[Bug 2109853] Re: [SRU] Make sbuild usable for 'user at org.com' users

[Marco Trevisan (Treviño)]

** Changed in: sbuild (Ubuntu)
   Importance: Undecided => High

** Changed in: sbuild (Ubuntu Noble)
   Importance: Undecided => High

** Changed in: sbuild (Ubuntu Oracular)
   Importance: Undecided => Medium

** Changed in: sbuild (Ubuntu Oracular)
   Importance: Medium => Low

** Changed in: sbuild (Ubuntu Plucky)
   Importance: Undecided => Medium

** Changed in: sbuild (Ubuntu)
     Assignee: (unassigned) => Carlos Nihelton (cnihelton)

** Changed in: sbuild (Ubuntu Noble)
     Assignee: (unassigned) => Carlos Nihelton (cnihelton)

** Changed in: sbuild (Ubuntu Oracular)
     Assignee: (unassigned) => Carlos Nihelton (cnihelton)

** Changed in: sbuild (Ubuntu Plucky)
     Assignee: (unassigned) => Carlos Nihelton (cnihelton)

** Changed in: sbuild (Ubuntu)
       Status: New => In Progress

** Changed in: sbuild (Ubuntu Noble)
       Status: New => In Progress

** Changed in: sbuild (Ubuntu Oracular)
       Status: New => In Progress

** Changed in: sbuild (Ubuntu Plucky)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/2109853

Title:
  [SRU] Make sbuild usable for 'user at org.com' users

Status in sbuild package in Ubuntu:
  In Progress
Status in sbuild source package in Noble:
  In Progress
Status in sbuild source package in Oracular:
  In Progress
Status in sbuild source package in Plucky:
  In Progress

Bug description:
  [Impact]

  With the increasing adoption of tools like authd, it's very likely
  that Linux desktop users in corporate environments end up with their
  usernames like 'user at org.com', what doesn't play nice with
  sbuild/schroot. Without properly escaping the username, the '@'
  character ends up being interpreted as a string interpolation what
  breaks the lock_chroot() subroutine.

  Fore more information about the issue, please check the upstream bug:
  https://salsa.debian.org/debian/sbuild/-/issues/4

  
  [ Test plan ]

  1. Make sure to have a user account containing the '@' character in its name, such as 'user at org.com'.
  2. Make sure to have a schroot environment ready. `mk-sbuild oracular` for example to create one for oracular. Note: the mk-sbuild command is provided by the ubuntu-dev-tools package, so make sure to have it installed.
  3. Retrieve the sources of a simple package: `pull-lp-source hello noble`
  4. Build the binary package with sbuild: `cd hello-2.10/ && sbuild -d noble-amd64` (adjust the schroot environment name according to your computer's architecture)

  Expected results without the patches herein proposed is a failure
  like:

  ```
  I: NOTICE: Log filtering will replace 'var/run/schroot/mount/plucky-amd64-c9a17ed0-5932-4df1-ad6e-d4df512a37b0' with '<<CHROOT>>'
  Possible unintended interpolation of @org in string at -e line 50.
  Global symbol "@org" requires explicit package name (did you forget to declare "my @org"?) at -e line 50.
  Execution of -e aborted due to compilation errors.
  E: Error locking chroot session: skipping livecd-rootfs
  ```

  Building the package should proceed normally with the patches applied.


  [ Where problems could occur ]

  The scope of the changes herein proposed is so small and self-contained that I 
  don't expect any issues arising from it under any circumstances.

  
  [ Other Info ]

  I'm skipping 'Questing', as I expect it to receive the fix via debian merges,
  sbuild version 0.89.2 (just accepted into Debian unstable) contains this patch (alongside other stuff).

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