[Bug 2009482] [NEW] Regression when cloning locally in 2.17.1-1ubuntu0.17

[Hauke Mehrtens]

Public bug reported:

After installing the git update from 2.17.1-1ubuntu0.16 to
2.17.1-1ubuntu0.17 cloning from repositories clones by the repo tool
does not work. This is seen on Ubuntu 18.04.

The repo tool created a git clone which looks like this (The repository is two times in the manifest):
-----------------
mehrtens at pon-swdev1:/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt$ ls -al /local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt/../source/linux_prx//.git/
total 5948
drwxr-xr-x  2 mehrtens adusers    4096 Mar  6 11:08 .
drwxr-xr-x 28 mehrtens adusers    4096 Mar  6 11:18 ..
-rw-r--r--  1 mehrtens adusers      44 Feb 24 14:25 COMMIT_EDITMSG
lrwxrwxrwx  1 mehrtens adusers      61 Jan 26 17:35 config -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/config
lrwxrwxrwx  1 mehrtens adusers      55 Jan 26 17:35 description -> ../../../../.repo/project-objects/linux.git/description
-rw-r--r--  1 mehrtens adusers  217700 Mar  2 10:20 FETCH_HEAD
-rw-r--r--  1 mehrtens adusers      22 Mar  6 10:56 HEAD
lrwxrwxrwx  1 mehrtens adusers      49 Jan 26 17:35 hooks -> ../../../../.repo/project-objects/linux.git/hooks
-rw-r--r--  1 mehrtens adusers 5838812 Mar  6 10:57 index
lrwxrwxrwx  1 mehrtens adusers      48 Jan 26 17:35 info -> ../../../../.repo/project-objects/linux.git/info
lrwxrwxrwx  1 mehrtens adusers      59 Jan 26 17:35 logs -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/logs
lrwxrwxrwx  1 mehrtens adusers      51 Jan 26 17:35 objects -> ../../../../.repo/project-objects/linux.git/objects
-rw-r--r--  1 mehrtens adusers      41 Mar  2 19:05 ORIG_HEAD
lrwxrwxrwx  1 mehrtens adusers      66 Jan 26 17:35 packed-refs -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/packed-refs
lrwxrwxrwx  1 mehrtens adusers      59 Jan 26 17:35 refs -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/refs
lrwxrwxrwx  1 mehrtens adusers      52 Jan 26 17:35 rr-cache -> ../../../../.repo/project-objects/linux.git/rr-cache
lrwxrwxrwx  1 mehrtens adusers      47 Jan 26 17:35 svn -> ../../../../.repo/project-objects/linux.git/svn
-----------------

When I clone this local git repository I am getting this error message:
-----------------
mehrtens at pon-swdev1:/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt$ git clone ../source/linux_prx/ linux-test
Cloning into 'linux-test'...
fatal: failed to start iterator over '/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt/../source/linux_prx//.git/objects': Not a directory
fatal: The remote end hung up unexpectedly
mehrtens at pon-swdev1:/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt$
-----------------

When I use git version 2.17.1-1ubuntu0.16 it works.

As a workaround we now downgraded to git version 2.17.1-1ubuntu0.16 and
it works again.

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

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https://bugs.launchpad.net/bugs/2009482

Title:
  Regression when cloning locally in 2.17.1-1ubuntu0.17

Status in git package in Ubuntu:
  New

Bug description:
  After installing the git update from 2.17.1-1ubuntu0.16 to
  2.17.1-1ubuntu0.17 cloning from repositories clones by the repo tool
  does not work. This is seen on Ubuntu 18.04.

  The repo tool created a git clone which looks like this (The repository is two times in the manifest):
  -----------------
  mehrtens at pon-swdev1:/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt$ ls -al /local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt/../source/linux_prx//.git/
  total 5948
  drwxr-xr-x  2 mehrtens adusers    4096 Mar  6 11:08 .
  drwxr-xr-x 28 mehrtens adusers    4096 Mar  6 11:18 ..
  -rw-r--r--  1 mehrtens adusers      44 Feb 24 14:25 COMMIT_EDITMSG
  lrwxrwxrwx  1 mehrtens adusers      61 Jan 26 17:35 config -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/config
  lrwxrwxrwx  1 mehrtens adusers      55 Jan 26 17:35 description -> ../../../../.repo/project-objects/linux.git/description
  -rw-r--r--  1 mehrtens adusers  217700 Mar  2 10:20 FETCH_HEAD
  -rw-r--r--  1 mehrtens adusers      22 Mar  6 10:56 HEAD
  lrwxrwxrwx  1 mehrtens adusers      49 Jan 26 17:35 hooks -> ../../../../.repo/project-objects/linux.git/hooks
  -rw-r--r--  1 mehrtens adusers 5838812 Mar  6 10:57 index
  lrwxrwxrwx  1 mehrtens adusers      48 Jan 26 17:35 info -> ../../../../.repo/project-objects/linux.git/info
  lrwxrwxrwx  1 mehrtens adusers      59 Jan 26 17:35 logs -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/logs
  lrwxrwxrwx  1 mehrtens adusers      51 Jan 26 17:35 objects -> ../../../../.repo/project-objects/linux.git/objects
  -rw-r--r--  1 mehrtens adusers      41 Mar  2 19:05 ORIG_HEAD
  lrwxrwxrwx  1 mehrtens adusers      66 Jan 26 17:35 packed-refs -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/packed-refs
  lrwxrwxrwx  1 mehrtens adusers      59 Jan 26 17:35 refs -> ../../../../.repo/projects/ugw_sw/source/linux_prx.git/refs
  lrwxrwxrwx  1 mehrtens adusers      52 Jan 26 17:35 rr-cache -> ../../../../.repo/project-objects/linux.git/rr-cache
  lrwxrwxrwx  1 mehrtens adusers      47 Jan 26 17:35 svn -> ../../../../.repo/project-objects/linux.git/svn
  -----------------

  When I clone this local git repository I am getting this error message:
  -----------------
  mehrtens at pon-swdev1:/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt$ git clone ../source/linux_prx/ linux-test
  Cloning into 'linux-test'...
  fatal: failed to start iterator over '/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt/../source/linux_prx//.git/objects': Not a directory
  fatal: The remote end hung up unexpectedly
  mehrtens at pon-swdev1:/local/mehrtens/pon/ugw-9.x/ugw_sw/openwrt$
  -----------------

  When I use git version 2.17.1-1ubuntu0.16 it works.

  As a workaround we now downgraded to git version 2.17.1-1ubuntu0.16
  and it works again.

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