Initial commit

.gitignore

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+
+.*

LICENSE

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+Copyright Author name here (c) 2019
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Author name here nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

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+# atrade-monitor

Setup.hs

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+import Distribution.Simple
+main = defaultMain

atrade-monitor.cabal

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+-- This file has been generated from package.yaml by hpack version 0.28.2.
+--
+-- see: https://github.com/sol/hpack
+--
+-- hash: 7b4bb6b075db02fa61f90c38b7c14b013926cce4ef1591667dd98ba4fdc483c1
+
+name:           atrade-monitor
+version:        0.1.0.0
+category:       Web
+homepage:       https://github.com/githubuser/atrade-monitor#readme
+author:         Denis Tereshkin
+maintainer:     denis@kasan.ws
+copyright:      2019 Denis Tereshkin
+license:        BSD3
+license-file:   LICENSE
+build-type:     Simple
+cabal-version:  >= 1.10
+extra-source-files:
+    README.md
+
+executable atrade-monitor
+  main-is: Main.hs
+  other-modules:
+      Paths_atrade_monitor
+  hs-source-dirs:
+      src
+  default-extensions: OverloadedStrings
+  build-depends:
+      aeson
+    , base >=4.7 && <5
+    , process
+    , safe
+    , text
+    , unordered-containers
+  default-language: Haskell2010

package.yaml

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+name:                atrade-monitor
+version:             0.1.0.0
+#synopsis:
+#description:
+homepage:            https://github.com/githubuser/atrade-monitor#readme
+license:             BSD3
+author:              Denis Tereshkin
+maintainer:          denis@kasan.ws
+copyright:           2019 Denis Tereshkin
+category:            Web
+extra-source-files:
+- README.md
+
+dependencies:
+  - base >= 4.7 && < 5
+  - process
+  - aeson
+  - unordered-containers
+  - text
+  - safe
+
+default-extensions:
+  - OverloadedStrings
+
+executables:
+  atrade-monitor:
+    source-dirs:      src
+    main:             Main.hs

src/Main.hs

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+module Main where
+
+import           Control.Concurrent
+import           Control.Monad
+import           Data.Aeson
+import qualified Data.HashMap.Strict as HM
+import qualified Data.Text           as T
+import           Safe
+import           System.Environment
+import           System.Process
+
+newtype ArgsMap = ArgsMap { unArgsMap :: HM.HashMap T.Text T.Text }
+  deriving (Show, Eq)
+
+data Config = Config
+  {
+    cGlobalLog   :: FilePath,
+    cDelay       :: Int,
+    cGlobalArgs  :: ArgsMap,
+    cExecutables :: [ExecConfig]
+  } deriving (Show, Eq)
+
+data ExecConfig = ExecConfig
+  {
+    cExecutablePath :: FilePath,
+    cLogPath        :: FilePath,
+    cArgs           :: ArgsMap
+  } deriving (Show, Eq)
+
+instance FromJSON ArgsMap where
+  parseJSON = withObject "ArgsMap" $ \o ->
+    case HM.traverseWithKey tryConvert o of
+      Just converted -> return $ ArgsMap converted
+      Nothing        -> fail "Unable to parse argsmap"
+    where
+      tryConvert k (Object _) = Nothing
+      tryConvert k (Array _)  = Nothing
+      tryConvert k (String t) = Just t
+      tryConvert k (Number n) = Just (T.pack $ show n)
+      tryConvert k (Bool b)   = Just (T.pack $ show b)
+      tryConvert k Null       = Just T.empty
+
+
+instance FromJSON ExecConfig where
+  parseJSON = withObject "ExecConfig" $ \o ->
+    ExecConfig <$>
+    o .: "path" <*>
+    o .: "log" <*>
+    o .: "config"
+
+instance FromJSON Config where
+  parseJSON = withObject "Config" $ \o ->
+    Config <$>
+    o .: "global_log" <*>
+    o .: "delay" <*>
+    o .: "global_args" <*>
+    o .: "executables"
+
+main :: IO ()
+main = do
+  args <- getArgs
+  case headMay args of
+    Just configPath -> do
+      eResult <- eitherDecodeFileStrict' configPath
+      case eResult of
+        Right config -> runWithConfig config
+        Left err     -> print $ "Can't read config:" ++ err
+    Nothing -> print $ "Usage: atrade-monitor <config-path>"
+
+runWithConfig :: Config -> IO ()
+runWithConfig config = do
+  threadIds <- forM (zip [0..] (cExecutables config)) $ \(i, execcfg) -> do
+    threadDelay (1000000 * i * cDelay config)
+    (mbStdIn, mbStdOut, mbStdErr, ph) <- createProcess $ proc (cExecutablePath execcfg) (makeArgs (cGlobalArgs config) (cArgs execcfg))
+    undefined
+  forever $ threadDelay 1000000
+
+
+  where
+    makeArgs globalArgs localArgs = fmap makeArg (HM.toList . unArgsMap $ globalArgs) ++ fmap makeArg (HM.toList . unArgsMap $ localArgs)
+    makeArg (k, v) = T.unpack $ if v /= "" then "--" <> k <> "=" <> v else "--" <> k
+
+
+
+

stack.yaml

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+# This file was automatically generated by 'stack init'
+#
+# Some commonly used options have been documented as comments in this file.
+# For advanced use and comprehensive documentation of the format, please see:
+# https://docs.haskellstack.org/en/stable/yaml_configuration/
+
+# Resolver to choose a 'specific' stackage snapshot or a compiler version.
+# A snapshot resolver dictates the compiler version and the set of packages
+# to be used for project dependencies. For example:
+#
+# resolver: lts-3.5
+# resolver: nightly-2015-09-21
+# resolver: ghc-7.10.2
+# resolver: ghcjs-0.1.0_ghc-7.10.2
+#
+# The location of a snapshot can be provided as a file or url. Stack assumes
+# a snapshot provided as a file might change, whereas a url resource does not.
+#
+# resolver: ./custom-snapshot.yaml
+# resolver: https://example.com/snapshots/2018-01-01.yaml
+resolver: lts-12.9
+
+# User packages to be built.
+# Various formats can be used as shown in the example below.
+#
+# packages:
+# - some-directory
+# - https://example.com/foo/bar/baz-0.0.2.tar.gz
+# - location:
+#    git: https://github.com/commercialhaskell/stack.git
+#    commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+# - location: https://github.com/commercialhaskell/stack/commit/e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#  subdirs:
+#  - auto-update
+#  - wai
+packages:
+- .
+# Dependency packages to be pulled from upstream that are not in the resolver
+# using the same syntax as the packages field.
+# (e.g., acme-missiles-0.3)
+# extra-deps: []
+
+# Override default flag values for local packages and extra-deps
+# flags: {}
+
+# Extra package databases containing global packages
+# extra-package-dbs: []
+
+# Control whether we use the GHC we find on the path
+# system-ghc: true
+#
+# Require a specific version of stack, using version ranges
+# require-stack-version: -any # Default
+# require-stack-version: ">=1.7"
+#
+# Override the architecture used by stack, especially useful on Windows
+# arch: i386
+# arch: x86_64
+#
+# Extra directories used by stack for building
+# extra-include-dirs: [/path/to/dir]
+# extra-lib-dirs: [/path/to/dir]
+#
+# Allow a newer minor version of GHC than the snapshot specifies
+# compiler-check: newer-minor