podspec_version.sed

# Copyright 2019 Google
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# USAGE:
# sed -n -f cmake/podspec_version.sed foo.podspec

# Finds the version of a podspec, looking for a line line this:
#
#     s.version          = '7.0.0'

# Find the line assigning to s.version
/.*s\.version *= */ {
  # Reuse the pattern buffer to remove the assignment.
  s///

  # Remove the surrounding quotes
  s/'\([^']*\)'/\1/

  # Explicitly print
  p
}