gvfs-helper prefetch #223
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gvfs-helper prefetch #223
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jeffhostetler
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jeffhostetler
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derrickstolee,
dscho,
garimasi514,
jrbriggs,
kewillford and
wilbaker
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This version now has a gh_client__prefetch() API to let us easily slip in prefetch calls |
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jeffhostetler
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Teach gvfs-helper to support "/gvfs/prefetch" REST API. This includes a new `gvfs-helper prefetch --since=<t>` command line option. And a new `objects.prefetch` verb in `gvfs-helper server` mode. If `since` argument is omitted, `gvfs-helper` will search the local shared-cache for the most recent prefetch packfile and start from there. The <t> is usually a seconds-since-epoch, but may also be a "friendly" date -- such as "midnight", "yesterday" and etc. using the existing date selection mechanism. Add `gh_client__prefetch()` API to allow `git.exe` to easily call prefetch (and using the same long-running process as immediate and queued object fetches). Expanded t5799 unit tests to include prefetch tests. Test setup now also builds some commits-and-trees packfiles for testing purposes with well-known timestamps. Expanded t/helper/test-gvfs-protocol.exe to support "/gvfs/prefetch" REST API. Massive refactor of existing packfile handling in gvfs-helper.c to reuse more code between "/gvfs/objects POST" and "/gvfs/prefetch". With this we now properly name packfiles with the checksum SHA1 rather than a date string. Refactor also addresses some of the confusing tempfile setup and install_<result> code processing (introduced to handle the ambiguity of how POST works with commit objects). Signed-off-by: Jeff Hostetler <[email protected]>
Signed-off-by: Jeff Hostetler <[email protected]>
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I just rebased this forward to refresh the CI build. |
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Starting a new build because Friday's failed because of disk space in the artifact store. |
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/azp run microsoft.git |
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Azure Pipelines successfully started running 1 pipeline(s). |
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Closing in favor of #227. |
derrickstolee
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Dec 17, 2019
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
derrickstolee
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Dec 17, 2019
See microsoft/git#223 for details. Resolves #141. * [x] Call `git gvfs-helper prefetch` in `scalar maintenance fetch-commits-and-trees` * [x] Delete existing prefetch logic in the C# layer.
derrickstolee
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Dec 30, 2019
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
derrickstolee
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Jan 14, 2020
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
derrickstolee
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Feb 21, 2020
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
derrickstolee
added a commit
that referenced
this pull request
Mar 17, 2020
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
derrickstolee
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Mar 23, 2020
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
dscho
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May 20, 2020
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
dscho
pushed a commit
that referenced
this pull request
May 20, 2020
This replaces #223. There was a strangely-subtle issue about reading the trailing hash from the downloaded packs that caused issues when reading from the origin remote. Add `gvfs-helper prefetch` command line option and `objects.prefetch` mode in `gvfs-helper server`. Sorry, but this contains a major refactor of the packfile and loose file handling to let me share it with the prefetch code. As a side benefit, I collapsed the tempfile creation before the request goes out and merged the install_ code after the result is returned. I also changed packfile code to use the packfile-checksum rather than a timestamp so that we look more like normal Git. More details are in the commit message.
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[This is ready for review.]
Add
gvfs-helper prefetchcommand line optionand
objects.prefetchmode ingvfs-helper server.Sorry, but this contains a major refactor of the packfile and loose file handling
to let me share it with the prefetch code. As a side benefit, I collapsed the
tempfile creation before the request goes out and merged the install_ code
after the result is returned.
I also changed packfile code to use the packfile-checksum rather than a
timestamp so that we look more like normal Git.
More details are in the commit message.