diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 12 |
1 files changed, 8 insertions, 4 deletions
@@ -27,6 +27,10 @@ Import a full mirror (only http supported): ./autoimport.py -n -p http://your.mirror.example/debian +After changing the database, a few tables caching expensive computations need +to be (re)generated. Execute `./update_sharing.py`. Without this step the web +interface will report wrong results. + Viewing the results ------------------- Run `./webapp.py` and enjoy a webinterface at `0.0.0.0:8800` or inspect the @@ -34,17 +38,17 @@ SQL database by hand. Here are some example queries. Finding the 100 largest files shared with multiple packages. - SELECT a.package, a.filename, b.package, b.filename, a.size FROM content AS a JOIN hash AS ha ON a.id = ha.cid JOIN hash AS hb ON ha.hash = hb.hash JOIN content AS b ON b.id = hb.cid WHERE (a.package != b.package OR a.filename != b.filename) ORDER BY a.size DESC LIMIT 100; + SELECT pa.name, a.filename, pb.name, b.filename, a.size FROM content AS a JOIN hash AS ha ON a.id = ha.cid JOIN hash AS hb ON ha.hash = hb.hash JOIN content AS b ON b.id = hb.cid JOIN package AS pa ON b.pid = pa.id JOIN package AS pb ON b.pid = pb.id WHERE (a.pid != b.pid OR a.filename != b.filename) ORDER BY a.size DESC LIMIT 100; Finding those top 100 files that save most space when being reduced to only one copy in the archive. - SELECT hash, sum(size)-min(size), count(*), count(distinct package) FROM content JOIN hash ON content.id = hash.cid WHERE hash.function = "sha512" GROUP BY hash ORDER BY sum(size)-min(size) DESC LIMIT 100; + SELECT hash, sum(size)-min(size), count(*), count(distinct pid) FROM content JOIN hash ON content.id = hash.cid WHERE hash.function = "sha512" GROUP BY hash ORDER BY sum(size)-min(size) DESC LIMIT 100; Finding PNG images that do not carry a .png file extension. - SELECT package, filename, size FROM content JOIN hash ON content.id = hash.cid WHERE function = "image_sha512" AND filename NOT LIKE "%.png"; + SELECT package.name, content.filename, content.size FROM content JOIN hash ON content.id = hash.cid JOIN package ON content.pid = package.id WHERE function = "image_sha512" AND filename NOT LIKE "%.png"; Finding .gz files which either are not gziped or contain errors. - SELECT content.package, content.filename FROM content WHERE filename LIKE "%.gz" AND (SELECT count(*) FROM hash WHERE hash.cid = content.id AND hash.function = "gzip_sha512") = 0; + SELECT package.name, content.filename FROM content JOIN package ON content.pid = package.id WHERE filename LIKE "%.gz" AND (SELECT count(*) FROM hash WHERE hash.cid = content.id AND hash.function = "gzip_sha512") = 0; |