2021-09-08_-_mc_issue_with_sshfs

anonymous@undisclosed.example.com (Anonymous) — Wed, 08 Sep 2021 19:31:34 +0000

2021-09-08 - mc issue with sshfs

recenty i've dist-uprgaded my OS to debian:11 (bullseye). it went VERY smotthly – pretty much no issues. the only think i found so far is an interesting bug in mc – recent mc cannot browse sshfs-mounted filesystem. it appears to be empty, even though you can browse it perfectly fine with command line tools, GUI tools, etc…

it's also interesting how easily and nicely it can be reproduced and checked with docker!

mount a direcotry with sshfs user, say /mnt/stuff and just do:

docker run -it --rm -v /mnt/stuff:/mnt:ro debian:11
apt update
apt install -y mc
mc /mnt

..and see how it fails.

now do the same thing, with only debian version changed:

docker run -it --rm -v /mnt/stuff:/mnt:ro debian:10
apt update
apt install -y mc
mc /mnt

…and it works just fine! the funny thing is that this is just a minor version difference for mc, namely: 2.8.22 vs. 2.8.26.

i hope this will get fixed fast, as i tend to use mc + sshfs combination a lot.

2021-09-08_-_shoe_color

anonymous@undisclosed.example.com (Anonymous) — Wed, 08 Sep 2021 20:02:52 +0000

2021-09-08 - shoe color

shoe colors? seriously? yes… but obviously not because of a shoe. interestingly, not quite about a color either… so let's start.

some time ago i was asked by a friend of mine, what is the collor of this shoe:

turns out that this was a fairly common photo sent around on the internet, around 1-2yrs ago.

it's pink to me. but it turns out that many ppl see it as gray, instead. so it got me thinking…

1st approach

my 1st guess was that it's the same thing as with blue and green colors. the wavelengths of these two colors are next to each other, so around midway in between “perfect blue” and “perfect green”, some ppl see “still green” yet others already interpret it as “already blue”. it's not so obvious however with gray and pink (not to mention shades), as these are not monochromatic.

2nd approach

these must be close to each other in color space, then! so let's see how our pink-ish and grey look like:

“silver pink” = 196, 174, 173
“gray” = 128, 128, 128

ok – not exactly the same, but also not super far away…

let's give it a shot in another color model, namely HSL/HSV:

“silver pink” = 3deg, 12%, 77%
“gray” = 0deg, 0%, 50%

now the proximty can be seen much better! only the last parameter is off by around 1/4.