never write accum_buf on error in got_pack_dump_delta_chain_to_file() and also avoid to override `err' if fwrite fails. ok millert, stsp

plug memory leak in got_pack_dump_delta_chain_to_file() found by smatch. ok stsp@

change got_packidx_match_id_str_prefix not to reset the stailq Since it appends to the given stailq, the ownership is moved and so don't initialize/reset it at the start and neither on error. The caller has to take care of the contents. (kind of) follow up to 2234939fb4. Based upon an original diff from jamsek; ok jamsek

whitespace

cache delta base fulltexts when dumping a delta chain to a file

do not forget to flush after writing a cached fulltext to a temporary file Fixes the following error during gotadmin pack -a: gotadmin: raw object has unexpected size

really store the fulltext of delta-base objects in fulltext cache

style tweaks from jamsek

cache fulltext data in delta cache to improve speed with long delta chains ok jamsek

remove dependency of gitwrapper, gotctl, and gotsh on object_parse.c Move some functions from object_parse.c into hash.c. These functions either require hash.c code anyway or contain object ID implementation internals. Add a new file object_qid.c, for got_object_id_queue and got_object_qid. This new file must be linked to virtually every program.

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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@

rename lib/sha1.c to lib/hash.c It will soon grow functions to deal with sha256 too. stsp@ agrees.

include sha2.h too where sha1.h is included In preparation for wide sha256 support; stsp@ agrees. Change done mechanically with find . -iname \*.[cy] -exec sam {} + X ,x/<sha1\.h>/i/\n#include <sha2.h>

use SHA1_DIGEST_LENGTH instead of sizeof(id) ok stsp