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[Ariel Faigon <ubuntu@xxxxxxxxxx>]

Public bug reported:

This is a bug report on 'watch' from procps.

Essentially, it doesn't seem like -c/--color (ANSI color sequences
support) works.

Here's how to reproduce:

'man watch says':

      -c, --color
              Interpret ANSI color sequences.


This works as expected in bash or dash:

    printf "\033[39;1;43mWhite-On-Red\033[0m\n"

And so is this (additional level of protection from the shell):

    printf '"\033[39;1;43mWhite-On-Red\033[0m\n"'

When running under 'watch', even when the -c/--color is in effect, the
colors disappear:

    watch -c printf '"\033[39;1;43mWhite-On-Red\033[0m\n"'

Same issue happens with simpler (one number) ANSI color sequences, e.g.:
    printf '"\033[43mWhite-On-Red\033[0m\n"'    # works fine

while:
    watch -c printf '"\033[43mWhite-On-Red\033[0m\n"'

the color disappears.

The same happens when the whole ANSI escape sequence is hidden
from watch (wrapped in a shell script like this:)

    #!/bin/sh
    printf "\033[43mWhite-On-Red\033[0m\n"

call this script 'wor', chmod +x wor and try:

    watch -c ./wor

Again, color is gone.

I'm using procps_3.3.9 on Ubuntu.

   procps  1:3.3.9-1ubuntu2.2

      
Tried to build from source ('apt-get source procps; cd procps-3.3.9/; make') and the issue is still there.

** Affects: procps (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: procps watch

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Touch seeded packages, which is subscribed to procps in Ubuntu.
https://bugs.launchpad.net/bugs/1493595

Title:
  procps watch -c/--color option doesn't work

Status in procps package in Ubuntu:
  New

Bug description:
  This is a bug report on 'watch' from procps.

  Essentially, it doesn't seem like -c/--color (ANSI color sequences
  support) works.

  Here's how to reproduce:

  'man watch says':

        -c, --color
                Interpret ANSI color sequences.

  
  This works as expected in bash or dash:

      printf "\033[39;1;43mWhite-On-Red\033[0m\n"

  And so is this (additional level of protection from the shell):

      printf '"\033[39;1;43mWhite-On-Red\033[0m\n"'

  When running under 'watch', even when the -c/--color is in effect, the
  colors disappear:

      watch -c printf '"\033[39;1;43mWhite-On-Red\033[0m\n"'

  Same issue happens with simpler (one number) ANSI color sequences, e.g.:
      printf '"\033[43mWhite-On-Red\033[0m\n"'    # works fine

  while:
      watch -c printf '"\033[43mWhite-On-Red\033[0m\n"'

  the color disappears.

  The same happens when the whole ANSI escape sequence is hidden
  from watch (wrapped in a shell script like this:)

      #!/bin/sh
      printf "\033[43mWhite-On-Red\033[0m\n"

  call this script 'wor', chmod +x wor and try:

      watch -c ./wor

  Again, color is gone.

  I'm using procps_3.3.9 on Ubuntu.

     procps  1:3.3.9-1ubuntu2.2

        
  Tried to build from source ('apt-get source procps; cd procps-3.3.9/; make') and the issue is still there.

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