lib/cli.nim
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import
parseopt2,
parsecfg,
streams,
strutils
import
logger,
types,
utils
const cfgfile = "litestore.nimble".slurp
const favicon = "admin/favicon.ico".slurp
var
file*, address*, version*, appname*: string
port*: int
operation = opRun
directory:string = nil
readonly = false
logLevel = "info"
mount = false
reset = false
var f = newStringStream(cfgfile)
if f != nil:
var p: CfgParser
open(p, f, "litestore.nimble")
while true:
var e = next(p)
case e.kind
of cfgEof:
break
of cfgKeyValuePair:
case e.key:
of "version":
version = e.value
of "appame":
appname = e.value
of "port":
port = e.value.parseInt
of "address":
address = e.value
of "file":
file = e.value
else:
discard
of cfgError:
fail(1, "Configuration error.")
else:
discard
close(p)
else:
fail(2, "Cannot process configuration file.")
let
usage* = appname & " v" & version & " - Lightweight REST Document Store" & """
(c) 2015 Fabio Cevasco
Usage:
LS [command] [option1 option2 ...]
Commands:
run Starts LiteStore server.
delete Delete a previously-imported specified directory (requires -d).
import Import the specified directory into the datastore (requires -d).
export Export the previously-imported specified directory to the current directory (requires -d).
optimize Optimize search indexes.
vacuum Vacuum datastore.
Options:
-a, --address Specify server address (default: 127.0.0.1).
-d, --directory Specify a directory to import, export, delete, or mount.
-h, --help Display this message.
-l, --log Specify the log level: debug, info, warn, error, none (default: info)
-m, --mount Mirror database changes to the specified directory on the filesystem.
-p, --port Specify server port number (default: 9500).
-r, --readonly Allow only data retrieval operations.
-s, --store Specify a datastore file (default: data.db)
-v, --version Display the program version.
"""
for kind, key, val in getOpt():
case kind:
of cmdArgument:
case key:
of "run":
operation = opRun
of "import":
operation = opImport
of "export":
operation = opExport
of "delete":
operation = opDelete
of "optimize":
operation = opOptimize
of "vacuum":
operation = opVacuum
else:
discard
of cmdLongOption, cmdShortOption:
case key:
of "address", "a":
if val == "":
fail(100, "Address not specified.")
address = val
of "port", "p":
if val == "":
fail(101, "Port not specified.")
port = val.parseInt
of "store", "s":
file = val
of "log", "l":
if val == "":
fail(102, "Log level not specified.")
case val:
of "info":
LOG.level = lvInfo
of "warn":
LOG.level = lvWarn
of "debug":
LOG.level = lvDebug
of "error":
LOG.level = lvError
of "none":
LOG.level = lvNone
else:
fail(103, "Invalid log level '$1'" % val)
loglevel = val
of "directory", "d":
if val == "":
fail(104, "Directory not specified.")
directory = val
of "mount", "m":
mount = true
of "version", "v":
echo version
quit(0)
of "help", "h":
echo usage
quit(0)
of "readonly", "r":
readonly = true
else:
discard
else:
discard
# Validation
if directory == nil and (operation in [opDelete, opImport, opExport] or mount):
fail(105, "Directory option not specified.")
# Initialize LiteStore
var LS* {.threadvar.}: LiteStore
LS.port = port
LS.address = address
LS.operation = operation
LS.file = file
LS.directory = directory
LS.appversion = version
LS.readonly = readonly
LS.appname = appname
LS.favicon = favicon
LS.loglevel = loglevel
LS.mount = mount
LS.reset = reset
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