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GenChangelogs.hs
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GenChangelogs.hs
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#!/usr/bin/env cabal
{- cabal:
build-depends: base, process, html-conduit, http-conduit, xml-conduit, text, containers
-}
{-# LANGUAGE OverloadedStrings #-}
import Control.Monad
import Data.Char
import Data.List
import qualified Data.Map.Lazy as M
import Network.HTTP.Simple
import System.Process
import qualified Data.Text as T
import qualified Data.Text.IO as T
import Text.HTML.DOM
import Text.XML.Cursor
import Text.XML (Element(..))
main = do
callCommand "git fetch --tags"
tags <- filter (isPrefixOf "0.") . lines <$>
readProcess "git" ["tag", "--list", "--sort=v:refname"] ""
messages <- lines <$> readProcess "git" [ "log"
, last tags <> "..HEAD"
, "--merges"
, "--reverse"
, "--pretty=format:\"%s\""
] ""
let -- try to get "1334" out of "merge PR #1334"
prNums = map (filter isDigit) $
map head $
filter (not . null) $
map (filter (isPrefixOf "#") . words) messages
prUrls = map ("https://github.com/haskell/haskell-ide-engine/pull/" <>) prNums
(flip mapM_) prUrls $ \url -> do
body <- getResponseBody <$> httpLBS (parseRequest_ url)
let cursor = fromDocument (parseLBS body)
titles = (descendant >=> attributeIs "class" "js-issue-title" >=> child >=> content) cursor
title = T.unpack $ T.strip $ head titles
checkAuthor :: Element -> Bool
checkAuthor e = maybe False (T.isInfixOf "author") (M.lookup "class" (elementAttributes e))
authors = (descendant >=> checkElement checkAuthor >=> child >=> content) cursor
author = T.unpack $ T.strip $ authors !! 2 -- second author is the pr author
-- generate markdown
putStrLn $ "- [" <> title <> "](" <> url <> ") (@" <> author <> ")"