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, 90 insertions, 0 deletions

diff --git a/internal/config/values.go b/internal/config/values.go
new file mode 100644
index 000000000..387f934d8
--- /dev/null
+++ b/internal/config/values.go
@@ -0,0 +1,90 @@
+/*
+   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
+
+// Values contains contains the type of each configuration value.
+type Values struct {
+	LogLevel        string
+	ApplicationName string
+	ConfigPath      string
+	Host            string
+	AccountDomain   string
+	Protocol        string
+	BindAddress     string
+	Port            int
+	TrustedProxies  []string
+	SoftwareVersion string
+
+	DbType      string
+	DbAddress   string
+	DbPort      int
+	DbUser      string
+	DbPassword  string
+	DbDatabase  string
+	DbTLSMode   string
+	DbTLSCACert string
+
+	WebTemplateBaseDir string
+	WebAssetBaseDir    string
+
+	AccountsRegistrationOpen bool
+	AccountsApprovalRequired bool
+	AccountsReasonRequired   bool
+
+	MediaImageMaxSize        int
+	MediaVideoMaxSize        int
+	MediaDescriptionMinChars int
+	MediaDescriptionMaxChars int
+
+	StorageBackend       string
+	StorageBasePath      string
+	StorageServeProtocol string
+	StorageServeHost     string
+	StorageServeBasePath string
+
+	StatusesMaxChars           int
+	StatusesCWMaxChars         int
+	StatusesPollMaxOptions     int
+	StatusesPollOptionMaxChars int
+	StatusesMediaMaxFiles      int
+
+	LetsEncryptEnabled      bool
+	LetsEncryptCertDir      string
+	LetsEncryptEmailAddress string
+	LetsEncryptPort         int
+
+	OIDCEnabled          bool
+	OIDCIdpName          string
+	OIDCSkipVerification bool
+	OIDCIssuer           string
+	OIDCClientID         string
+	OIDCClientSecret     string
+	OIDCScopes           []string
+
+	SMTPHost     string
+	SMTPPort     int
+	SMTPUsername string
+	SMTPPassword string
+	SMTPFrom     string
+
+	AdminAccountUsername string
+	AdminAccountEmail    string
+	AdminAccountPassword string
+	AdminTransPath       string
+}