Fix sync loop for too long path

mergin/client.py

@@ -67,6 +67,7 @@
     int_version,
     is_version_acceptable,
     normalize_role,
+    long_path,
 )
 from .version import __version__
 
@@ -1237,7 +1238,7 @@ def get_file_diff(self, project_dir, file_path, output_diff, version_from, versi
         # collect required versions from the cache
         diffs = []
         for v in versions_to_fetch[1:]:
-            diffs.append(mp.fpath_cache(file_history["history"][v]["diff"]["path"], v))
+            diffs.append(long_path(mp.fpath_cache(file_history["history"][v]["diff"]["path"], v)))
 
         # concatenate diffs, if needed
         output_dir = os.path.dirname(output_diff)
@@ -1377,13 +1378,15 @@ def reset_local_changes(self, directory: str, files_to_reset: typing.List[str] =
         # remove all added files
         for file in push_changes["added"]:
             if all_files or file["path"] in files_to_reset:
-                os.remove(mp.fpath(file["path"]))
+                os.remove(long_path(mp.fpath(file["path"])))
 
         # update files get override with previous version
         for file in push_changes["updated"]:
             if all_files or file["path"] in files_to_reset:
                 if mp.is_versioned_file(file["path"]):
-                    mp.geodiff.make_copy_sqlite(mp.fpath_meta(file["path"]), mp.fpath(file["path"]))
+                    mp.geodiff.make_copy_sqlite(
+                        long_path(mp.fpath_meta(file["path"])), long_path(mp.fpath(file["path"]))
+                    )
                 else:
                     files_download.append(file["path"])
 

mergin/client_pull.py

@@ -25,7 +25,7 @@
 from .common import CHUNK_SIZE, ClientError, DeltaChangeType, PullActionType
 from .models import ProjectDelta, ProjectDeltaChange, PullAction
 from .merginproject import MerginProject
-from .utils import cleanup_tmp_dir, save_to_file
+from .utils import cleanup_tmp_dir, save_to_file, long_path
 from typing import List, Optional
 
 # status = download_project_async(...)
@@ -93,7 +93,9 @@ def __init__(self, file_path, size, version, diff_only, part_index, download_fil
         self.version = version  # version of the file ("v123")
         self.diff_only = diff_only  # whether downloading diff or full version
         self.part_index = part_index  # index of the chunk
-        self.download_file_path = download_file_path  # full path to a temporary file which will receive the content
+        self.download_file_path = long_path(
+            download_file_path
+        )  # full path to a temporary file which will receive the content
 
     def __repr__(self):
         return "<DownloadQueueItem path={} version={} diff_only={} part_index={} size={} dest={}>".format(
@@ -128,7 +130,9 @@ class DownloadDiffQueueItem:
 
     def __init__(self, diff_id, download_file_path):
         self.diff_id = diff_id  # relative path to the file within project
-        self.download_file_path = download_file_path  # full path to a temporary file which will receive the content
+        self.download_file_path = long_path(
+            download_file_path
+        )  # full path to a temporary file which will receive the content
         self.size = 0  # size of the item in bytes
 
     def __repr__(self):
@@ -157,7 +161,7 @@ class DownloadFile:
     """
 
     def __init__(self, dest_file, downloaded_items: typing.List[DownloadQueueItem], size_check=True):
-        self.dest_file = dest_file  # full path to the destination file to be created
+        self.dest_file = long_path(dest_file)  # full path to the destination file to be created
         self.downloaded_items = downloaded_items  # list of pieces of the destination file to be merged
         self.size_check = size_check  # whether we want to do merged file size check
 
@@ -196,7 +200,7 @@ def get_download_items(
 
     items = []
     for part_index in range(chunks):
-        download_file_path = os.path.join(file_dir, basename + ".{}".format(part_index))
+        download_file_path = long_path(os.path.join(file_dir, basename + ".{}".format(part_index)))
         size = min(CHUNK_SIZE, file_size - part_index * CHUNK_SIZE)
         items.append(DownloadQueueItem(file_path, size, file_version, diff_only, part_index, download_file_path))
 
@@ -419,7 +423,7 @@ def apply(self, directory, mp):
         # Make a copy of the file to meta dir only if there is no user-specified path for the file.
         # destination_file is None for full project download and takes a meaningful value for a single file download.
         if mp.is_versioned_file(self.file_path) and self.destination_file is None:
-            mp.geodiff.make_copy_sqlite(mp.fpath(self.file_path), mp.fpath_meta(self.file_path))
+            mp.geodiff.make_copy_sqlite(long_path(mp.fpath(self.file_path)), long_path(mp.fpath_meta(self.file_path)))
 
 
 class PullJob:
@@ -479,7 +483,7 @@ def get_download_diff_files(delta_item: ProjectDeltaChange, target_dir: str) ->
     result = []
 
     for diff in delta_item.diffs:
-        dest_file_path = os.path.normpath(os.path.join(target_dir, diff.id))
+        dest_file_path = long_path(os.path.normpath(os.path.join(target_dir, diff.id)))
         download_items = get_download_items(delta_item.path, diff.size, diff.version, target_dir, diff.id, True)
         result.append(DownloadFile(dest_file_path, download_items))
     return result
@@ -555,7 +559,7 @@ def pull_project_async(mc, directory) -> Optional[PullJob]:
             pull_action_type == PullActionType.COPY_CONFLICT and change.type == DeltaChangeType.UPDATE_DIFF
         ):
             basefile = mp.fpath_meta(change.path)
-            if not os.path.exists(basefile):
+            if not os.path.exists(long_path(basefile)):
                 # The basefile does not exist for some reason. This should not happen normally (maybe user removed the file
                 # or we removed it within previous pull because we failed to apply patch the older version for some reason).
                 # But it's not a problem - we will download the newest version and we're sorted.
@@ -722,7 +726,7 @@ def pull_project_finalize(job: PullJob):
         basefile = job.mp.fpath_meta(file_path)
         server_file = job.mp.fpath(file_path, job.tmp_dir.name)
 
-        shutil.copy(basefile, server_file)
+        shutil.copy(long_path(basefile), long_path(server_file))
         diffs = [job.mp.fpath(f, job.tmp_dir.name) for f in file_diffs]
         patch_error = job.mp.apply_diffs(server_file, diffs)
         if patch_error:
@@ -735,7 +739,7 @@ def pull_project_finalize(job: PullJob):
             job.mp.log.error("Diffs we were applying: " + str(diffs))
             job.mp.log.error("Removing basefile because it would be corrupted anyway...")
             job.mp.log.info("--- pull aborted")
-            os.remove(basefile)
+            os.remove(long_path(basefile))
             raise ClientError("Cannot patch basefile {}! Please try syncing again.".format(basefile))
     conflicts = []
     job.mp.log.info(f"--- applying pull actions {job.pull_actions}")
@@ -829,7 +833,7 @@ def download_diffs_async(mc, project_directory, file_path, versions):
             download_path=diff.get("path"),
             diff_only=True,
         )
-        dest_file_path = mp.fpath_cache(diff["path"], version=file["version"])
+        dest_file_path = long_path(mp.fpath_cache(diff["path"], version=file["version"]))
         if os.path.exists(dest_file_path):
             continue
         download_files.append(DownloadFile(dest_file_path, items))

mergin/client_push.py

@@ -34,7 +34,7 @@
 )
 from .merginproject import MerginProject, pygeodiff
 from .editor import filter_changes
-from .utils import get_data_checksum, cleanup_tmp_dir
+from .utils import get_data_checksum, cleanup_tmp_dir, long_path
 
 POST_JSON_HEADERS = {"Content-Type": "application/json"}
 
@@ -114,7 +114,7 @@ def upload_chunk_v2_api(self, data: ByteString, checksum: str):
         self.mc.upload_chunks_cache.add(checksum, self.server_chunk_id)
 
     def upload_blocking(self):
-        with open(self.file_path, "rb") as file_handle:
+        with open(long_path(self.file_path), "rb") as file_handle:
             file_handle.seek(self.chunk_index * UPLOAD_CHUNK_SIZE)
             data = file_handle.read(UPLOAD_CHUNK_SIZE)
             checksum_str = get_data_checksum(data)
@@ -507,7 +507,7 @@ def remove_diff_files(job: UploadJob) -> None:
     for change in job.changes.updated:
         diff = change.get_diff()
         if diff:
-            diff_file = job.mp.fpath_meta(diff.path)
+            diff_file = long_path(job.mp.fpath_meta(diff.path))
             if os.path.exists(diff_file):
                 os.remove(diff_file)