Add: nix-template-rpm: Script to generate templates of nix expressions from RPM .spec files
This commit is contained in:
Thomas Strobel
Cray Elliott
parent
a9b774204b
commit
f0228c6eb2
24
pkgs/build-support/templaterpm/default.nix
Normal file
24
pkgs/build-support/templaterpm/default.nix
Normal file
@ -0,0 +1,24 @@
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{stdenv, makeWrapper, python, toposort, rpm}:
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stdenv.mkDerivation rec {
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name = "nix-template-rpm-${version}";
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version = "0.1";
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buildInputs = [ makeWrapper python toposort rpm ];
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phases = [ "installPhase" "fixupPhase" ];
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installPhase = ''
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mkdir -p $out/bin
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cp ${./nix-template-rpm.py} $out/bin/nix-template-rpm
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wrapProgram $out/bin/nix-template-rpm \
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--set PYTHONPATH "${rpm}/lib/${python.libPrefix}/site-packages":"${toposort}/lib/${python.libPrefix}/site-packages"
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'';
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meta = with stdenv.lib; {
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description = "Create templates of nix expressions from RPM .spec files";
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maintainers = with maintainers; [ tstrobel ];
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platforms = with stdenv.lib.platforms; unix;
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hydraPlatforms = [];
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};
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}
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274
pkgs/build-support/templaterpm/nix-template-rpm.py
Executable file
274
pkgs/build-support/templaterpm/nix-template-rpm.py
Executable file
@ -0,0 +1,274 @@
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#!/bin/env python
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import sys
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import os
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import subprocess
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import argparse
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import shutil
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import rpm
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import urlparse
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import traceback
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import toposort
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class NixTemplateRPM(object):
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def __init__(self, specFilename, inputDir=None, maintainer="MAINTAINER"):
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rpm.addMacro("buildroot","$out")
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rpm.addMacro("_libdir","lib")
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rpm.addMacro("_libexecdir","libexec")
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rpm.addMacro("_sbindir","sbin")
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rpm.addMacro("_sysconfdir","etc")
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rpm.addMacro("_topdir","SPACER_DIR_FOR_REMOVAL")
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rpm.addMacro("_sourcedir","SOURCE_DIR_SPACER")
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ts = rpm.TransactionSet()
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self.specFilename = specFilename
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self.spec = ts.parseSpec(specFilename)
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self.inputDir = inputDir
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self.maintainer = maintainer
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self.packageGroups = [ "ocaml", "python" ]
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def rewriteCommands(self, string):
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string = string.replace('SPACER_DIR_FOR_REMOVAL/','')
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string = string.replace('SPACER_DIR_FOR_REMOVAL','')
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string = '\n'.join(map(lambda line: ' '.join(map(lambda x: x.replace('SOURCE_DIR_SPACER/','${./')+'}' if x.startswith('SOURCE_DIR_SPACER/') else x, line.split(' '))), string.split('\n')))
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string = string.replace('\n','\n ')
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string = string.rstrip()
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return string
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def rewriteName(self, string):
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parts = string.split('-')
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parts = filter(lambda x: not x == "devel", parts)
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parts = filter(lambda x: not x == "doc", parts)
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if len(parts) > 1 and parts[0] in self.packageGroups:
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return parts[0] + '-' + ''.join(parts[1:2] + map(lambda x: x.capitalize(), parts[2:]))
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else:
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return ''.join(parts[:1] + map(lambda x: x.capitalize(), parts[1:]))
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def rewriteInputs(self,target,inputs):
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camelcase = lambda l: l[:1] + map(lambda x: x.capitalize(), l[1:])
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filterDevel = lambda l: filter(lambda x: not x == "devel", l)
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filterDoc = lambda l: filter(lambda x: not x == "doc", l)
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rewrite = lambda l: ''.join(camelcase(filterDoc(filterDevel(l))))
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def filterPackageGroup(target):
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if target == None:
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return [ rewrite(x.split('-')) for x in inputs if (not x.split('-')[0] in self.packageGroups) or (len(x.split('-')) == 1) ]
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elif target in self.packageGroups:
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return [ target + '_' + rewrite(x.split('-')[1:]) for x in inputs if (x.split('-')[0] == target) and (len(x.split('-')) > 1)]
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else:
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raise Exception("Unknown target")
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return []
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if target == None:
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packages = filterPackageGroup(None)
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packages.sort()
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elif target in self.packageGroups:
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packages = filterPackageGroup(target)
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packages.sort()
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elif target == "ALL":
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packages = []
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for t in [None] + self.packageGroups:
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tmp = filterPackageGroup(t)
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tmp.sort()
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packages += tmp
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else:
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raise Exception("Unknown target")
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packages = []
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return packages
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def getBuildInputs(self,target=None):
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return self.rewriteInputs(target,self.spec.sourceHeader['requires'])
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def getSelf(self):
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name = self.spec.sourceHeader['name']
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if len(name.split('-')) > 1 and name.split('-')[0] in self.packageGroups:
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return self.rewriteInputs(name.split('-')[0], [self.spec.sourceHeader['name']])[0]
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else:
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return self.rewriteInputs(None, [self.spec.sourceHeader['name']])[0]
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def copyPatches(self, input_dir, output_dir):
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patches = [source for (source, _, flag) in self.spec.sources if flag==2]
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for filename in patches:
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shutil.copyfile(os.path.join(input_dir, filename), os.path.join(output_dir, filename))
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def copySources(self, input_dir, output_dir):
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filenames = [source for (source, _, flag) in self.spec.sources if flag==1 if not urlparse.urlparse(source).scheme in ["http", "https"] ]
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for filename in filenames:
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shutil.copyfile(os.path.join(input_dir, filename), os.path.join(output_dir, filename))
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@property
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def name(self):
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out = 'stdenv.mkDerivation {\n'
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out += ' name = "' + self.rewriteName(self.spec.sourceHeader['name']) + '-' + self.spec.sourceHeader['version'] + '";\n'
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out += ' version = "' + self.spec.sourceHeader['version'] + '";\n'
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return out
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@property
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def src(self):
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sources = [source for (source, _, flag) in self.spec.sources if flag==1 if urlparse.urlparse(source).scheme in ["http", "https"] ]
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out = ''
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for url in sources:
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p = subprocess.Popen(['nix-prefetch-url', url], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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output, err = p.communicate()
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sha256 = output[:-1] #remove new line
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out += ' src = fetchurl {\n'
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out += ' url = "' + url + '";\n'
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out += ' sha256 = "' + sha256 + '";\n'
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out += ' };\n'
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return out
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@property
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def patch(self):
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patches = [source for (source, _, flag) in self.spec.sources if flag==2]
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out = ' patches = [ ' + ' '.join(map(lambda x: './'+x, patches)) + ' ];\n'
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return out
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@property
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def buildInputs(self):
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out = ' buildInputs = [ '
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out += ' '.join(self.getBuildInputs("ALL"))
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out += ' ];\n'
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return out
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@property
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def configure(self):
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out = ' configurePhase = \'\'\n ' + self.rewriteCommands(self.spec.prep) + '\n \'\';\n';
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return out
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@property
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def build(self):
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out = ' buildPhase = \'\'\n ' + self.rewriteCommands(self.spec.build) + '\n \'\';\n';
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return out
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@property
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def install(self):
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out = ' installPhase = \'\'\n ' + self.rewriteCommands(self.spec.install) + '\n \'\';\n';
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return out
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@property
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def ocamlExtra(self):
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if "ocaml" in self.getBuildInputs("ALL"):
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return ' createFindlibDestdir = true;\n'
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else:
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return ''
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@property
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def meta(self):
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out = ' meta = {\n'
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out += ' homepage = ' + self.spec.sourceHeader['url'] + ';\n'
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out += ' description = "' + self.spec.sourceHeader['summary'] + '";\n'
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out += ' license = stdenv.lib.licenses.' + self.spec.sourceHeader['license'] + ';\n'
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out += ' platforms = [ "i686-linux" "x86_64-linux" ];\n'
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out += ' maintainers = with stdenv.lib.maintainers; [ ' + self.maintainer + ' ];\n'
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out += ' };\n'
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out += '}\n'
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return out
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def __str__(self):
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head = '{stdenv, fetchurl, ' + ', '.join(self.getBuildInputs("ALL")) + '}:\n\n'
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body = [ self.name, self.src, self.patch, self.buildInputs, self.configure, self.build, self.ocamlExtra, self.install, self.meta ]
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return head + '\n'.join(body)
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def __cmp__(self,other):
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if self.getSelf() in other.getBuildInputs("ALL"):
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return 1
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else:
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return -1
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def callPackage(self, output_dir):
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callPackage = ' ' + self.getSelf() + ' = callPackage ' + os.path.relpath(output_dir) + ' {'
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newline = False;
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for target in self.packageGroups:
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tmp = self.getBuildInputs(target)
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if len(tmp) > 0:
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newline = True;
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callPackage += '\n ' + 'inherit (' + target + 'Packages) ' + ' '.join(tmp) + ';'
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if newline:
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callPackage += '\n };'
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else:
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callPackage += ' };'
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return callPackage
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def generateTemplate(self, outputDir):
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output_dir = os.path.normpath( os.path.join(outputDir, self.rewriteName(self.spec.sourceHeader['name'])) )
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if not os.path.exists(output_dir):
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os.makedirs(output_dir)
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if self.inputDir != None:
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self.copySources(self.inputDir, output_dir)
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self.copyPatches(self.inputDir, output_dir)
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nixfile = open(os.path.join(output_dir,'default.nix'), 'w')
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nixfile.write(str(self))
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nixfile.close()
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shutil.copyfile(self.specFilename, os.path.join(output_dir, os.path.basename(self.specFilename)))
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self.pkgCall = self.callPackage(output_dir)
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if __name__ == "__main__":
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#Parse command line options
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parser = argparse.ArgumentParser(description="Generate .nix templates from RPM spec files")
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parser.add_argument("specs", metavar="SPEC", nargs="+", help="spec file")
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parser.add_argument("-o", "--output", metavar="OUT_DIR", required=True, help="output directory")
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parser.add_argument("-i", "--input", metavar="IN_DIR", default=None, help="input directory")
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parser.add_argument("-m", "--maintainer", metavar="MAINTAINER", required=True, help="package maintainer")
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args = parser.parse_args()
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nameMap = {}
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for specPath in args.specs:
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try:
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sys.stderr.write("INFO: generate nix file from: %s\n" % specPath)
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spec = NixTemplateRPM(specPath, args.input, args.maintainer)
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spec.generateTemplate(args.output)
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nameMap[spec.getSelf()] = spec
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except Exception, e:
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sys.stderr.write("ERROR: %s failed with:\n%s\n%s\n" % (specPath,e.message,traceback.format_exc()))
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graph = {}
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for k, v in nameMap.items():
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graph[k] = set(v.getBuildInputs("ALL"))
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sortedSpecs = toposort.toposort_flatten(graph)
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sortedSpecs = filter( lambda x: x in nameMap.keys(), sortedSpecs)
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print '\n\n'.join(map(lambda x: x.pkgCall, map(lambda x: nameMap[x], sortedSpecs)))
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@ -13000,6 +13000,8 @@ let
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nix-prefetch-scripts = callPackage ../tools/package-management/nix-prefetch-scripts { };
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nix-template-rpm = callPackage ../build-support/templaterpm { inherit (pythonPackages) python toposort; };
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nix-repl = callPackage ../tools/package-management/nix-repl { };
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nix-serve = callPackage ../tools/package-management/nix-serve { };
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@ -12967,6 +12967,22 @@ let
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};
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};
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toposort = buildPythonPackage rec {
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name = "toposort-${version}";
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version = "1.1";
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src = pkgs.fetchurl {
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url = "https://pypi.python.org/packages/source/t/toposort/toposort-1.1.tar.gz";
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sha256 = "1izmirbwmd9xrk7rq83p486cvnsslfa5ljvl7rijj1r64zkcnf3a";
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};
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meta = {
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description = "A topological sort algorithm";
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homepage = https://pypi.python.org/pypi/toposort/1.1;
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maintainers = [ stdenv.lib.maintainers.tstrobel ];
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platforms = stdenv.lib.platforms.linux;
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#license = stdenv.lib.licenses.apache;
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};
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};
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snapperGUI = buildPythonPackage rec {
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name = "Snapper-GUI";
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