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authorRichard Purdie <richard.purdie@linuxfoundation.org>2012-02-09 14:09:18 +0000
committerRichard Purdie <richard.purdie@linuxfoundation.org>2012-04-30 11:37:30 +0100
commit4a0c704c803d927fc8c5574453c8e37b838af8b2 (patch)
tree57213863747b03ddf318a2102cf09403762d5733 /scripts
parent53cf1a8977691827ace66ecc4aa5bf4b4a13d9f1 (diff)
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package_rpm: Only rebuild the indexes if the packages have changed
This change farms the solvedb creation out to a separate script which handles creation of the index, only if mtime of any of the packages has changed. For a core-image-minimal set of rpm's this saves ~20s of a 45s rootfs build. For core-image-sato it saves 1 minute of a 5 minute rootfs build. The more packages in the system, the bigger the saving will be. (From OE-Core rev: 3021136e7b42ab64ca16f30c88467c4b00d51ee0) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/rpm-createsolvedb.py63
1 files changed, 63 insertions, 0 deletions
diff --git a/scripts/rpm-createsolvedb.py b/scripts/rpm-createsolvedb.py
new file mode 100755
index 0000000000..0d5f2198a9
--- /dev/null
+++ b/scripts/rpm-createsolvedb.py
@@ -0,0 +1,63 @@
+#!/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
+
+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"):
+ os.system("rm -rf %s" % (path + "/solvedb"))
+ 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'
+ os.system(cmd)
+
+ open(path + "/solvedb.checksum", "w").write(checksum)
+ open(path + "/solvedb.done", "w")
+