71 lines
1.7 KiB
Python
71 lines
1.7 KiB
Python
"Rule to copy mathjax subset from node_modules to vendor folder."
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_exclude = [
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"mathmaps_ie.js",
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]
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_include = [
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"es5/tex-chtml.js",
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"es5/input/tex/extensions",
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"es5/output/chtml/fonts/woff-v2",
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"es5/a11y",
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"es5/sre",
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]
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_unwanted_prefix = "external/npm/node_modules/mathjax/es5/"
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def _copy_files(ctx, files):
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cmds = []
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inputs = []
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outputs = []
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for (src, dst) in files:
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inputs.append(src)
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dst = ctx.actions.declare_file(dst)
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outputs.append(dst)
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cmds.append("cp -f {} {}".format(src.path, dst.path))
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shell_fname = ctx.label.name + "-cp.sh"
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shell_file = ctx.actions.declare_file(shell_fname)
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ctx.actions.write(
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output = shell_file,
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content = "#!/bin/bash\nset -e\n" + "\n".join(cmds),
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is_executable = True,
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)
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ctx.actions.run(
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inputs = inputs,
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executable = "bash",
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tools = [shell_file],
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arguments = [shell_file.path],
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outputs = outputs,
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mnemonic = "CopyFile",
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use_default_shell_env = True,
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)
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return [DefaultInfo(files = depset(outputs))]
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def _copy_mathjax_impl(ctx):
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wanted = []
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for f in ctx.attr.mathjax.files.to_list():
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path = f.path
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want = True
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for substr in _exclude:
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if substr in path:
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want = False
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continue
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if not want:
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continue
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for substr in _include:
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if substr in path:
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output = path.replace(_unwanted_prefix, "")
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wanted.append((f, output))
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return _copy_files(ctx, wanted)
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copy_mathjax = rule(
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implementation = _copy_mathjax_impl,
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attrs = {
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"mathjax": attr.label(default = "@npm//mathjax:mathjax__files"),
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},
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)
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