npm on Cygwin fails with tar extraction errors despite cache purges. Any workaround?
ERR! runCmd: tar --unpack encountered an abrupt file end; extraction aborted.
I recently ran into a similar problem with npm on Cygwin and found that the issue could be related to the way tar handles files on certain file systems. My workaround was to switch to using the native Windows tar and then calling it from Cygwin instead of relying on the bundled version. This approach helped avoid abrupt end-of-file errors during extraction. I also verified that file permissions and paths were correctly set, as sometimes Cygwin’s mounting can interfere with extraction operations, leading to incomplete file reads.
In my experience dealing with similar npm issues under Cygwin, device-specific problems can also result from mismatched file handling between Cygwin and native Windows utilities. A solution that worked for me was to set the npm temporary directory to a path that avoids Cygwin’s mount points, thereby preventing possible corruption during extraction. Additionally, verifying that both npm and node are updated to the latest versions helped alleviate underlying compatibility issues. This approach ensured that tar operations were more reliable and the extraction errors were reduced significantly.