X-Git-Url: https://git.ralfj.de/auto-debuild.git/blobdiff_plain/f1454337761d8c6b564d73af342830caeb526678..180623ecdb0fbe555d16e2ddbb0edc31185e1a1f:/auto_debuild.py

diff --git a/auto_debuild.py b/auto_debuild.py
index 57ee13b..11845de 100755
--- a/auto_debuild.py
+++ b/auto_debuild.py
@@ -2,8 +2,27 @@
 import os, shutil, stat, time, subprocess, sys
 from collections import OrderedDict
 
-# some utility functions
-def safeCall(args):
+# a dict with some useful additional getters which can convert types and handle one-element lists like their single member
+class ConfigDict(dict):
+	def getstr(self, name, default = None):
+		if not name in self: return default
+		val = self[name]
+		if isinstance(val, list):
+			if len(val) != 1: raise Exception('%s is a list, but it should not' % name)
+			return val[0]
+		else:
+			return val
+	
+	def getint(self, name, default = None):
+		return int(self.getstr(name, default))
+	
+	def getbool(self, name, default = None):
+		val = self.getstr(name, default)
+		if isinstance(val, bool): return val # already a bool
+		return val.lower() in ('true', 'yes', 'on', '1')
+
+# create a safe-to-call shell command from the array
+def safeCall(*args):
 	res = ""
 	for arg in args:
 		assert arg.find("'") < 0 # ' is not supported
@@ -11,11 +30,49 @@ def safeCall(args):
 		res += "'"+arg+"'"
 	return res
 
+# Load a section-less config file: maps parameter names to space-separated lists of strings (with shell quotation)
+# Lines starting with spaces are continuation lines
+def loadConfigFile(file):
+	import shlex
+	# read config file
+	linenr = 0
+	with open(file) as file:
+		result = ConfigDict()
+		curKey = None
+		for line in file:
+			linenr += 1
+			isCont = len(line) and line[0].isspace() # remember if we were a continuation line
+			if isCont and curKey is None:
+				raise Exception("Invalid config, line %d: Starting with continuation line" % linenr)
+			line = line.strip()
+			if not len(line) or line.startswith("#"): continue # skip empty and comment lines
+			try:
+				if isCont:
+					# continuation line
+					result[curKey] += shlex.split(line)
+				else:
+					# option line
+					pos = line.index("=") # will raise exception when substring is not found
+					curKey = line[:pos].strip()
+					result[curKey] = shlex.split(line[pos+1:]) # shlex.split also strips
+			except Exception:
+				raise Exception("Invalid config, line %d: Error parsing line (quoting issue?)" % linenr)
+	# add some convencience get functions
+	return result
+
+# representation of a build system
+class BuildSystem:
+	def __init__(self, ruleMaker, buildDepends = [], binaryDepends = []):
+		self.ruleMaker = ruleMaker
+		self.buildDepends = buildDepends
+		self.binaryDepends = binaryDepends
+
 # abstract representation of rules file
 class RulesFile:
 	def __init__(self):
 		self.env = {}
 		self.dh = []
+		self.dhWith = set()
 		self.rules = OrderedDict()
 	
 	def env2str(self):
@@ -30,51 +87,85 @@ class RulesFile:
 	def write(self, f):
 		print >>f, "#!/usr/bin/make -f"
 		print >>f, ""
-		print >>f, "%:"
-		print >>f, '\t'+self.env2str()+' dh $@ '+safeCall(self.dh)
+		print >>f, ".PHONY: build" # there may be a directory called "build"
+		print >>f, ""
+		print >>f, "build %:" # need to mention "build" here again explicitly so PHONY takes effect
+		# write proper dh call
+		dh = self.dh
+		if self.dhWith:
+			dh.append('--with='+','.join(self.dhWith))
+		print >>f, '\t'+self.env2str()+' dh $@ '+safeCall(*dh)
+		# write remaining rules
 		for rule in self.rules:
 			print >>f, ""
 			print >>f, "override_dh_"+rule+":"
 			for line in self.rules[rule]:
 				print >>f, "\t"+line
 
-# build-system specific part of rules file
+# rule-makers
 def cmakeRules(config):
-	buildDir = config.get('buildDir', 'build.dir') # "build" is not a good idea, as that's also the name of a target...
+	buildDir = config.getstr('buildDir', 'build')
 	srcDir = os.getcwd()
 	r = RulesFile()
 	r.dh += ["--buildsystem=cmake", "--builddirectory="+buildDir] # dh parameters
 	r.rules['auto_configure'] = [
-		safeCall(["mkdir", "-p", buildDir]),
-		safeCall(["cd", buildDir]) + " && " +
-		  safeCall(["cmake", srcDir, "-DCMAKE_INSTALL_PREFIX=/usr"] + config.get('cmakeParameters', []))
+		safeCall("mkdir", "-p", buildDir),
+		safeCall("cd", buildDir) + " && " +
+		  safeCall("cmake", srcDir, "-DCMAKE_INSTALL_PREFIX=/usr", *config.get('cmakeParameters', []))
 	]
-	r.rules['auto_clean'] = [safeCall(['rm', '-f', os.path.join(buildDir, 'CMakeCache.txt')])] # clean old cmake cache
+	r.rules['auto_clean'] = [safeCall('rm', '-f', os.path.join(buildDir, 'CMakeCache.txt'))] # clean old cmake cache
 	return r
 
 def automakeRules(config):
+	# "build" is what we are building *on*, and "host" is what we are building *for* (and GNU is weird...)
+	# also, we don't really support cross-building... ;-) (to do, we'd have to write shell code that checks whether BUILD_GNU_TYPE
+	#  and HOST_GNU_TYPE are equal, and if they are not, add a --host parameter)
 	r = RulesFile()
 	r.dh += ["--buildsystem=autoconf"]
 	r.rules['auto_configure'] = [
 		'BUILD_TYPE=$$(dpkg-architecture -qDEB_BUILD_GNU_TYPE) && ' + # doing the expansion beforehand ensures that we cancel if it fails
-		'MULTIARCH=$$(dpkg-architecture -qDEB_BUILD_MULTIARCH) && '+
+		'MULTIARCH=$$(dpkg-architecture -qDEB_HOST_MULTIARCH) && '+
 			'./configure --build=$$BUILD_TYPE '+ # do the escape manually here so we can use the variables (there's no user-controlled string in here anyway)
 			'--prefix=/usr --includedir=/usr/include --mandir=/usr/share/man --infodir=/usr/share/info '+
 			'--libdir=/usr/lib/$$MULTIARCH --libexecdir=/usr/lib/$$MULTIARCH '+
 			'--sysconfdir=/etc --localstatedir=/var '+
-			safeCall(config.get('automakeParameters', []))
+			safeCall(*config.get('automakeParameters', []))
 	]
 	r.rules['auto_clean'] = ['rm -f config.status'] # do not re-use old configuration (no need for escaping here, obviously)
 	return r
 
+def pythonRules(config):
+	r = RulesFile()
+	r.dh += ["--buildsystem=python_distutils"]
+	r.dhWith.add('python2')
+	r.rules['auto_clean'] = [ # clean properly
+		'dh_auto_clean',
+		'rm -rf build'
+	]
+	return r
+
+def noneRules(config):
+	r = RulesFile()
+	r.dh += ["--buildsystem=makefile"] # makefile does the last possible harm
+	r.rules['auto_build'] = []
+	return r
+
+# build systems
+buildSystems = {
+	'cmake': BuildSystem(cmakeRules, ["cmake"]),
+	'automake': BuildSystem(automakeRules),
+	'python': BuildSystem(pythonRules, ["python-setuptools"], ["${python:Depends}"]),
+	'none': BuildSystem(noneRules),
+}
+
 # utility functions
 def commandInBuildEnv(config, command):
-	schroot = config.get('schroot')
+	schroot = config.getstr('schroot')
 	if schroot is not None: command = ['schroot', '-c', schroot, '--'] + command
 	return command
 
 def getArchitecture(config):
-	cmd = commandInBuildEnv(config, ['dpkg-architecture', '-qDEB_BUILD_ARCH'])
+	cmd = commandInBuildEnv(config, ['dpkg-architecture', '-qDEB_HOST_ARCH'])
 	p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
 	res = p.communicate()[0] # get only stdout
 	if p.returncode != 0: raise Exception("Querying dpkg for the architecture failed")
@@ -86,16 +177,21 @@ def writeDependency(f, name, list):
 
 # actual work functions
 def createDebianFiles(config):
-	sourceName = config['sourceName']
-	binaryName = config.get('binaryName', sourceName+'-local')
-	name = config.get('name', os.getlogin())
-	email = config.get('email', os.getlogin()+'@'+os.uname()[1]) # user@hostname
-	debDir = os.path.expanduser(config['debDir'])
-	buildSystem = config['buildSystem']
-	version = config['version']
-	dbgPackage = config.get('dbgPackage', False)
-	parallelJobs = int(config.get('parallelJobs', 2))
-	packageArchitecture = config.get('architecture', 'any')
+	if not isinstance(config, ConfigDict):
+		config = ConfigDict(config)
+	sourceName = config.getstr('sourceName')
+	binaryName = config.getstr('binaryName', sourceName+'-local')
+	name = config.getstr('name', os.getenv('USER')) # os.getlogin() fails in minimal chroots
+	email = config.getstr('email', os.getenv('USER')+'@'+os.uname()[1]) # user@hostname
+	debDir = os.path.expanduser(config.getstr('debDir'))
+	buildSystem = buildSystems[config.getstr('buildSystem')] # get the data immediately
+	version = config.getstr('version')
+	dbgPackage = config.getbool('dbgPackage', False)
+	parallelJobs = config.getint('parallelJobs', 2)
+	packageArchitecture = config.getstr('architecture', 'any')
+	withPython2 = config.getbool('withPython2', False)
+	if withPython2:
+		buildSystem.binaryDepends.append("${python:Depends}") # HACK, but it works: make sure dependencies on binary are added
 	# we return the list of files generated, so we need to know the architecture
 	arch = getArchitecture(config)
 	files = []
@@ -103,7 +199,7 @@ def createDebianFiles(config):
 	if os.path.exists('debian'): raise Exception('debian folder already exists?')
 	os.mkdir('debian')
 	os.mkdir('debian/source')
-	if not os.path.exists(debDir): os.mkdir(debDir)
+	if not os.path.exists(debDir): os.makedirs(debDir)
 	# source format file
 	with open('debian/source/format', 'w') as f:
 		print >>f, "3.0 (native)"
@@ -123,38 +219,72 @@ def createDebianFiles(config):
 	# control file
 	with open('debian/control', 'w') as f:
 		print >>f, "Source:",sourceName
-		print >>f, "Section:",config.get('section', 'misc')
+		print >>f, "Section:",config.getstr('section', 'misc')
 		print >>f, "Priority: extra"
 		print >>f, "Maintainer: %s <%s>" % (name, email)
-		writeDependency(f, 'Build-Depends', ["debhelper (>= 9)"] + config.get('buildDepends', []))
+		writeDependency(f, 'Build-Depends', ["debhelper (>= 9)"] + buildSystem.buildDepends + config.get('buildDepends', []))
 		print >>f, "Standards-Version: 3.9.3"
 		print >>f, ""
 		print >>f, "Package:",binaryName
 		print >>f, "Architecture:",packageArchitecture
+		if 'binaryMultiArch' in config:
+			print >>f, "Multi-Arch:",config.getstr('binaryMultiArch')
 		writeDependency(f, "Pre-Depends", ["${misc:Pre-Depends}"] + config.get('binaryPreDepends', []))
-		writeDependency(f, "Depends", ["${shlibs:Depends}", "${misc:Depends}"] + config.get('binaryDepends', []))
+		writeDependency(f, "Depends", ["${shlibs:Depends}", "${misc:Depends}"] + buildSystem.binaryDepends +
+			config.get('binaryDepends', []))
 		writeDependency(f, "Recommends", config.get('binaryRecommends', []))
 		writeDependency(f, "Provides", config.get('binaryProvides', [sourceName]))
+		writeDependency(f, "Conflicts", config.get('binaryConflicts', []))
+		writeDependency(f, "Breaks", config.get('binaryBreaks', []) + config.get('binaryBreaksReplaces', []))
+		writeDependency(f, "Replaces", config.get('binaryReplaces', []) + config.get('binaryBreaksReplaces', []))
 		print >>f, "Description:",sourceName,"(auto-debuild)"
 		print >>f, " Package auto-generated by auto-debuild."
 		files.append(os.path.join(debDir, "%s_%s_%s.deb" % (binaryName, version, arch)))
 		if dbgPackage:
 			print >>f, ""
 			print >>f, "Package:",binaryName+"-dbg"
+			print >>f, "Section: debug"
+			print >>f, "Priority: extra"
 			print >>f, "Architecture:",packageArchitecture
 			writeDependency(f, "Depends", ["${misc:Depends}", binaryName+" (= ${binary:Version})"])
 			print >>f, "Description:",sourceName,"debug smbols (auto-debuild)"
 			print >>f, " Package containing debug symbols for "+sourceName+", auto-generated by auto-debuild."
 			files.append(os.path.join(debDir, "%s-dbg_%s_%s.deb" % (binaryName, version, arch)))
+	# install file
+	with open('debian/'+binaryName+'.install', 'w') as f:
+		for line in config.get('binaryInstallFiles', []):
+			if line.startswith('/'): # a file from within the package, not from the source tree
+				line = 'debian/'+binaryName+line
+			print >>f, line
+	# maintainer scripts for alternatives
+	if 'alternatives' in config:
+		with open('debian/'+binaryName+'.postinst', 'w') as f:
+			print >>f, "#!/bin/sh"
+			print >>f, "set -e"
+			print >>f, 'if [ "$1" = "configure" ]; then'
+			for alternative in config.get('alternatives'):
+				print >>f, safeCall('update-alternatives', '--install', alternative['link'], alternative['name'], alternative['target'],
+					str(alternative['priority']))
+			print >>f, 'fi'
+			print >>f, ''
+			print >>f, '#DEBHELPER#'
+			print >>f, ''
+			print >>f, 'exit 0'
+		with open('debian/'+binaryName+'.prerm', 'w') as f:
+			print >>f, "#!/bin/sh"
+			print >>f, "set -e"
+			print >>f, 'if [ "$1" = "remove" ]; then'
+			for alternative in config.get('alternatives'):
+				print >>f, safeCall('update-alternatives', '--remove', alternative['name'], alternative['target'])
+			print >>f, 'fi'
+			print >>f, ''
+			print >>f, '#DEBHELPER#'
+			print >>f, ''
+			print >>f, 'exit 0'
 	# rules file: build system specific
 	with open('debian/rules', 'w') as f:
 		# get rule file for build system: may only touch auto_config and auto_clean rules and the dh options
-		if buildSystem == 'cmake':
-			r = cmakeRules(config)
-		elif buildSystem == 'automake':
-			r = automakeRules(config)
-		else:
-			raise Exception("Invalid build system "+buildSystem)
+		r = buildSystem.ruleMaker(config)
 		# global rules
 		r.env["DEB_BUILD_OPTIONS"] = 'parallel='+str(parallelJobs)
 		if not dbgPackage:
@@ -162,51 +292,67 @@ def createDebianFiles(config):
 			r.env["DEB_CFLAGS_APPEND"] = '-g0'
 			r.env["DEB_CXXFLAGS_APPEND"] = '-g0'
 		r.dh += ['--parallel']
-		r.rules['builddeb'] = [safeCall(['dh_builddeb', "--destdir="+debDir])] # passing this gobally to dh results in weird problems (like stuff being installed there, and not in the package...)
+		if withPython2:
+			r.dhWith.add('python2')
+			r.rules['python2'] = ['dh_python2 --no-guessing-versions']
+		r.rules['builddeb'] = [safeCall('dh_builddeb', "--destdir="+debDir)] # passing this gobally to dh results in weird problems (like stuff being installed there, and not in the package...)
 		r.rules['auto_test'] = []
 		# installation rule
-		r.rules['auto_install'] = [safeCall(['dh_auto_install', '--destdir=debian/'+binaryName])] # install everything into the binary package
+		r.rules['auto_install'] = [safeCall('dh_auto_install', '--destdir=debian/'+binaryName)] # install everything into the binary package
 		if 'binarySkipFiles' in config:
-			r.rules['auto_install'].append(safeCall(['cd', 'debian/'+binaryName]) + " && " +
-				safeCall(['rm'] + config['binarySkipFiles']))
+			r.rules['auto_install'].append(safeCall('cd', 'debian/'+binaryName) + " && " +
+				safeCall('rm', *config.get('binarySkipFiles')))
 		# for debug packages
 		if dbgPackage:
-			r.rules['strip'] = [safeCall(['dh_strip', '--dbg-package='+binaryName+"-dbg"])] # put debug files in appropriate package
-			r.rules['installdocs'] = [safeCall(['dh_installdocs', '--link-doc='+binaryName])] # make the doc folder of the dbg package a symlink
+			r.rules['strip'] = [safeCall('dh_strip', '--dbg-package='+binaryName+"-dbg")] # put debug files in appropriate package
+			r.rules['installdocs'] = [safeCall('dh_installdocs', '--link-doc='+binaryName)] # make the doc folder of the dbg package a symlink
+		# wait after configuration?
+		if config.getbool('waitAfterConfig', False):
+			if not 'auto_configure' in r.rules: r.rules['auto_configure'] = ['dh_auto_configure'] # make sure there is an override
+			r.rules['auto_configure'].append("@"+safeCall('read', '-p', 'Configuration done. Hit "Enter" to build the package. ', 'DUMMY_VAR')) # if we run in dash, we need to tell it which variable to use for the result...
 		# dump it to a file
 		r.write(f)
 	mode = os.stat('debian/rules').st_mode
 	os.chmod('debian/rules', mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH)
-	# return list of files affected
+	# return list of files that will be created
 	return files
 
 def buildDebianPackage(config):
+	if not isinstance(config, ConfigDict):
+		config = ConfigDict(config)
 	commands = ['dpkg-checkbuilddeps', 'debian/rules clean', 'debian/rules build', 'fakeroot debian/rules binary', 'debian/rules clean']
-	command = ['nice', 'bash', '-c', ' && '.join(commands)]
+	command = ['bash', '-c', ' && '.join(commands)] # make it all one command, so we don't have to open and close the chroot too often
 	subprocess.check_call(commandInBuildEnv(config, command))
 	shutil.rmtree('debian') # it only contains what we just created
 
-# all at once
-def createAndInstall(config, overwriteCheck = False):
-	# generate debian files
-	files = createDebianFiles(config)
-	# check if a file is overwritten
-	if overwriteCheck:
+###################################################################
+# if we are called directly as script
+if __name__ == "__main__":
+	try:
+		# get config
+		config = loadConfigFile('auto-debuild.conf')
+		# generate debian files
+		if os.path.exists('debian'):
+			if raw_input("A debian folder already exists, to you want to remove it (y/N)? ").lower() != "y":
+				sys.exit(1)
+			shutil.rmtree('debian')
+		files = createDebianFiles(config)
+		# check if a file is overwritten
 		for file in files:
 			if os.path.exists(file):
 				if raw_input("Do you want to overwrite %s (y/N)? " % file).lower() != "y":
 					sys.exit(1)
-	# run compilation
-	buildDebianPackage(config)
-	# install files
-	print "Installing created deb files..."
-	subprocess.check_call(['sudo', 'dpkg', '--install'] + files)
-
-# if we are called directly as script
-if __name__ == "__main__":
-	# get config
-	import imp
-	config = imp.load_source('config', 'auto-debuild.conf').__dict__
-	os.remove('auto-debuild.confc')
-	# and go for it
-	createAndInstall(config, overwriteCheck=True)
+		# run compilation
+		buildDebianPackage(config)
+		# install files
+		print "Installing created deb files..."
+		subprocess.check_call(['sudo', 'dpkg', '--install'] + files)
+	except (subprocess.CalledProcessError, KeyboardInterrupt) as e: # for some exceptions, a stackrace is usually pointless
+		print >> sys.stderr
+		print >> sys.stderr
+		if isinstance(e, KeyboardInterrupt): # str(e) would be the empty string
+			print >> sys.stderr, "Interruped by user"
+		else:
+			print >> sys.stderr, "Error during package creation: %s" % str(e)
+		print >> sys.stderr
+		sys.exit(1)