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Make it possible to run Bundix without Nix tools in some cases #116

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Make it possible to run Bundix without Nix tools in some cases #116

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8 changes: 7 additions & 1 deletion lib/bundix/source.rb
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
require 'digest/sha2'

class Bundix
class Fetcher
def sh(*args, &block)
Expand Down Expand Up @@ -111,7 +113,11 @@ def fetch_local_hash(spec)
spec.source.caches.each do |cache|
path = File.join(cache, "#{spec.full_name}.gem")
next unless File.file?(path)
hash = nix_prefetch_url(path)&.[](SHA256_32)
hash = Digest::SHA256.file(path).digest.bytes
.reverse
.reduce(0) {|n, b| (n << 8) + b }
.digits(32).map {|d| "0123456789abcdfghijklmnpqrsvwxyz"[d] }.join.ljust(52, '0')
.reverse
return format_hash(hash) if hash
end

Expand Down