.private/pre-commit.sh

   1 #!/bin/sh
   2 #
   3 # Sets the nano version according to the number of commits on this branch, as
   4 # well as the branch offset.
   5 #
   6 # To have git run this script on commit, first make sure you change
   7 # BRANCH_OFFSET to 60000 or higher, then create a "pre-commit" text file in
   8 # .git/hooks/ with the following content:
   9 # #!/bin/sh
  10 # if [ -x .private/pre-commit.sh ]; then
  11 #   source .private/pre-commit.sh
  12 # fi
  13 #
  14 # NOTE: These versioning hooks are intended to be used *INTERNALLY* by the
  15 # libusbx development team and are NOT intended to solve versioning for any
  16 # derivative branch, such as one you would create for private development.
  17 #
  18 # Should you wish to reuse these scripts for your own versioning, in your own
  19 # private branch, we kindly ask you to first set BRANCH_OFFSET to 60000, or
  20 # higher, as any offset below below 60000 is *RESERVED* for libusbx official
  21 # usage.
  22
  23 ################################################################################
  24 ##  YOU *MUST* SET THE FOLLOWING TO 60000 OR HIGHER IF YOU REUSE THIS SCRIPT  ##
  25 ################################################################################
  26 BRANCH_OFFSET=10000
  27 ################################################################################
  28
  29 type -P sed &>/dev/null || { echo "sed command not found. Aborting." >&2; exit 1; }
  30 type -P git &>/dev/null || { echo "git command not found. Aborting." >&2; exit 1; }
  31
  32 # The -b option of sed, which we use to prevent CRLF conversions on Windows
  33 # was only introduced recently, and Linux distros may not have it
  34 SED_CMD='sed -b'
  35 $SED_CMD --version > /dev/null 2>&1 || SED_CMD='sed'
  36
  37 NANO=`git log --oneline | wc -l`
  38 NANO=`expr $NANO + $BRANCH_OFFSET`
  39 # Amended commits need to have the nano corrected. Current versions of git hooks
  40 # only allow detection of amending post commit, so we require a .amend file,
  41 # which will be created post commit with a user warning if none exists when an
  42 # amend is detected.
  43 if [ -f .amend ]; then
  44   NANO=`expr $NANO - 1`
  45 fi
  46 echo "setting nano to $NANO"
  47 # -i option of sed is useless on Windows.
  48 $SED_CMD -e "s/^#define LIBUSB_NANO.*/#define LIBUSB_NANO $NANO/" libusb/version.h > libusb/version.h~
  49 mv libusb/version.h~ libusb/version.h
  50 git add libusb/version.h