[RFC PATCH 0/6] ls-tree: introduce '--pattern' option

From: Teng Long <dyroneteng@gmail.com>

This RFC patch introduce a new "ls-tree" option "--pattern", aim to match the entries by regex then filter the output which we may want to achieve. It also contains some commit for preparation or cleanup.

The idea may be not comprehensive and the tests for it might be insufficient too, but I'd like to listen the suggestion from the community to decide if it's worth going forward with.

Thanks.

Teng Long (6):
  ls-tree: cleanup the redundant SPACE
  t3104: remove shift code in 'test_ls_tree_format'
  ls-tree: optimize params of 'show_tree_common_default_long()'
  ls-tree: improving cohension in the print code
  ls-tree: introduce 'match_pattern()' function
  ls-tree: introduce '--pattern' option

 Documentation/git-ls-tree.txt |   7 ++-
 builtin/ls-tree.c             | 109 ++++++++++++++++++++++++++--------
 t/t3104-ls-tree-format.sh     |   1 -
 t/t3106-ls-tree-pattern.sh    |  70 ++++++++++++++++++++++
 4 files changed, 161 insertions(+), 26 deletions(-)
 create mode 100755 t/t3106-ls-tree-pattern.sh