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filelog: cmp: don't read data if hashes are identical (issue2273)...

filelog: cmp: don't read data if hashes are identical (issue2273) filelog.renamed() is an expensive call as it reads the filelog if p1 == nullid. It's more efficient to first compute the hash, and to bail early if the computed hash is the same as the stored nodeid. 'samehashes' variable is not strictly necessary, but helps for comprehension.

Nicolas Dumazet -


            r11541:ab9fa7a8

stable

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README

Basic install:

$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
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