File: acquire.py

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python-apt 0.7.7.1%2Bnmu1
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import apt
import apt_pkg
import os
import sys
import tempfile

def get_file(fetcher, uri, destFile):
	cwd = os.getcwd()
	# create a temp dir
	dir = tempfile.mkdtemp()
	os.chdir(dir)
	# get the file
	af = apt_pkg.GetPkgAcqFile(fetcher,
                           uri=uri,
                           descr="sample descr")
	res = fetcher.Run()
	if res != fetcher.ResultContinue:
		os.rmdir(dir)
		os.chdir(cwd)
		return False
	filename = os.path.basename(uri)
	os.rename(dir+"/"+filename,destFile)
	# cleanup
	os.rmdir(dir)
	os.chdir(cwd)
	return True

apt_pkg.init()

#apt_pkg.Config.Set("Debug::pkgDPkgPM","1");
#apt_pkg.Config.Set("Debug::pkgPackageManager","1");
#apt_pkg.Config.Set("Debug::pkgDPkgProgressReporting","1");

cache = apt_pkg.GetCache()
depcache = apt_pkg.GetDepCache(cache)

recs = apt_pkg.GetPkgRecords(cache)
list = apt_pkg.GetPkgSourceList()
list.ReadMainList()

# show the amount fetch needed for a dist-upgrade 
depcache.Upgrade(True)
progress = apt.progress.TextFetchProgress()
fetcher = apt_pkg.GetAcquire(progress)
pm = apt_pkg.GetPackageManager(depcache)
pm.GetArchives(fetcher,list,recs)
print "%s (%s)" % (apt_pkg.SizeToStr(fetcher.FetchNeeded), fetcher.FetchNeeded)
actiongroup = apt_pkg.GetPkgActionGroup(depcache)
for pkg in cache.Packages:
    depcache.MarkKeep(pkg)

try:
    os.mkdir("/tmp/pyapt-test")
    os.mkdir("/tmp/pyapt-test/partial")
except OSError:
    pass
apt_pkg.Config.Set("Dir::Cache::archives","/tmp/pyapt-test")

pkg = cache["3ddesktop"]
depcache.MarkInstall(pkg)

progress = apt.progress.TextFetchProgress()
fetcher = apt_pkg.GetAcquire(progress)
#fetcher = apt_pkg.GetAcquire()
pm = apt_pkg.GetPackageManager(depcache)

print pm
print fetcher

get_file(fetcher, "ftp://ftp.debian.org/debian/dists/README", "/tmp/lala")

pm.GetArchives(fetcher,list,recs)

for item in fetcher.Items:
    print item
    if item.Status == item.StatError:
        print "Some error ocured: '%s'" % item.ErrorText
    if item.Complete == False:
        print "No error, still nothing downloaded (%s)" % item.ErrorText
    print
                                                         

res = fetcher.Run()
print "fetcher.Run() returned: %s" % res

print "now runing pm.DoInstall()"
res = pm.DoInstall(1)
print "pm.DoInstall() returned: %s"% res