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std.cache_hash: bump up the base64 digest len to avoid '=='

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Andrew Kelley 2020-09-12 00:50:37 -07:00
parent c903dad915
commit 8374be1a1c
1 changed files with 3 additions and 2 deletions
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lib/std/cache_hash.zig
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@ -16,8 +16,9 @@ const Allocator = std.mem.Allocator;
const base64_encoder = fs.base64_encoder;
const base64_decoder = fs.base64_decoder;
/// This is 128 bits - Even with 2^54 cache entries, the probably of a collision would be under 10^-6
const BIN_DIGEST_LEN = 16;
/// 16 would be 128 bits - Even with 2^54 cache entries, the probably of a collision would be under 10^-6
/// We round up to 18 to avoid the `==` padding after base64 encoding.
const BIN_DIGEST_LEN = 18;
const BASE64_DIGEST_LEN = base64.Base64Encoder.calcSize(BIN_DIGEST_LEN);
const MANIFEST_FILE_SIZE_MAX = 50 * 1024 * 1024;