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Enable declarative projects.

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This allows fully declarative project specifications. This is best
illustrated by example:

* I create a new project, setting the declarative spec file to
  "spec.json" and the declarative input to a git repo pointing
  at git://github.com/shlevy/declarative-hydra-example.git
* hydra creates a special ".jobsets" jobset alongside the project
* Just before evaluating the ".jobsets" jobset, hydra fetches
  declarative-hydra-example.git, reads spec.json as a jobset spec,
  and updates the jobset's configuration accordingly:
{
    "enabled": 1,
    "hidden": false,
    "description": "Jobsets",
    "nixexprinput": "src",
    "nixexprpath": "default.nix",
    "checkinterval": 300,
    "schedulingshares": 100,
    "enableemail": false,
    "emailoverride": "",
    "keepnr": 3,
    "inputs": {
        "src": { "type": "git", "value": "git://github.com/shlevy/declarative-hydra-example.git", "emailresponsible": false },
        "nixpkgs": { "type": "git", "value": "git://github.com/NixOS/nixpkgs.git release-16.03", "emailresponsible": false }
    }
}
* When the "jobsets" job of the ".jobsets" jobset completes, hydra
  reads its output as a JSON representation of a dictionary of
  jobset specs and creates a jobset named "master" configured
  accordingly (In this example, this is the same configuration as
  .jobsets itself, except using release.nix instead of default.nix):
{
    "enabled": 1,
    "hidden": false,
    "description": "js",
    "nixexprinput": "src",
    "nixexprpath": "release.nix",
    "checkinterval": 300,
    "schedulingshares": 100,
    "enableemail": false,
    "emailoverride": "",
    "keepnr": 3,
    "inputs": {
        "src": { "type": "git", "value": "git://github.com/shlevy/declarative-hydra-example.git", "emailresponsible": false },
        "nixpkgs": { "type": "git", "value": "git://github.com/NixOS/nixpkgs.git release-16.03", "emailresponsible": false }
    }
}
This commit is contained in:
Shea Levy
2016-03-11 18:14:58 -05:00
parent 995f3b21db
commit 4392d3e21d
12 changed files with 168 additions and 4 deletions
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6
src/script/hydra-notify
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@@ -5,6 +5,7 @@ use utf8;
use Hydra::Plugin;
use Hydra::Helper::Nix;
use Hydra::Helper::PluginHooks;
use Hydra::Helper::AddBuilds;
STDERR->autoflush(1);
binmode STDERR, ":encoding(utf8)";
@@ -21,6 +22,11 @@ my $buildId = shift @ARGV or die;
my $build = $db->resultset('Builds')->find($buildId)
or die "build $buildId does not exist\n";
if ($cmd eq "build-finished") {
my $project = $build->project;
my $jobset = $build->jobset;
if (length($project->declfile) && $jobset->name eq ".jobsets" && $build->iscurrent) {
handleDeclarativeJobsetBuild($db, $project, $build);
}
my @dependents;
foreach my $id (@ARGV) {
my $dep = $db->resultset('Builds')->find($id)