48 lines
2.4 KiB
Bash
48 lines
2.4 KiB
Bash
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#!/usr/bin/env bash
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# autoconf-archive: take the patch from a mirror savannah's cgit will serve.
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#
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# curl: (52) Empty reply from server
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# ==> ERROR: Failure while downloading
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# https://cgit.git.savannah.gnu.org/cgit/autoconf-archive.git/patch/?id=241f7ae...
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#
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# The tarball comes from ftpmirror.gnu.org and arrives fine. What fails is a
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# single patch fetched from savannah's cgit /patch/?id= endpoint, which returns
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# nothing at all -- measured, not assumed:
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#
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# savannah /patch/?id= (no response)
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# github /commit/.patch 200, 2463 bytes
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#
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# savannah itself is up (its root answers 302); it is that endpoint, which cgit
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# generates on demand and rate-limits.
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#
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# The mirror is asked for THE SAME COMMIT, by its full hash, so this changes
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# where the bytes come from and not which bytes they are -- the substantive
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# difference from replacing a source with a different version of itself. GitHub
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# renders `git format-patch` output where cgit renders its own; both are what
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# `patch` expects, and the build fails loudly if that were untrue.
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#
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# WHY NOT DROP THE PATCH. It is 0001_fix_AX_CXX_COMPILE_STDCXX.patch, a fix to a
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# macro this port needs -- tpm2-tss stopped on a missing AX_* macro, which is why
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# autoconf-archive is in the list at all.
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set -euo pipefail
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python3 - <<'ZZPY'
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import io, re
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s = io.open("PKGBUILD", encoding="utf-8").read()
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old = "https://cgit.git.savannah.gnu.org/cgit/autoconf-archive.git/patch/?id="
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assert s.count(old) == 1, "autoconf-archive: expected one cgit patch URL, got %d" % s.count(old)
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# The commit hash follows the URL, up to the closing quote. Reused verbatim: the
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# point of the substitution is that the content is identical.
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m = re.search(re.escape(old) + r"([0-9a-f]{40})", s)
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assert m, "autoconf-archive: no 40-character commit hash after the cgit URL"
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sha = m.group(1)
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s = s.replace(old + sha,
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"https://github.com/autoconf-archive/autoconf-archive/commit/%s.patch" % sha, 1)
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io.open("PKGBUILD", "w", encoding="utf-8").write(s)
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print(" patch commit: %s" % sha[:12])
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ZZPY
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grep -q "cgit.git.savannah.gnu.org" PKGBUILD && {
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echo "autoconf-archive: a cgit URL survived" >&2; exit 1; }
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grep -qE "github.com/autoconf-archive/autoconf-archive/commit/[0-9a-f]{40}\.patch" PKGBUILD || {
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echo "autoconf-archive: the mirror URL is malformed" >&2; exit 1; }
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echo "autoconf-archive: patch taken from the git mirror (same commit)"
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