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Author SHA1 Message Date
John Ericson 18152406ce String .drv suffix to create derivation name 2020-07-12 15:40:14 +00:00
John Ericson 5d0b75e5b6 std::string_view for new derivation name parameters 2020-07-12 15:02:36 +00:00
Maximilian Bosch 64f03635d7
Fix ANSI color constants 
The `m` acts as termination-symbol when declaring graphics. Because
of this, the `;1m` doesn't have any effect and is directly printed to
the console:

```
$ nix repl
> builtins.fetchGit { /* ... */ }
{ outPath = "/nix/store/s0f0iz4a41cxx2h055lmh6p2d5k5bc6r-source"; rev = "e73e45b723a9a6eecb98bd5f3df395d9ab3633b6"; revCount = ;1m428; shortRev = "e73e45b"; submodules = ;1mfalse; }
```

Introduced by 6403508f5a.
 2020-07-12 16:52:20 +02:00
John Ericson 13ec627e0a Set derivation name in dervationStrict 2020-07-12 03:03:12 +00:00
John Ericson 1c9bec226f Don't improperly assume path is store path 2020-07-12 02:38:03 +00:00
John Ericson abea26a968 BasicDerivation::findOutput cannot return reference anymore 2020-07-12 01:57:06 +00:00
John Ericson 442d43178b Merge remote-tracking branch 'upstream/master' into optional-derivation-output-storepath 2020-07-11 02:27:45 +00:00
Matthew Bauer acb74d4d94 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-07-10 18:13:45 -04:00
Eelco Dolstra 8efa23bb99 Avoid a redundant hash 2020-07-10 15:56:24 +02:00
Eelco Dolstra 5dff49f661 Factor out commonality between nix-prefetch-url and nix-store --add-fixed 2020-07-10 13:21:37 +02:00
Eelco Dolstra 7f1a86d57c nix-store --add-fixed: Run in constant memory 2020-07-10 12:51:56 +02:00
Eelco Dolstra 06e3dd9005 nix-prefetch-url: Run in constant memory when using RemoteStore 
Fixes #3684.
 2020-07-10 11:22:48 +02:00
Matthew Bauer a7884970c5 Fix DerivationOutputExtensional name 2020-07-09 11:37:18 -04:00
Eelco Dolstra a2c27022e9 LocalStore::addToStore(srcPath): Handle the flat case 
This helps nix-prefetch-url when using a local store.
 2020-07-09 15:54:32 +02:00
Matthew Bauer 06a4e15478 Fix build.cc on linux 2020-07-08 19:27:51 -04:00
Matthew Bauer 8e0d0689be Only store hash of fixed derivation output 
we don’t need a full storepath for a fixedoutput derivation. So just
putting the ingestion method + the hash is sufficient.
 2020-07-08 19:11:39 -04:00
Eelco Dolstra b981e5aacf Cleanup 2020-07-08 22:07:21 +02:00
Eelco Dolstra 34f25124ba Make LocalStore::addToStore(srcPath) run in constant memory 
This reduces memory consumption of

  nix-instantiate \
    -E 'with import <nixpkgs> {}; runCommand "foo" { src = ./blender; } "echo foo"' \
    --option nar-buffer-size 10000

(where ./blender is a 1.1 GiB tree) from 1716 to 36 MiB, while still
ensuring that we don't do any write I/O for small source paths (up to
'nar-buffer-size' bytes). The downside is that large paths are now
always written to a temporary location in the store, even if they
produce an already valid store path. Thus, adding large paths might be
slower and run out of disk space. ¯\_(ツ)_/¯ Of course, you can always
restore the old behaviour by setting 'nar-buffer-size' to a very high
value.
 2020-07-08 22:07:21 +02:00
Matthew Bauer af95a7c16b Add name to BasicDerivation 
We always have a name for BasicDerivation, since we have a derivation
store path that has a name.
 2020-07-08 15:38:01 -04:00
Eelco Dolstra 9223603908 Merge remote-tracking branch 'origin/master' into flakes 2020-07-08 15:55:19 +02:00
Eelco Dolstra 16ec7785ca Fix 'got unknown message type 1 from Nix daemon' 
Example:

  $ nix-build -E 'with import <nixpkgs> {}; runCommand "foo" { x = runCommand "bar" {} "exit 1"; } "echo foo; exit 1"'
  warning: unknown setting 'auto-allocate-uids'
  these 2 derivations will be built:
    /nix/store/v4fbdbhcdi949929a67g8farwf72zgam-bar.drv
    /nix/store/k4fsvrjl7cp2xpz7927iv7g0dqj1zyhs-foo.drv
  warning: unknown setting 'auto-allocate-uids'
  building '/nix/store/v4fbdbhcdi949929a67g8farwf72zgam-bar.drv'...
  error: --- Error ----------------------------------------------------------------------------------------------------------------------------------------------------------------- nix-daemon
  builder for '/nix/store/v4fbdbhcdi949929a67g8farwf72zgam-bar.drv' failed with exit code 1
  error: --- Error ------------------------------------------------------------------------------------------------------------------------------------------------------------------ nix-build
  got unknown message type 1 from Nix daemon
 2020-07-08 15:53:14 +02:00
Eelco Dolstra 1ab9da9154 Merge remote-tracking branch 'origin/master' into flakes 2020-07-07 14:38:57 +02:00
Eelco Dolstra 4055cfee36 Fix coverage build 2020-07-07 14:37:47 +02:00
Eelco Dolstra 7c9ece5dca exportReferencesGraph: Fix support for non-top-level store paths 
Fixes #3471.
 2020-07-07 14:25:43 +02:00
Ben Burdette efd6a8b230 bump 2020-07-06 11:54:53 -06:00
Ben Burdette 75bfcf8d15 revamp trace code and test 2020-07-06 10:51:48 -06:00
Eelco Dolstra 68f524d717 nix develop: Support derivations with multiple outputs 2020-07-06 18:34:58 +02:00
Eelco Dolstra cd8eb8a7d1 nix develop: Fall back to "bash" if nixpkgs#bashInteractive is unavailable 2020-07-06 17:08:54 +02:00
Eelco Dolstra 54712aaf8a Merge remote-tracking branch 'origin/master' into flakes 2020-07-06 16:40:10 +02:00
Ben Burdette a168224464 spacing 2020-07-04 18:30:49 -06:00
John Ericson 465daa9396 Merge remote-tracking branch 'upstream/master' into add-body-to-network-errors 2020-07-03 17:08:39 +00:00
John Ericson dbffd309fe Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-03 14:11:38 +00:00
Ben Burdette b29a4ea1dc Merge branch 'master' into add-trace 2020-07-03 07:57:36 -06:00
Eelco Dolstra c3c7aedbb5 nix develop: Fix bad regex 
This was accepted by libstdc++ but not libc++.

https://hydra.nixos.org/build/123569154
 2020-07-03 14:58:58 +02:00
Eelco Dolstra 6f8fd3a3f2 Shut up a clang warning 2020-07-03 14:50:07 +02:00
regnat 223fbe644a Shorten the path to the test root 
Fix a socket length failure on the OSX builders
 2020-07-03 09:20:01 +02:00
John Ericson 1be279af26 Fix Narinfo corruption detection bug 
The aim of this check was just to ensure each key occurs once.
 2020-07-02 21:46:10 +00:00
Eelco Dolstra b5e4253697 Fix abort in 'nix develop' 2020-07-02 18:24:11 +02:00
Ben Burdette 5818271c6e spacing 2020-07-02 09:41:54 -06:00
Matthew Bauer fc2ab42e86 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-07-02 11:14:04 -04:00
Matthew Bauer d2e8b9ff0e Store subPath in SubstitutionGoal 2020-07-02 11:12:05 -04:00
Ben Burdette bf2788e4c1 move showTrace to new loggerSettings 2020-07-02 09:04:31 -06:00
Matthew Bauer 1f9cb06db2 Try next when no ca exists and have different store dirs 2020-07-02 10:59:24 -04:00
Ben Burdette 5ae498872a assert for invalid fileorigin 2020-07-02 07:14:40 -06:00
Ben Burdette 8497891b99 spacing 2020-07-01 13:50:18 -06:00
Eelco Dolstra 6ff9aa8df7 Don't process an option if any of its arguments need completion 2020-07-01 20:31:39 +02:00
Eelco Dolstra d746503e5c Add --inputs-from to use flake inputs as registry entries 
This allows you to refer to an input from another flake. For example,

  $ nix run --inputs-from /path/to/hydra nixpkgs#hello

runs 'hello' from the 'nixpkgs' inputs of the 'hydra' flake.

Fixes #3769.
 2020-07-01 20:25:13 +02:00
Ben Burdette a295b2ea96 if no errLoc, no Loc. 2020-07-01 12:02:02 -06:00
Ben Burdette 3629b0585a don't include errpos for addErrorContext 2020-07-01 11:49:01 -06:00
Ben Burdette 2a39c083dc non-pos trace test 2020-07-01 10:37:31 -06:00
Eelco Dolstra 38ccf2e241 Cleanup 2020-07-01 15:31:34 +02:00
Eelco Dolstra 86a4aba6c4 Merge branch 'remote-query-outputs' of https://github.com/tweag/nix 2020-07-01 15:10:29 +02:00
Eelco Dolstra 7d554f295c Support building flakes from a shallow Git repo 
Fixes #3756.
 2020-07-01 14:57:59 +02:00
Ben Burdette a7d5d26443 fix tests with the 'from string' change 2020-06-30 22:05:21 -06:00
Ben Burdette 9159dfe3d8 comments and cleanup 2020-06-30 16:31:55 -06:00
Ben Burdette 70bcb39d3f double addtrace for 'called from' 2020-06-30 15:44:19 -06:00
Matthew Bauer 09833126f3 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-30 16:35:08 -04:00
Ben Burdette ddb81ca126 Merge branch 'master' into add-trace 2020-06-30 12:21:45 -06:00
Ben Burdette a0705e0dd1 invalid pos check 2020-06-30 11:01:46 -06:00
Ben Burdette e72a16a339 check for a null symbol 2020-06-30 11:00:51 -06:00
Ben Burdette c484a67914 trace formatting 2020-06-29 15:46:21 -06:00
Eelco Dolstra 2b834d48aa NAR parser: Fix missing name field check 
Discovered by @Kloenk.
 2020-06-29 22:45:41 +02:00
John Ericson 987a4a0be9 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-29 18:03:21 +00:00
Eelco Dolstra 26cf0c674f nix run: Use packages/legacyPackages as fallback if there is no app definition 
'nix run' will try to run $out/bin/<name>, where <name> is the
derivation name (excluding the version). This often works well:

  $ nix run nixpkgs#hello
  Hello, world!

  $ nix run nix -- --version
  nix (Nix) 2.4pre20200626_adf2fbb

  $ nix run patchelf -- --version
  patchelf 0.11.20200623.e61654b

  $ nix run nixpkgs#firefox -- --version
  Mozilla Firefox 77.0.1

  $ nix run nixpkgs#gimp -- --version
  GNU Image Manipulation Program version 2.10.14

though not always:

  $ nix run nixpkgs#git
  error: unable to execute '/nix/store/kp7wp760l4gryq9s36x481b2x4rfklcy-git-2.25.4/bin/git-minimal': No such file or directory
 2020-06-29 19:08:50 +02:00
Eelco Dolstra 50f13b06fb EvalCache: Store string contexts 2020-06-29 19:08:37 +02:00
Ben Burdette 8f81fae116 showTrace flag in loggers 2020-06-29 10:20:51 -06:00
Eelco Dolstra b681408879 Factor out EvalCache::forceDerivation() 2020-06-29 16:39:41 +02:00
Eelco Dolstra ca946860ce Fix bash completion 2020-06-29 14:37:22 +02:00
Eelco Dolstra bc03c6f23d Move App 2020-06-29 14:14:23 +02:00
Eelco Dolstra 58bc3b6578
Merge pull request #3729 from obsidiansystems/simpler-hased-mirror 
hashed-mirrors: Use parsed derivation output rather than reconstructing it
 2020-06-29 14:04:12 +02:00
Eelco Dolstra 64232f3ea6
Merge pull request #3749 from rodarima/master 
Fall back to copyPath if link fails with EPERM
 2020-06-29 13:31:24 +02:00
Ben Burdette ef24a0835d showtrace as function arg 2020-06-27 12:19:31 -06:00
Carlo Nucera 278a679782 Merge branch 'master' of github.com:NixOS/nix into allow-relative-paths-in-store-option 2020-06-26 10:40:13 -04:00
Eelco Dolstra adf2fbbdc2 Merge remote-tracking branch 'origin/master' into flakes 2020-06-26 08:46:46 +02:00
Ben Burdette bc9e87412c 'string' makes more sense in nix repl 2020-06-25 09:56:32 -06:00
Ben Burdette 9ab808c926 showTrace flag for ErrorInfo; showTrace test. 2020-06-25 09:23:12 -06:00
Eelco Dolstra de2641ae99 Fix empty std::optional dereference in writeDerivation() 
https://hydra.nixos.org/build/123017579
 2020-06-25 15:50:30 +02:00
Rodrigo 3a642187c3 Fall back to copyPath if link fails with EPERM 
BeeGFS doesn't allow hard-links and returns EPERM, so we fall back
to copyPath. See https://github.com/NixOS/nix/issues/3748
 2020-06-25 12:03:26 +02:00
Ben Burdette 9c0e1fd4f1 add trace test; error formatting refinements 2020-06-24 18:31:28 -06:00
Ben Burdette 6359d71d6b re-enable --show-trace check 2020-06-24 18:28:20 -06:00
Ben Burdette 023912def3 convenience form of addTrace 2020-06-24 13:46:25 -06:00
Ben Burdette 93e9307329 repl indenting 2020-06-24 13:14:49 -06:00
Ben Burdette b18ed02b76 repl indenting 2020-06-24 13:10:41 -06:00
regnat d38f860c3e Add a way to get all the outputs of a derivation with their label 
Generalize `queryDerivationOutputNames` and `queryDerivationOutputs` by
adding a `queryDerivationOutputMap` that returns the map
`outputName=>outputPath`

(not that this is not equivalent to merging the results of
`queryDerivationOutputs` and `queryDerivationOutputNames` as sets don't
preserve the order, so we would end up with an incorrect mapping).

squash! Add a way to get all the outputs of a derivation with their label

Rename StorePathMap to OutputPathMap
 2020-06-24 20:38:40 +02:00
Ben Burdette 6fe660acf9 re-remove 2020-06-24 12:33:05 -06:00
Matthew Bauer bcf8582091 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-24 12:52:09 -04:00
Ben Burdette 00fe653ea5 nixCode -> LinesOfCode 2020-06-24 08:33:53 -06:00
Ben Burdette 1d43a6e123 use plain errPos instead of nixCode; fix tests 2020-06-23 15:30:13 -06:00
Carlo Nucera 8d51d38e4c Fix test suite 2020-06-23 17:16:20 -04:00
John Ericson ec3a857307 Fix and clean up hash parser 2020-06-23 18:19:40 +00:00
John Ericson 98e5d1af03 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-23 17:03:37 +00:00
Ben Burdette d0e78fbb03 re-add Pos origin in tests 2020-06-23 10:51:58 -06:00
Ben Burdette abe0552504 Merge remote-tracking branch 'upstream/master' into add-trace 2020-06-23 09:40:28 -06:00
Ben Burdette 13e87535ff traces to bottom 2020-06-23 09:36:58 -06:00
Carlo Nucera e197bc6229 Enable the --store option to take relative paths 
In nix commands which accept --store options, we can now specify a
relative path, which will be canonicalized.
 2020-06-23 11:13:18 -04:00
Eelco Dolstra 09fc06daab nix flake init: Use git add --force 2020-06-23 16:25:32 +02:00
Eelco Dolstra 015e1c2131
Merge pull request #3724 from bburdette/hintfmt-percent 
Hintfmt percent test, and fix
 2020-06-23 12:26:00 +02:00
Ben Burdette 9d1cb0c5e6 with normaltxt, elide yellow color code instead of canceling it; use normaltxt on plain_string hintfmt 2020-06-22 11:32:20 -06:00
Matthew Bauer 66a62b3189 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-22 13:08:11 -04:00
Ben Burdette 28b079067f
Update src/libutil/fmt.hh 
Co-authored-by: John Ericson <git@JohnEricson.me>
 2020-06-22 10:00:37 -06:00
John Ericson f4a5913125 hashed-mirrors: Use parsed derivation output rather than reconstructing it 
Now the derivation outputs are parsed up front, we can avoid a reparse
by doing it. Also, this just feels a bit better as the `output*` env
vars are more of a `libnixexpr` interface than `libnixstore` interface:
ultimately, it's the derivation outputs that decide whether the
derivation is fixed-output.

Yes, hashed mirrors might go away with #3689, but this bit of code would
be moved rather than deleted, so it's worth doing a cleanup anyways I
think.
 2020-06-22 15:17:20 +00:00
Eelco Dolstra 334e26bfc2 nix flake check: Don't build apps 
This was inconsistent since we're not building 'packages' or
'defaultPackage' either.

Closes #3726.
 2020-06-22 11:31:07 +02:00
Ben Burdette be4f444175 tidying up 2020-06-19 16:58:12 -06:00
Ben Burdette 0309488a66 fmt -> hintfmt test 2020-06-19 16:46:49 -06:00
Matthew Bauer f2a6cee334 Update worker protocol to support sending storepath maps 
We need to also send the ca to daemon in addition to the path.
 2020-06-19 18:06:19 -04:00
Ben Burdette 397dbe114e remove formathelper 2020-06-19 15:57:19 -06:00
John Ericson 507aa48739 WIP: Make Hash always store a valid hash type 2020-06-19 21:48:57 +00:00
Ben Burdette b193aca4ae escape percents 2020-06-19 15:29:19 -06:00
Ben Burdette db475f9e7e too few, too many args 2020-06-19 15:28:13 -06:00
Ben Burdette cdddf24f25 add hintfmt test 2020-06-19 14:54:41 -06:00
Ben Burdette 54e8f550c9 addErrorTrace 2020-06-19 13:44:08 -06:00
Matthew Bauer e8e1f5282f Replace error message in getDerivationCA 2020-06-19 15:19:09 -04:00
Matthew Bauer 0c9c1b8826 Return map of StorePaths in copyPaths 
This allows the caller to know what values were actually added to the
store.
 2020-06-19 14:48:57 -04:00
John Ericson e288c0987a Merge remote-tracking branch 'upstream/master' into validPathInfo-ca-proper-datatype 2020-06-19 18:44:24 +00:00
Matthew Bauer 7e11cf3399 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-19 14:40:49 -04:00
Matthew Bauer 2796b01e86 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-19 14:22:06 -04:00
John Ericson 68294746ae Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-19 17:53:34 +00:00
John Ericson c98081d270 Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-19 17:50:05 +00:00
John Ericson c1892a5316 tabs -> spaces 2020-06-19 17:49:57 +00:00
John Ericson 911fc88bcb More designated initializers 2020-06-19 17:42:56 +00:00
John Ericson 2f0e395c99 Merge remote-tracking branch 'me/no-stringly-typed-derivation-output' into validPathInfo-ca-proper-datatype 2020-06-19 15:26:59 +00:00
John Ericson fb39a5e00c Remove unneeded constructor for DerivationOutputHash 2020-06-19 15:11:11 +00:00
John Ericson b90cac3bad Remove uneeded = default for Hash 2020-06-19 15:00:38 +00:00
John Ericson 01dc8b0bab Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-19 14:59:05 +00:00
John Ericson 145d88cb2a Use designated initializers for DerivationOutputHash 2020-06-19 14:58:30 +00:00
John Ericson 237d88c97e FileSystemHash -> DerivationOutputHash 2020-06-19 14:47:10 +00:00
Eelco Dolstra 2886c92aef
Merge pull request #3669 from gilligan/add-compression-tests 
Add compression unit tests
 2020-06-19 13:59:04 +02:00
John Ericson 3fc58a9638 Remove some Base:: that crept in 2020-06-19 00:24:47 +00:00
John Ericson 3f8dcfe3fd Merge branch 'validPathInfo-temp' into validPathInfo-ca-proper-datatype 2020-06-18 23:01:58 +00:00
John Ericson 669c3992e8 Merge branch 'no-hash-type-unknown' into validPathInfo-temp 2020-06-18 22:33:07 +00:00
John Ericson 15abb2aa2b Revert the enum struct change 
Not a regular git revert as there have been many merges and things.
 2020-06-18 22:11:26 +00:00
John Ericson bbbf3602a3 Merge branch 'enum-class' into no-hash-type-unknown 2020-06-18 22:11:19 +00:00
John Ericson 40526fbea5 Merge remote-tracking branch 'upstream/master' into enum-class 2020-06-18 21:38:15 +00:00
Ben Burdette 4d1a4f0217 addTrace 2020-06-18 15:25:26 -06:00
Ben Burdette e6f93b94fc Merge branch 'master' into caveman-LOCs 2020-06-18 13:07:53 -06:00
John Ericson 1b23fe4afb Fix bugs 
- Bad dynamic cast target ...classic

 - std::shared_ptr need explicit deref
 2020-06-18 19:03:10 +00:00
John Ericson fb432b0bd2 Merge remote-tracking branch 'obsidian/fix-url-format' into add-body-to-network-errors 2020-06-18 18:08:02 +00:00
John Ericson 639e20dc3e Prevent '%' in URL from causing crashes 
We have a larger problem that passsing computed strings to the first
variable argument of many exception constructors is unsafe because that
first variable argument is interpreted not as a plain string, but format
string, and if it contains '%' boost::format will abort, since there are
no arguments to the format string.

In this particular instance '%' was used as part of an escape code in a
URL, which, when the download failed, caused Nix to abort displaying the
`FileTransferError`.
 2020-06-18 17:54:16 +00:00
Eelco Dolstra 6c000eed80
Merge pull request #3709 from expipiplus1/master 
Mention number of derivations to be build/fetched in output
 2020-06-18 19:03:05 +02:00
John Ericson 74b219ef6e Adjust FileTransferError message to use opt response 2020-06-18 14:48:45 +00:00
Eelco Dolstra 5771c8bbf2 Don't provide 'getFlake' if the 'flakes' feature is not enabled 
(cherry picked from commit 0a1d3c1dd3)
 2020-06-18 14:03:00 +02:00
Eelco Dolstra 2a61bbf77f Some backports from the flakes branch 2020-06-18 14:03:00 +02:00
Eelco Dolstra 377345e26f Remove unneeded #include 2020-06-18 13:47:05 +02:00
Eelco Dolstra 7083d33efe Make constant primops lazy 
(cherry picked from commit aa0e2a2e70)
 2020-06-18 13:42:47 +02:00
Eelco Dolstra 3d492199bb github: Respect default branch 2020-06-18 13:25:08 +02:00
regnat 4fef2ba7e4 Rename content-addressed-paths into ca-derivations 
See <https://github.com/NixOS/nix/pull/3710#issuecomment-645480333>
 2020-06-18 09:25:55 +02:00
Carlo Nucera 004570a377 Add HTTP responses to FileTransferErrors 2020-06-17 22:34:31 +00:00
Carlo Nucera a835c740ca Replace TransferItem::status with a local variable 
Everywhere seems to use `getHTTPStatus` now.
 2020-06-17 22:16:24 +00:00
Carlo Nucera 289b9b8dcf Create a new TeeSink abstraction 
This is a bit complex because we want to expose extra functionality the
wrapped class has. Perhaps there is some inheritancy trickery to do this
nicer, but I don't know it, and this is the first thing we tried after a
series of attempts that did build.

This design is kind of like that of Rust's Writer, Reader, or Iter
adapters, which impliment more traits based on what the inner type
implements.
 2020-06-17 22:09:32 +00:00
Carlo Nucera fb05a6adcf Eliminate old TeeSink abstraction 
This was introduced in fa125b9b28, and
then "reverted" in 1cf4801108, except that
revert left the struct around doing nothing useful.

We're removing it all the way now because we want to make a new
`TeeSink` complementing the already-exiting `TeeSource`, that is
actually a completely different concept as far as the class hierarchy is
concerned.
 2020-06-17 22:07:22 +00:00