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08567ee311
Summary: This allows versions that don't know about storerequirements still access newly created repos with this version. We will turn this on at a later date. Reviewed By: singhsrb Differential Revision: D10033964 fbshipit-source-id: e1065e05c33544d0287eda5eb852baff07c13147
82 lines
1.9 KiB
Perl
82 lines
1.9 KiB
Perl
A new repository uses zlib storage, which doesn't need a requirement
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$ hg init default
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$ cd default
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$ cat .hg/requires
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dotencode
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fncache
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generaldelta
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revlogv1
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store
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treestate
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$ touch foo
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$ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text to trigger compression'
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$ hg debugrevlog -c | grep 0x78
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0x78 (x) : 1 (100.00%)
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0x78 (x) : 110 (100.00%)
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$ cd ..
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Unknown compression engine to format.compression aborts
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$ hg --config experimental.format.compression=unknown init unknown
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abort: compression engine unknown defined by experimental.format.compression not available
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(run "hg debuginstall" to list available compression engines)
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[255]
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A requirement specifying an unknown compression engine results in bail
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$ hg init unknownrequirement
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$ cd unknownrequirement
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$ echo exp-compression-unknown >> .hg/requires
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$ hg log
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abort: repository requires features unknown to this Mercurial: exp-compression-unknown!
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(see https://mercurial-scm.org/wiki/MissingRequirement for more information)
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[255]
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$ cd ..
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#if zstd
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$ hg --config experimental.format.compression=zstd init zstd
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$ cd zstd
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$ cat .hg/requires
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dotencode
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exp-compression-zstd
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fncache
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generaldelta
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revlogv1
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store
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treestate
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$ touch foo
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$ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text'
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$ hg debugrevlog -c | grep 0x28
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0x28 : 1 (100.00%)
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0x28 : 98 (100.00%)
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$ cd ..
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Specifying a new format.compression on an existing repo won't introduce data
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with that engine or a requirement
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$ cd default
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$ touch bar
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$ hg --config experimental.format.compression=zstd -q commit -A -m 'add bar with a lot of repeated repeated repeated text'
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$ cat .hg/requires
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dotencode
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fncache
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generaldelta
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revlogv1
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store
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treestate
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$ hg debugrevlog -c | grep 0x78
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0x78 (x) : 2 (100.00%)
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0x78 (x) : 199 (100.00%)
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#endif
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