.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 #   . .private/pre-commit.sh
  12 # fi
  13 #
  14 # NOTE: These versioning hooks are intended to be used *INTERNALLY* by the
  15 # libusb 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 libusb 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 if [ -n "$LIBUSB_SKIP_NANO" ]; then
  30   exit 0
  31 fi
  32
  33 if [ "$BASH_VERSION" = '' ]; then
  34   TYPE_CMD="type git >/dev/null 2>&1"
  35 else
  36   TYPE_CMD="type -P git &>/dev/null"
  37 fi
  38
  39 eval $TYPE_CMD || { echo "git command not found. Aborting." >&2; exit 1; }
  40
  41 NANO=`git log --oneline | wc -l`
  42 NANO=`expr $NANO + $BRANCH_OFFSET`
  43 # Amended commits need to have the nano corrected. Current versions of git hooks
  44 # only allow detection of amending post commit, so we require a .amend file,
  45 # which will be created post commit with a user warning if none exists when an
  46 # amend is detected.
  47 if [ -f .amend ]; then
  48   NANO=`expr $NANO - 1`
  49 fi
  50 echo "setting nano to $NANO"
  51 echo "#define LIBUSB_NANO $NANO" > libusb/version_nano.h
  52 git add libusb/version_nano.h