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path: root/scripts/rpm-createsolvedb.py
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#!/usr/bin/env python
#
# This script generates a solution database for a directory containing rpm packages
# but tries to be efficient about this, only doing so when the packages have changed
# in some way.
#
# It is assumed something already went through and removed all the solvedb.done stamp files
# in advance.
#
# First argument - the rpm binary to use
# Subsequent arguments - paths to process solution databases for
#

import sys, os
import hashlib
import stat
import subprocess

if len(sys.argv) < 1:
    print("Error, rpm command not specified")
    sys.exit(1)

if len(sys.argv) < 2:
    print("Error, no paths specified")
    sys.exit(1)

paths = sys.argv[2:]

for path in paths:
    if os.path.exists(path + "/solvedb.done"):
        continue
    data = ""
    manifest = []
    for root, dirs, files in os.walk(path):
        for file in files:
            f = os.path.join(root, file)
            if f.startswith(path + "/" + "solvedb"):
                continue
            data = data + str(os.stat(f)[stat.ST_MTIME])
            manifest.append(f)
    checksum = hashlib.md5(data).hexdigest()

    if os.path.exists(path + "/solvedb.checksum") and open(path + "/solvedb.checksum", "r").read() == checksum:
        open(path + "/solvedb.done", "w")
        continue

    if os.path.exists(path + "/solvedb"):
        subprocess.call("rm -rf %s" % (path + "/solvedb"), shell=True)
    os.mkdir(path + "/solvedb")
    m = open(path + "/solvedb/manifest", "w")
    m.write("# Dynamically generated solve manifest\n")
    for f in manifest:
        m.write(f + "\n")
    m.close()

    cmd = sys.argv[1] + ' -i --replacepkgs --replacefiles --oldpackage -D "_dbpath ' + path + '/solvedb" --justdb \
			--noaid --nodeps --noorder --noscripts --notriggers --noparentdirs --nolinktos --stats \
			--ignoresize --nosignature --nodigest -D "__dbi_txn create nofsync" \
			' + path + '/solvedb/manifest'
    subprocess.call(cmd, shell=True)

    open(path + "/solvedb.checksum", "w").write(checksum)
    open(path + "/solvedb.done", "w")