JSC/Golden_Repo/j/JupyterKernel-Java/JupyterKernel-Java-2.2.0-GCCcore-13.3.0.eb at 2025 · easybuilders/JSC · GitHub

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# This file is part of JSC's public easybuild repository (https://github.com/easybuilders/jsc)
easyblock = 'JAR'

name = 'JupyterKernel-Java'
version = '2.2.0'
local_java_ver = '21'

homepage = 'https://github.com/padreati/rapaio-jupyter-kernel'
description = """Jupyter kernel for Java language based on JShell.
"""

toolchain = {'name': 'GCCcore', 'version': '13.3.0'}

source_urls = ['https://github.com/padreati/rapaio-jupyter-kernel/releases/download/%(version)s']
sources = ['rapaio-jupyter-kernel-%(version)s.jar']
patches = [
    ('logo-32x32.png', '.'),
    ('logo-64x64.png', '.'),
    ('logo-128x128.png', '.'),
]
checksums = [
    {'rapaio-jupyter-kernel-2.2.0.jar': 'a01cc1fadf7ed474d4353d207969c0773321d46f41ed66019936200e4a190e63'},
    {'logo-32x32.png': 'ab3278228d3ed898050bec348c9aee2201f1e7792b7d29cc725b01b71df8dcec'},
    {'logo-64x64.png': 'ff1bf6d14050371c69f1db86e39f02a3f58653915c702d259d7772335efa48cd'},
    {'logo-128x128.png': '9c1fe77de07e5d2b0d2dbc0945058859a8b2fbc558e4a939db21bf1fba2a534c'},
]

builddependencies = [
    ('binutils', '2.42'),
]

dependencies = [
    ('Java', local_java_ver, '', SYSTEM),
    ('java-language-server', '0.2.46'),
]

local_jupyter_path = 'share/jupyter'

modextrapaths = {
    'JUPYTER_PATH': ['share/jupyter'],  # add search path for kernelspecs
}

local_kernel_dir = 'rapaio-jupyter-kernel'
local_kernel_name = 'Java -%s' % local_java_ver

# Ensure that the user-specific $HOME/.local/share/jupyter is always first entry in JUPYTHER_PATH
modluafooter = """
remove_path("JUPYTER_PATH", pathJoin(os.getenv("HOME"), ".local/share/jupyter"))
prepend_path("JUPYTER_PATH", pathJoin(os.getenv("HOME"), ".local/share/jupyter"))
"""

postinstallcmds = [
    # create kernel skeleton
    (
        'mkdir -p  %%(installdir)s/share/jupyter/kernels/%s && '
        'mv %%(installdir)s/logo-32x32.png   %%(installdir)s/share/jupyter/kernels/%s/logo-32x32.png && '
        'mv %%(installdir)s/logo-64x64.png   %%(installdir)s/share/jupyter/kernels/%s/logo-64x64.png && '
        'mv %%(installdir)s/logo-128x128.png %%(installdir)s/share/jupyter/kernels/%s/logo-128x128.png && '
        'mv %%(installdir)s/rapaio-jupyter-kernel-%%(version)s.jar %%(installdir)s/share/jupyter/kernels/%s/ '
    ) % (local_kernel_dir, local_kernel_dir, local_kernel_dir, local_kernel_dir, local_kernel_dir),
    # write kernel.sh
    (
        '{ cat > %%(installdir)s/share/jupyter/kernels/%s/kernel.sh; } << EOF\n'
        '#!/bin/sh\n'
        'module purge\n'
        'module load Stages/${STAGE}\n'
        'module load Java/%s\n'
        'exec java \$@\n'
        'EOF'
    ) % (local_kernel_dir, local_java_ver),
    'chmod +x %%(installdir)s/share/jupyter/kernels/%s/kernel.sh' % local_kernel_dir,
    # Jupyter Kernel: Java
    (
        '{ cat > %%(installdir)s/share/jupyter/kernels/%s/kernel.json; } << EOF\n'
        '{\n'
        '  "argv": [\n'
        '    "%%(installdir)s/share/jupyter/kernels/%s/kernel.sh",\n'
        '    "--enable-preview",\n'
        '    "--add-modules",\n'
        '    "java.base,jdk.incubator.vector",\n'
        '    "-jar",\n'
        '    "%%(installdir)s/share/jupyter/kernels/%s/rapaio-jupyter-kernel-%%(version)s.jar",\n'
        '    "{connection_file}"\n'
        '  ],\n'
        '  "display_name": "%s",\n'
        '  "language": "java",\n'
        '  "interrupt_mode": "message",\n'
        '  "env": {\n'
        '    "RJK_COMPILER_OPTIONS": "",\n'
        '    "RJK_INIT_SCRIPT": "",\n'
        '    "RJK_TIMEOUT_MILLIS": "-1"\n'
        '  }\n'
        '}\n'
        'EOF'
    ) % (local_kernel_dir, local_kernel_dir, local_kernel_dir, local_kernel_name),
]

sanity_check_paths = {
    'files': [
        'share/jupyter/kernels/%s/kernel.json' % (local_kernel_dir),
    ],
    'dirs': [
        'share/jupyter/kernels/%s' % (local_kernel_dir),
    ],
}

moduleclass = 'tools'