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Hash Replacement Utility

This utility allows to replace hash values with more convenient entities - words, making it easier to work with them in logs and other text outputs. It supports both long 0x5064528fea22246df948814b11da057079fc02268a6321172392e36319ff652d and short 0x5064…652d versions of hashes. The tool also recognizes Imported debug logs and replaces block hashes with BLOCKXXX strings, where XXX is the block number. Forks are supported.

Features

  • Replaces long and short hash values with words for better readability.
  • Supports specific replacements for recognized patterns, such as Imported debug logs.
  • outputs a graphviz file with blocks tree

Examples

Block numbers

before:

substrate: 🏆 Imported #1 (0xdf18…c4ac → 0x0626…a11a)    
txpool: maintain: txs:(0, 0) views:[1;[(1, 0, 0)]] event:NewBestBlock { hash: 0x0626c20236b05022c206363171118c7881fc8b0cd8d0b4f6d155f3dc6919a11a, tree_route: None }  took:122.731µs    
txpool: maintain: txs:(0, 0) views:[1;[(2, 0, 0)]] event:NewBestBlock { hash: 0x028dd13e51d2506717ccd5805ba01d55b5075638466a9fb9cc16b6b4812d8955, tree_route: None }  took:178.051µs    
substrate: 🏆 Imported #2 (0x0626…a11a → 0x028d…8955)    
txpool: maintain: txs:(0, 0) views:[1;[(3, 0, 0)]] event:NewBestBlock { hash: 0x76846df7d3378038af3ef3fe6a59f594a44f040b7b11e514426b9a6d8e83949b, tree_route: None }  took:132.931µs

after:

substrate: 🏆 Imported #1 (DIPLEX → BLOCK1)    
txpool: maintain: txs:(0, 0) views:[1;[(1, 0, 0)]] event:NewBestBlock { hash: BLOCK1, tree_route: None }  took:122.731µs    
txpool: maintain: txs:(0, 0) views:[1;[(2, 0, 0)]] event:NewBestBlock { hash: BLOCK2, tree_route: None }  took:178.051µs    
substrate: 🏆 Imported #2 (BLOCK1 → BLOCK2)    
txpool: maintain: txs:(0, 0) views:[1;[(3, 0, 0)]] event:NewBestBlock { hash: BLOCK3, tree_route: None }  took:132.931µs

Hashes

before:

txpool: [0x5064528fea22246df948814b11da057079fc02268a6321172392e36319ff652d] ValidatedPool::submit_at
txpool: [0xd4418332fbea4124a743395aebfc4000829a7bdcd7afac0016b1c03106c56960] ValidatedPool::submit_at
txpool: [0x5869c9a4f7bace630f90928e50dc27653a2fd996abcd9e57a6b9af8642ea21d2] ValidatedPool::submit_at
txpool: [0xf9b677735803998fcce33eca325008f884a69dd036f0b5c1dcd8fb65bacb8cba] ValidatedPool::submit_at
sc_basic_authorship::basic_authorship: 🎁 Prepared block for proposing at ...  [0x5064…652d, 0xd441…6960, 0x5869…21d2, 0xf9b6…8cba]"

after:

txpool: [ABEL] ValidatedPool::submit_at
txpool: [FADE] ValidatedPool::submit_at
txpool: [BURN] ValidatedPool::submit_at
txpool: [STAR] ValidatedPool::submit_at
sc_basic_authorship::basic_authorship: 🎁 Prepared block for proposing at ...  [ABEL, FADE, BURN, STAR]"

Usage

usage: dehash.py [-h] [-b] file

Replace hashes in the log file with words.

positional arguments:
  file          Path to the log file.

options:
  -h, --help    show this help message and exit
  -b, --backup  Create a backup of the original file.

Example:

dehash.py log.txt

Testing

To run all tests execute:

python3 ./test_dehash.py

To run some tests only:

python3 ./test_dehash.py TestScript.test_filter_and_findall
python3 ./test_dehash.py TestScript2