8000 Implement backend setup in matplotlibrc · matplotlib/matplotlib@9f19159 · GitHub
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Implement backend setup in matplotlibrc
1 parent e65e538 commit 9f19159

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3 files changed

+53
-4
lines changed

3 files changed

+53
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lines changed

‎lib/matplotlib/meson.build‎

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@@ -158,16 +158,13 @@ endif
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subdir('_api')
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subdir('axes')
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subdir('backends')
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subdir('mpl-data')
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subdir('projections')
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subdir('sphinxext')
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subdir('style')
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subdir('testing')
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subdir('tri')
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install_subdir(
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'mpl-data',
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install_tag: 'data',
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install_dir: py3.get_install_dir(subdir: 'matplotlib'))
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install_subdir('tests',
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install_tag: 'tests',
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install_dir: py3.get_install_dir(subdir: 'matplotlib'))

‎lib/matplotlib/mpl-data/meson.build‎

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custom_target('matplotlibrc',
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command: [
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find_program(meson.project_source_root() / 'tools/generate_matplotlibrc.py'),
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'@INPUT@',
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'@OUTPUT@',
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get_option('rcParams-backend')
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],
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input: 'matplotlibrc',
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output: 'matplotlibrc',
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install: true,
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install_tag: 'data',
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install_dir: py3.get_install_dir(subdir: 'matplotlib/mpl-data'))
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install_data(
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'kpsewhich.lua',
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install_tag: 'data',
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install_dir: py3.get_install_dir(subdir: 'matplotlib/mpl-data'))
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foreach dir : ['fonts', 'images', 'plot_directive', 'sample_data', 'stylelib']
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install_subdir(
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dir,
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install_tag: 'data',
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install_dir: py3.get_install_dir(subdir: 'matplotlib/mpl-data'))
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endforeach

‎tools/generate_matplotlibrc.py‎

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#!/usr/bin/env python
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"""
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Generate matplotlirc for installs.
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If packagers want to change the default backend, insert a `#backend: ...` line.
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Otherwise, use the default `##backend: Agg` which has no effect even after
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decommenting, which allows _auto_backend_sentinel to be filled in at import
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time.
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"""
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import sys
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from pathlib import Path
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if len(sys.argv) < 4:
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raise SystemExit('usage: {sys.argv[0]} <input> <output> <backend>')
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input = Path(sys.argv[1])
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output = Path(sys.argv[2])
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backend = sys.argv[3]
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template_lines = input.read_text(encoding="utf-8").splitlines(True)
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backend_line_idx, = [ # Also asserts that there is a single such line.
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idx for idx, line in enumerate(template_lines)
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if "#backend:" in line]
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template_lines[backend_line_idx] = (
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f"#backend: {backend}\n" if backend else "##backend: Agg\n")
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output.write_text("".join(template_lines), encoding="utf-8")

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