Here is the Python script I use to increment my build number, whenever a source code change is detected, and update one or more Info.plist files within the project.
It was created to solve the issue raised in this question I asked a while back.
You need to create buildnum.ver file in the source tree that looks like this:
version 1.0
build 1
(you will need to manually increment version when certain project milestones are reached, but buildnum is incremented automatically).
NOTE the location of the .ver file must be in the root of the source tree (see SourceDir, below) as this script will look for modified files in this directory. If any are found, the build number is incremented. Modified means source files changes after the .ver file was last updated.
Then create a new Xcode target to run an external build tool and run something like:
tools/bump_buildnum.py SourceDir/buildnum.ver SourceDir/Info.plist
(make it run in ${PROJECT_DIR})
and then make all the actual Xcode targets dependent upon this target, so it runs before any of them are built.
#!/usr/bin/env python
#
# Bump build number in Info.plist files if a source file have changed.
#
# usage: bump_buildnum.py buildnum.ver Info.plist [ ... Info.plist ]
#
# andy@trojanfoe.com, 2014.
#
import sys, os, subprocess, re
def read_verfile(name):
version = None
build = None
verfile = open(name, "r")
for line in verfile:
match = re.match(r"^version\s+(\S+)", line)
if match:
version = match.group(1).rstrip()
match = re.match(r"^build\s+(\S+)", line)
if match:
build = int(match.group(1).rstrip())
verfile.close()
return (version, build)
def write_verfile(name, version, build):
verfile = open(name, "w")
verfile.write("version {0}\n".format(version))
verfile.write("build {0}\n".format(build))
verfile.close()
return True
def set_plist_version(plistname, version, build):
if not os.path.exists(plistname):
print("{0} does not exist".format(plistname))
return False
plistbuddy = '/usr/libexec/Plistbuddy'
if not os.path.exists(plistbuddy):
print("{0} does not exist".format(plistbuddy))
return False
cmdline = [plistbuddy,
"-c", "Set CFBundleShortVersionString {0}".format(version),
"-c", "Set CFBundleVersion {0}".format(build),
plistname]
if subprocess.call(cmdline) != 0:
print("Failed to update {0}".format(plistname))
return False
print("Updated {0} with v{1} ({2})".format(plistname, version, build))
return True
def should_bump(vername, dirname):
verstat = os.stat(vername)
allnames = []
for dirname, dirnames, filenames in os.walk(dirname):
for filename in filenames:
allnames.append(os.path.join(dirname, filename))
for filename in allnames:
filestat = os.stat(filename)
if filestat.st_mtime > verstat.st_mtime:
print("{0} is newer than {1}".format(filename, vername))
return True
return False
def upver(vername):
(version, build) = read_verfile(vername)
if version == None or build == None:
print("Failed to read version/build from {0}".format(vername))
return False
# Bump the version number if any files in the same directory as the version file
# have changed, including sub-directories.
srcdir = os.path.dirname(vername)
bump = should_bump(vername, srcdir)
if bump:
build += 1
print("Incremented to build {0}".format(build))
write_verfile(vername, version, build)
print("Written {0}".format(vername))
else:
print("Staying at build {0}".format(build))
return (version, build)
if __name__ == "__main__":
if os.environ.has_key('ACTION') and os.environ['ACTION'] == 'clean':
print("{0}: Not running while cleaning".format(sys.argv[0]))
sys.exit(0)
if len(sys.argv) < 3:
print("Usage: {0} buildnum.ver Info.plist [... Info.plist]".format(sys.argv[0]))
sys.exit(1)
vername = sys.argv[1]
(version, build) = upver(vername)
if version == None or build == None:
sys.exit(2)
for i in range(2, len(sys.argv)):
plistname = sys.argv[i]
set_plist_version(plistname, version, build)
sys.exit(0)
