[bug#44425] Add git-annex assistant and dependencies

[Christopher Lemmer Webber]

Attached is a highly WIP patch for the git-annex assistant (sloppily
includes the two dependencies that also need to be added, will separate
once I get it all working).  However, it doesn't work... here's the
point at which it stopped working:

[601 of 607] Compiling Assistant        ( Assistant.hs, 
dist/build/git-annex/git-annex-tmp/Assistant.dyn_o )

Assistant.hs:73:55: warning: [-Wunused-matches]
    Defined but not used: ‘listenhost’
   |
73 | startDaemon assistant foreground startdelay cannotrun listenhost 
startbrowser = do
   |                                                       ^^^^^^^^^^
[602 of 607] Compiling Command.Watch    ( Command/Watch.hs, 
dist/build/git-annex/git-annex-tmp/Command/Watch.dyn_o )
[603 of 607] Compiling Command.Assistant ( Command/Assistant.hs, 
dist/build/git-annex/git-annex-tmp/Command/Assistant.dyn_o )
[604 of 607] Compiling CmdLine.GitAnnex ( CmdLine/GitAnnex.hs, 
dist/build/git-annex/git-annex-tmp/CmdLine/GitAnnex.dyn_o )
[605 of 607] Compiling Main             ( git-annex.hs, 
dist/build/git-annex/git-annex-tmp/Main.dyn_o )
[606 of 607] Compiling Assistant.Pairing.Network ( 
Assistant/Pairing/Network.hs, 
dist/build/git-annex/git-annex-tmp/Assistant/Pairing/Network.dyn_o )

Assistant/Pairing/Network.hs:20:1: error:
    Could not find module ‘Network.Multicast’
    Use -v to see a list of the files searched for.
   |
20 | import Network.Multicast
   | ^^^^^^^^^^^^^^^^^^^^^^^^

Assistant/Pairing/Network.hs:21:1: error:
    Could not load module ‘Network.Info’
    It is a member of the hidden package ‘network-info-0.2.0.10’.
    Perhaps you need to add ‘network-info’ to the build-depends in your .cabal 
file.
    Use -v to see a list of the files searched for.
   |
21 | import Network.Info
   | ^^^^^^^^^^^^^^^^^^^
command "runhaskell" "Setup.hs" "build" "--ghc-option=-j8" failed with status 1

I'm unsure why it would be failing since I did add network-info to the
inputs.  Any ideas?

>From 092183597b503ef349401a99ce1e981f4b3d29ba Mon Sep 17 00:00:00 2001
From: Christopher Lemmer Webber <cwebber@dustycloud.org>
Date: Tue, 3 Nov 2020 14:21:51 -0500
Subject: [PATCH] Git annex assistant wip

---
 gnu/packages/haskell-apps.scm |  6 +++++-
 gnu/packages/haskell-xyz.scm  | 21 +++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/haskell-apps.scm b/gnu/packages/haskell-apps.scm
index 1de8b040f1..e3f0ed01f5 100644
--- a/gnu/packages/haskell-apps.scm
+++ b/gnu/packages/haskell-apps.scm
@@ -350,7 +350,7 @@ to @code{cabal repl}).")
     (build-system haskell-build-system)
     (arguments
      `(#:configure-flags
-       '("--flags=-Android -Assistant -Pairing -Webapp")
+       '("--flags=-Android -Pairing -Webapp")
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'patch-shell-for-tests
@@ -449,6 +449,7 @@ to @code{cabal repl}).")
        ("ghc-cryptonite" ,ghc-cryptonite)
        ("ghc-data-default" ,ghc-data-default)
        ("ghc-dav" ,ghc-dav)
+       ("ghc-dbus" ,ghc-dbus)
        ("ghc-disk-free-space" ,ghc-disk-free-space)
        ("ghc-dlist" ,ghc-dlist)
        ("ghc-edit-distance" ,ghc-edit-distance)
@@ -457,6 +458,7 @@ to @code{cabal repl}).")
        ("ghc-feed" ,ghc-feed)
        ("ghc-filepath-bytestring" ,ghc-filepath-bytestring)
        ("ghc-free" ,ghc-free)
+       ("ghc-hinotify" ,ghc-hinotify)
        ("ghc-hslogger" ,ghc-hslogger)
        ("ghc-http-client" ,ghc-http-client)
        ("ghc-http-conduit" ,ghc-http-conduit)
@@ -466,7 +468,9 @@ to @code{cabal repl}).")
        ("ghc-memory" ,ghc-memory)
        ("ghc-monad-control" ,ghc-monad-control)
        ("ghc-monad-logger" ,ghc-monad-logger)
+       ("ghc-mountpoints" ,ghc-mountpoints)
        ("ghc-network" ,ghc-network)
+       ("ghc-network-info" ,ghc-network-info)
        ("ghc-old-locale" ,ghc-old-locale)
        ("ghc-optparse-applicative" ,ghc-optparse-applicative)
        ("ghc-persistent" ,ghc-persistent)
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 43dc7d5bbf..24be3ce5bc 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -15416,3 +15416,24 @@ Zstandard compression algorithm, a fast lossless 
compression algorithm
 targeting real-time compression scenarios at zlib-level and better
 compression ratios.")
     (license license:bsd-3)))
+
+(define-public ghc-mountpoints
+  (package
+    (name "ghc-mountpoints")
+    (version "1.0.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://hackage.haskell.org/package/mountpoints/mountpoints-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "1hnm31pqcffphyc463wf0vbik9fzm5lb2r4wjdc1y4dqzmjdzz37"))))
+    (build-system haskell-build-system)
+    (home-page
+     "http://hackage.haskell.org/package/mountpoints";)
+    (synopsis "list mount points")
+    (description "Lists currently mounted filesystems. . Works on: Linux, BSD, 
Mac OS X, Android")
+    (license license:lgpl2.1+)))
-- 
2.29.1