Building bitcoin with gitian-builder

00README.md

See https://github.com/bitcoin/bitcoin/tree/master/contrib/gitian-descriptors for latest.

0build-bitcoin.sh

    # First run:
    apt-get install apt-cacher python-vm-builder
    vi /etc/default/apt-cacher # ensure autostart is enabled
    sudo service apt-cacher start

    git clone git://github.com/bitcoin/bitcoin.git
    git clone git://github.com/devrandom/gitian-builder.git
    mkdir gitian-builder/inputs
    wget 'http://miniupnp.tuxfamily.org/files/download.php?file=miniupnpc-1.5.tar.gz' -O gitian-builder/inputs/miniupnpc-1.5.tar.gz
    wget 'http://downloads.sourceforge.net/project/wxwindows/2.9.1/wxWidgets-2.9.1.tar.bz2' -O gitian-builder/inputs/wxWidgets-2.9.1.tar.bz2

    cd gitian-builder
    bin/make-base-vm --arch i386
    bin/make-base-vm --arch amd64
    cd ..

    # To build
    cd bitcoin
    git pull
    cd ../gitian-builder
    git pull
    ./bin/gbuild --commit bitcoin=a452d9ee2dea7e606ec102b0a1a411da4e5e5a91 ../bitcoin/contrib/gitian.yml

bitcoin-download-config.yml

--- 
name: bitcoin
urls:
- https://gitian.org/bitcoin-0.3.21.zip
rss:
- url: http://sourceforge.net/api/file/index/project-id/244765/mtime/desc/limit/100/rss
  xpath: //item/link/text()
  pattern: bitcoin-\d+.\d+.\d+-linux.zip
signers:
  0A82509767C7D4A5D14DA2301AE1D35043E08E54:
    weight: 40
    name: BlueMatt
    key: bluematt
  BF6273FAEF7CC0BA1F562E50989F6B3048A116B5:
    weight: 40
    name: Devrandom
    key: devrandom
  7F2C769E1C70136857067567669476EAAA76785A:
    weight: 40
    name: Sipa
    key: sipa
    keyid: D762373D24904A3E42F33B08B9A408E71DAAC974
  1CDB743D775BDD2CAC0B95E436744B67A1EC02ED:
    weight: 40
    name: tcatm
    key: tcatm
  01CDF4627A3B88AAE4A571C87588242FBE38D3A8:
    weight: 80
    name: "Gavin Andresen"
    key: gavinandresen
minimum_weight: 160

gistfile1.md

Use the Downloader

Links

https://github.com/devrandom/gitian-builder/blob/updater/share/gitian-updater
https://github.com/devrandom/gitian-builder/blob/updater/doc/DOWNLOADER.md

sample zip file:

https://gitian.org/bitcoin-0.3.21.zip

Running

gitian-updater --config bitcoin-download-config.yml --dest /tmp/bitcoin

Alternatively, embed the configuration in the script

gitian-updater --config bitcoin-download-config.yml -m bitcoin-updater

then run the result:

./bitcoin-updater --dest /tmp/bitcoin

Expected output

Downloading: bitcoin-0.3.21.zip Bytes: 11624355
   11665408  [100.35%]
Some of the files were not checksummed:
   src/obj/nogui/.gitignore
   src/obj/.gitignore
   src/cryptopp/obj/.gitignore
   src/.gitignore
Signatures from:
    Sipa : weight 20
    Devrandom : weight 20
    BlueMatt : weight 40
    ...
Successful with signature weight 80

For Bitcoin release 0.3.21. The output ends up in result/bitcoin-res.yml .

See https://github.com/devrandom/bitcoin-release for signed results.

Disassembly of section .text:

@@ -2612,10 +2612,12 @@
2d1b: 0f 84 af 00 00 00 je 0x2dd0
2d21: 4c 8b 7f 08 mov 0x8(%rdi),%r15
2d25: 31 db xor %ebx,%ebx

• 2d27: eb 0a jmp 0x2d33
• 2d29: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
• 2d30: 4d 89 f7 mov %r14,%r15
• 2d33: 49 39 df cmp %rbx,%r15
• 2d27: 4c 39 fb cmp %r15,%rbx
• 2d2a: 72 0c jb 0x2d38
• 2d2c: eb 42 jmp 0x2d70
• 2d2e: 66 90 nop
• 2d30: 49 39 de cmp %rbx,%r14
• 2d33: 4d 89 f7 mov %r14,%r15
  2d36: 76 38 jbe 0x2d70
  2d38: 4d 8d 34 1f lea (%r15,%rbx,1),%r14
  2d3c: 4c 89 e7 mov %r12,%rdi

This is obsolete. See https://github.com/bitcoin/bitcoin/tree/master/contrib/gitian-descriptors

@devrandom this link appears obsolete as well (404)

I think Bitcoin Core moved to Guix based builds

I believe so too, but found this gist linked from https://gitian.org/.