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Reproducible Builds: don't embed timestamps in info pages - #780

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shirok merged 1 commit into
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kpcyrd:repro
Aug 25, 2021
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Reproducible Builds: don't embed timestamps in info pages#780
shirok merged 1 commit into
shirok:masterfrom
kpcyrd:repro

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@kpcyrd

@kpcyrd kpcyrd commented Aug 25, 2021

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This resolves an issue with reproducible builds for Arch Linux (diffoscope), gzip -n disables these timestamps:

│ ├── usr/share/info/gauche-refe.info-1.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-1", last modified: Thu May 27 14:34:04 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-1", last modified: Thu Aug 12 18:05:06 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-10.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-10", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-10", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-11.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-11", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-11", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-12.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-12", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-12", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-2.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-2", last modified: Thu May 27 14:34:06 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-2", last modified: Thu Aug 12 18:05:07 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-3.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-3", last modified: Thu May 27 14:34:07 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-3", last modified: Thu Aug 12 18:05:08 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-4.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-4", last modified: Thu May 27 14:34:08 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-4", last modified: Thu Aug 12 18:05:09 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-5.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-5", last modified: Thu May 27 14:34:09 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-5", last modified: Thu Aug 12 18:05:10 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-6.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-6", last modified: Thu May 27 14:34:10 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-6", last modified: Thu Aug 12 18:05:11 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-7.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-7", last modified: Thu May 27 14:34:12 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-7", last modified: Thu Aug 12 18:05:12 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-8.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-8", last modified: Thu May 27 14:34:13 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-8", last modified: Thu Aug 12 18:05:13 2021, from Unix
│ ├── usr/share/info/gauche-refe.info-9.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info-9", last modified: Thu May 27 14:34:15 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info-9", last modified: Thu Aug 12 18:05:14 2021, from Unix
│ ├── usr/share/info/gauche-refe.info.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refe.info", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refe.info", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-1.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-1", last modified: Thu May 27 14:34:04 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-1", last modified: Thu Aug 12 18:05:06 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-10.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-10", last modified: Thu May 27 14:34:13 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-10", last modified: Thu Aug 12 18:05:13 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-11.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-11", last modified: Thu May 27 14:34:14 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-11", last modified: Thu Aug 12 18:05:14 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-12.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-12", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-12", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-13.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-13", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-13", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-14.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-14", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-14", last modified: Thu Aug 12 18:05:15 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-2.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-2", last modified: Thu May 27 14:34:05 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-2", last modified: Thu Aug 12 18:05:07 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-3.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-3", last modified: Thu May 27 14:34:06 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-3", last modified: Thu Aug 12 18:05:07 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-4.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-4", last modified: Thu May 27 14:34:07 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-4", last modified: Thu Aug 12 18:05:08 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-5.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-5", last modified: Thu May 27 14:34:08 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-5", last modified: Thu Aug 12 18:05:09 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-6.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-6", last modified: Thu May 27 14:34:09 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-6", last modified: Thu Aug 12 18:05:09 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-7.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-7", last modified: Thu May 27 14:34:10 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-7", last modified: Thu Aug 12 18:05:10 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-8.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-8", last modified: Thu May 27 14:34:11 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-8", last modified: Thu Aug 12 18:05:11 2021, from Unix
│ ├── usr/share/info/gauche-refj.info-9.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info-9", last modified: Thu May 27 14:34:12 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info-9", last modified: Thu Aug 12 18:05:12 2021, from Unix
│ ├── usr/share/info/gauche-refj.info.gz
│ │ ├── filetype from file(1)
│ │ │ @@ -1 +1 @@
│ │ │ -gzip compressed data, was "gauche-refj.info", last modified: Thu May 27 14:34:16 2021, from Unix
│ │ │ +gzip compressed data, was "gauche-refj.info", last modified: Thu Aug 12 18:05:15 2021, from Unix

Thanks!

@shirok

shirok commented Aug 25, 2021

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Ah, didn't realize gzip embeds timestamp by default. Thanks.

@shirok
shirok merged commit 30fd36e into shirok:master Aug 25, 2021
@kpcyrd
kpcyrd deleted the repro branch August 25, 2021 17:30
@kpcyrd

kpcyrd commented Aug 25, 2021

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No problem, thanks for merging this so quickly! ❤️

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@kpcyrd @shirok