Make alternatives useable again from config file

[auto-debuild.git] / auto_debuild.py

diff --git a/auto_debuild.py b/auto_debuild.py
index c7a762854abff687b89a5a24a8b1a28ed45411df..5733273c4634e92ca33779b8ba4d730c99b427b3 100755 (executable)
--- a/auto_debuild.py
+++ b/auto_debuild.py
@@ -1,8 +1,27 @@
 #!/usr/bin/python
 #!/usr/bin/python

-import os, shutil, stat, time, subprocess, sys
+import os, shutil, stat, time, subprocess, sys, shlex

 from collections import OrderedDict
 
 from collections import OrderedDict
 

-# some utility functions
+# 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:
 def safeCall(*args):
        res = ""
        for arg in args:


@@ -11,11 +30,48 @@ def safeCall(*args):
                res += "'"+arg+"'"
        return res
 
                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):
+       # 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 = []
 # abstract representation of rules file
 class RulesFile:
        def __init__(self):
                self.env = {}
                self.dh = []

+               self.dhWith = set()

                self.rules = OrderedDict()
        
        def env2str(self):
                self.rules = OrderedDict()
        
        def env2str(self):


@@ -32,17 +88,22 @@ class RulesFile:
                print >>f, ""
                print >>f, ".PHONY: build" # there may be a directory called "build"
                print >>f, ""
                print >>f, ""
                print >>f, ".PHONY: build" # there may be a directory called "build"
                print >>f, ""

-               print >>f, "build %:" # need to mention "build" here again explicitly
-               print >>f, '\t'+self.env2str()+' dh $@ '+safeCall(*self.dh)
+               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
 
                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):
 def cmakeRules(config):

-       buildDir = config.get('buildDir', 'build')
+       buildDir = config.getstr('buildDir', 'build')

        srcDir = os.getcwd()
        r = RulesFile()
        r.dh += ["--buildsystem=cmake", "--builddirectory="+buildDir] # dh parameters
        srcDir = os.getcwd()
        r = RulesFile()
        r.dh += ["--buildsystem=cmake", "--builddirectory="+buildDir] # dh parameters


@@ -72,9 +133,33 @@ def automakeRules(config):
        r.rules['auto_clean'] = ['rm -f config.status'] # do not re-use old configuration (no need for escaping here, obviously)
        return r
 
        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):
 # 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
 
        if schroot is not None: command = ['schroot', '-c', schroot, '--'] + command
        return command
 


@@ -91,17 +176,21 @@ def writeDependency(f, name, list):
 
 # actual work functions
 def createDebianFiles(config):
 
 # actual work functions
 def createDebianFiles(config):

-       sourceName = config['sourceName']
-       binaryName = config.get('binaryName', sourceName+'-local')
-       name = config.get('name', os.getenv('USER')) # os.getlogin() fails in minimal chroots
-       email = config.get('email', os.getenv('USER')+'@'+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')
-       withPython2 = config.get('withPython2', False)
+       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 = []
        # we return the list of files generated, so we need to know the architecture
        arch = getArchitecture(config)
        files = []


@@ -109,7 +198,7 @@ def createDebianFiles(config):
        if os.path.exists('debian'): raise Exception('debian folder already exists?')
        os.mkdir('debian')
        os.mkdir('debian/source')
        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)"
        # source format file
        with open('debian/source/format', 'w') as f:
                print >>f, "3.0 (native)"


@@ -129,25 +218,32 @@ def createDebianFiles(config):
        # control file
        with open('debian/control', 'w') as f:
                print >>f, "Source:",sourceName
        # 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)
                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
                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", ["${misc:Pre-Depends}"] + config.get('binaryPreDepends', []))
                writeDependency(f, "Pre-Depends", ["${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, "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, "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+" (= ${binary:Version})"])
                        print >>f, "Description:",sourceName,"debug smbols (auto-debuild)"
                        print >>f, "Architecture:",packageArchitecture
                        writeDependency(f, "Depends", ["${misc:Depends}", binaryName+" (= ${binary:Version})"])
                        print >>f, "Description:",sourceName,"debug smbols (auto-debuild)"


@@ -159,15 +255,36 @@ def createDebianFiles(config):
                        if line.startswith('/'): # a file from within the package, not from the source tree
                                line = 'debian/'+binaryName+line
                        print >>f, line
                        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'):
+                               alternative = shlex.split(alternative)
+                               print >>f, safeCall('update-alternatives', '--install', alternative[0], alternative[1], alternative[2], alternative[3])
+                       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'):
+                               alternative = shlex.split(alternative)
+                               print >>f, safeCall('update-alternatives', '--remove', alternative[1], alternative[2])
+                       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
        # 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:
                # global rules
                r.env["DEB_BUILD_OPTIONS"] = 'parallel='+str(parallelJobs)
                if not dbgPackage:


@@ -176,7 +293,7 @@ def createDebianFiles(config):
                        r.env["DEB_CXXFLAGS_APPEND"] = '-g0'
                r.dh += ['--parallel']
                if withPython2:
                        r.env["DEB_CXXFLAGS_APPEND"] = '-g0'
                r.dh += ['--parallel']
                if withPython2:

-                       r.dh += ['--with=python2']
+                       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'] = []
                        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'] = []


@@ -184,13 +301,14 @@ def createDebianFiles(config):
                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) + " && " +
                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']))
+                               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
                # wait after configuration?
                # 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
                # wait after configuration?

-               if config.get('waitAfterConfig', False):
+               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)
                        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)


@@ -200,6 +318,8 @@ def createDebianFiles(config):
        return files
 
 def buildDebianPackage(config):
        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 = ['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))
        commands = ['dpkg-checkbuilddeps', 'debian/rules clean', 'debian/rules build', 'fakeroot debian/rules binary', 'debian/rules clean']
        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))


@@ -209,10 +329,8 @@ def buildDebianPackage(config):
 # if we are called directly as script
 if __name__ == "__main__":
        try:
 # if we are called directly as script
 if __name__ == "__main__":
        try:

-               import imp

                # get config
                # get config

-               config = imp.load_source('config', 'auto-debuild.conf').__dict__
-               os.remove('auto-debuild.confc')
+               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":
                # 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":