Commit graph

2330 commits

Author SHA1 Message Date
Eelco Dolstra 29e0748847 Show HTTP status message
For example:

  warning: unable to download 'https://api.github.com/repos/edolstra/dwarffs/commits/master': HTTP error 403 ('rate limit exceeded'); using cached version
2020-06-09 14:20:22 +02:00
Eelco Dolstra 447ea52b07 FileTransfer: Don't store status since curl already does that 2020-06-09 14:05:15 +02:00
regnat 4983401440 Unify the printing of the logs between bar-with-logs and raw
Make the printing of the build logs systematically go through the
logger, and replicate the behavior of `no-build-output` by having two
different loggers (one that prints the build logs and one that doesn't)
2020-06-08 09:31:15 +02:00
Carlo Nucera d614166cb6 Fix condition error and make test suite pass 2020-06-04 17:21:21 -04:00
John Ericson e5cc1ebc5d Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-04 21:04:35 +00:00
John Ericson 94ddea9e2f Use readString rather than >> temporary
Fixed the rest of these before, but this one slipped through.
2020-06-04 20:55:08 +00:00
John Ericson 2041499b5e Flip boolean
Thanks Matt!
2020-06-04 20:42:25 +00:00
John Ericson ed86acf02a Use some std::optional::has_value for clarity 2020-06-04 20:42:02 +00:00
Matthew Bauer 2299ef705c Add error message when FileIngestionMethod is out of bounds
bool coerces anything >0 to true, but in the future we may have other
file ingestion methods. This shows a better error message when the
“recursive” byte isn’t 1.
2020-06-04 11:32:39 -05:00
John Ericson 53bc8ff152 No C++ designated initializers yet with Clang 7 2020-06-03 20:45:14 -04:00
Ben Burdette 4335ba999b Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-06-03 17:00:00 -06:00
Carlo Nucera 132d6f2c24 Clarify the description of StorePath construction 2020-06-03 16:08:32 -04:00
Eelco Dolstra c20591ddc3 Merge remote-tracking branch 'origin/master' into flakes 2020-06-03 16:15:22 +02:00
Jonas Chevalier 6ee03b8444
libutils/hash: remove default encoding
This will make it easier to reason about the hash encoding and switch to
SRI everywhere where possible.
2020-06-03 13:49:51 +02:00
John Ericson 3c78ac348c Merge remote-tracking branch 'obsidian/no-hash-type-unknown' into validPathInfo-ca-proper-datatype 2020-06-03 04:44:24 +00:00
John Ericson 406dbb7fce outputHashAlgo can be blank so parse accordingly
It is blank for SRI hashes.
2020-06-02 21:09:15 +00:00
Carlo Nucera 75d2581390 Typo 2020-06-02 16:21:18 -04:00
Carlo Nucera 78f137e931 Validate text version instead, throw Errors 2020-06-02 16:20:22 -04:00
Carlo Nucera a5cdf1867e Add assertions for SHA256 in fixed case 2020-06-02 16:13:08 -04:00
Carlo Nucera fd2eb41e64 Move file-hash to content-address 2020-06-02 15:44:58 -04:00
Carlo Nucera 343c20a404 WIP Completed implementation 2020-06-02 15:23:21 -04:00
Carlo Nucera 390bf64858 WIP 2020-06-02 14:15:58 -04:00
John Ericson a33270ce1d Clean up ValidPathInfo::isContentAddressed with std::visit 2020-06-02 17:04:21 +00:00
John Ericson 25e61812f3
Apply suggestions from code review
Co-authored-by: Matthew Bauer <mjbauer95@gmail.com>
2020-06-02 12:47:18 -04:00
John Ericson 64cffb804a Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-02 16:07:25 +00:00
John Ericson 450dcf2c1b Remove HashType::Unknown
Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
2020-06-02 15:52:13 +00:00
Carlo Nucera a5d820a0a3 Change parseCa(Opt) to parseContentAddress(Opt) 2020-06-02 11:00:10 -04:00
John Ericson 1b6461f671 Merge remote-tracking branch 'upstream/master' into validPathInfo-ca-proper-datatype 2020-06-02 14:31:18 +00:00
Ben Burdette d82d230b40 elide the 'ErrorInfo' in logError and logWarning calls 2020-06-02 08:22:24 -06:00
John Ericson efcd30da89 WIP 2020-06-02 00:37:43 +00:00
John Ericson 754c910953 WIP more progress 2020-06-01 19:26:40 -04:00
Carlo Nucera da39092a39 WIP 2020-06-01 18:53:31 -04:00
Carlo Nucera 0e9438b6d3 Create new file-hash files 2020-06-01 17:32:40 -04:00
Carlo Nucera 0cb67ecbd3 Merge branch 'derivation-header-include-order' of github.com:Ericson2314/nix into validPathInfo-ca-proper-datatype 2020-06-01 17:13:11 -04:00
Carlo Nucera f4b89e11a4 Merge branch 'no-stringly-typed-derivation-output' of github.com:Ericson2314/nix into validPathInfo-ca-proper-datatype 2020-06-01 17:12:50 -04:00
John Ericson fac0c2d54a Remove addToStore variant as requested by FIXME
The idea is it's always more flexible to consumer a `Source` than a
plain string, and it might even reduce memory consumption.

I also looked at `addToStoreFromDump` with its `// FIXME: remove?`, but
the worked needed for that is far more up for interpretation, so I
punted for now.
2020-05-29 17:02:32 -04:00
Ben Burdette 734283d636 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-05-29 09:51:37 -06:00
Carlo Nucera 6dd471ebf6 Fixing the result of merge 2020-05-28 12:14:36 -04:00
Carlo Nucera 4f597fb901 Merge branch 'master' of github.com:NixOS/nix into enum-class 2020-05-28 10:58:22 -04:00
John Ericson 5b4cd84bc2 Merge remote-tracking branch 'me/more-rust-ffi' into no-stringly-typed-derivation-output 2020-05-28 10:35:53 -04:00
John Ericson ef71caba29 Merge remote-tracking branch 'upstream/master' into more-rust-ffi 2020-05-28 10:31:46 -04:00
Eelco Dolstra 17ca997fc6 Merge remote-tracking branch 'origin/master' into flakes 2020-05-28 12:55:24 +02:00
Matthew Bauer c66441a646 Rename some variables named “recursive” to “method”
This is much less confusing since recursive is no longer a boolean.
2020-05-27 13:21:26 -05:00
Carlo Nucera d49e65ba9d Merge remote-tracking branch 'john-ericson/enum-FileIngestionMethod' into no-stringly-typed-derivation-output 2020-05-26 12:30:48 -04:00
Carlo Nucera 0f3f901071 Merge remote-tracking branch 'origin/master' into more-rust-ffi 2020-05-26 11:46:42 -04:00
Carlo Nucera 6d73c10041 Merge remote-tracking branch 'origin/master' into enum-FileIngestionMethod 2020-05-26 11:14:08 -04:00
Eelco Dolstra 5ef64f05e6 Cleanup 2020-05-18 15:50:29 +02:00
Eelco Dolstra 0ed946aa61 Merge branch 'wait-for-builders' of https://github.com/serokell/nix 2020-05-18 13:48:45 +02:00
Ben Burdette 92123c6c79 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-05-15 07:00:36 -06:00
Alexander Bantyev 183dd28266
Don't lock a user while doing remote builds 2020-05-14 17:00:54 +03:00
Ben Burdette ef9dd9f9bc formatting and a few minor changes 2020-05-13 15:56:39 -06:00
Ben Burdette c79d4addab consistent capitalization 2020-05-13 10:02:18 -06:00
Ben Burdette bfca5fc395 change status messages to info level 2020-05-13 09:52:36 -06:00
Ben Burdette 19cffc29c9 remove unused extra json fields 2020-05-12 12:09:12 -06:00
Ben Burdette ec870b9c85 new pos format for more errors 2020-05-12 10:52:26 -06:00
Eelco Dolstra ebc024df22
Show hint how to enable experimental features 2020-05-12 15:47:09 +02:00
Ben Burdette b93c1bf3d6 fixes to merged code 2020-05-11 15:52:15 -06:00
Ben Burdette 59b1f5c701 Merge branch 'master' into errors-phase-2 2020-05-11 14:35:30 -06:00
Ben Burdette 958e81987b switch from printError warnings to logWarnings 2020-05-11 13:02:16 -06:00
Domen Kožar 5bdb67c843
Merge pull request #3568 from kolloch/outputHashModeError
libstore/build.cc: more explicit error about form of output
2020-05-11 18:14:32 +02:00
Domen Kožar 1d8144e36b
Update src/libstore/build.cc 2020-05-11 18:14:23 +02:00
Benjamin Hipple 146f9c114f doc: consistently refer to 'fixed-output' with a dash
General cleanup that makes it easier to search for the term.
2020-05-09 10:58:43 -04:00
Alexander Bantyev 772e5db828
Mention build users in the 'waiting for' message 2020-05-08 12:29:00 +03:00
Alexander Bantyev 14073fb76b
Don't block while waiting for build users 2020-05-08 12:22:39 +03:00
Ben Burdette e3901638b5 todo removal 2020-05-06 15:01:13 -06:00
Eelco Dolstra 2f8ee4578f
Merge remote-tracking branch 'origin/master' into flakes 2020-05-06 12:01:40 +02:00
Eelco Dolstra 74a1bfdcab
Merge pull request #3546 from guibou/nix_readfile_on_0_sized_files
builtins.readFile: do not truncate content
2020-05-06 11:33:55 +02:00
Peter Kolloch 9be46859a9 libstore/build.cc: more explicit about form of output
Be more explicit about why we expect a regular file as output
when outputHashMode=flat for a fixed output derivation.
2020-05-06 11:21:12 +02:00
Eelco Dolstra 02c5914ea4
Merge pull request #3562 from pikajude/master
Use fragment size for autoGC capacity calculation
2020-05-06 11:19:30 +02:00
Eelco Dolstra fd4911269f
Revert "Merge pull request #3558 from LnL7/ssh-ng-stderr"
This reverts commit 3ebfbecdd1, reversing
changes made to c089c52d5f.

https://github.com/NixOS/nix/pull/3558
2020-05-06 10:54:18 +02:00
Eelco Dolstra 6f3244ce45 Merge remote-tracking branch 'origin/master' into flakes 2020-05-05 18:59:33 +02:00
Alexander Bantyev 04967dee9d
Wait for build users when none are available 2020-05-05 13:04:36 +03:00
Ben Burdette 7ffb5efdbc appending to hints; remove _printError 2020-05-04 16:19:57 -06:00
Jude Taylor e2fc575c61 nix auto-gc: use fragment size 2020-05-04 14:42:06 -07:00
Eelco Dolstra a721a0b114 Flag: Use designated initializers 2020-05-04 22:40:19 +02:00
Ben Burdette ab6f0b9641 convert some printError calls to logError 2020-05-03 08:01:25 -06:00
Daiderd Jordan f16e24f95e
remote-store: don't log raw stderr by default
For remote stores the log messages are already forwarded as structured
STDERR_RESULT messages so the old format is duplicate information.  But
still included with -vvv since it could be useful for debugging
problems.

    $ nix build -L /nix/store/nl71b2niws857ffiaggyrkjwgx9jjzc0-foo.drv --store ssh-ng://localhost
    Hello World!
    foo> Hello World!
    [1/0/1 built] building foo

Fixes #3556
2020-05-02 23:40:50 +02:00
Ben Burdette 4b99c09f5c convert some errors 2020-05-01 14:32:06 -06:00
Eelco Dolstra 941f95284a Merge remote-tracking branch 'origin/master' into flakes 2020-05-01 11:59:56 +02:00
Ben Burdette 39ff80d031 errorinfo constructor test 2020-04-29 18:57:05 -06:00
Guillaume Bouchard 7afcb5af98 Remove the drain argument from readFile
Now it is always `drain` (see previous commit).
2020-04-29 18:43:45 +02:00
Antoine Eiche ca93b26db6 Only call grantpt on MacOS systems
The commit 3cc1125595 adds a `grantpt`
call on the builder pseudo terminal fd. This call is actually only
required for MacOS, but it however requires a RW access to /dev/pts
which is only RO bindmounted in the Bazel Linux sandbox. So, Nix can
not be actually run in the Bazel Linux sandbox for unneeded reasons.
2020-04-29 15:43:20 +02:00
Ben Burdette 22e6490311 Error classname as name 2020-04-28 21:06:08 -06:00
Eelco Dolstra ef4d3fc111 Merge remote-tracking branch 'origin/master' into flakes 2020-04-23 15:16:18 +02:00
Dustin DeWeese c0d940978a Replace select() with poll() to allow waiting on more than FD_SETSIZE fds 2020-04-21 16:21:28 -07:00
Ben Burdette e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Ben Burdette 15e9564fd1 logEI for tunnelLogger and progressbar 2020-04-19 17:16:51 -06:00
Ben Burdette 3d5b1032a1 logError, logWarning; Logger functions; switch to Verbosity enum 2020-04-17 15:07:44 -06:00
Eelco Dolstra aaa109565e Use a more space/time-efficient representation for the eval cache 2020-04-17 23:04:21 +02:00
Eelco Dolstra 7a9687ba30 SQLiteStmt: Use std::string_view 2020-04-17 01:00:56 +02:00
Eelco Dolstra 0858738355 Merge remote-tracking branch 'origin/master' into flakes 2020-04-16 18:27:37 +02:00
Eelco Dolstra a118293bd0
Merge pull request #3458 from zimbatm/nix-user-conf-dir
NIX_USER_CONF_FILES
2020-04-15 13:00:28 +02:00
Jonas Chevalier 895516cadf
add NIX_USER_CONF_FILES
Motivation: maintain project-level configuration files.

Document the whole situation a bit better so that it corresponds to the
implementation, and add NIX_USER_CONF_FILES that allows overriding
which user files Nix will load during startup.
2020-04-14 18:45:06 +02:00
Eelco Dolstra c0c2cb871d Merge remote-tracking branch 'origin/master' into flakes 2020-04-14 13:02:55 +02:00
Bruce Toll 8132d0a12e Fix nix-build --check -K in sandbox w/o root
Temporarily add user-write permission to build directory so that it
can be moved out of the sandbox to the store with a .check suffix.

This is necessary because the build directory has already had its
permissions set read-only, but write permission is required
to update the directory's parent link to move it out of the sandbox.

Updated the related --check "derivation may not be deterministic"
messages to consistently use the real store paths.

Added test for non-root sandbox nix-build --check -K to demonstrate
issue and help prevent regressions.
2020-04-10 16:23:10 -04:00
Domen Kožar db25a6d7bb
Merge pull request #2689 from tollb/fix/delete_tmp_dir_when_build_check_ok
Delete temporary directory on successful build
2020-04-10 09:47:57 +02:00
Bruce Toll 16a4864759 Delete temporary directory on successful build
With --check and the --keep-failed (-K) flag, the temporary directory
was being retained regardless of whether the build was successful and
reproducible.  This removes the temporary directory, as expected, on
a reproducible check build.

Added tests to verify that temporary build directories are not
retained unnecessarily, particularly when using --check with
--keep-failed.
2020-04-09 16:37:41 -04:00
Philipp Middendorf 04bedda0b6 gc.cc: Ignore hidden files in temproots 2020-04-09 17:05:29 +02:00
Eelco Dolstra d103c79144
Merge remote-tracking branch 'origin/master' into flakes 2020-04-09 15:54:21 +02:00
Nikola Knezevic f5095594e7 datatransfer.{cc,hh} -> filetransfer.{cc,hh} 2020-04-08 22:26:57 +02:00
Nikola Knezevic c330109bfa DataTransfer -> FileTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic 7848372b0f Add upload method 2020-04-08 22:26:57 +02:00
Nikola Knezevic a0c5931208 actDownload -> actDataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic c4c1ae0a00 DownloadError -> DataTransferError 2020-04-08 22:26:57 +02:00
Nikola Knezevic 213d124277 DownloadItem -> TransferItem 2020-04-08 22:26:57 +02:00
Nikola Knezevic cd391206e6 {get,make,new}Downloader -> DataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic 2df2741ec6 enqueueDownload -> enqueueDataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic 142ed7fe45 DownloadResult -> DataTransferResult 2020-04-08 22:26:57 +02:00
Nikola Knezevic e5cc53beec DownloadSettings -> DataTransferSettings 2020-04-08 22:26:57 +02:00
Nikola Knezevic 741e9012d3 Rename src/lib/download.* to src/lib/datatransfer.* 2020-04-08 22:26:57 +02:00
Nikola Knezevic 65ef57e0cb DownloadRequest -> DataTransferRequest 2020-04-08 22:26:57 +02:00
Domen Kožar bf81b31559
build.cc: improve message if home directory exists 2020-04-08 18:27:10 +02:00
Eelco Dolstra 1ab8d6ac18
Downloader: Only write data to the sink on a 200 response
Hopefully fixes #3278.
2020-04-08 15:27:09 +02:00
Eelco Dolstra 54955867a6 Merge remote-tracking branch 'origin/master' into flakes 2020-04-07 14:29:45 +02:00
Eelco Dolstra cd39709003 Cleanup 2020-04-07 09:27:17 +02:00
Eelco Dolstra 462421d345 Backport libfetchers from the flakes branch
This provides a pluggable mechanism for defining new fetchers. It adds
a builtin function 'fetchTree' that generalizes existing fetchers like
'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a
set of attributes, e.g.

  fetchTree {
    type = "git";
    url = "https://example.org/repo.git";
    ref = "some-branch";
    rev = "abcdef...";
  }

The existing fetchers are just wrappers around this. Note that the
input attributes to fetchTree are the same as flake input
specifications and flake lock file entries.

All fetchers share a common cache stored in
~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching
mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}).

This also adds support for Git worktrees (c169ea5904).
2020-04-07 09:03:14 +02:00
Cole Helbling c976cb0b8a
Don't retry on "unsupported protocol" error
When encountering an unsupported protocol, there's no need to retry.
Chances are, it won't suddenly be supported between retry attempts;
error instead. Otherwise, you see something like the following:

    $ nix-env -i -f git://git@github.com/foo/bar
    warning: unable to download 'git://git@github.com/foo/bar': Unsupported protocol (1); retrying in 335 ms
    warning: unable to download 'git://git@github.com/foo/bar': Unsupported protocol (1); retrying in 604 ms
    warning: unable to download 'git://git@github.com/foo/bar': Unsupported protocol (1); retrying in 1340 ms
    warning: unable to download 'git://git@github.com/foo/bar': Unsupported protocol (1); retrying in 2685 ms

With this change, you now see:

    $ nix-env -i -f git://git@github.com/foo/bar
    error: unable to download 'git://git@github.com/foo/bar': Unsupported protocol (1)
2020-04-05 09:00:34 -07:00
Eelco Dolstra 4fdec5f61d Merge remote-tracking branch 'origin/master' into flakes 2020-04-01 00:03:50 +02:00
mlatus 12556e5709 fix placeholder not substituted in passAsFile 2020-03-31 19:40:16 +08:00
John Ericson 51afea3af2 Never cast FileIngestionMethod to or from boolean 2020-03-30 22:31:51 +00:00
John Ericson c251b011cd Merge remote-tracking branch 'upstream/master' into enum-FileIngestionMethod 2020-03-30 18:16:44 -04:00
John Ericson 832bd534dc Store parsed hashes in DerivationOutput
It's best to detect invalid data as soon as possible, with data types
that make storing it impossible.
2020-03-30 11:33:35 -04:00
John Ericson f5494d9442 Merge remote-tracking branch 'me/enum-FileIngestionMethod' into HEAD 2020-03-30 11:08:13 -04:00
Eelco Dolstra d15d91cad1 Makefile cleanup 2020-03-30 16:50:13 +02:00
Eelco Dolstra e322a16523 Remove global -I flags
(cherry picked from commit 2c692a3b14)
2020-03-30 15:30:19 +02:00
Eelco Dolstra 2c692a3b14 Remove global -I flags 2020-03-30 14:39:33 +02:00
Eelco Dolstra e0a0ae0467 Move fetchers from libstore to libfetchers 2020-03-30 14:04:53 +02:00
Eelco Dolstra 2287cc6486 Fix segfault 2020-03-30 13:31:55 +02:00
John Ericson 225e62a56a Replace some bool recursive with a new FileIngestionMethod enum 2020-03-29 15:16:20 -04:00
John Ericson 87b32bab05 Use enum struct and drop prefixes
This does a few enums; the rest will be gotten in subsequent commits.
2020-03-29 11:23:15 -04:00
Eelco Dolstra 2287e2f279 nix flake info: Show flake subdirectory 2020-03-28 18:05:50 +01:00
John Ericson e433d4af4c Extend Rust FFI
Do idiomatic C++ copy and move constructors for a few things, so
wrapping structs' defaults can work.
2020-03-25 16:12:14 -04:00
John Ericson bcde5456cc Flip dependency so store-api.hh includes derivations.hh
I think it makes more sense to define the data model (derivations),
before the operations (store api).
2020-03-24 20:39:45 +00:00
Eelco Dolstra 0a10854f85 Misc changes from the flakes branch 2020-03-24 14:34:47 +01:00
Eelco Dolstra 777e21e596 nix path-info --json: Print hash in SRI format
(cherry picked from commit 442e665d6d)
2020-03-24 14:26:23 +01:00
Eelco Dolstra f9611c7ae4 buildenv: Eliminate global variables, other cleanup
(cherry picked from commit b82f75464d)
2020-03-24 14:06:47 +01:00
Eelco Dolstra edc34cc1a2 Add function for quoting strings
(cherry picked from commit 7dcf5b011a)
2020-03-24 13:44:04 +01:00
Eelco Dolstra 5a7e7fc35f Use std::string_view
(cherry picked from commit 6529490cc1)
2020-03-24 13:26:37 +01:00
Eelco Dolstra 7abe3bde8a Merge remote-tracking branch 'origin/master' into flakes 2020-03-23 13:27:54 +01:00
Eelco Dolstra 5885e20404
Merge pull request #3429 from LnL7/darwin-sandbox
darwin sandbox
2020-03-23 09:13:36 +01:00
Daiderd Jordan 2e9bc1245c
sandbox: fix /bin/sh on catalina
Sadly 10.15 changed /bin/sh to a shim which executes bash, this means it
can't be used anymore without also opening up the sandbox to allow bash.

    Failed to exec /bin/bash as variant for /bin/sh (1: Operation not permitted).
2020-03-20 22:12:30 +01:00
Daiderd Jordan f6c122aaeb
sandbox: allow pty devices
Nix now runs builds with a pseudo-terminal to enable colored build
output.
2020-03-20 21:58:45 +01:00
Daiderd Jordan 7f2df903d9
libstore: relax default sandbox-paths on darwin 2020-03-20 21:31:20 +01:00
Daiderd Jordan afb78ebd34
libstore: disable resolve-system-dependencies hook
This is used to determine the dependency tree of impure libraries so nix
knows what paths to open in the sandbox.  With the less restrictive
defaults it isn't needed anymore.
2020-03-20 21:21:56 +01:00
Eelco Dolstra 8aa354fdfd
Register flake-registry.json as a GC root again 2020-03-19 11:45:34 +01:00
Eelco Dolstra 1c127e6a82
downloadFile(): Use expired file if the download fails 2020-03-19 11:42:50 +01:00
Eelco Dolstra f6ddf48882
Get rid of downloadCached()
Everything uses the generic caching system now.
2020-03-18 17:24:19 +01:00
Eelco Dolstra c5ec95e2c7
tarball.cc: Use ETags 2020-03-18 15:14:23 +01:00
Eelco Dolstra 1e7ce1d6da
tarball / github fetchers: Use generic caching system 2020-03-18 14:08:25 +01:00
Eelco Dolstra 38e360154d
Git: Use unified caching system 2020-03-17 22:35:29 +01:00