[PATCH v3 0/10] getcwd without PATH_MAX

Paths longer than PATH_MAX can be created and used on at least on some file systems. Currently we use getcwd() generally with a PATH_MAX- sized buffer. This series adds two functions, strbuf_getcwd() and xgetcwd(), then uses them to reduce the number of fixed-sized buffers and to allow us to handle longer working directory paths.

Changes in v3:
  * all getcwd() calls are converted
  * the two strbuf_getcwd() examples from last round use xgetcwd()
    now, as suggested by Jeff
  * strbuf_add_absolute_path() is introduced

René Scharfe (10):
  strbuf: add strbuf_getcwd()
  unix-sockets: use strbuf_getcwd()
  setup: convert setup_git_directory_gently_1 et al. to strbuf
  abspath: use strbuf_getcwd() to remember original working directory
  abspath: convert real_path_internal() to strbuf
  wrapper: add xgetcwd()
  use xgetcwd() to get the current directory or die
  use xgetcwd() to set $GIT_DIR
  abspath: convert absolute_path() to strbuf
  use strbuf_add_absolute_path() to add absolute paths

 Documentation/technical/api-strbuf.txt |  10 +++
 abspath.c                              | 124 +++++++++------------------------
 builtin/init-db.c                      |  24 +++----
 builtin/rev-parse.c                    |   6 +-
 dir.c                                  |  12 ++--
 exec_cmd.c                             |   6 +-
 git-compat-util.h                      |   1 +
 git.c                                  |  13 ++--
 setup.c                                |  91 ++++++++++++------------
 sha1_file.c                            |   2 +-
 strbuf.c                               |  46 ++++++++++++
 strbuf.h                               |   3 +
 trace.c                                |   7 +-
 unix-socket.c                          |  14 ++--
 wrapper.c                              |   8 +++
 15 files changed, 190 insertions(+), 177 deletions(-)