このサイトを GHC8.2 の stackage resolver でビルドしてみた
このサイトは Haskell の静的サイトジェネレーター Hakyll を使っており，古いパッケージ(Hakyll とは関係ない)を使ってた関係で，かなり古い LTS を使ってた(lts-6.20)． サイトを作ってから約1年経ち，Haskell力(というか stack 力)も上がり，別に古い LTS を使わずとも stack.yaml をいじればなんとかなるというのが分かり，ずっと最新のに上げたいなぁと思っていた．
で，今回はいっそのこと最近リリースされた GHC8.2 用の resolver で，なんとかビルドしてみようかなと思ったわけです．
無駄に順を追って書いてあるけど，最後の数行を読むだけで十分(笑)．
GHC8.2 系の Stackage resolver
3週間ほど前に GHC8.2.1 が遂にリリースされ，それに伴い，10日ほど前に Stackage の GHC8.2 対応の resolver がリリースされた． まだリリースされたばかりで，Hakyll を含め，いろんなパッケージが除外されている．
なので，この resolver で Hakyll のサイトをビルドするには三手間ぐらい必要だった．
stack.yaml をいじる
基本的には stack.yaml をいじるだけで良い(??)．
extra-deps を書き換えていく
試しに stack.yaml の resolver を nightly-2017-08-10 にして stack build してみると次のように出る．
$ stack build
Error: While constructing the build plan, the following exceptions were encountered:
In the dependencies for site-0.2.0.1:
hakyll must match -any, but the stack configuration has no specified version (latest applicable is 4.9.8.0)
yaml-light must match -any, but the stack configuration has no specified version (latest applicable is 0.1.4)
needed since site-0.2.0.1 is a build target.
Recommended action: try adding the following to your extra-deps in C:\Users\hoge\matsubara0507.github.io\stack.yaml:
- hakyll-4.9.8.0
- yaml-light-0.1.4
You may also want to try the 'stack solver' command
Plan construction failed.hakyll と yaml-light が無いと言われる． ので，素直にエラーメッセージ通り，stack.yaml の extra-deps に2つのパッケージを書き加えてやる．
$ stack build
Error: While constructing the build plan, the following exceptions were encountered:
In the dependencies for hakyll-4.9.8.0:
pandoc must match >=1.14 && <1.20, but the stack configuration has no specified version
(latest applicable is 1.19.2.1)
pandoc-citeproc must match >=0.10.5 && <0.11, but the stack configuration has no specified version
(latest applicable is 0.10.5.1)
process-1.6.1.0 must match >=1.0 && <1.6 (latest applicable is 1.5.0.0)
time-1.8.0.2 must match >=1.4 && <1.8 (latest applicable is 1.7.0.1)
needed due to site-0.2.0.1 -> hakyll-4.9.8.0
In the dependencies for yaml-light-0.1.4:
HsSyck must match -any, but the stack configuration has no specified version (latest applicable is 0.53)
needed due to site-0.2.0.1 -> yaml-light-0.1.4
Recommended action: try adding the following to your extra-deps in C:\Users\hoge\matsubara0507.github.io\stack.yaml:
- HsSyck-0.53
- pandoc-1.19.2.1
- pandoc-citeproc-0.10.5.1
You may also want to try the 'stack solver' command
Plan construction failed.また書き加える．
$ stack build
Unable to parse cabal file for haddock-library-1.4.5: FromString "This package requires at least Cabal version 2.0" Nothingうーん，これはよくわからない． てっきり，Cabal を 2.0 以上にすればよいのかと思い，それに対応した stack-1.5.1 にあげればうまくいくのだと思ったのだが，うまくいかなかった． なので，問題が起きない haddock-library-1.4.3 を使うことにした．
ちなみに，nightly-2017-08-10 を使うだけで以下のような同様のエラーが出たが，これは stack-1.5.1 にするだけでうまくいった(haskell-jp で igrep さんに教えてもらった！感謝！！)．
$ stack build
Unable to parse cabal file: FromString "This package requires at least Cabal version 2.0" Nothing閑話休題
$ stack build
Error: While constructing the build plan, the following exceptions were encountered:
In the dependencies for hakyll-4.9.8.0:
process-1.6.1.0 must match >=1.0 && <1.6 (latest applicable is 1.5.0.0)
time-1.8.0.2 must match >=1.4 && <1.8 (latest applicable is 1.7.0.1)
needed due to site-0.2.0.1 -> hakyll-4.9.8.0
In the dependencies for pandoc-1.19.2.1:
hslua-0.6.0 must match >=0.3 && <0.5 (latest applicable is 0.4.1)
process-1.6.1.0 must match >=1 && <1.5 (latest applicable is 1.4.3.0)
skylighting-0.3.3.1 must match >=0.1.1.4 && <0.2 (latest applicable is 0.1.1.5)
time-1.8.0.2 must match >=1.5 && <1.7 (latest applicable is 1.6.0.1)
needed due to site-0.2.0.1 -> pandoc-1.19.2.1
Plan construction failed.適当に古いパッケージを選択してあげる．
- time-1.6.0.1
- skylighting-0.1.1.5
- process-1.4.3.0
- hslua-0.4.1Pandoc 2.0 を使う
今までのようなエラーは出なくなったが普通にコンパイルエラーが起きる．
pandoc-1.19.2.1: configure
Progress: 1/4
-- While building package pandoc-1.19.2.1 using:
Process exited with code: ExitFailure 1
Logs have been written to: C:\Users\hoge\matsubara0507.github.io\.stack-work\logs\pandoc-1.19.2.1.log
[1 of 2] Compiling Main
C:\Users\hoge\AppData\Local\Temp\stack2412\pandoc-1.19.2.1\Setup.hs:42:3: error:
• Couldn't match expected type ‘ComponentLocalBuildInfo
-> PreProcessor’
with actual type ‘PreProcessor’
• In the expression:
PreProcessor
{platformIndependent = True,
runPreProcessor = mkSimplePreProcessor
$ \ infile outfile verbosity
-> do let ...
....}
In the expression:
\ _ lbi
-> PreProcessor
{platformIndependent = True,
runPreProcessor = mkSimplePreProcessor
$ \ infile outfile verbosity -> ...}
In the expression:
("hsb",
\ _ lbi
-> PreProcessor
{platformIndependent = True,
runPreProcessor = mkSimplePreProcessor
$ \ infile outfile verbosity -> ...})
|
42 | PreProcessor {
| ^^^^^^^^^^^^^^...
C:\Users\hoge\AppData\Local\Temp\stack2412\pandoc-1.19.2.1\Setup.hs:45:39: error:
Data constructor not in scope: FlagName :: [Char] -> FlagName
|
45 | do let embedData = case lookup (FlagName "embed_data_files")
| ^^^^^^^^これは Cabal-2.0 で変わった仕様によるエラーだ． 最新の pandoc-2.0なら直っているので，個別にクローンする設定にする．
packages:
- '.'
- location:
git: https://github.com/jgm/pandoc
commit: f4bff5d3599d0b6874c6b6604fb11016f8e038a9
extra-dep: truestack.yaml をこう書き換えてビルドする．
$ stack build
Error: While constructing the build plan, the following exceptions were encountered:
In the dependencies for pandoc-2.0:
cmark-gfm must match >=0.1.1 && <0.2, but the stack configuration has no specified version
(latest applicable is 0.1.3)
skylighting-0.1.1.5 must match >=0.3.3 && <0.4 (latest applicable is 0.3.3.1)
needed due to site-0.2.0.1 -> pandoc-2.0
Recommended action: try adding the following to your extra-deps in C:\Users\hoge\matsubara0507.github.io\stack.yaml:
- cmark-gfm-0.1.3
You may also want to try the 'stack solver' command
Plan construction failed.pandoc-2.0 では skylighting の PVP を変えたようだので extra-deps から外し，代わりに cmark-gfm-0.1.3 を書き加える．
Fork して書き換える
$ stack build
Error: While constructing the build plan, the following exceptions were encountered:
In the dependencies for hakyll-4.9.8.0:
pandoc-2.0 must match >=1.14 && <1.20 (latest applicable is 1.19.2.1)
needed due to site-0.2.0.1 -> hakyll-4.9.8.0
Plan construction failed.hakyll がそもそも pandoc-2.0 に対応していないようだ． 割とここからが大変． というのも pandoc-2.0 はまぁまぁ仕様が変わっているので，PVP をいじるだけではうまくビルドできない． 幸いにも，pandoc-2.0 に対応させた fork があったので，これを参考に書き直した． ついでに，time パッケージと process パッケージの PVP も書き直す．
それらの書き換えを自分の fork で行いプッシュして，それをクローンするように stack.yaml を書き加えた．
packages:
- '.'
- location:
git: https://github.com/matsubara0507/hakyll
commit: 4c2c499213750d622250f8277533eafb5ec1dc94
extra-dep: true
- location:
git: https://github.com/jgm/pandoc
commit: f4bff5d3599d0b6874c6b6604fb11016f8e038a9
extra-dep: trueこれでビルドすると pandoc-citeproc が怒られる．
pandoc-citeproc-0.10.5.1: configure
Progress: 2/4
-- While building package pandoc-citeproc-0.10.5.1 using:
Process exited with code: ExitFailure 1
Logs have been written to: C:\Users\hoge\matsubara0507.github.io\.stack-work\logs\pandoc-citeproc-0.10.5.1.log
[1 of 2] Compiling Main
C:\Users\hoge\AppData\Local\Temp\stack13296\pandoc-citeproc-0.10.5.1\Setup.hs:38:3: error:
• Couldn't match expected type ‘ComponentLocalBuildInfo
-> PreProcessor’
with actual type ‘PreProcessor’
• In the expression:
PreProcessor
{platformIndependent = True,
runPreProcessor = mkSimplePreProcessor
$ \ infile outfile verbosity
-> do info verbosity
$ "Preprocessing " ++ infile ++ " to " ++ outfile
....}
In the expression:
\ _ _
-> PreProcessor
{platformIndependent = True,
runPreProcessor = mkSimplePreProcessor
$ \ infile outfile verbosity -> ...}
In the expression:
("hsb",
\ _ _
-> PreProcessor
{platformIndependent = True,
runPreProcessor = mkSimplePreProcessor
$ \ infile outfile verbosity -> ...})
|
38 | PreProcessor {
| ^^^^^^^^^^^^^^...これも Cabal-2.0 の影響だ． なので，pandoc-citeproc パッケージも fork して直してプッシュしてそれをクローンする．
packages:
- '.'
- location:
git: https://github.com/matsubara0507/hakyll
commit: 4c2c499213750d622250f8277533eafb5ec1dc94
extra-dep: true
- location:
git: https://github.com/jgm/pandoc
commit: f4bff5d3599d0b6874c6b6604fb11016f8e038a9
extra-dep: true
- location:
git: https://github.com/matsubara0507/pandoc-citeproc.git
commit: 2a232dd33eb42ba73653a9661288a0026179c50f
extra-dep: true最終的に
多少整理して最終的に stack.yaml はこんな風になった．
resolver: nightly-2017-08-10
packages:
- '.'
- location:
git: https://github.com/matsubara0507/hakyll
commit: 4c2c499213750d622250f8277533eafb5ec1dc94
extra-dep: true
- location:
git: https://github.com/jgm/pandoc
commit: f4bff5d3599d0b6874c6b6604fb11016f8e038a9
extra-dep: true
- location:
git: https://github.com/matsubara0507/pandoc-citeproc.git
commit: 2a232dd33eb42ba73653a9661288a0026179c50f
extra-dep: true
extra-deps:
- cmark-gfm-0.1.3
- haddock-library-1.4.3
- hs-bibutils-5.5
- hslua-0.5.0
- HsSyck-0.53
- rfc5051-0.1.0.3
- yaml-light-0.1.4
flags: {}
extra-package-dbs: []おしまい
これで GHC8.2 の LTS が出てもすぐに対応できるね！(たぶん)