From: Quentin Smith <quentin@mit.edu>
Date: Sat, 15 Oct 2011 15:31:35 +0000 (-0400)
Subject: Add a prefix to binary package versions based on the distribution they
X-Git-Tag: 0.1.11^0
X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-dev.git/commitdiff_plain/d6660755c5b38b89e3b9ec852f17502f6c59e806

Add a prefix to binary package versions based on the distribution they
are built for, allowing the same version to coexist for multiple
distributions
---

diff --git a/SbuildHack.pm b/SbuildHack.pm
new file mode 100644
index 0000000..ed9c866
--- /dev/null
+++ b/SbuildHack.pm
@@ -0,0 +1,18 @@
+package SbuildHack;
+
+use Sbuild qw(binNMU_version);
+
+sub new_binNMU_version {
+    my $v = shift;
+    my $binNMUver = shift;
+    die("Wrong binNMUver!") unless ($binNMUver == 171717);
+    die("No NMUTAG set in environment!") unless ($ENV{"NMUTAG"});
+    return $v . $ENV{"NMUTAG"};
+};
+
+{
+    no warnings 'redefine';
+    *Sbuild::binNMU_version = \&new_binNMU_version;
+}
+
+1;
diff --git a/debian/changelog b/debian/changelog
index 4d07161..a07f957 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+invirt-dev (0.1.11) unstable; urgency=low
+
+  * Add a prefix to binary package versions based on the distribution they
+    are built for, allowing the same version to coexist for multiple
+    distributions
+
+ -- Quentin Smith <quentin@mit.edu>  Sat, 15 Oct 2011 11:30:57 -0400
+
 invirt-dev (0.1.10) unstable; urgency=low
 
   * Improve zephyr notifications
diff --git a/debian/invirt-dev.install b/debian/invirt-dev.install
index 471b2e2..91e2716 100644
--- a/debian/invirt-dev.install
+++ b/debian/invirt-dev.install
@@ -3,3 +3,4 @@ invirt-configure-git-hooks usr/bin
 repository-config/* srv/repository/conf
 build-hooks usr/share/invirt-dev
 git-hooks usr/share/invirt-dev
+SbuildHack.pm usr/share/invirt-dev
diff --git a/invirtibuilder b/invirtibuilder
index b6d4eb8..b4487b9 100755
--- a/invirtibuilder
+++ b/invirtibuilder
@@ -47,7 +47,6 @@ from invirt import database
 from invirt.config import structs as config
 
 
-DISTRIBUTION = 'hardy'
 logfile = None
 
 def logAndRun(cmd, *args, **kwargs):
@@ -124,22 +123,32 @@ def aptCopy(package, commit, dst_pocket, src_pocket):
                package] + binaries)
 
 
-def sbuild(package, ref, arch, workdir, arch_all=False):
-    """Build a package for a particular architecture."""
-    args = ['sbuild', '-v', '-d', DISTRIBUTION, '--arch', arch]
+def sbuild(package, ref, distro, arch, workdir, arch_all=False):
+    """Build a package for a particular architecture and distro."""
+    # We append a suffix like ~ubuntu8.04 to differentiate the same
+    # version built for multiple distros
+    nmutag = b.distroToSuffix(distro)
+    env = os.environ.copy()
+    env['NMUTAG'] = nmutag
+
+    # Run sbuild with a hack in place to append arbitrary versions
+    args = ['perl', '-I/usr/share/invirt-dev',
+            '/usr/bin/sbuild',
+            '--binNMU=171717', '--make-binNMU=Build with sbuild',
+            '-v', '-d', distro, '--arch', arch]
     if arch_all:
         args.append('-A')
     args.append(getDscName(package, ref))
-    logAndRun(args, cwd=workdir)
+    logAndRun(args, cwd=workdir, env=env)
 
 
-def sbuildAll(package, ref, workdir):
+def sbuildAll(package, ref, distro, workdir):
     """Build a package for all architectures it supports."""
     arches = getArches(package, ref)
     if 'all' in arches or 'any' in arches or 'amd64' in arches:
-        sbuild(package, ref, 'amd64', workdir, arch_all=True)
+        sbuild(package, ref, distro, 'amd64', workdir, arch_all=True)
     if 'any' in arches or 'i386' in arches:
-        sbuild(package, ref, 'i386', workdir)
+        sbuild(package, ref, distro, 'i386', workdir)
 
 
 def tagSubmodule(pocket, package, commit, principal, version, env):
diff --git a/python/invirt/builder.py b/python/invirt/builder.py
index 2e2e405..1a736bd 100644
--- a/python/invirt/builder.py
+++ b/python/invirt/builder.py
@@ -19,10 +19,27 @@ _REPO_DIR = '/srv/git'
 _LOG_DIR = '/var/log/invirt/builds'
 _HOOKS_DIR = '/usr/share/invirt-dev/build-hooks'
 
+_DEFAULT_DISTRIBUTION = 'hardy'
+
 
 class InvalidBuild(ValueError):
     pass
 
+_DISTRO_TO_SUFFIX = {
+    'etch': '~debian4.0',
+    'lenny': '~debian5.0',
+    'squeeze': '~debian6.0',
+
+    'hardy': '~ubuntu8.04',
+    'lucid': '~ubuntu10.04',
+    'maverick': '~ubuntu10.10',
+    'natty': '~ubuntu11.04',
+    'oneiric': '~ubuntu11.10',
+    'precise': '~ubuntu12.04',
+    }
+
+def distroToSuffix(distro):
+    return _DISTRO_TO_SUFFIX.get(distro, '~'+distro)
 
 def getRepo(package):
     """Return the path to the git repo for a given package."""
@@ -59,6 +76,9 @@ def pocketToApt(pocket):
     """Map a pocket in the configuration to an apt repo pocket."""
     return getattr(getattr(config.build.pockets, pocket), 'apt', pocket)
 
+def pocketToDistro(pocket):
+    """Map a pocket in the configuration to the distro we build for."""
+    return getattr(getattr(config.build.pockets, pocket), 'distro', _DEFAULT_DISTRIBUTION)
 
 def getGitFile(package, ref, path):
     """Return the contents of a path from a git ref in a package."""
@@ -116,6 +136,7 @@ def validateBuild(pocket, package, commit):
     ensureValidPackage(package)
     package_repo = getRepo(package)
     new_version = getVersion(package, commit)
+    new_distro = pocketToDistro(pocket)
 
     ret = True
 
@@ -132,8 +153,12 @@ def validateBuild(pocket, package, commit):
             continue
 
         current_version = getVersion(package, b)
+        current_distro = pocketToDistro(pocket)
+
+        # NB: Neither current_version nor new_version will have the
+        # distro-specific prefix.
 
-        if current_version == new_version:
+        if current_version == new_version and current_distro == new_distro:
             if current_commit == commit:
                 ret = p
             else: