[PATCH v7 0/5] Improving performance of git clean

["Erik Elfström" <erik.elfstrom@gmail.com>]

Here is a reroll of this series (after much delay).

Changes in v7:
* changed order of file size and file open error check in read_gitfile
* resolved conflicts with nd/multiple-work-trees. This removed the
  need for is_git_directory_gently that was added in v6 and simplified
  some error cases.

Erik Elfström (5):
  setup: add gentle version of read_gitfile
  setup: sanity check file size in read_gitfile_gently
  t7300: add tests to document behavior of clean and nested git
  p7300: add performance tests for clean
  clean: improve performance when removing lots of directories

 builtin/clean.c       |  30 +++++++++--
 cache.h               |  12 ++++-
 setup.c               |  91 +++++++++++++++++++++++++-------
 t/perf/p7300-clean.sh |  31 +++++++++++
 t/t7300-clean.sh      | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 280 insertions(+), 24 deletions(-)
 create mode 100755 t/perf/p7300-clean.sh

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2.4.3.373.gc496bfb