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