Reworking configuration loading and overriding

.bra.toml

 [run]
 init_cmds = [
-  ["go", "build", "-o", "./bin/grafana"],
-	["./bin/grafana", "web"]
+  ["go", "build", "-o", "./bin/grafana-server"],
+	["./bin/grafana-server"]
 ]
 watch_all = true
 watch_dirs = [
@@ -12,6 +12,6 @@ watch_dirs = [
 watch_exts = [".go", ".ini"]
 build_delay = 1500
 cmds = [
-  ["go", "build", "-o", "./bin/grafana"],
-	["./bin/grafana", "web"]
+  ["go", "build", "-o", "./bin/grafana-server"],
+	["./bin/grafana-server"]
 ]

build.go

@@ -209,7 +209,7 @@ func test(pkg string) {
 }
 
 func build(pkg string, tags []string) {
-	binary := "./bin/grafana"
+	binary := "./bin/grafana-server"
 	if goos == "windows" {
 		binary += ".exe"
 	}

conf/defaults.ini

 app_name = Grafana
 app_mode = production
 
+[paths]
 ; data_path
 ; where rendered png images are temporarily stored
 ; file based sessions are stored here (if file based session is configured below)
 ; the database is stored here if sqlite3 database is used
-; can be overriden from command line --data-path
-; defaults to `data` path relative to working directory
-data_path =
+data = data
+logs = data/log
 
 [server]
 ; protocol (http or https)
@@ -21,7 +21,7 @@ domain = localhost
 ; the full public facing url
 root_url = %(protocol)s://%(domain)s:%(http_port)s/
 router_logging = false
-; the path relative to the binary where the static (html/js/css) files are placed
+; the path relative home path where frontend assets are located
 static_root_path = public
 ; enable gzip
 enable_gzip = false
@@ -47,7 +47,7 @@ user = root
 password =
 ; For "postgres" only, either "disable", "require" or "verify-full"
 ssl_mode = disable
-; For "sqlite3" only, path relative to data_dir setting
+; For "sqlite3" only, path relative to data_path setting
 path = grafana.db
 
 [session]
@@ -55,7 +55,7 @@ path = grafana.db
 provider = file
 ; Provider config options
 ; memory: not have any config yet
-; file: session dir path, is relative to grafana data_dir
+; file: session dir path, is relative to grafana data_path
 ; redis: config like redis server addr, poolSize, password, e.g. `127.0.0.1:6379,100,grafana`
 ; mysql: go-sql-driver/mysql dsn config string, e.g. `user:password@tcp(127.0.0.1)/database_name`
 provider_config = sessions
@@ -117,11 +117,6 @@ token_url = https://accounts.google.com/o/oauth2/token
 ; allowed_domains = mycompany.com othercompany.com
 
 [log]
-; root_path
-; for deb or rpm package installs this is specified via command line
-; change it in /etc/default/grafana, it defaults to /var/log/grafana
-; for non package installs (running manually) defaults to `log` dir under data_dir
-root_path =
 ; Either "console", "file", default is "console"
 ; Use comma to separate multiple modes, e.g. "console, file"
 mode = console, file

main.go

@@ -64,15 +64,14 @@ func main() {
 }
 
 func initRuntime() {
-	setting.NewConfigContext(&setting.CommandLineArgs{})
+	setting.NewConfigContext(&setting.CommandLineArgs{
+		Config: *configFile,
+		Args:   flag.Args(),
+	})
 
 	log.Info("Starting Grafana")
 	log.Info("Version: %v, Commit: %v, Build date: %v", setting.BuildVersion, setting.BuildCommit, time.Unix(setting.BuildStamp, 0))
-	setting.LogLoadedConfigFiles()
-
-	log.Info("Working Path: %s", setting.WorkPath)
-	log.Info("Data Path: %s", setting.DataPath)
-	log.Info("Log Path: %s", setting.LogRootPath)
+	setting.LogConfigurationInfo()
 
 	sqlstore.NewEngine()
 	sqlstore.EnsureAdminUser()

pkg/services/sqlstore/sqlstore.go

@@ -86,7 +86,7 @@ func SetEngine(engine *xorm.Engine, enableLog bool) (err error) {
 	}
 
 	if enableLog {
-		logPath := path.Join(setting.LogRootPath, "xorm.log")
+		logPath := path.Join(setting.LogsPath, "xorm.log")
 		os.MkdirAll(path.Dir(logPath), os.ModePerm)
 
 		f, err := os.Create(logPath)

pkg/setting/setting_test.go

@@ -10,12 +10,12 @@ import (
 
 func TestLoadingSettings(t *testing.T) {
 
-	WorkDir, _ = filepath.Abs("../../")
+	HomePath, _ = filepath.Abs("../../")
 
 	Convey("Testing loading settings from ini file", t, func() {
 
 		Convey("Given the default ini files", func() {
-			NewConfigContext("")
+			NewConfigContext(&CommandLineArgs{})
 
 			So(AppName, ShouldEqual, "Grafana")
 			So(AdminUser, ShouldEqual, "admin")
@@ -23,9 +23,63 @@ func TestLoadingSettings(t *testing.T) {
 
 		Convey("Should be able to override via environment variables", func() {
 			os.Setenv("GF_SECURITY_ADMIN_USER", "superduper")
-			NewConfigContext("")
+			NewConfigContext(&CommandLineArgs{})
 
 			So(AdminUser, ShouldEqual, "superduper")
+			So(DataPath, ShouldEqual, filepath.Join(HomePath, "data"))
+			So(LogsPath, ShouldEqual, filepath.Join(DataPath, "log"))
+		})
+
+		Convey("Should get property map from command line args array", func() {
+			props := getCommandLineProperties([]string{"cfg:test=value", "cfg:map.test=1"})
+
+			So(len(props), ShouldEqual, 2)
+			So(props["test"], ShouldEqual, "value")
+			So(props["map.test"], ShouldEqual, "1")
+		})
+
+		Convey("Should be able to override via command line", func() {
+			NewConfigContext(&CommandLineArgs{
+				Args: []string{"cfg:paths.data=/tmp/data", "cfg:paths.logs=/tmp/logs"},
+			})
+
+			So(DataPath, ShouldEqual, "/tmp/data")
+			So(LogsPath, ShouldEqual, "/tmp/logs")
+		})
+
+		Convey("Should be able to override defaults via command line", func() {
+			NewConfigContext(&CommandLineArgs{
+				Args: []string{"cfg:default.paths.data=/tmp/data"},
+			})
+
+			So(DataPath, ShouldEqual, "/tmp/data")
+		})
+
+		Convey("Defaults can be overriden in specified config file", func() {
+			NewConfigContext(&CommandLineArgs{
+				Args:   []string{"cfg:default.paths.data=/tmp/data"},
+				Config: filepath.Join(HomePath, "tests/config-files/override.ini"),
+			})
+
+			So(DataPath, ShouldEqual, "/tmp/override")
+		})
+
+		Convey("Command line overrides specified config file", func() {
+			NewConfigContext(&CommandLineArgs{
+				Args:   []string{"cfg:paths.data=/tmp/data"},
+				Config: filepath.Join(HomePath, "tests/config-files/override.ini"),
+			})
+
+			So(DataPath, ShouldEqual, "/tmp/data")
+		})
+
+		Convey("Can use environment variables in config values", func() {
+			os.Setenv("GF_DATA_PATH", "/tmp/env_override")
+			NewConfigContext(&CommandLineArgs{
+				Args: []string{"cfg:paths.data=${GF_DATA_PATH}"},
+			})
+
+			So(DataPath, ShouldEqual, "/tmp/env_override")
 		})
 
 	})

tasks/build_task.js

@@ -55,7 +55,7 @@ module.exports = function(grunt) {
     grunt.config('copy.backend_bin', {
       cwd: 'bin',
       expand: true,
-      src: ['grafana'],
+      src: ['grafana-server'],
       options: { mode: true},
       dest: '<%= tempDir %>/bin/'
     });

tests/config-files/override.ini

+[paths]
+data = /tmp/override