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// file : mod/mod-ci-github.hxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#ifndef MOD_MOD_CI_GITHUB_HXX
#define MOD_MOD_CI_GITHUB_HXX
#include <libbrep/types.hxx>
#include <libbrep/utility.hxx>
#include <mod/module.hxx>
#include <mod/module-options.hxx>
#include <mod/ci-common.hxx>
#include <mod/tenant-service.hxx>
namespace butl
{
namespace json
{
class parser;
}
}
namespace brep
{
// GitHub request/response types.
//
// Note that the GitHub REST and GraphQL APIs use different ID types and
// values. In the REST API they are usually integers (but sometimes
// strings!) whereas in GraphQL they are always strings (note:
// base64-encoded and opaque, not just the REST ID value as a string).
//
// In both APIs the ID field is called `id`, but REST responses and webhook
// events also contain the corresponding GraphQL object's ID in the
// `node_id` field.
//
// In the structures below we always use the RESP API/webhook names for ID
// fields. I.e., `id` always refers to the REST/webhook ID, and `node_id`
// always refers to the GraphQL ID.
//
// Note that having the below types directly in brep causes clashes (e.g.,
// for the repository name).
//
namespace gh
{
namespace json = butl::json;
// The "check_suite" object within a check_suite webhook event request.
//
struct check_suite
{
string node_id;
string head_branch;
string head_sha;
string before;
string after;
explicit
check_suite (json::parser&);
check_suite () = default;
};
struct check_run
{
string node_id;
string name;
string status;
explicit
check_run (json::parser&);
check_run () = default;
};
struct repository
{
string node_id;
string name;
string full_name;
string default_branch;
string clone_url;
explicit
repository (json::parser&);
repository () = default;
};
struct installation
{
uint64_t id; // Note: used for installation access token (REST API).
explicit
installation (json::parser&);
installation () = default;
};
// The check_suite webhook event request.
//
struct check_suite_event
{
string action;
gh::check_suite check_suite;
gh::repository repository;
gh::installation installation;
explicit
check_suite_event (json::parser&);
check_suite_event () = default;
};
struct installation_access_token
{
string token;
timestamp expires_at;
explicit
installation_access_token (json::parser&);
installation_access_token () = default;
};
ostream&
operator<< (ostream&, const check_suite&);
ostream&
operator<< (ostream&, const check_run&);
ostream&
operator<< (ostream&, const repository&);
ostream&
operator<< (ostream&, const installation&);
ostream&
operator<< (ostream&, const check_suite_event&);
ostream&
operator<< (ostream&, const installation_access_token&);
}
class ci_github: public handler,
private ci_start,
public tenant_service_build_queued,
public tenant_service_build_building,
public tenant_service_build_built
{
public:
explicit
ci_github (tenant_service_map&);
// Create a shallow copy (handling instance) if initialized and a deep
// copy (context exemplar) otherwise.
//
explicit
ci_github (const ci_github&, tenant_service_map&);
virtual bool
handle (request&, response&);
virtual const cli::options&
cli_options () const {return options::ci_github::description ();}
virtual function<optional<string> (const tenant_service&)>
build_queued (const tenant_service&,
const vector<build>&,
optional<build_state> initial_state,
const fail_mark<server_error>& fail,
const basic_mark& error,
const basic_mark& warn,
const basic_mark& trace) const override;
virtual function<optional<string> (const tenant_service&)>
build_building (const tenant_service&, const build&,
const fail_mark<server_error>& fail,
const basic_mark& error,
const basic_mark& warn,
const basic_mark& trace) const override;
virtual function<optional<string> (const tenant_service&)>
build_built (const tenant_service&, const build&,
const fail_mark<server_error>& fail,
const basic_mark& error,
const basic_mark& warn,
const basic_mark& trace) const override;
private:
virtual void
init (cli::scanner&);
// Handle the check_suite event `requested` and `rerequested` actions.
//
bool
handle_check_suite_request (gh::check_suite_event);
string
generate_jwt () const;
// Authenticate to GitHub as an app installation.
//
gh::installation_access_token
obtain_installation_access_token (uint64_t install_id, string jwt) const;
private:
shared_ptr<options::ci_github> options_;
tenant_service_map& tenant_service_map_;
};
}
#endif // MOD_MOD_CI_GITHUB_HXX
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