44 lines
2 KiB
Bash
44 lines
2 KiB
Bash
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#!/usr/bin/env bash
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# libxml2: the docs split assumes the docs were built.
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#
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# mv: cannot stat '<pkgdir>/usr/share/doc': No such file or directory
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#
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# package_libxml2() ends on
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#
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# mv "$pkgdir"/usr/share/doc -t doc/usr/share
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#
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# which feeds the libxml2-docs sub-package. On the build HOST the docs exist,
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# because doxygen is installed there. Inside the stage-2 chroot they do not:
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# that chroot has none of Arch's optional documentation tools, and
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# build-stage2.sh wraps arch-meson with --auto-features auto precisely so a
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# missing tool skips a feature instead of failing the build. The skipped
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# feature then trips the split.
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#
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# FOURTH TIME THIS SHAPE APPEARS -- pam's PDFs, e2fsprogs' fuse2fs, cmake's
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# emacs byte-compilation, and now this. A failure on the last line of
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# package(), after a completely successful compile, naming a path rather than
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# a reason. It has never once been a broken build.
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#
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# The move is made conditional rather than removed, because on the host the
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# docs DO exist and belong in their own package. And libxml2-docs stays in
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# pkgname: makepkg is content to produce an empty sub-package, and dropping it
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# would diverge from Arch for a reason that only holds in one of the two
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# stages.
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set -euo pipefail
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python3 - <<'ZZPY'
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import io
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s = io.open("PKGBUILD", encoding="utf-8").read()
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old = ' mv "$pkgdir"/usr/share/doc -t doc/usr/share\n'
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assert s.count(old) == 1, "libxml2: the docs move is not in the expected form"
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new = (' # Present when doxygen was available, absent in the stage-2 chroot, which\n'
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' # has no documentation tools and builds with --auto-features auto.\n'
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' if [ -d "$pkgdir"/usr/share/doc ]; then\n'
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' mv "$pkgdir"/usr/share/doc -t doc/usr/share\n'
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' fi\n')
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s = s.replace(old, new, 1)
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io.open("PKGBUILD", "w", encoding="utf-8").write(s)
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ZZPY
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grep -q 'has no documentation tools' PKGBUILD || {
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echo "libxml2: the docs move was not made conditional" >&2; exit 1; }
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echo "libxml2: docs split tolerates a build without doxygen"
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