prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  LLNL Cardioid homepage no longer exists
  https://github.com/spack/spack/blob/fe5865da0d4ee4480a85ee1257cb310c036b0c88/var/spack/repos/builtin/packages/cardioid/package.py#L12
  
  @rblake-llnl it looks like Cardioid's [home page](https://baasic.llnl.gov/comp-bio/cardioid-code.php) redirects to a 404 these days. You're listed as the maintainer. Has the home of cardioid moved?
  
  </issue>
  <code>
  [start of var/spack/repos/builtin/packages/cardioid/package.py]
  1 # Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
  2 # Spack Project Developers. See the top-level COPYRIGHT file for details.
  3 #
  4 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  5 
  6 from spack.package import *
  7 
  8 
  9 class Cardioid(CMakePackage):
  10     """Cardiac simulation suite."""
  11 
  12     homepage = "https://baasic.llnl.gov/comp-bio/cardioid-code.php"
  13     git = "https://github.com/LLNL/cardioid.git"
  14     maintainers("rblake-llnl")
  15 
  16     version("develop", branch="master")
  17     version("elecfem", branch="elec-fem")
  18 
  19     variant("cuda", default=False, description="Build with cuda support")
  20     variant("mfem", default=False, description="Build with mfem support")
  21 
  22     depends_on("blas")
  23     depends_on("lapack")
  24     depends_on("mpi")
  25     depends_on("cuda", when="+cuda")
  26     depends_on("mfem+mpi+superlu-dist+lapack", when="+mfem")
  27     depends_on("hypre+cuda", when="+mfem+cuda")
  28     depends_on("cmake@3.1:", type="build")
  29     depends_on("perl", type="build")
  30 
  31     def cmake_args(self):
  32         spec = self.spec
  33         args = [
  34             "-DLAPACK_LIB:PATH=" + ";".join(spec["lapack"].libs.libraries),
  35             "-DBLAS_LIB:PATH=" + ";".join(spec["blas"].libs.libraries),
  36             "-DENABLE_OPENMP:BOOL=ON",
  37             "-DENABLE_MPI:BOOL=ON",
  38             "-DENABLE_FIND_MPI:BOOL=OFF",
  39             "-DMPI_C_COMPILER:STRING=" + spec["mpi"].mpicc,
  40             "-DMPI_CXX_COMPILER:STRING=" + spec["mpi"].mpicxx,
  41             "-DCMAKE_C_COMPILER:STRING=" + spec["mpi"].mpicc,
  42             "-DCMAKE_CXX_COMPILER:STRING=" + spec["mpi"].mpicxx,
  43         ]
  44 
  45         if "+cuda" in self.spec:
  46             args.append("-DENABLE_CUDA:BOOL=ON")
  47             args.append("-DCUDA_TOOLKIT_ROOT:PATH=" + spec["cuda"].prefix)
  48         else:
  49             args.append("-DENABLE_CUDA:BOOL=OFF")
  50 
  51         if "+mfem" in self.spec:
  52             args.append("-DMFEM_DIR:PATH=" + spec["mfem"].prefix)
  53         return args
  54
  [end of var/spack/repos/builtin/packages/cardioid/package.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/var/spack/repos/builtin/packages/cardioid/package.py b/var/spack/repos/builtin/packages/cardioid/package.py
  --- a/var/spack/repos/builtin/packages/cardioid/package.py
  +++ b/var/spack/repos/builtin/packages/cardioid/package.py
  @@ -9,7 +9,7 @@
   class Cardioid(CMakePackage):
       """Cardiac simulation suite."""
   
  -    homepage = "https://baasic.llnl.gov/comp-bio/cardioid-code.php"
  +    homepage = "https://baasic.llnl.gov/comp-bio/cardioid-code"
       git = "https://github.com/LLNL/cardioid.git"
       maintainers("rblake-llnl")
  
verification_info: {"golden_diff": "diff --git a/var/spack/repos/builtin/packages/cardioid/package.py b/var/spack/repos/builtin/packages/cardioid/package.py\n--- a/var/spack/repos/builtin/packages/cardioid/package.py\n+++ b/var/spack/repos/builtin/packages/cardioid/package.py\n@@ -9,7 +9,7 @@\n class Cardioid(CMakePackage):\n     \"\"\"Cardiac simulation suite.\"\"\"\n \n-    homepage = \"https://baasic.llnl.gov/comp-bio/cardioid-code.php\"\n+    homepage = \"https://baasic.llnl.gov/comp-bio/cardioid-code\"\n     git = \"https://github.com/LLNL/cardioid.git\"\n     maintainers(\"rblake-llnl\")\n", "issue": "LLNL Cardioid homepage no longer exists\nhttps://github.com/spack/spack/blob/fe5865da0d4ee4480a85ee1257cb310c036b0c88/var/spack/repos/builtin/packages/cardioid/package.py#L12\r\n\r\n@rblake-llnl it looks like Cardioid's [home page](https://baasic.llnl.gov/comp-bio/cardioid-code.php) redirects to a 404 these days. You're listed as the maintainer. Has the home of cardioid moved?\n", "before_files": [{"content": "# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other\n# Spack Project Developers. See the top-level COPYRIGHT file for details.\n#\n# SPDX-License-Identifier: (Apache-2.0 OR MIT)\n\nfrom spack.package import *\n\n\nclass Cardioid(CMakePackage):\n    \"\"\"Cardiac simulation suite.\"\"\"\n\n    homepage = \"https://baasic.llnl.gov/comp-bio/cardioid-code.php\"\n    git = \"https://github.com/LLNL/cardioid.git\"\n    maintainers(\"rblake-llnl\")\n\n    version(\"develop\", branch=\"master\")\n    version(\"elecfem\", branch=\"elec-fem\")\n\n    variant(\"cuda\", default=False, description=\"Build with cuda support\")\n    variant(\"mfem\", default=False, description=\"Build with mfem support\")\n\n    depends_on(\"blas\")\n    depends_on(\"lapack\")\n    depends_on(\"mpi\")\n    depends_on(\"cuda\", when=\"+cuda\")\n    depends_on(\"mfem+mpi+superlu-dist+lapack\", when=\"+mfem\")\n    depends_on(\"hypre+cuda\", when=\"+mfem+cuda\")\n    depends_on(\"cmake@3.1:\", type=\"build\")\n    depends_on(\"perl\", type=\"build\")\n\n    def cmake_args(self):\n        spec = self.spec\n        args = [\n            \"-DLAPACK_LIB:PATH=\" + \";\".join(spec[\"lapack\"].libs.libraries),\n            \"-DBLAS_LIB:PATH=\" + \";\".join(spec[\"blas\"].libs.libraries),\n            \"-DENABLE_OPENMP:BOOL=ON\",\n            \"-DENABLE_MPI:BOOL=ON\",\n            \"-DENABLE_FIND_MPI:BOOL=OFF\",\n            \"-DMPI_C_COMPILER:STRING=\" + spec[\"mpi\"].mpicc,\n            \"-DMPI_CXX_COMPILER:STRING=\" + spec[\"mpi\"].mpicxx,\n            \"-DCMAKE_C_COMPILER:STRING=\" + spec[\"mpi\"].mpicc,\n            \"-DCMAKE_CXX_COMPILER:STRING=\" + spec[\"mpi\"].mpicxx,\n        ]\n\n        if \"+cuda\" in self.spec:\n            args.append(\"-DENABLE_CUDA:BOOL=ON\")\n            args.append(\"-DCUDA_TOOLKIT_ROOT:PATH=\" + spec[\"cuda\"].prefix)\n        else:\n            args.append(\"-DENABLE_CUDA:BOOL=OFF\")\n\n        if \"+mfem\" in self.spec:\n            args.append(\"-DMFEM_DIR:PATH=\" + spec[\"mfem\"].prefix)\n        return args\n", "path": "var/spack/repos/builtin/packages/cardioid/package.py"}]}