Create project

.gitignore

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+.stack-work/
+profold.cabal
+*~

CHANGELOG.md

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+# Changelog for profold
+
+## Upcoming
+* create project

LICENSE

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+MIT License
+
+Copyright (c) 2020 Garmelon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# profold

Setup.hs

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+import Distribution.Simple
+main = defaultMain

app/Main.hs

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+module Main where
+
+main :: IO ()
+main = putStrLn "Nothing to see here"

package.yaml

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+name:                profold
+version:             0.1.0.0
+license:             MIT
+author:              "Garmelon <joscha@plugh.de>"
+copyright:           "2020 Garmelon"
+
+synopsis:            A TUI viewer for GHC .prof files that can fold/unfold sections
+description:         Please see the README on GitHub at <https://github.com/Garmelon/profold#readme>
+github:              "Garmelon/profold"
+
+extra-source-files:
+- README.md
+- CHANGELOG.md
+
+dependencies:
+- base >= 4.7 && < 5
+- containers
+- megaparsec
+- text
+- vector
+
+library:
+  source-dirs: src
+
+executables:
+  profold:
+    main:                Main.hs
+    source-dirs:         app
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N
+    dependencies:
+    - profold

src/Profold/LineTree.hs

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+module Profold.LineTree
+  ( LineNode(..)
+  , Path
+  , onlyUnfolded
+  , flatten
+  , modify
+  , toggleFold
+  ) where
+
+import qualified Data.Text    as T
+import qualified Data.Vector  as V
+
+import           Profold.Util
+
+data LineNode = LineNode
+  { lineText     :: T.Text
+  , lineChildren :: V.Vector LineNode
+  , lineFolded   :: Bool
+  } deriving (Show)
+
+type Path = [Int]
+
+onlyUnfolded :: LineNode -> LineNode
+onlyUnfolded ln
+  | lineFolded ln = ln{lineChildren = V.empty}
+  | otherwise     = ln
+
+flatten :: LineNode -> V.Vector (Path, T.Text)
+flatten ln =
+  V.cons ([], lineText ln) $
+  V.imap (\i (is, t) -> (i : is, t)) $
+  V.concatMap flatten $
+  lineChildren ln
+
+modify :: (LineNode -> LineNode) -> Path -> LineNode -> LineNode
+modify f [] ln = f ln
+modify f (i:is) ln = ln{lineChildren = modifyAtIndex i (modify f is) $ lineChildren ln}
+
+toggleFold :: Path -> LineNode -> LineNode
+toggleFold = modify $ \ln -> ln{lineFolded = not $ lineFolded ln}

src/Profold/Util.hs

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+module Profold.Util
+  ( modifyAtIndex
+  ) where
+
+import qualified Data.Vector as V
+
+modifyAtIndex :: Int -> (a -> a) -> V.Vector a -> V.Vector a
+-- Yes, this function looks ugly, but it's short enough that I don't care.
+modifyAtIndex i f v = maybe v (\a -> v V.// [(i, f a)]) (v V.!? i)

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
+#
+# 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-15.1
+
+# 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
+#   subdirs:
+#   - auto-update
+#   - wai
+packages:
+- .
+# Dependency packages to be pulled from upstream that are not in the resolver.
+# These entries can reference officially published versions as well as
+# forks / in-progress versions pinned to a git hash. For example:
+#
+# extra-deps:
+# - acme-missiles-0.3
+# - git: https://github.com/commercialhaskell/stack.git
+#   commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#
+# 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: ">=2.1"
+#
+# 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

stack.yaml.lock

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+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    size: 489011
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/15/1.yaml
+    sha256: d4ecc42b7125d68e4c3c036a08046ad0cd02ae0d9efbe3af2223a00ff8cc16f3
+  original: lts-15.1