Minor upgrade in composer.json

composer-inc-minor.sh

#!/bin/bash

# This script takes a composer.json file as first parameter
# and will increase the minor number of the semantic version.
# e.g. From 1.3.3 to 1.4.0.

oops() {
    echo "$0:" "$@" >&2
    exit 1
}

require_util() {
    command -v "$1" > /dev/null 2>&1 ||
        oops "you do not have '$1' installed, which I need to $2"
}

# check deps
require_util jq "parse json files"

composer="$1" 
if ! [ -f "$composer" ]; then
    oops "wrong composer file given as parameter"
fi

version=$(jq --raw-output '.version' "$composer")

# build array out of version
a=( ${version//./ } )

# increment minor
result="${a[0]}.$((a[1]+1)).0"

# override version in composer.json file
output=$(jq --indent 4 --arg version "$result" '.version = $version' "$composer")
echo "$output" > "$composer" 

echo "version upgraded from $version to $result"