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Partially support versioned provides

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With this patch, Britney will correctly parse (and deparse) a
versioned Provides.  Furthermore, she will allow it to satisfy any
unversioned dependency on the provided package.

This is the easy half of #786803.

Signed-off-by: Niels Thykier <niels@thykier.net>
This commit is contained in:
Niels Thykier 2016-03-22 15:12:53 +00:00
parent 8d94bbc212
commit 7fcb6e3354
2 changed files with 36 additions and 8 deletions
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29
britney.py
View File

@ -691,11 +691,24 @@ class Britney(object):
# register virtual packages and real packages that provide them
if dpkg[PROVIDES]:
parts = [p.strip() for p in dpkg[PROVIDES].split(",")]
for p in parts:
provides[p].add(pkg)
dpkg[PROVIDES] = parts
else: dpkg[PROVIDES] = []
parts = apt_pkg.parse_depends(dpkg[PROVIDES], False)
nprov = []
for or_clause in parts:
if len(or_clause) != 1:
msg = "Ignoring invalid provides in %s: Alternatives [%s]" % (str(pkg_id), str(or_clause))
self.__log(msg, type='W')
continue
for part in or_clause:
provided, version, op = part
if op != '' and op != '=':
msg = "Ignoring invalid provides in %s: %s (%s %s)" % (str(pkg_id), provided, op, version)
self.__log(msg, type='W')
continue
provides[provided].add(pkg)
nprov.append(part)
dpkg[PROVIDES] = nprov
else:
dpkg[PROVIDES] = []
# add the resulting dictionary to the package list
packages[pkg] = dpkg
@ -2086,7 +2099,8 @@ class Britney(object):
affected.update(inst_tester.negative_dependencies_of(rm_pkg_id))
# remove the provided virtual packages
for j in pkg_data[PROVIDES]:
for prov_rel in pkg_data[PROVIDES]:
j = prov_rel[0]
key = j + "/" + parch
if key not in undo['virtual']:
undo['virtual'][key] = provides_t_a[j].copy()
@ -2168,7 +2182,8 @@ class Britney(object):
binaries_t_a[binary] = new_pkg_data
inst_tester.add_testing_binary(updated_pkg_id)
# register new provided packages
for j in new_pkg_data[PROVIDES]:
for prov_rel in new_pkg_data[PROVIDES]:
j = prov_rel[0]
key = j + "/" + parch
if j not in provides_t_a:
undo['nvirtual'].append(key)

15
britney_util.py
View File

@ -418,6 +418,19 @@ def write_sources(sources_s, filename):
f.write(output + "\n\n")
def relation_atom_to_string(atom):
"""Take a parsed dependency and turn it into a string
"""
pkg, version, rel_op = atom
if rel_op != '':
if rel_op in ('<', '>'):
# APT translate "<<" and ">>" into "<" and ">". We have
# deparse those into the original form.
rel_op += rel_op
return "%s (%s %s)" % (pkg, rel_op, version)
return pkg
def write_controlfiles(sources, packages, suite, basedir):
"""Write the control files
@ -462,7 +475,7 @@ def write_controlfiles(sources, packages, suite, basedir):
output += (k + ": " + source + "\n")
elif key == PROVIDES:
if bin_data[key]:
output += (k + ": " + ", ".join(bin_data[key]) + "\n")
output += (k + ": " + ", ".join(relation_atom_to_string(p) for p in bin_data[key]) + "\n")
elif key == ESSENTIAL:
if bin_data[key]:
output += (k + ": " + " yes\n")