在Ubuntu上Tidal
使用Haskell软件包安装时遇到问题。cabal
18:04
https://tidalcycles.org/index.php/Userbase
我不是Haskell专家,并且之前已经花了好几次时间来研究这些东西,所以我尝试使用此工具尽可能尝试新的安装-
https://www.haskell.org/ghcup/
我会尽可能多地清理与Haskell相关的内容-
justin@justin-XPS-13-9360:~$ rm -rf ~/.cabal/
justin@justin-XPS-13-9360:~$ rm -rf ~/.ghc
justin@justin-XPS-13-9360:~$ rm -rf ~/.ghcup
还有任何Ubuntu旧版Haskell-
justin@justin-XPS-13-9360:~$ sudo apt-get remove ghc
以便 -
justin@justin-XPS-13-9360:~$ ghci
bash: /home/justin/.ghcup/bin/ghci: No such file or directory
好的,我们走吧 -
curl https://get-ghcup.haskell.org -sSf | sh
这给了我-
{...}
Done installing, run "ghci-8.6.5" or set up your current GHC via: ghcup set 8.6.5
Setting GHC to 8.6.5
Done
Setting GHC to 8.6.5
Done
{...}
Successfully installed cabal-install into
/home/justin/.ghcup/bin
Detected "/home/justin/.bashrc" on your system...
If you want ghcup to automatically fix your "/home/justin/.bashrc" to include the required PATH variable
answer with YES, otherwise with NO and press ENTER.
YES
OK! /home/justin/.bashrc has been modified. Restart your terminal for the changes to take effect,
or type "source /home/justin/.ghcup/env" to apply them in your current terminal session.
让我们设置PATH
和测试-
justin@justin-XPS-13-9360:~$ source /home/justin/.ghcup/env
justin@justin-XPS-13-9360:~$ ghci
GHCi, version 8.6.5: http://www.haskell.org/ghc/ :? for help
Prelude>
到现在为止还挺好。现在跟随这个-
https://tidalcycles.org/index.php/疑难解答_a_Tidal_install
我尝试以下-
justin@justin-XPS-13-9360:~$ cabal update
Downloading the latest package list from hackage.haskell.org
To revert to previous state run:
cabal v2-update 'hackage.haskell.org,2019-11-20T01:17:49Z'
接着 -
justin@justin-XPS-13-9360:~$ cabal new-install tidal --lib
{...}
Starting tidal-1.4.4 (lib)
Building tidal-1.4.4 (lib)
Installing tidal-1.4.4 (lib)
Completed tidal-1.4.4 (lib)
看起来仍然不错,但这是问题开始的地方-
justin@justin-XPS-13-9360:~$ cabal info tidal
* tidal (library)
Synopsis: Pattern language for improvised music
Versions available: 0.8.2, 0.9.9, 0.9.10, 1.2.1, 1.3.0, 1.4.1, 1.4.2, 1.4.3,
1.4.4 (and 99 others)
Versions installed: [ Not installed ]
嗯- Not installed
?? 还有-
justin@justin-XPS-13-9360:~$ ghc-pkg latest tidal
ghc-pkg: cannot find package tidal
h 但是,如果我看一下,~/.cabal
可以看到已经安装了一些东西-
justin@justin-XPS-13-9360:~$ ls -l /home/justin/.cabal/store/ghc-8.6.5/
total 100
{...}
drwxr-xr-x 4 justin justin 4096 Nov 20 06:00 tidal-1.4.4-898a4af91fab9d9d757e1a84104bbd7ca568a77d48b4679a3f4addb65912423a
{...}
我什至可以检查其中安装的库~/.cabal/store
是否正常工作-
justin@justin-XPS-13-9360:~$ ghci
GHCi, version 8.6.5: http://www.haskell.org/ghc/ :? for help
Loaded package environment from /home/justin/.ghc/x86_64-linux-8.6.5/environments/default
Prelude> :script /home/justin/.cabal/store/ghc-8.6.5/tidal-1.4.4-898a4af91fab9d9d757e1a84104bbd7ca568a77d48b4679a3f4addb65912423a/share/BootTidal.hs
Listening for controls on 127.0.0.1:6010
tidal> :t d1
d1 :: Pattern ControlMap -> IO ()
tidal>
但是我想使用Tidal
其emacs扩展名-
https://github.com/tidalcycles/Tidal/blob/master/tidal.el
它按以下方式查找软件包,并需要cabal info tidal
返回正确安装的版本-
'(("path" . "ghc-pkg describe $(ghc-pkg latest tidal) | grep data-dir | cut -f2 -d' '")
本质上,emacs扩展程序希望该程序包在此处生活(这样可以使cabal info tidal
工作)
/home/justin/.cabal/share/x86_64-linux-ghc-8.6.5/tidal-1.4.4/BootTidal.hs
但cabal
似乎只能“部分”在此处安装软件包-
/home/justin/.cabal/store/ghc-8.6.5/tidal-1.4.4-898a4af91fab9d9d757e1a84104bbd7ca568a77d48b4679a3f4addb65912423a/share/BootTidal.hs
现在,我可能可以修改emacs扩展名,使其指向~/.cabal/store
而不是~/.cabal/share
,但我希望它可以正常工作并cabal info tidal
返回正确的版本。
谁能启发我为什么cabal
不将文件推送到~/.cabal/share
?
TIA。
按照上述步骤关闭它实际上是“有效的”,只是cabal
社区似乎正在从“旧式”安装过程过渡到“新式”过程,并且区别并不总是很明显。新来者。同样,某些软件包的某些部分(特别是tidal.el
在Tidal
软件包中)尚未更新以反映cabal
安装过程中的更改。谢谢!
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