def diff_packages(pkg1, pkg2=None):
"""Invoke a diff editor to show the difference between the source of two
packages.
Args:
pkg1 (`Package`): Package to diff.
pkg2 (`Package`): Package to diff against. If None, the next most recent
package version is used.
"""
if pkg2 is None:
it = iter_packages(pkg1.name)
pkgs = [x for x in it if x.version < pkg1.version]
if not pkgs:
raise RezError("No package to diff with - %s is the earliest "
"package version" % pkg1.qualified_name)
pkgs = sorted(pkgs, key=lambda x: x.version)
pkg2 = pkgs[-1]
def _check_pkg(pkg):
if not (pkg.vcs and pkg.revision):
raise RezError("Cannot diff package %s: it is a legacy format "
"package that does not contain enough information" %
pkg.qualified_name)
_check_pkg(pkg1)
_check_pkg(pkg2)
path = mkdtemp(prefix="rez-pkg-diff")
paths = []
for pkg in (pkg1, pkg2):
print("Exporting %s..." % pkg.qualified_name)
path_ = os.path.join(path, pkg.qualified_name)
vcs_cls_1 = plugin_manager.get_plugin_class("release_vcs", pkg1.vcs)
vcs_cls_1.export(revision=pkg.revision, path=path_)
paths.append(path_)
difftool = config.difftool
print("Opening diff viewer %s..." % difftool)
with Popen([difftool] + paths) as p:
p.wait()
def _check_pkg(pkg):
if not (pkg.vcs and pkg.revision):
raise RezError("Cannot diff package %s: it is a legacy format "
"package that does not contain enough information" %
pkg.qualified_name)
