55 lines
1.5 KiB
Bash
55 lines
1.5 KiB
Bash
#!/usr/bin/env bash
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TARGET=aarch64-linux-android
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export PREFIX=/tmp/"$TARGET"-emerald
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export CFLAGS="-O3"
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export CPPFLAGS="$CFLAGS"
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export CXXFLAGS="$CFLAGS -static-libgcc -static-libstdc++"
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export LDFLAGS="-s -w"
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export CFLAGS_FOR_TARGET="$CFLAGS"
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export CPPFLAGS_FOR_TARGET="$CFLAGS"
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export CXXFLAGS_FOR_TARGET="$CFLAGS"
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export LDFLAGS_FOR_TARGET="$LDFLAGS"
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download() {
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if [ $# != 3 ]; then
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echo "download(): Invalid arguments - expected \$URL \$DESTINATION \$CHECKSUM"
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return 1
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fi
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local URL="$1"
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local DESTINATION="$2"
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local CHECKSUM="$3"
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if [ -f "$DESTINATION" ] && [ "$CHECKSUM" != "SKIP_CHECKSUM" ]; then
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# Keep existing file if checksum matches.
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local EXISTING_CHECKSUM
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EXISTING_CHECKSUM=$(sha256sum "$DESTINATION" | cut -f 1 -d ' ')
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if [ "$EXISTING_CHECKSUM" = "$CHECKSUM" ]; then return; fi
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fi
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local TMPFILE
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TMPFILE=$(mktemp "${TMPDIR:-/tmp}/download.emerald-dl.XXXXXXXXX")
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echo "Downloading ${URL}"
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if curl --fail --retry 20 --retry-connrefused --retry-delay 30 --location --output "$TMPFILE" "$URL"; then
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local ACTUAL_CHECKSUM
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ACTUAL_CHECKSUM=$(sha256sum "$TMPFILE" | cut -f 1 -d ' ')
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if [ "$CHECKSUM" != "SKIP_CHECKSUM" ]; then
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if [ "$CHECKSUM" != "$ACTUAL_CHECKSUM" ]; then
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printf >&2 "Wrong checksum for %s:\nExpected: %s\nFound: %s\n" \
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"$URL" "$ACTUAL_CHECKSUM" "$CHECKSUM"
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return 1
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fi
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elif [ -z "$CHECKSUM" ]; then
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printf "WARNING: No checksum check for %s:\nExpected: %s\n" \
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"$URL" "$ACTUAL_CHECKSUM"
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fi
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mv "$TMPFILE" "$DESTINATION"
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return 0
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fi
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echo "Failed to download $URL" >&2
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return 1
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}
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