[Bug 1535458] Re: [15.10 REGRESSION] Randomly wrongly detects files as binary

[Alberto Salvia Novella]

** Description changed:

  I have a folder with a bunch of subfolder and several hundred or
  thousands files, most of them PHP files (obviously text).
  
  I often use grep recursively, like this:
-   $ grep -R somepattern *
+   $ grep -R somepattern *
  
  Since the upgrade from 15.04 to 15.10, it often happens that a lot of text files are wrongly treated as binary. That means that, when a match is found, instead of getting the normal output which would show the file name and the matching line (with the matching substring highlighted), I get the bogus message:
-   binary file whatever.php matches
+   binary file whatever.php matches
  
  Just to be clear: in one invocation of grep -R, I get mixed output with
  a lot of matches shown in the expected way and quit e a few matches
  shown in the wrong way, even though ALL matching files are text files.
  
- 
  This worked as expected before the upgrade from 15.04 and 15.10.
  
+ This is a HUGE issue that makes it impossible to do everyday developing
+ work.
  
- This is a HUGE issue that makes it impossible to do everyday developing work.
+ Until you fix it, please roll back grep to the previous version, because
+ it is unusable.
  
- 
- Until you fix it, please f***ing roll back grep to the previous version, because this sh** is unusable.
+ Thanks for your attention 🌼
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: grep 2.21-2
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Jan 18 22:43:51 2016
  InstallationDate: Installed on 2013-10-11 (829 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  SourcePackage: grep
  UpgradeStatus: Upgraded to wily on 2016-01-18 (0 days ago)

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https://bugs.launchpad.net/bugs/1535458

Title:
  [15.10 REGRESSION] Randomly wrongly detects files as binary

Status in grep package in Ubuntu:
  Confirmed
Status in grep package in Debian:
  Fix Released

Bug description:
  I have a folder with a bunch of subfolder and several hundred or
  thousands files, most of them PHP files (obviously text).

  I often use grep recursively, like this:
    $ grep -R somepattern *

  Since the upgrade from 15.04 to 15.10, it often happens that a lot of text files are wrongly treated as binary. That means that, when a match is found, instead of getting the normal output which would show the file name and the matching line (with the matching substring highlighted), I get the bogus message:
    binary file whatever.php matches

  Just to be clear: in one invocation of grep -R, I get mixed output
  with a lot of matches shown in the expected way and quit e a few
  matches shown in the wrong way, even though ALL matching files are
  text files.

  This worked as expected before the upgrade from 15.04 and 15.10.

  This is a HUGE issue that makes it impossible to do everyday
  developing work.

  Until you fix it, please roll back grep to the previous version,
  because it is unusable.

  Thanks for your attention 🌼

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: grep 2.21-2
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Jan 18 22:43:51 2016
  InstallationDate: Installed on 2013-10-11 (829 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  SourcePackage: grep
  UpgradeStatus: Upgraded to wily on 2016-01-18 (0 days ago)

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