Files
S.P.L.U.R.T-Station-13/tools/mapmerge2/precommit.py
Tad Hardesty 61f00cbfb0 Add a new and improved mapmerge (#33869)
Key benefits of the new mapmerge include: multi-Z support, effective
reuse of deleted keys, automatic handling of key overflow, and utilizing
a git pre-commit hook to eliminate the need to run batch files manually.
2017-12-29 00:28:25 -06:00

51 lines
1.8 KiB
Python

#!/usr/bin/env python3
import os
import pygit2
import dmm
from mapmerge import merge_map
def main(repo):
if repo.index.conflicts:
print("You need to resolve merge conflicts first.")
return 1
changed = 0
for path, status in repo.status().items():
if path.endswith(".dmm") and (status & (pygit2.GIT_STATUS_INDEX_MODIFIED | pygit2.GIT_STATUS_INDEX_NEW)):
# read the index
index_entry = repo.index[path]
index_map = dmm.DMM.from_bytes(repo[index_entry.id].read_raw())
try:
head_blob = repo[repo[repo.head.target].tree[path].id]
except KeyError:
# New map, no entry in HEAD
print(f"Converting new map: {path}")
assert (status & pygit2.GIT_STATUS_INDEX_NEW)
merged_map = index_map
else:
# Entry in HEAD, merge the index over it
print(f"Merging map: {path}")
assert not (status & pygit2.GIT_STATUS_INDEX_NEW)
head_map = dmm.DMM.from_bytes(head_blob.read_raw())
merged_map = merge_map(index_map, head_map)
# write to the index
blob_id = repo.create_blob(merged_map.to_bytes())
repo.index.add(pygit2.IndexEntry(path, blob_id, index_entry.mode))
changed += 1
# write to the working directory if that's clean
if status & (pygit2.GIT_STATUS_WT_DELETED | pygit2.GIT_STATUS_WT_MODIFIED):
print(f"Warning: {path} has unindexed changes, not overwriting them")
else:
merged_map.to_file(os.path.join(repo.workdir, path))
if changed:
repo.index.write()
print(f"Merged {changed} maps.")
return 0
if __name__ == '__main__':
exit(main(pygit2.Repository(pygit2.discover_repository(os.getcwd()))))