Implement Cobra CLI tooling, Viper config tooling (#336)

* start pulling out + replacing urfave and config

* replace many many instances of config

* move more stuff => viper

* properly remove urfave

* move some flags to root command

* add testrig commands to root

* alias config file keys

* start adding cli parsing tests

* reorder viper init

* remove config path alias

* fmt

* change config file keys to non-nested

* we're more or less in business now

* tidy up the common func

* go fmt

* get tests passing again

* add note about the cliparsing tests

* reorganize

* update docs with changes

* structure cmd dir better

* rename + move some files around

* fix dangling comma

1 files changed, 87 insertions, 0 deletions

diff --git a/internal/config/defaults.go b/internal/config/defaults.go
new file mode 100644
index 000000000..01eef8c8c
--- /dev/null
+++ b/internal/config/defaults.go
@@ -0,0 +1,87 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package config
+
+import "github.com/coreos/go-oidc/v3/oidc"
+
+// Defaults returns a populated Values struct with most of the values set to reasonable defaults.
+// Note that if you use this, you still need to set Host and, if desired, ConfigPath.
+var Defaults = Values{
+	LogLevel:        "info",
+	ApplicationName: "gotosocial",
+	ConfigPath:      "",
+	Host:            "",
+	AccountDomain:   "",
+	Protocol:        "https",
+	BindAddress:     "0.0.0.0",
+	Port:            8080,
+	TrustedProxies:  []string{"127.0.0.1/32"}, // localhost
+
+	DbType:      "postgres",
+	DbAddress:   "localhost",
+	DbPort:      5432,
+	DbUser:      "postgres",
+	DbPassword:  "postgres",
+	DbDatabase:  "postgres",
+	DbTLSMode:   "disable",
+	DbTLSCACert: "",
+
+	WebTemplateBaseDir: "./web/template/",
+	WebAssetBaseDir:    "./web/assets/",
+
+	AccountsRegistrationOpen: true,
+	AccountsApprovalRequired: true,
+	AccountsReasonRequired:   true,
+
+	MediaImageMaxSize:        2097152,  // 2mb
+	MediaVideoMaxSize:        10485760, // 10mb
+	MediaDescriptionMinChars: 0,
+	MediaDescriptionMaxChars: 500,
+
+	StorageBackend:       "local",
+	StorageBasePath:      "/gotosocial/storage",
+	StorageServeProtocol: "https",
+	StorageServeHost:     "localhost",
+	StorageServeBasePath: "/fileserver",
+
+	StatusesMaxChars:           5000,
+	StatusesCWMaxChars:         100,
+	StatusesPollMaxOptions:     6,
+	StatusesPollOptionMaxChars: 50,
+	StatusesMediaMaxFiles:      6,
+
+	LetsEncryptEnabled:      true,
+	LetsEncryptPort:         80,
+	LetsEncryptCertDir:      "/gotosocial/storage/certs",
+	LetsEncryptEmailAddress: "",
+
+	OIDCEnabled:          false,
+	OIDCIdpName:          "",
+	OIDCSkipVerification: false,
+	OIDCIssuer:           "",
+	OIDCClientID:         "",
+	OIDCClientSecret:     "",
+	OIDCScopes:           []string{oidc.ScopeOpenID, "profile", "email", "groups"},
+
+	SMTPHost:     "",
+	SMTPPort:     0,
+	SMTPUsername: "",
+	SMTPPassword: "",
+	SMTPFrom:     "GoToSocial",
+}