Re: Daniel Burrows in <[🔎] 200502251314.09459.dburrows@debian.org> > I'd imagine that it doesn't use mv for the same reason "install" doesn't; > ie, its purpose is to COPY files, not MOVE them. As I understood it, the question was about moving stuff from debian/tmp to debian/package. The stuff in debian/tmp should get removed by the clean target anyway, so it doesn't hurt to move instead of copying it. > Anyway, I thought you were joking in your first message, but it looks like > you're serious, so I'll answer this time. If you're copying between files on > the same device, mv will use the rename(2) system call, which is an atomic > operation: ie, it doesn't "copy" the source files at all, it just links them > into the target directory. If you're copying between devices, mv will > presumably copy the whole file before deleting it -- to actually remove a > file "block-by-block" would mean a whole lot of totally pointless extra work > in order to make the program less robust (there's no direct way to delete the > first block of a file, so you'd have to either copy from the back or shift > the whole file back a block at a time and then truncate it). I doubt that any subdirs of a package build directory will ever be on a different mount point than the directory itself ;-) Christoph -- cb@df7cb.de | http://www.df7cb.de/
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