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Joey Hess 2cecc8d2a3
Added GIT_ANNEX_VECTOR_CLOCK environment variable 
Can be used to override the default timestamps used in log files in the
git-annex branch. This is a dangerous environment variable; use with
caution.

Note that this only affects writing to the logs on the git-annex branch.
It is not used for metadata in git commits (other env vars can be set for
that).

There are many other places where timestamps are still used, that don't
get committed to git, but do touch disk. Including regular timestamps
of files, and timestamps embedded in some files in .git/annex/, including
the last fsck timestamp and timestamps in transfer log files.

A good way to find such things in git-annex is to get for getPOSIXTime and
getCurrentTime, although some of the results are of course false positives
that never hit disk (unless git-annex gets swapped out..)

So this commit does NOT necessarily make git-annex comply with some HIPPA
privacy regulations; it's up to the user to determine if they can use it in
a way compliant with such regulations.

Benchmarking: It takes 0.00114 milliseconds to call getEnv
"GIT_ANNEX_VECTOR_CLOCK" when that env var is not set. So, 100 thousand log
files can be written with an added overhead of only 0.114 seconds. That
should be by far swamped by the actual overhead of writing the log files
and making the commit containing them.

This commit was supported by the NSF-funded DataLad project.
2017-08-14 14:19:58 -04:00
..
Add.hs git annex add -u now supported, analagous to git add -u 2017-04-07 15:55:45 -04:00
AddUnused.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
AddUrl.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
Adjust.hs adjust: Add --fix adjustment, which is useful when the git directory is in a nonstandard place. 2016-05-16 17:18:33 -04:00
Assistant.hs assistant: Make --autostart --foreground wait for the children it starts. 2017-02-07 13:31:45 -04:00
Benchmark.hs change keys database to use IKey type with more efficient serialization 2016-01-12 14:01:50 -04:00
CalcKey.hs calckey: New plumbing command, calculates the key that would be used to refer to a file 2016-04-20 13:50:26 -04:00
CheckPresentKey.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Commit.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Config.hs inheritable annex.securehashesonly 2017-02-27 16:08:23 -04:00
ConfigList.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
ContentLocation.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Copy.hs move --to=here 2017-05-31 17:00:18 -04:00
Dead.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Describe.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
DiffDriver.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Direct.hs correct spelling mistakes 2017-02-12 17:30:23 -04:00
Drop.hs support parsing options like --to=here 2017-05-31 16:49:28 -04:00
DropKey.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
DropUnused.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
EnableRemote.hs enableremote: Fix re-enabling of existing gcrypt remotes, so that eg, encryption key changes take effect. 2017-04-07 13:51:09 -04:00
EnableTor.hs refactor 2016-12-30 12:31:17 -04:00
ExamineKey.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Expire.hs Added GIT_ANNEX_VECTOR_CLOCK environment variable 2017-08-14 14:19:58 -04:00
Find.hs add KeyVariety type 2017-02-24 15:16:56 -04:00
FindRef.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Fix.hs fix build warning on windows and android 2016-05-05 15:49:56 -04:00
Forget.hs Added GIT_ANNEX_VECTOR_CLOCK environment variable 2017-08-14 14:19:58 -04:00
FromKey.hs Make all --batch input, as well as fromkey and registerurl stdin be processed without requiring it to be in the current encoding. 2016-12-13 15:35:04 -04:00
Fsck.hs fsck: Support --json. 2017-06-26 13:40:57 -04:00
FuzzTest.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
GCryptSetup.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Get.hs support parsing options like --to=here 2017-05-31 16:49:28 -04:00
Group.hs make query commands not output extraneous messages 2017-02-16 13:24:35 -04:00
GroupWanted.hs make query commands not output extraneous messages 2017-02-16 13:24:35 -04:00
Help.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Import.hs import --reinject-duplicates 2017-02-09 15:41:00 -04:00
ImportFeed.hs Drop support for building with old versions of directory, feed, and http-types. 2017-03-10 15:57:41 -04:00
InAnnex.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Indirect.hs annex.securehashesonly 2017-02-27 13:33:59 -04:00
Info.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
Init.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
InitRemote.hs initremote: When a uuid= parameter is passed, use the specified UUID for the new special remote, instead of generating a UUID. 2017-02-07 15:10:41 -04:00
List.hs adeiu, MissingH 2017-05-16 01:03:52 -04:00
Lock.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
LockContent.hs git-annex-shell, remotedaemon, git remote: Fix some memory DOS attacks. 2016-12-09 13:34:32 -04:00
Log.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
LookupKey.hs Fix reversion in lookupkey, contentlocation, and examinekey which caused them to sometimes output side messages. 2016-01-29 13:20:24 -04:00
Map.hs Support GIT_SSH and GIT_SSH_COMMAND 2017-03-17 16:20:37 -04:00
MatchExpression.hs matchexpression: Added --largefiles option to parse an annex.largefiles expression. 2016-02-03 16:58:36 -04:00
Merge.hs configuration to disable automatic merge conflict resolution 2017-06-01 12:51:01 -04:00
MetaData.hs Added GIT_ANNEX_VECTOR_CLOCK environment variable 2017-08-14 14:19:58 -04:00
Migrate.hs annex.backend is the new name for what was annex.backends 2017-05-09 15:04:07 -04:00
Mirror.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
Move.hs support --to=. as shorthand for --to=here 2017-06-01 13:12:42 -04:00
Multicast.hs fix windows build 2017-04-05 11:19:29 -04:00
NotifyChanges.hs make tor hidden service work when directory watching is not available 2016-12-09 16:40:47 -04:00
NumCopies.hs make query commands not output extraneous messages 2017-02-16 13:24:35 -04:00
P2P.hs rename to avoid name conflict 2017-05-11 18:31:14 -04:00
PostReceive.hs configuration to disable automatic merge conflict resolution 2017-06-01 12:51:01 -04:00
PreCommit.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Proxy.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
ReadPresentKey.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
RecvKey.hs get, move, copy, mirror: Added --failed switch which retries failed copies/moves 2016-08-03 12:37:12 -04:00
RegisterUrl.hs Make all --batch input, as well as fromkey and registerurl stdin be processed without requiring it to be in the current encoding. 2016-12-13 15:35:04 -04:00
Reinit.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Reinject.hs annex.securehashesonly 2017-02-27 13:33:59 -04:00
ReKey.hs rekey --force: Incorrectly marked the new key's content as being present in the local repo even when it was not. 2016-12-19 18:18:57 -04:00
RemoteDaemon.hs remotedaemon: serve tor hidden service 2016-11-20 15:48:12 -04:00
Repair.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Required.hs started converting to use optparse-applicative 2015-07-08 13:36:25 -04:00
ResolveMerge.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
RmUrl.hs rekey: Added --batch mode. 2016-12-05 12:55:50 -04:00
Schedule.hs make query commands not output extraneous messages 2017-02-16 13:24:35 -04:00
Semitrust.hs convert all commands to work with optparse-applicative 2015-07-08 15:08:02 -04:00
SendKey.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
SetKey.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
SetPresentKey.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Smudge.hs add KeyVariety type 2017-02-24 15:16:56 -04:00
Status.hs status: Propigate nonzero exit code from git status. 2017-03-02 14:09:42 -04:00
Sync.hs configuration to disable automatic merge conflict resolution 2017-06-01 12:51:01 -04:00
Test.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
TestRemote.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
TransferInfo.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
TransferKey.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
TransferKeys.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00
Trust.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
Unannex.hs correct spelling mistakes 2017-02-12 17:30:23 -04:00
Undo.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Ungroup.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Uninit.hs adeiu, MissingH 2017-05-16 01:03:52 -04:00
Unlock.hs upgrade: Handle upgrade to v6 when the repository already contains v6 unlocked files whose content is already present. 2016-10-17 15:19:47 -04:00
Untrust.hs convert all commands to work with optparse-applicative 2015-07-08 15:08:02 -04:00
Unused.hs unused: When large files are checked right into git, avoid buffering their contents in memory. 2017-01-31 19:09:37 -04:00
Upgrade.hs When auto-upgrading a v3 remote, avoid upgrading to version 6, instead keep it at version 5. 2016-10-05 16:23:09 -04:00
VAdd.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
VCycle.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Version.hs version: Added "dependency versions" line. 2017-04-07 18:16:11 -04:00
VFilter.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Vicfg.hs make git annex config settings editable in vicfg 2017-01-30 17:08:05 -04:00
View.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
VPop.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Wanted.hs make query commands not output extraneous messages 2017-02-16 13:24:35 -04:00
Watch.hs remove 163 lines of code without changing anything except imports 2016-01-20 16:36:33 -04:00
WebApp.hs Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors. 2016-11-15 21:29:54 -04:00
Whereis.hs AssociatedFile newtype 2017-03-10 13:35:31 -04:00