Commit Briefs

Omar Polo

remove now unused sha1 handling from inflate and deflate

both were changed to use the new got_hash APIs.

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Omar Polo

add some helper functions to compute hashes

This adds a set of functions to abstract over SHA1Init, SHA1Update, SHA1Final, their respective SHA256 variants and how to compare digests. Replace all the SHA1*() usage with the new APIs. It's a preparatory step for sha256 handling. ok stsp@

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Stefan Sperling

make got_pack_create() write to a file descriptor instead of a stdio FILE

The old code required a seekable output file. This conflicts with requirements of future gotd(8), which will write pack file data to network sockets. ok op@

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Stefan Sperling

store deltas in compressed form while packing, both in memory and cache file

This reduces memory and disk space consumption during packing. with tweaks + memleak on error fix from op@ ok op@

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Stefan Sperling

compress delta data from delta_cache directly into pack file

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Stefan Sperling

map raw object files into memory while packing if possible

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Christian Weisgerber

match the unsigned char type used by the zlib interface

ok stsp

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Stefan Sperling

simplify deflate checksumming code; fixes errors with upcoming 'gotadmin pack'

tweak + ok naddy

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Stefan Sperling

add checksum support to got_deflate_to_file()

This will eventually be used by 'gotadmin pack'. Checksum init and finalization will need to be done by the caller since many objects will be written out in compressed form while we are computing checksums across the entire pack file. ok millert, naddy

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Stefan Sperling

add some initial code for zlib compression

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