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#!/usr/bin/env nix-shell
#! nix-shell -i bash -p curl -p nix-prefetch-git -p jq
VERSION_OVERVIEW=https://omahaproxy.appspot.com/all?os=linux
TARGET_CHANNEL=stable
set -eo pipefail
if [ -n "$1" ]; then
v8_version="$1"
shift
else
v8_version=$(curl -s "$VERSION_OVERVIEW" | awk -F "," "\$2 ~ /${TARGET_CHANNEL}/ { print \$11 }")
fi
if [ -n "$1" ]; then
file_path="$1"
else
file_path=default.nix
fi
echo "Using V8 version --> $v8_version"
prefetched=$(nix-prefetch-git --no-deepClone https://chromium.googlesource.com/v8/v8 "refs/tags/${v8_version}")
path=$(echo "$prefetched" | jq -r .path)
sha256=$(echo "$prefetched" | jq -r .sha256)
sed -e "s#\\(version = \\)\"[0-9\.]*\"#\1\"$v8_version\"#" -i ${file_path}
sed -e "/v8Src = fetchgit/ { n; n; n; s/\".*\"/\"${sha256}\"/ }" -i ${file_path}
deps="$path/DEPS"
echo "$deps"
echo "Processing gn"
gn_rev=$(sed -ne "s/.*'gn_version': 'git_revision:\([^']*\).*/\1/p" < "$deps")
gn_sha256=$(nix-prefetch-git --no-deepClone https://gn.googlesource.com/gn "$gn_rev" 2>/dev/null | jq -r .sha256)
sed -e "/gnSrc = fetchgit/ { n; n; s/\".*\"/\"${gn_rev}\"/; n; s/\".*\"/\"${gn_sha256}\"/ }" -i ${file_path}
sed -ne '/" = fetchgit {/ { s/.*"\(.*\)".*/\1/; p }' < ${file_path} | while read dep; do
echo "Processing dependency --> $dep"
escaped_dep=$(echo "$dep" | sed -e 's#/#\\/#g')
dep_rev=$(sed -ne "/'${escaped_dep}':/ { n; s#.*+ '##; s#'.*##; p }" "$deps")
if [ "$dep_rev" = "" ]; then
echo "Failed to resolve dependency $dep, not listed in DEPS file"
rm -f "$deps"
exit 2
fi
repo_url=$(sed -ne "/\"${escaped_dep}\" = fetchgit/ { n; s/.*\"\(.*\)\".*/\1/; s#\${git_url}#https://chromium.googlesource.com#; p }" ${file_path})
sha256=$(nix-prefetch-git --no-deepClone "$repo_url" "$dep_rev" 2>/dev/null | jq -r .sha256)
if [ "$sha256" = "" ]; then
echo "Failed to get sha256 via nix-prefetch-git $repo_url $dep_rev"
rm -f "$deps"
exit 2
fi
sed -e "/\"${escaped_dep}\" = fetchgit/ { n; n; s/\".*\"/\"${dep_rev}\"/; n; s/\".*\"/\"${sha256}\"/ }" -i ${file_path}
done
echo done.
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