diff options
| -rw-r--r-- | sys-apps/portage/files/unmerge | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/sys-apps/portage/files/unmerge b/sys-apps/portage/files/unmerge new file mode 100644 index 000000000000..846ce4f03d68 --- /dev/null +++ b/sys-apps/portage/files/unmerge @@ -0,0 +1,127 @@ +#!/usr/bin/env python + +import sys +import os +norm=os.path.normpath +import string +from commands import * + +def pkgscript(x): + myresult=getstatusoutput("/usr/bin/ebuild "+myebuildfile+" "+x) + if myresult[0] or myresult[1]: + print + if myresult[0]: + print "Error code from",pkgname,x,"script --",myresult[0] + if myresult[1]: + print "Output from",pkgname,x,"script:" + print + print myresult[1] + +def md5(x): + myresult=getstatusoutput("/usr/bin/md5sum "+x) + return string.split(myresult[1]," ")[0] + +def getmtime(x): + return `os.lstat(x)[-2]` + +try: + myroot=os.environ["ROOT"] +except KeyError: + myroot="/" + +for pkgname in sys.argv[1:]: + if os.path.isdir(os.path.normpath(myroot+"var/db/pkg/"+pkgname)): + if myroot=="/": + print "Unmerging",pkgname+"..." + else: + print "Unmerging",pkgname,"from",myroot+"..." + print + else: + print pkgname,"not installed" + continue + try: + contents=open(os.path.normpath(myroot+"var/db/pkg/"+pkgname+"/CONTENTS")) + except: + print "Error -- could not open CONTENTS file for", pkgname+". Aborting." + sys.exit(1) + pkgfiles={} + for line in contents.readlines(): + mydat=string.split(line) + # we do this so we can remove from non-root filesystems + # (use the ROOT var to allow maintenance on other partitions) + mydat[1]=os.path.normpath(myroot+mydat[1][1:]) + if mydat[0]=="obj": + #format: type, mtime, md5sum + pkgfiles[mydat[1]]=[mydat[0], mydat[3], mydat[2]] + elif mydat[0]=="dir": + #format: type + pkgfiles[mydat[1]]=[mydat[0] ] + elif mydat[0]=="sym": + #format: type, mtime, dest + pkgfiles[mydat[1]]=[mydat[0], mydat[4], mydat[3]] + else: + print "Error -- CONTENTS file for", pkgname, "is corrupt." + print ">>> "+line + sys.exit(1) + # we don't want to automatically remove the ebuild file listed + # in the CONTENTS file. We'll do after everything else has + # completed successfully. + myebuildfile=os.path.normpath(myroot+"var/db/pkg/"+pkgname+"/"+pkgname+".ebuild") + if pkgfiles.has_key(myebuildfile): + del pkgfiles[myebuildfile] + + mykeys=pkgfiles.keys() + mykeys.sort() + mykeys.reverse() + + #prerm script + pkgscript("prerm") + + for obj in mykeys: + obj=norm(obj) + if not os.path.exists(obj): + print "--- !found", pkgfiles[obj][0], obj + continue + if (pkgfiles[obj][0]!="dir") and (getmtime(obj) != pkgfiles[obj][1]): + print "--- !mtime", pkgfiles[obj][0], obj + continue + if pkgfiles[obj][0]=="dir": + if not os.path.isdir(obj): + print "--- !dir ","dir", obj + continue + if os.listdir(obj): + print "--- !empty","dir", obj + continue + os.rmdir(obj) + print "<<< ","dir",obj + elif pkgfiles[obj][0]=="sym": + if not os.path.islink(obj): + print "--- !sym ","sym", obj + continue + mydest=os.readlink(obj) + if mydest != pkgfiles[obj][2]: + print "--- !destn","sym", obj + continue + os.unlink(obj) + print "<<< ","sym",obj + elif pkgfiles[obj][0]=="obj": + if not os.path.isfile(obj): + print "--- !obj ","obj", obj + continue + mymd5=md5(obj) + if mymd5 != pkgfiles[obj][2]: + print "--- !md5 ","obj", obj + continue + os.unlink(obj) + print "<<< ","obj",obj + #postrm script + pkgscript("postrm") + #recursive cleanup + for thing in os.listdir(myroot+"var/db/pkg/"+pkgname): + os.unlink(myroot+"var/db/pkg/"+pkgname+"/"+thing) + os.rmdir(myroot+"var/db/pkg/"+pkgname) + print + if myroot=="/": + print pkgname,"unmerged." + else: + print pkgname,"unmerged from",myroot+"." |