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https://code.tvl.fyi/depot.git:/tools/nixery.git
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bb54c4eb3d
This abstracts over the functionality of Google Cloud Storage and other potential underlying storage backends to make it possible to replace these in Nixery. The GCS backend is not yet reimplemented.
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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// Package config implements structures to store Nixery's configuration at
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// runtime as well as the logic for instantiating this configuration from the
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// environment.
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package config
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import (
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"os"
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log "github.com/sirupsen/logrus"
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)
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func getConfig(key, desc, def string) string {
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value := os.Getenv(key)
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if value == "" && def == "" {
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log.WithFields(log.Fields{
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"option": key,
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"description": desc,
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}).Fatal("missing required configuration envvar")
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} else if value == "" {
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return def
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}
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return value
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}
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// Config holds the Nixery configuration options.
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type Config struct {
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Port string // Port on which to launch HTTP server
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Pkgs PkgSource // Source for Nix package set
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Timeout string // Timeout for a single Nix builder (seconds)
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WebDir string // Directory with static web assets
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PopUrl string // URL to the Nix package popularity count
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}
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func FromEnv() (Config, error) {
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pkgs, err := pkgSourceFromEnv()
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if err != nil {
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return Config{}, err
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}
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return Config{
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Port: getConfig("PORT", "HTTP port", ""),
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Pkgs: pkgs,
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Timeout: getConfig("NIX_TIMEOUT", "Nix builder timeout", "60"),
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WebDir: getConfig("WEB_DIR", "Static web file dir", ""),
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PopUrl: os.Getenv("NIX_POPULARITY_URL"),
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}, nil
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}
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