Files
docker-tachidesk/scripts/kcef_download.sh
Constantin Piber 9844dbcde3 Download JCEF at docker build step (#132)
* Add `LD_PRELOAD` to startup script

Closes #131

* Script to download and extract a JCEF release

Closely mirrors what KCEF does, but written in glorious AWK

* Call kcef_download and link downloaded JCEF where Suwayomi expects it

The script downloads JCEF into /opt. Link this folder at runtime into
the data folder where Suwayomi expects it. This allows us to easily
bundle the predownloaded release without modifying Suwayomi startup.
Move `LD_PRELOAD` down a bit to avoid warnings about preloading
libcef.so before the symlink exists.

* Add KCEF url to workflow to embed JCEF into container
2025-06-20 12:38:23 -04:00

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#!/bin/sh
set -e
url="$1"
arch="$2"
installdir="${3:-/opt/kcef/jcef}"
echo "Will try to download matching KCEF to $installdir, arch=$arch, api url=$url"
if [ -d "$installdir" ] && [ -f "$installdir/install.lock" ]; then
echo "JCEF already downloaded to $installdir, nothing to do"
exit 0
fi
if [ -z "$url" ]; then
echo "Not downloading KCEF since no URL specified"
exit 0
fi
arpath=/tmp/kcef/jcef.tar.gz
expath=/tmp/kcef/jcef
mkdir -p "$expath"
if [ ! -f "$arpath" ]; then
body="`curl -# -H 'accept: application/vnd.github+json' "$url" | jq -r '.body'`"
archive="`echo "$body" | gawk -F'|' '
function compare_sdk(i1, v1, i2, v2) {
# sort sdks last (https://github.com/DatL4g/KCEF/blob/0665269b7d6a91b0ee187f4432bb5be5ca41a112/kcef/src/main/kotlin/dev/datlag/kcef/KCEFBuilder.kt#L743-L755)
if (v1 ~ /sdk/ && v2 ~ /sdk/) return 0;
if (v1 ~ /sdk/) return 1;
if (v2 ~ /sdk/) return -1;
return 0;
}
BEGIN {
# ensure urls is an array
delete urls[0];
# parse os/arch tuple
match("'"$arch"'", /(.*)\/(.*)/, a);
os=a[1];
arch=a[2];
if (arch == "amd64") arch="x64";
if (arch == "arm64") arch="aarch64";
}
# for each line, check that the third table column contains a url and if so, extract it
# also need to check that it contains JCEF and matches the os/arch tuple
match($4, /(https?:\/\/|www.)[-a-zA-Z0-9+&@#\/%?=~_|!:.;]*[-a-zA-Z0-9+&@#/%=~_|]/, m) {
# if so, push to the urls array; there is no push function, so do this cursed construction
# arrays by convention start at 1, so do that
if (m[0] ~ /jcef/ && m[0] ~ os && m[0] ~ arch && m[0] ~ /\.tar\.gz$/) urls[length(urls)+1] = m[0];
}
END {
# now make sure sdk is sorted last, since we dont actually need the full sdk
asort(urls, sorted, "compare_sdk");
for (x in sorted) print sorted[x];
}
' | head -n1`"
if [ -z "$archive" ]; then
echo "No suitable archive found on release page, so not downloading"
exit 0
fi
echo "Found suitable JCEF release: $archive"
curl -# -L -H 'accept: application/x-tar' -o "$arpath" "$archive"
fi
set -xe
tar -C "$expath" -xf "$arpath"
libfolder="`find "$expath" -type d -name lib`"
if [ -z "$libfolder" ]; then
echo "lib folder not found in extracted archive, aborting"
rm -rf /tmp/kcef
exit 0
fi
mkdir -p "$installdir"
rmdir "$installdir" # we abuse -p to make sure all parent directories are created, then delete the actual target, since mv would move the libfolder inside otherwise
mv "$libfolder" "$installdir"
chmod -R a+x "$installdir"
touch "$installdir/install.lock"
rm -rf /tmp/kcef