mirror-ghostty/nix/build-support/update-mirror.sh

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#!/bin/sh
#
# This script generates a directory that can be uploaded to blob
# storage to mirror our dependencies. The dependencies are unmodified
# so their checksum and content hashes will match.
set -e # Exit immediately if a command exits with a non-zero status
SCRIPT_PATH="$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd)"
INPUT_FILE="$SCRIPT_PATH/../../build.zig.zon2json-lock"
OUTPUT_DIR="blob"
# Ensure the output directory exists
mkdir -p "$OUTPUT_DIR"
# Use jq to iterate over the JSON and download files
jq -r 'to_entries[] | "\(.key) \(.value.name) \(.value.url)"' "$INPUT_FILE" | while read -r key name url; do
# Skip URLs that don't start with http(s). They aren't necessary for
# our mirror.
if ! echo "$url" | grep -Eq "^https?://"; then
continue
fi
# Extract the file extension from the URL
extension=$(echo "$url" | grep -oE '\.[a-z0-9]+(\.[a-z0-9]+)?$')
filename="${name}-${key}${extension}"
echo "$url -> $filename"
curl -L -o "$OUTPUT_DIR/$filename" "$url"
done