnnot(new_file_has_execorexec_flags_cannot_flip)defhas_icasefs():# Stolen from mercurial.utilfd,path=tempfile.mkstemp(dir='.',prefix=tempprefix)os.close(fd)try:s1=os.stat(path)d,b=os.path.split(path)p2=os.path.join(d,b.upper())ifpath==p2:p2=os.path.join(d,b.lower())try:s2=os.stat(p2)returns2==s1exceptOSError:returnFalsefinally:os.remove(path)defhas_inotify():try:importhgext.inotify.linux.watcherexceptImportError:returnFalsename=tempfile.mktemp(dir='.',prefix=tempprefix)sock=socket.socket(socket.AF_UNIX)try:sock.bind(name)exceptsocket.error,err:returnFalsesock.close()os.unlink(name)returnTruedefhas_fifo():ifgetattr(os,"mkfifo",None)isNone:returnFalsename=tempfile.mktemp(dir='.',prefix=tempprefix)try:os.mkfifo(name)os.unlink(name)returnTrueexceptOSError:returnFalsedefhas_killdaemons():returnTruedefhas_cacheable_fs():frommercurialimportutilfd,path=tempfile.mkstemp(dir='.',prefix=tempprefix)os.close(fd)try:returnutil.cachestat(path).cacheable()finally:os.remove(path)defhas_lsprof():try:import_lsprofreturnTrueexceptImportError:returnFalsedefhas_gettext():returnmatchoutput('msgfmt --version','GNU gettext-tools')defhas_git():returnmatchoutput('git --version 2>&1',r'^git version')defhas_docutils():try:fromdocutils.coreimportpublish_cmdlinereturnTrueexceptImportError:returnFalsedefgetsvnversion():m=matchoutput('svn --version --quiet 2>&1',r'^(\d+)\.(\d+)')ifnotm:return(0,0)return(int(m.group(1)),int(m.group(2)))defhas_svn15():returngetsvnversion()>=(1,5)defhas_svn13():returngetsvnversion()>=(1,3)defhas_svn():returnmatchoutput('svn --version 2>&1',r'^svn, version')and \matchoutput('svnadmin --version 2>&1',r'^svnadmin, version')defhas_svn_bindings():try:importsvn.coreversion=svn.core.SVN_VER_MAJOR,svn.core.SVN_VER_MINORifversion<(1,4):returnFalsereturnTrueexceptImportError:returnFalsedefhas_p4():return(matchoutput('p4 -V',r'Rev\. P4/')andmatchoutput('p4d -V',r'Rev\. P4D/'))defhas_symlink():ifgetattr(os,"symlink",None)isNone:returnFalsename=tempfile.mktemp(dir='.',prefix=tempprefix)try:os.symlink(".",name)os.unlink(name)returnTrueexcept(OSError,AttributeError):returnFalsedefhas_hardlink():frommercurialimportutilfh,fn=tempfile.mkstemp(dir='.',prefix=tempprefix)os.close(fh)name=tempfile.mktemp(dir='.',prefix=tempprefix)try:try:util.oslink(fn,name)os.unlink(name)returnTrueexceptOSError:returnFalsefinally:os.unlink(fn)defhas_tla():returnmatchoutput('tla --version 2>&1',r'The GNU Arch Revision')defhas_gpg():returnmatchoutput('gpg --version 2>&1',r'GnuPG')defhas_unix_permissions():d=tempfile.mkdtemp(dir='.',prefix=tempprefix)try:fname=os.path.join(d,'foo')forumaskin(077,007,022):os.umask(umask)f=open(fname,'w')f.close()mode=os.stat(fname).st_modeos.unlink(fname)ifmode&0777!=~umask&0666:returnFalsereturnTruefinally:os.rmdir(d)defhas_pyflakes():returnmatchoutput("sh -c \"echo 'import re' 2>&1 | pyflakes\"",r"<stdin>:1: 're' imported but unused",True)defhas_pygments():try:importpygmentsreturnTrueexceptImportError:returnFalsedefhas_outer_repo():# failing for other reasons than 'no repo' imply that there is a reporeturnnotmatchoutput('hg root 2>&1',r'abort: no repository found',True)defhas_ssl():try:importsslimportOpenSSLOpenSSL.SSL.ContextreturnTrueexceptImportError:returnFalsedefhas_windows():returnos.name=='nt'defhas_system_sh():returnos.name!='nt'defhas_serve():returnos.name!='nt'# gross approximationdefhas_tic():returnmatchoutput('test -x "`which tic`"','')defhas_msys():returnos.getenv('MSYSTEM')checks={"true":(lambda:True,"yak shaving"),"false":(lambda:False,"nail clipper"),"baz":(has_baz,"GNU Arch baz client"),"bzr":(has_bzr,"Canonical's Bazaar client"),"bzr114":(has_bzr114,"Canonical's Bazaar client >= 1.14"),"cacheable":(has_cacheable_fs,"cacheable filesystem"),"cvs":(has_cvs,"cvs client/server"),"darcs":(has_darcs,"darcs client"),"docutils":(has_docutils,"Docutils text processing library"),"eol-in-paths":(has_eol_in_paths,"end-of-lines in paths"),"execbit":(has_executablebit,"executable bit"),"fifo":(has_fifo,"named pipes"),"gettext":(has_gettext,"GNU Gettext (msgfmt)"),"git":(has_git,"git command line client"),"gpg":(has_gpg,"gpg client"),"hardlink":(has_hardlink,"hardlinks"),"icasefs":(has_icasefs,"case insensitive file system"),"inotify":(has_inotify,"inotify extension support"),"killdaemons":(has_killdaemons,'killdaemons.py support'),"lsprof":(has_lsprof,"python lsprof module"),"mtn":(has_mtn,"monotone client (>= 1.0)"),"outer-repo":(has_outer_repo,"outer repo"),"p4":(has_p4,"Perforce server and client"),"pyflakes":(has_pyflakes,"Pyflakes python linter"),"pygments":(has_pygments,"Pygments source highlighting library"),"serve":(has_serve,"platform and python can manage 'hg serve -d'"),"ssl":(has_ssl,"python >= 2.6 ssl module and python OpenSSL"),"svn":(has_svn,"subversion client and admin tools"),"svn13":(has_svn13,"subversion client and admin tools >= 1.3"),"svn15":(has_svn15,"subversion client and admin tools >= 1.5"),"svn-bindings":(has_svn_bindings,"subversion python bindings"),"symlink":(has_symlink,"symbolic links"),"system-sh":(has_system_sh,"system() uses sh"),"tic":(has_tic,"terminfo compiler"),"tla":(has_tla,"GNU Arch tla client"),"unix-permissions":(has_unix_permissions,"unix-style permissions"),"windows":(has_windows,"Windows"),"msys":(has_msys,"Windows with MSYS"),}