* Caching of "path" inputs, and fake a revision number for those.

[?]

Nov 25, 2008, 2:59 PM

6BLUKEQ2M5RGWMPXPYIFIEVEUBV4PYAZ75S2WSBIATMRGYFMQZHQC

Dependencies

[2] H7CNGK4O * Log evaluation errors etc. in the DB.
[3] B72GLND4
[4] YTZOC7C5 * Editing of jobset inputs.
[5] J5UVLXOK * Start of a basic Catalyst web interface.
[6] VCOSLZRP
[7] GWCV3TQV * BuildInputs table: link to dependencies, include store paths.
[8] PHX2HIVG * Store info about the build inputs in the build record.
[9] 67P45PY4
[10] IK53RV4V
[11] WYN733ST * Store build duration, handle cached builds.
[12] TQKGQ5R3
[13] BVOPAMLS
[14] DVNWJXWW * Generic declaration of build products.
[15] L2E6EVE2 * Merged the Build and Job tables.
[16] SHBLLAVH * More global substitution.
[17] CLJQCY2X * Store info about all the build actions and allow them to be
[18] 7YBYT2LQ
[19] X27GNHDV * Basic job info in the database.
[20] HJLYC753 * Adding input value alternatives.
[21] BD3GRK4B * Get rid of "positive failures" and separate log phases.
[22] ZEHSSVFG
[23] M552HLIA * Support variant builds.
[24] KOTB7BKV
[25] TLZ2SPBR
[26] FDE3BJAP * Refactoring.
[*] N22GPKYT * Put info about logs / build products in the DB.

Change contents

replacement in src/Hydra/lib/Hydra/Schema/Buildinputs.pm at line 39

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:H8JAWhQt1ehZTEEPH2KGBw

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replacement in src/Hydra/lib/Hydra/Schema/Buildproducts.pm at line 36

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:EAo0rZSn+5Q5OY7Y1xjuyA

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# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:Fj95oLQNEptO9LgSfclVGQ
replacement in src/Hydra/lib/Hydra/Schema/Buildresultinfo.pm at line 30

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:5R03Kdy5ujkr7s9OfCNbTA

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replacement in src/Hydra/lib/Hydra/Schema/Builds.pm at line 73

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
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replacement in src/Hydra/lib/Hydra/Schema/Buildschedulinginfo.pm at line 26

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:MkMR6pE6mrN2BQL18ROYfA

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 15:16:17
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:81cloGb6HT/PTPgzB8v5Tg
replacement in src/Hydra/lib/Hydra/Schema/Buildsteps.pm at line 38

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
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replacement in src/Hydra/lib/Hydra/Schema/Jobsetinputalts.pm at line 34

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
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replacement in src/Hydra/lib/Hydra/Schema/Jobsetinputs.pm at line 46

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:BCzeQkhJYieHoL4ppjdJvw

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replacement in src/Hydra/lib/Hydra/Schema/Jobsets.pm at line 51

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
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replacement in src/Hydra/lib/Hydra/Schema/Projects.pm at line 33

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 15:16:17
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replacement in src/Hydra/lib/Hydra/Schema.pm at line 11

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 12:58:40
# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:iYwU4nHj9C2HkHwpYlVygQ

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# Created by DBIx::Class::Schema::Loader v0.04005 @ 2008-11-25 15:16:17
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edit in src/Hydra/programs/Scheduler.pl at line 7

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use POSIX qw(strftime);
replacement in src/Hydra/programs/Scheduler.pl at line 48

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print "copying input ", $input->name, " from $uri\n";

my $storePath = `nix-store --add "$uri"`
or die "cannot copy path $uri to the Nix store";
chomp $storePath;

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my $timestamp = time;
my $sha256;
my $storePath;

# Some simple caching: don't check a path more than once every N seconds.
(my $cachedInput) = $db->resultset('Cachedpathinputs')->search(
{srcpath => $uri, lastseen => {">", $timestamp - 60}},
{rows => 1, order_by => "lastseen DESC"});

if (defined $cachedInput && isValidPath($cachedInput->storepath)) {
print "CACHED $uri $cachedInput ", $cachedInput->timestamp, " ", $cachedInput->timestamp, "\n";
$storePath = $cachedInput->storepath;
$sha256 = $cachedInput->sha256hash;
$timestamp = $cachedInput->timestamp;
} else {

print "copying input ", $input->name, " from $uri\n";
$storePath = `nix-store --add "$uri"`
or die "cannot copy path $uri to the Nix store";
chomp $storePath;

$sha256 = getStorePathHash $storePath;

($cachedInput) = $db->resultset('Cachedpathinputs')->search(
{srcpath => $uri, sha256hash => $sha256});

# Path inputs don't have a natural notion of a "revision",
# so we simulate it by using the timestamp that we first
# saw this path have this SHA-256 hash. So if the
# contents of the path changes, we get a new "revision",
# but if it doesn't change (or changes back), we don't get
# a new "revision".
if (!defined $cachedInput) {
$db->txn_do(sub {
$db->resultset('Cachedpathinputs')->create(
{ srcpath => $uri
, timestamp => $timestamp
, lastseen => $timestamp
, sha256hash => $sha256
, storepath => $storePath
});
});
} else {
$timestamp = $cachedInput->timestamp;
$db->txn_do(sub {
$cachedInput->lastseen(time);
$cachedInput->update;
});
}
}
replacement in src/Hydra/programs/Scheduler.pl at line 104

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, sha256hash => getStorePathHash $storePath

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, sha256hash => $sha256
, revision => strftime "%Y%m%d%H%M%S", gmtime($timestamp)
replacement in src/Hydra/programs/Scheduler.pl at line 183

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#, revision => $input->{orig}->revision
#, tag => $input->{orig}->tag

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, revision => $input->{revision}
replacement in src/Hydra/programs/Scheduler.pl at line 231

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fetchInput($input, $alt, $inputInfo); # !!! caching

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fetchInput($input, $alt, $inputInfo);
replacement in src/Hydra/programs/Scheduler.pl at line 234

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push @newArgs, "--arg", $argName, "{path = " . $inputInfo->{$argName}->{storePath} . ";}";

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push @newArgs, "--arg", $argName,
"{path = " . $inputInfo->{$argName}->{storePath} . ";" .
" rev = \"" . $inputInfo->{$argName}->{revision} . "\";}";
replacement in src/Hydra/root/build.tt at line 132

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<tr><th>Name</th><th>Type</th><th>What</th><th>Store path</th></tr>

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<tr><th>Name</th><th>Type</th><th>Value</th><th>Revision</th><th>Store path</th></tr>
edit in src/Hydra/root/build.tt at line 148

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<td>[% IF input.revision %][% input.revision %][% END %]</td>
edit in src/hydra.sql at line 227

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);

-- Cache for inputs of type "path" (used for testing Hydra), storing
-- the SHA-256 hash and store path for each source path. Also stores
-- the timestamp when we first saw the path have these contents, which
-- may be used to generate release names.
create table CachedPathInputs (
srcPath text not null,
timestamp integer not null, -- when we first saw this hash
lastSeen integer not null, -- when we last saw this hash
sha256hash text not null,
storePath text not null,
primary key (srcPath, sha256hash)