usb-drivers/Win64Depends.sh

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#!/bin/sh -e
# Win64Depends.sh: download dependencies from MSYS2 for cross-compilation.
# Dependencies: AWK, sed, sha256sum, cURL, bsdtar
repository=https://repo.msys2.org/mingw/mingw64/
status() {
echo "$(tput bold)-- $*$(tput sgr0)"
}
dbsync() {
status Fetching repository DB
[ -f db.tsv ] || curl -# "$repository/mingw64.db" | bsdtar -xOf- | awk '
function flush() { print f["%NAME%"] f["%FILENAME%"] f["%DEPENDS%"] }
NR > 1 && $0 == "%FILENAME%" { flush(); for (i in f) delete f[i] }
!/^[^%]/ { field = $0; next } { f[field] = f[field] $0 "\t" }
field == "%SHA256SUM%" { path = "*packages/" f["%FILENAME%"]
sub(/\t$/, "", path); print $0, path > "db.sums" } END { flush() }
' > db.tsv
}
fetch() {
status Resolving "$@"
mkdir -p packages
awk -F'\t' 'function get(name, i, a) {
if (visited[name]++ || !(name in filenames)) return
print filenames[name]; split(deps[name], a); for (i in a) get(a[i])
} BEGIN { while ((getline < "db.tsv") > 0) {
filenames[$1] = $2; deps[$1] = ""; for (i = 3; i <= NF; i++) {
gsub(/[<=>].*/, "", $i); deps[$1] = deps[$1] $i FS }
} for (i = 0; i < ARGC; i++) get(ARGV[i]) }' "$@" | tee db.want | \
while IFS= read -r name
do
status Fetching "$name"
[ -f "packages/$name" ] || curl -#o "packages/$name" "$repository/$name"
done
}
verify() {
status Verifying checksums
sha256sum --ignore-missing --quiet -c db.sums
}
extract() {
status Extracting packages
for subdir in *
do [ -d "$subdir" -a "$subdir" != packages ] && rm -rf -- "$subdir"
done
while IFS= read -r name
do bsdtar -xf "packages/$name" --strip-components 1
done < db.want
}
# This directory name matches the prefix in .pc files, so we don't need to
# modify them (pkgconf has --prefix-variable, but CMake can't pass that option).
mkdir -p mingw64
cd mingw64
dbsync
fetch mingw-w64-x86_64-hidapi mingw-w64-x86_64-libusb
verify
extract
status Success