build: add support for `haskell.nix`

.gitignore

@@ -45,3 +45,8 @@ devops/docker/js-cache
 
 cabal.project.local
 gargantext_profile_out.dot
+
+# Nix
+!flake.lock
+cabal.project.flake
+nix/cache/roots

patches/accelerate-arithmetic/0001-remove-test-using-removed-realBandedGramian.patch

+From 64cd06549f19ad447f18a45d872b59b2b2db9135 Mon Sep 17 00:00:00 2001
+From: Julien Moutinho <julm+gargantext@sourcephile.fr>
+Date: Wed, 28 Jun 2023 23:07:32 +0200
+Subject: [PATCH] remove test using removed `realBandedGramian`
+
+---
+ test/Test.hs                                         | 1 -
+ test/Test/Data/Array/Accelerate/Arithmetic/Sparse.hs | 7 -------
+ 2 files changed, 8 deletions(-)
+
+diff --git a/test/Test.hs b/test/Test.hs
+index ebc140f..ea736ee 100644
+--- a/test/Test.hs
++++ b/test/Test.hs
+@@ -10,7 +10,6 @@ import Test.QuickCheck (quickCheck)
+ test :: IO ()
+ test = mapM_ (\(msg,act) -> putStr (msg++": ") >> act) $
+    ("sparseMatrix", quickCheck (\(Mod.Blind x) -> Sparse.multiplication x)) :
+-   ("bandedGramian", quickCheck (\(Mod.Blind x) -> Sparse.bandedGramian x)) :
+    ("flattenMatrix", quickCheck (\(Mod.Blind x) -> LinAlg.flattenMatrix x)) :
+    ("restoreMatrix", quickCheck (\(Mod.Blind x) -> LinAlg.restoreMatrix x)) :
+    ("flattenRestoreMatrix", quickCheck (\(Mod.Blind x) -> LinAlg.flattenRestoreMatrix x)) :
+diff --git a/test/Test/Data/Array/Accelerate/Arithmetic/Sparse.hs b/test/Test/Data/Array/Accelerate/Arithmetic/Sparse.hs
+index da497dd..15e7e51 100644
+--- a/test/Test/Data/Array/Accelerate/Arithmetic/Sparse.hs
++++ b/test/Test/Data/Array/Accelerate/Arithmetic/Sparse.hs
+@@ -73,10 +73,3 @@ instance (QC.Arbitrary a, A.Elt a) => QC.Arbitrary (BandGramian a) where
+       return $
+          BandGramian (A.lift width)
+             (Sparse.Rows (A.lift cols) (A.use m))
+-
+-
+-bandedGramian :: BandGramian Word32 -> Bool
+-bandedGramian (BandGramian width m) =
+-   Sparse.multiplyColumnsRows (Sparse.transposeRows m) m
+-   =!=
+-   BandMatrix.flattenSymmetric (Sparse.realBandedGramian width m)
+-- 
+2.40.1
+

patches/graphviz/graphviz-yy-buf-size.diff

+--- a/lib/cgraph/scan.l
++++ b/lib/cgraph/scan.l
+@@ -32,7 +32,7 @@
+ #include <stdbool.h>
+ #include <stddef.h>
+ #include <string.h>
+-// #define YY_BUF_SIZE 128000
++#define YY_BUF_SIZE 128000
+ #define GRAPH_EOF_TOKEN		'@'		/* lex class must be defined below */
+ 	/* this is a workaround for linux flex */
+ static int line_num = 1;
\ No newline at end of file