From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Sun, 16 Jun 2019 02:34:10 +0200
Subject: [PATCH] gnu: dstat: Fix crash when specifying a delay.

Taken verbatim from a pull request[0] that will never be merged.

[0]: https://github.com/dagwieers/dstat/pull/167

From 220a785321b13b6df92a536080aca6ef1cb644ad Mon Sep 17 00:00:00 2001
From: Falko Goettsch <falko@uw.edu>
Date: Mon, 11 Mar 2019 20:12:49 -0700
Subject: [PATCH] Fixed bug when specifying a delay

The division in the 'loop' calculation in perform() was returning floating point values
after the migration to Python 3, rather than rounding down. Changed to floor division.

I think the floating point values kept 'loop == 0' from ever being
true and the variables inside that conditional were never initialized,
causing the following error when a delay other than 1 was specified:

You did not select any stats, using -cdngy by default.
Traceback (most recent call last):
  File "/home/falko/repos/dstat/dstat", line 2825, in <module>
    main()
  File "/home/falko/repos/dstat/dstat", line 2684, in main
    scheduler.run()
  File "/home/falko/.conda/envs/python3/lib/python3.7/sched.py", line 151, in run
    action(*argument, **kwargs)
  File "/home/falko/repos/dstat/dstat", line 2729, in perform
    oldcols = cols
NameError: name 'cols' is not defined
---
 dstat | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dstat b/dstat
index 9359965..3b4980f 100755
--- a/dstat
+++ b/dstat
@@ -2697,7 +2697,7 @@ def perform(update):
 
         starttime = time.time()
 
-        loop = (update - 1 + op.delay) / op.delay
+        loop = (update - 1 + op.delay) // op.delay
         step = ((update - 1) % op.delay) + 1
 
         ### Get current time (may be different from schedule) for debugging
on>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
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</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=f38d8e050e8ff2bf00dd6f8b6f3aaf638663b9bb'>root</a>/<a href='/guix/log/tests?id=f38d8e050e8ff2bf00dd6f8b6f3aaf638663b9bb'>tests</a>/<a href='/guix/log/tests/guix-git-authenticate.sh?id=f38d8e050e8ff2bf00dd6f8b6f3aaf638663b9bb'>guix-git-authenticate.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-git-authenticate.sh?id=f38d8e050e8ff2bf00dd6f8b6f3aaf638663b9bb&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-09-28 21:06:36 -0500'>2020-09-28</span></td><td><a href='/guix/commit/tests/guix-git-authenticate.sh?id=d8934360d2453a403b5433e71d09188e4ed23b57'>tests: Simplify shell exit status negation;</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-lint.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh: Use the shell '!' keyword to negate command exit status
in place of 'if ...; then false; else true; fi'
</span></span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2020-07-11 12:33:01 +0200'>2020-07-11</span></td><td><a href='/guix/commit/tests/guix-git-authenticate.sh?id=a98712785e0b042a290420fd74e5a4a5da4fc68f'>Add 'guix git authenticate'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/git.scm, guix/scripts/git/authenticate.scm,
tests/guix-git-authenticate.sh: New files.
* Makefile.am (MODULES): Add the *.scm files.
(SH_TESTS): Add 'tests/guix-git-authenticate.sh'.
* doc/guix.texi (Channels)[Specifying Channel Authorizations]: Mention
'guix git authenticate'.
(Invoking guix git authenticate): New node.
* po/guix/POTFILES.in: Add 'guix/scripts/git.scm' and
'guix/scripts/git/authenticate.scm'.
</span></span></td><td>Ludovic Courtès</td></tr>