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Merge #20015: doc: Added default signet config for linearize script

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8a4dcda414fcf8281d8b3b79039b735c0a7d0d4c doc: Added default signet config for linearize script (gr0kchain)

Pull request description:

  Updated the example-linearize.cfg file to include support for the signet chain network config which is used by the ./linearize-data.py

  Problem:
  Without the signet magic, genesis hash and path config, the linearize-data.py script cannot generate a bootstrap.dat file.

  Example:

  ```
  ./linearize-data.py ./linearize.cfg
  Read 4776 hashes
  Genesis block not found in hashlist
  ```

  Solution:

  Added netmagic, genesis and input example parameters to file. Netmagic in terms of signet is derived from the signet-challenge and not static as with other networks. The provided signet magic is based on the default public signet.

  Resolution

  ```
  ./linearize-hashes.py ./linearize.cfg > ./hashlist.txt
  ./linearize-data.py ./linearize.cfg
  $ ./linearize-data.py ./linearize.cfg
  Read 4776 hashes
  Input file /Users/gr0kchain/.bitcoin/signet/blocks/blk00000.dat
  Output file /Users/gr0kchain/Downloads/bootstrap.dat
  1000 blocks scanned, 1000 blocks written (of 4776, 20.9% complete)
  2000 blocks scanned, 2000 blocks written (of 4776, 41.9% complete)
  3011 blocks scanned, 3000 blocks written (of 4776, 62.8% complete)
  4010 blocks scanned, 4000 blocks written (of 4776, 83.8% complete)
  Done (4776 blocks written)
  ```

ACKs for top commit:
  laanwj:
    Tested ACK 8a4dcda414fcf8281d8b3b79039b735c0a7d0d4c

Tree-SHA512: ad4d330358cf67e7424fb1d97ca828c28ca2758102e45747f4059c11a8acce801162da024a20cfb892f997fd4c3f4d5af988d1ca67c74efa78bf7d4ed27dd421
This commit is contained in:
Wladimir J. van der Laan 2020-09-29 16:11:20 +02:00
commit de4b7f25ac
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GPG Key ID: 1E4AED62986CD25D
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contrib/linearize/example-linearize.cfg
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@ -13,6 +13,9 @@ port=8332
#regtest default
#port=18443
#signet default
#port=38332
# bootstrap.dat hashlist settings (linearize-hashes)
max_height=313000
@ -33,6 +36,11 @@ input=/home/example/.bitcoin/blocks
#genesis=0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206
#input=/home/example/.bitcoin/regtest/blocks
# signet
#netmagic=0a03cf40
#genesis=00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6
#input=/home/example/.bitcoin/signet/blocks
# "output" option causes blockchain files to be written to the given location,
# with "output_file" ignored. If not used, "output_file" is used instead.
# output=/home/example/blockchain_directory