/
init.go
81 lines (69 loc) · 2.45 KB
/
init.go
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//
// Copyright © 2017-2019 Solus Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Package core provides the internal Ferry implementation.
//
// This portion of ferryd is responsible for the management of the repositories,
// and receives packages from the builders.
package core
import (
"os"
"path/filepath"
"github.com/getsolus/ferryd/src/libdb"
)
const (
// DatabasePathComponent is the suffix applied to a working directory
// for the database file itself.
DatabasePathComponent = "ferry_db"
// JobDbPathComponent points ot the jobs database
JobDbPathComponent = "ferry_db_jobs"
// IncomingPathComponent is the base for all per-repo incoming directories
IncomingPathComponent = "incoming"
// Version of the ferry client library
Version = "0.0.0"
)
// The Context is shared between all of the components of ferryd to provide
// working directories and such.
type Context struct {
BaseDir string // Base directory of operations
DbPath string // Path to the main database file
JobDbPath string // Path to the job database file
}
// NewContext will construct a context from the given base directory for
// all file path functions
func NewContext(root string) (*Context, error) {
// Ensure root to context exists
if _, err := os.Stat(root); os.IsNotExist(err) {
return nil, err
}
// Start with the absolute filepath and then join anything there after
basedir, err := filepath.Abs(root)
if err != nil {
return nil, err
}
return &Context{
BaseDir: basedir,
DbPath: filepath.Join(basedir, DatabasePathComponent),
JobDbPath: filepath.Join(basedir, JobDbPathComponent),
}, nil
}
// A Component of ferryd has special considerations to bootstrap itself
// during ferryd start, and clean up during ferryd shutdown.
type Component interface {
// Initialise the component on the initial transaction
Init(ctx *Context, db libdb.Database) error
// Close will request the component stops any ongoing operations and cleanup
Close()
}