epicknex/hererocks
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add version to manifest

Browse Source 
Increment when changing manifest format in breaking ways so that
upgrading hererocks doesn't result in a crash.
This commit is contained in:
mpeterv 2016-04-03 21:19:44 +03:00
parent a1f4f47f2f
commit 24da318802
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
hererocks.py
View File

@ -990,17 +990,26 @@ class LuaRocks(Program):
def get_manifest_name(): def get_manifest_name():
return os.path.join(opts.location, "hererocks.manifest") return os.path.join(opts.location, "hererocks.manifest")
manifest_version = 1
def get_installed_identifiers(): def get_installed_identifiers():
if not os.path.exists(get_manifest_name()): if not os.path.exists(get_manifest_name()):
return {} return {}
with open(get_manifest_name()) as manifest_h: with open(get_manifest_name()) as manifest_h:
try: try:
return json.load(manifest_h) identifiers = json.load(manifest_h)
except ValueError: except ValueError:
return {} return {}
if identifiers.get("version") == manifest_version:
return identifiers
else:
return {}
def save_installed_identifiers(all_identifiers): def save_installed_identifiers(all_identifiers):
all_identifiers["version"] = manifest_version
with open(get_manifest_name(), "w") as manifest_h: with open(get_manifest_name(), "w") as manifest_h:
json.dump(all_identifiers, manifest_h) json.dump(all_identifiers, manifest_h)