Implemented igraph

server/pypi/build-wheel.py

@@ -704,7 +704,7 @@ def env_vars(self):
         })
 
         for var in self.meta["build"]["script_env"]:
-            key, value = var.split("=")
+            key, value = var.split("=", 1)
             env[key] = value
 
         # We do this unconditionally, because we don't know whether the package requires

server/pypi/packages/igraph/arith-android64.h

@@ -0,0 +1,16 @@
+// See https://igraph.org/c/html/latest/igraph-Installation.html. Although that page
+// says the following settings are for macOS, running arithchk on Android returns the
+// same values, according to
+// https://github.com/chaquo/chaquopy/pull/1196#discussion_r1825264094.
+
+// f2c requires this setting even on ARM64.
+#define IEEE_8087
+
+#define Arith_Kind_ASL 1
+#define Long int
+#define Intcast (int)(long)
+#define Double_Align
+#define X64_bit_pointers
+#define NANCHECK
+#define QNaN0 0x0
+#define QNaN1 0x7ff80000

server/pypi/packages/igraph/meta.yaml

@@ -0,0 +1,26 @@
+package:
+  name: igraph
+  version: "0.11.8"
+
+build:
+  number: 1
+  script_env:
+    - MAKEFLAGS=-j${CPU_COUNT}
+
+    # For the F2C and IEEE settings, see arith-android64.h.
+    #
+    # LTO is disabled because it doesn't pass the necessary argument to the linker
+    # (https://github.com/android/ndk/issues/2069#issuecomment-2347153515).
+    #
+    # OpenMP is disabled so we can avoid testing and releasing a new version of
+    # chaquopy-libomp.
+    - >-
+        IGRAPH_CMAKE_EXTRA_ARGS=
+        -DF2C_EXTERNAL_ARITH_HEADER=../../../../../../../arith-android64.h
+        -DIEEE754_DOUBLE_ENDIANNESS_MATCHES=ON
+        -DIGRAPH_ENABLE_LTO=OFF
+        -DIGRAPH_OPENMP_SUPPORT=OFF
+
+requirements:
+  build:
+    - cmake 3.28.1

server/pypi/packages/igraph/test.py

@@ -0,0 +1,51 @@
+import unittest
+
+
+class TestIgraph(unittest.TestCase):
+
+    def testGraphCreation(self):
+        from igraph import Graph
+        g = Graph()
+        self.assertTrue(isinstance(g, Graph))
+        self.assertTrue(g.vcount() == 0 and g.ecount() == 0 and not g.is_directed())
+
+        g = Graph(3, [(0, 1), (1, 2), (2, 0)])
+        self.assertTrue(
+            g.vcount() == 3
+            and g.ecount() == 3
+            and not g.is_directed()
+            and g.is_simple()
+        )
+
+        g = Graph(2, [(0, 1), (1, 2), (2, 3)], True)
+        self.assertTrue(
+            g.vcount() == 4 and g.ecount() == 3 and g.is_directed() and g.is_simple()
+        )
+
+        g = Graph([(0, 1), (1, 2), (2, 1)])
+        self.assertTrue(
+            g.vcount() == 3
+            and g.ecount() == 3
+            and not g.is_directed()
+            and not g.is_simple()
+        )
+
+        g = Graph(((0, 1), (0, 0), (1, 2)))
+        self.assertTrue(
+            g.vcount() == 3
+            and g.ecount() == 3
+            and not g.is_directed()
+            and not g.is_simple()
+        )
+
+        g = Graph(8, None)
+        self.assertEqual(8, g.vcount())
+        self.assertEqual(0, g.ecount())
+        self.assertFalse(g.is_directed())
+
+        g = Graph(edges=None)
+        self.assertEqual(0, g.vcount())
+        self.assertEqual(0, g.ecount())
+        self.assertFalse(g.is_directed())
+
+        self.assertRaises(TypeError, Graph, edgelist=[(1, 2)])