archlinux-s390x/patches/pkgbuild/jsoncpp.sh

#!/usr/bin/env bash
# jsoncpp: no doxygen build.
#
#   File "doxybuild.py", line 82, in assert_is_exe
#     raise Exception('path is empty.')
#
# A python traceback, which is what makes this one hard to read: doxybuild.py was
# handed an empty doxygen path because there is no doxygen, and it reports that
# as a path problem. build() runs it after the compile has already finished.
set -euo pipefail
python3 - <<'ZZPY'
import io, re
lines = io.open("PKGBUILD", encoding="utf-8").read().split("\n")
# The call spans several lines: find it and drop through its last continuation.
hit = [i for i, l in enumerate(lines) if re.search(r"python doxybuild\.py", l)]
assert len(hit) == 1, "jsoncpp: expected one doxybuild call, got %d" % len(hit)
i = hit[0]
j = i
while lines[j].rstrip().endswith("\\"):
    j += 1
del lines[i:j + 1]
# The `echo "Building docs..."` above it would now announce nothing.
if i > 0 and "Building docs" in lines[i - 1]:
    del lines[i - 1]
io.open("PKGBUILD", "w", encoding="utf-8").write("\n".join(lines))
ZZPY
grep -q "doxybuild" PKGBUILD && { echo "jsoncpp: doxybuild survived" >&2; exit 1; }
echo "jsoncpp: doxygen build removed"

# --- and the html it no longer generates --------------------------------------
#
#   cp: cannot stat 'dist/doxygen/jsoncpp-api-html-1.9.6': No such file or dir
#
# FOURTEENTH time, and the sixth of my own making. Removing the doxybuild.py call
# above stopped the API html being generated, and package() still copies the
# directory it would have produced. The name carries the version, so the path is
# not even greppable without knowing pkgver.
#
# By now the rule is mechanical and worth stating as a procedure rather than a
# lesson: after removing a documentation build, grep package() for the OUTPUT
# directory name, not for the tool. The tool appears in build(); the path appears
# in package(), and it is the path that fails.
set -euo pipefail
python3 - <<'ZZPY'
import io, re
lines = io.open("PKGBUILD", encoding="utf-8").read().split("\n")
hit = [i for i, l in enumerate(lines) if "doxygen" in l and re.match(r"^[ \t]*(cp|mv|install) ", l)]
assert len(hit) >= 1, "jsoncpp: no doxygen output copy found in package()"
for i in reversed(hit):
    j = i
    while lines[j].rstrip().endswith("\\"):
        j += 1
    ind = re.match(r"^[ \t]*", lines[i]).group(0)
    lines[i:j + 1] = [ind + ": # the doxygen html is not generated (no doxygen here)."]
io.open("PKGBUILD", "w", encoding="utf-8").write("\n".join(lines))
ZZPY
grep -qE "^[[:space:]]*(cp|mv|install) .*doxygen" PKGBUILD && {
    echo "jsoncpp: a doxygen output copy survived" >&2; exit 1; }
echo "jsoncpp: doxygen html copy removed"