add "weed scaffold" command

1 files changed, 138 insertions, 0 deletions

diff --git a/weed/command/scaffold.go b/weed/command/scaffold.go
new file mode 100644
index 000000000..64aa59fb8
--- /dev/null
+++ b/weed/command/scaffold.go
@@ -0,0 +1,138 @@
+package command
+
+import (
+	"io/ioutil"
+	"path/filepath"
+)
+
+func init() {
+	cmdScaffold.Run = runScaffold // break init cycle
+}
+
+var cmdScaffold = &Command{
+	UsageLine: "scaffold [filer]",
+	Short:     "generate basic configuration files",
+	Long: `Generate filer.toml with all possible configurations for you to customize.
+
+  `,
+}
+
+var (
+	outputPath = cmdScaffold.Flag.String("output", "", "if not empty, save the configuration file to this directory")
+	config     = cmdScaffold.Flag.String("config", "filer", "the configuration file to generate")
+)
+
+func runScaffold(cmd *Command, args []string) bool {
+
+	content := ""
+	switch *config {
+	case "filer":
+		content = FILER_TOML_EXAMPLE
+	}
+	if content == "" {
+		println("need a valid -config option")
+		return false
+	}
+
+	if *outputPath != "" {
+		ioutil.WriteFile(filepath.Join(*outputPath, *config+".toml"), []byte(content), 0x755)
+	} else {
+		println(content)
+	}
+	return true
+}
+
+const (
+	FILER_TOML_EXAMPLE = `
+# A sample TOML config file for SeaweedFS filer store
+
+[memory]
+# local in memory, mostly for testing purpose
+enabled = false
+
+[leveldb]
+# local on disk, mostly for simple single-machine setup, fairly scalable
+enabled = false
+dir = "."					# directory to store level db files
+
+####################################################
+# multiple filers on shared storage, fairly scalable
+####################################################
+
+[mysql]
+# CREATE TABLE IF NOT EXISTS filemeta (
+#   dirhash     BIGINT        COMMENT 'first 64 bits of MD5 hash value of directory field',
+#   name        VARCHAR(1000) COMMENT 'directory or file name',
+#   directory   VARCHAR(4096) COMMENT 'full path to parent directory',
+#   meta        BLOB,
+#   PRIMARY KEY (dirhash, name)
+# ) DEFAULT CHARSET=utf8;
+enabled = true
+hostname = "localhost"
+port = 3306
+username = "root"
+password = ""
+database = ""              # create or use an existing database
+connection_max_idle = 2
+connection_max_open = 100
+
+[postgres]
+# CREATE TABLE IF NOT EXISTS filemeta (
+#   dirhash     BIGINT,
+#   name        VARCHAR(1000),
+#   directory   VARCHAR(4096),
+#   meta        bytea,
+#   PRIMARY KEY (dirhash, name)
+# );
+enabled = false
+hostname = "localhost"
+port = 5432
+username = "postgres"
+password = ""
+database = ""              # create or use an existing database
+sslmode = "disable"
+connection_max_idle = 100
+connection_max_open = 100
+
+[cassandra]
+# CREATE TABLE filemeta (
+#    directory varchar,
+#    name varchar,
+#    meta blob,
+#    PRIMARY KEY (directory, name)
+# ) WITH CLUSTERING ORDER BY (name ASC);
+enabled = false
+keyspace="seaweedfs"
+hosts=[
+	"localhost:9042",
+]
+
+[redis]
+enabled = true
+address  = "localhost:6379"
+password = ""
+db = 0
+
+[redis_cluster]
+enabled = false
+addresses = [
+    "localhost:6379",
+]
+
+
+####################################################
+# notification
+# sends filer updates for each file to an external message queue
+####################################################
+[notification.log]
+enabled = true
+
+[notification.kafka]
+enabled = false
+hosts = [
+  "localhost:9092"
+]
+topic = "seaweedfs_filer"
+
+`
+)