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Author SHA1 Message Date
Ben Burdette 0e49de6a2b position for stdin, string; (string) for trace; fix tests 2020-05-21 14:28:45 -06:00
Ben Burdette 6a420d672c print LOC for stdin, string args 2020-05-20 22:18:26 -06:00
Ben Burdette 4daccb279c formatting 2020-05-14 10:28:17 -06:00
Ben Burdette ef9dd9f9bc formatting and a few minor changes 2020-05-13 15:56:39 -06:00
Ben Burdette 72ecccee57 convert to logWarning format 2020-05-12 12:19:34 -06:00
Ben Burdette 2a19bf8619 move pos to the first arg, to indicate its not used in a fmt template 2020-05-12 11:27:37 -06:00
Ben Burdette ec870b9c85 new pos format for more errors 2020-05-12 10:52:26 -06:00
Ben Burdette 7c3138844c more pos reporting 2020-05-11 17:34:57 -06:00
Ben Burdette 631642c5b4 new format for pos 2020-05-11 16:58:08 -06:00
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 55eb717148 add pos to errorinfo, remove from hints 2020-05-08 18:18:28 -06:00
Eelco Dolstra 1ad71bc62c Remove support for old lockfiles and the epoch/uri attributes 2020-05-06 17:48:18 +02:00
Eelco Dolstra b0e9b07e80 Remove obsolete FIXME 2020-05-06 17:40:01 +02:00
Eelco Dolstra 6f3244ce45 Merge remote-tracking branch 'origin/master' into flakes 2020-05-05 18:59:33 +02:00
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
Eelco Dolstra 941f95284a Merge remote-tracking branch 'origin/master' into flakes 2020-05-01 11:59:56 +02:00
Maximilian Bosch d1229859c2
Fix displaying error-position in builtins.fetch{Tree,Tarball} 
Without dereferencing this pointer, you'd get an error like this:

```
error: unsupported argument 'abc' to 'fetchTarball', at 0x13627e8
```
 2020-04-29 22:53:39 +02:00
Ben Burdette e2f61263eb uncrustify formatting 2020-04-29 10:14:32 -06:00
Eelco Dolstra 6521c92ce8 Improve path:// handling 
In particular, doing 'nix build /path/to/dir' now works if
/path/to/dir is not a Git tree (it only has to contain a flake.nix
file).

Also, 'nix flake init' no longer requires a Git tree (but it will do a
'git add flake.nix' if it's a Git tree)
 2020-04-27 22:53:11 +02:00
Eelco Dolstra b4e23dcd9e nix search: Search legacyPackages recursively 2020-04-27 16:29:26 +02:00
Eelco Dolstra ef4d3fc111 Merge remote-tracking branch 'origin/master' into flakes 2020-04-23 15:16:18 +02:00
Ben Burdette 3bc9155dfc a few more 'format's rremoved 2020-04-22 15:00:11 -06:00
Ben Burdette e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Eelco Dolstra 8c75621da6 Fix typo 2020-04-20 15:28:56 +02:00
Eelco Dolstra 42a12f9232 Move eval-cache.{cc,hh} 2020-04-20 13:14:59 +02:00
Eelco Dolstra 539a9c1c5f Get rid of the old eval cache 2020-04-20 13:13:52 +02:00
Domen Kožar 25ed842725
Merge pull request #3502 from NixOS/more-pos 
pass Pos to forceValue to improve infinite recursion error
 2020-04-18 14:05:21 +02:00
Eelco Dolstra aaa109565e Use a more space/time-efficient representation for the eval cache 2020-04-17 23:04:21 +02:00
Eelco Dolstra 12b7eefbc5 nix flake show: Use evaluation cache 2020-04-17 01:02:29 +02:00
Eelco Dolstra c277231b7d Use RootValue 2020-04-16 18:33:34 +02:00
Eelco Dolstra f89349f07e Merge remote-tracking branch 'origin/master' into flakes 2020-04-16 18:33:10 +02:00
Eelco Dolstra fcd048a526 Use RootValue 2020-04-16 18:02:59 +02:00
Eelco Dolstra 9f46f54de4 JSONSax: Use a RootValue 
More #3377.
 2020-04-16 17:30:18 +02:00
Eelco Dolstra 10e17eaa58 ValueMap, VectorVector: Use traceable_allocator 
We want to *trace* the 'Value *' arrays, not garbage-collect them!
Otherwise the vectors/maps can end up pointing to nowhere.

Fixes #3377. Closes #3384.
 2020-04-16 17:30:13 +02:00
Eelco Dolstra b3e5eea4a9 Add function to allocate a Value in traceable memory 2020-04-16 17:30:05 +02:00
Eelco Dolstra 1290411c2d fetchMercurial: Use inputFromAttrs() 2020-04-16 17:29:30 +02:00
Domen Kožar b865b5b40c
pass Pos to forceValue to improve infinite recursion error 2020-04-16 12:32:07 +02:00
Eelco Dolstra c0c2cb871d Merge remote-tracking branch 'origin/master' into flakes 2020-04-14 13:02:55 +02:00
Domen Kožar fc144242d5
Merge pull request #3447 from DavHau/improve-tofile-error-msg 
improve toFile error message when containing potential drv path
 2020-04-11 13:12:11 +02:00
DavHau fc14213d2d improve toFile error message when containing potential drv path 2020-04-11 10:54:26 +00:00
Eelco Dolstra e5ea01c1a8
Remove flake 'edition' field 
Future editions of flakes or the Nix language can be supported by
renaming flake.nix (e.g. flake-v2.nix). This avoids a bootstrap
problem where we don't know which grammar to use to parse
flake*.nix. It also allows a project to support multiple flake
editions, in theory.
 2020-04-10 10:24:09 +02:00
Eelco Dolstra d103c79144
Merge remote-tracking branch 'origin/master' into flakes 2020-04-09 15:54:21 +02:00
Domen Kožar a693a9fa4b
Attach pos to if expression errors 2020-04-09 09:45:15 +02:00
Nikola Knezevic 7867685dcd after flake rebase 2020-04-08 22:26:57 +02:00
Nikola Knezevic f5095594e7 datatransfer.{cc,hh} -> filetransfer.{cc,hh} 2020-04-08 22:26:57 +02:00
Nikola Knezevic c4c1ae0a00 DownloadError -> DataTransferError 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
Eelco Dolstra 9ed097db7b
Merge pull request #3468 from Infinisil/functionArgsPositions 
Make function arguments retain position info
 2020-04-08 15:29:39 +02:00
Eelco Dolstra 03a4a3c95c Merge branch 'flakes' of github.com:NixOS/nix into flakes 2020-04-07 14:30:25 +02:00
Eelco Dolstra 54955867a6 Merge remote-tracking branch 'origin/master' into flakes 2020-04-07 14:29:45 +02:00
Eelco Dolstra 55cefd41d6 Merge branch 'fetchgit-recursive' of https://github.com/blitz/nix 2020-04-07 13:45:17 +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
Eelco Dolstra 68b43e01dd
nix flake info: Show resolved URL 
This is useful for finding out what a registry lookup resolves to, e.g

  $ nix flake info patchelf
  Resolved URL:  github:NixOS/patchelf
  Locked URL:    github:NixOS/patchelf/cd7955af31698c571c30b7a0f78e59fd624d0229
 2020-04-06 14:56:13 +02:00
Eelco Dolstra 6e7f252ea6 Make --override-input sticky 
When we do something like 'nix flake update --override-input nixpkgs
...', the override is now kept on subsequent calls. (If you don't want
this behaviour, you can use --no-write-lock-file.)
 2020-04-03 14:06:29 +02:00
Eelco Dolstra 9c78f7f196 getFlake: In pure mode, check that the argument is an immutable flakeref 2020-04-03 13:07:05 +02:00
Eelco Dolstra a6ff66b658 Respect the narHash attribute in more input types 
call-flake.nix now passes node.info.narHash to fetchTree. This ensures
that dirty Git trees work even in pure mode.
 2020-04-02 19:04:33 +02:00
Eelco Dolstra e1fc9f6690 Improve error message 2020-04-02 19:03:32 +02:00
Eelco Dolstra ab47868639 Change lastModified to the number of seconds in the epoch 
'lastModifiedDate' is now a string representing the equivalent
date/time.
 2020-04-02 18:39:41 +02:00
Eelco Dolstra 6d6467d376 Move parseTreeInfo() 2020-04-02 18:26:39 +02:00
Andreas Rammhold 4fc4eb6c93 libexpr: remove unused attrError 
The attrError variable is no longer used but still allocated on every
call to the findAlongAttrPath function.
 2020-04-02 17:04:00 +02:00
Eelco Dolstra 6cf91d6fbd fetchTree: Support integer attributes 2020-04-02 16:51:56 +02:00
Eelco Dolstra ed13457dbf nix flake info --json: Show TreeInfo 2020-04-02 11:51:34 +02:00
Silvan Mosberger c34e96f7e0
Make function arguments retain position info 
This allows querying the location of function arguments. E.g.

  builtins.unsafeGetAttrPos "x" (builtins.functionArgs ({ x }: null))

  => { column = 57; file = "/home/infinisil/src/nix/inst/test.nix"; line = 1; }
 2020-04-02 05:52:52 +02:00
John Ericson 7e9a2718f0 s/outputHashRecursive/ingestionMethod/c 2020-03-30 22:36:15 +00:00
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 bbbb7c1bc7 Use auto with some FileIngestionMethod local variables 2020-03-30 18:15:55 -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
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
Julian Stecklina 40c023ecfe fetchGit: don't use std::filesystem to filter git repos 
Using std::filesystem means also having to link with -lstdc++fs on
some platforms and it's hard to discover for what platforms this is
needed. As all the functionality is already implemented as utilities,
use those instead.
 2020-03-30 00:32:42 +02:00
Bjørn Forsman f686efeed4 fetchGit: fix submodule corner case by fetching all refs from cacheDir 
Due to fetchGit not checking if rev is an ancestor of ref (there is even
a FIXME comment about it in the code), the cache repo might not have the
ref even though it has the rev. This doesn't matter when submodule =
false, but the submodule = true code blows up because it tries to fetch
the (missing) ref from the cache repo.

Fix this in the simplest way possible: fetch all refs from the local
cache repo when submodules = true.

TODO: Add tests.
 2020-03-29 22:29:58 +02:00
Bjørn Forsman cc522d0d23 fetchGit: fix submodules = true for dirty trees 2020-03-29 22:29:58 +02:00
Bjørn Forsman b306b7039e fetchGit: checkout rev instead of latest ref 
Major bugfix for the submodules = true code path.

TODO: Add tests.
 2020-03-29 22:29:58 +02:00
Bjørn Forsman 369fffd6f1 fetchGit: add submodules attribute to the .link file 
The .link file is used as a lock, so I think we should put the
"submodule" attribute in there since turning on submodules creates a new
.link file path.
 2020-03-29 22:29:58 +02:00
Bjørn Forsman 6864ad7cf5 fetchGit: fix submodule output attribute 
Before this change it would be false for all evaluations but the first.
Now it follows the input argument (as it should).
 2020-03-29 22:29:58 +02:00
Bjørn Forsman 002a3a95dc fetchGit: fix "fatal: couldn't find remote ref refs/heads/master" issue with submodules 2020-03-29 22:29:58 +02:00
Julian Stecklina cc4fe977e5 Link to stdc++fs 
Some platforms seem to still require linking with stdc++fs to enable
STL std::filesystem support.
 2020-03-29 22:29:58 +02:00
Julian Stecklina 435366ed3c Rename fetchGit fetchSubmodules to just submodules 2020-03-29 22:29:58 +02:00
Julian Stecklina c8d33de777 Add git submodule fixes from @bjornfor 
This fixes fetching repositories with no submodules and also cleans up
.git files in checkouts.
 2020-03-29 22:29:57 +02:00
Julian Stecklina f58604ac32 Add fetchSubmodules to builtins.fetchGit 
There are some downsides to this features:

 - Submodules are not cached (unlike the root repo),
 - Full checkouts are created in a temporary directory.
 2020-03-29 22:29:57 +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 2fccef0c59 Warn about --override-input / --update-input flags that don't match an input 2020-03-28 19:09:36 +01:00
Eelco Dolstra 2287e2f279 nix flake info: Show flake subdirectory 2020-03-28 18:05:50 +01:00
Eelco Dolstra 015f8f1c13 Improve lock file generation 
This is now done in a single pass. Also fixes some issues when
updating flakes with circular dependencies. Finally, when using
'--recreate-lock-file --commit-lock-file', the commit message now
correctly shows the differences.
 2020-03-27 21:08:41 +01:00
Eelco Dolstra 3fa1e7dace Fix diffLockFiles() 2020-03-27 16:15:50 +01:00
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 76e7d958ed Fix coverage build 
https://hydra.nixos.org/build/110757285
(cherry picked from commit b430a81a1f)
 2020-03-24 14:06:47 +01:00
Eelco Dolstra 231a8aa2c2 nix edit: Support non-derivation attributes 
E.g.

  $ nix edit .#nixosConfigurations.bla

now works.

(cherry picked from commit d2032edb2f)
 2020-03-24 14:06:47 +01:00
Eelco Dolstra c1ca4f0acc findAlongAttrPath(): Return position 
(cherry picked from commit 0b013a54dc)
 2020-03-24 14:06:47 +01:00
Eelco Dolstra 1eb952d27a findAlongAttrPath(): Throw AttrPathNotFound 
(cherry picked from commit 6b0ca8e803)
 2020-03-24 14:06:47 +01:00
Eelco Dolstra c34a20e1f6 EvalState::allocAttr(): Add convenience method 
(cherry picked from commit c02da99757)
 2020-03-24 13:26:37 +01:00
Eelco Dolstra 1537e270fb Merge remote-tracking branch 'origin/master' into flakes 2020-03-20 13:15:11 +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 d1165d8791
Require shallow clones to be requested explicitly 
If you do a fetchTree on a Git repository, whether the result contains
a revCount attribute should not depend on whether that repository
happens to be a shallow clone or not. That would complicate caching a
lot and would be semantically messy. So applying fetchTree/fetchGit to
a shallow repository is now an error unless you pass the attribute
'shallow = true'. If 'shallow = true', we don't return revCount, even
if the repository is not actually shallow.

Note that Nix itself is not doing shallow clones at the moment. But it
could do so as an optimisation if the user specifies 'shallow = true'.

Issue #2988.
 2020-03-17 22:35:29 +01:00
Eelco Dolstra 2a4e4f6a6e
Unified fetcher caching system 2020-03-17 22:35:29 +01:00
Eelco Dolstra fbcb897e21
Add a test for shallow Git clones 
Also, don't return a revCount anymore for shallow or dirty Git trees,
since it's incorrect.

Closes #2988.
 2020-03-16 13:20:32 +01:00
John Ericson 68fe0d9809 Add missing #include <regex> 2020-03-13 21:24:35 -04:00
Eelco Dolstra ae9119167e Change the lock file to a graph 
This enables support for cycles between flakes.
 2020-03-12 22:06:57 +01:00
Eelco Dolstra e188fe7c6d Move call-flake.nix into libexpr 2020-03-11 17:04:51 +01:00
Eelco Dolstra 35f6651735 Merge remote-tracking branch 'origin/master' into flakes 2020-03-11 17:03:38 +01:00
Eelco Dolstra 9950cdec35 Move some corepkgs into the nix binary 2020-03-11 16:57:48 +01:00
Eelco Dolstra e02481ded2 parseExprFromString(): Use std::string_view 2020-03-11 16:56:29 +01:00
Eelco Dolstra cfc38257cf Fix flake subdirectory handling 2020-03-10 19:21:47 +01:00
Eelco Dolstra 73769b28e3 Move calling flakes into a Nix helper function (call-flake.nix) 2020-03-09 15:28:41 +01:00
Eelco Dolstra 5a1514adb8 Add 'flake' attribute to lock files to denote non-flakes 2020-03-09 15:27:49 +01:00
Eelco Dolstra 73b6d87e17
Merge remote-tracking branch 'origin/master' into flakes 2020-03-04 13:58:42 +01:00
Eelco Dolstra 401b5bc541
builtins.cache: Cache regular expressions 
The evaluator was spending about 1% of its time compiling a small
number of regexes over and over again.
 2020-03-04 11:44:33 +01:00
Eelco Dolstra 73c9840569 Restore subdir -> dir 
Got this mixed up somewhere.
 2020-02-20 23:44:06 +01:00
Eelco Dolstra d068f9ffff Restore subdir support in registries 
Hacky...
 2020-02-20 22:14:44 +01:00
Eelco Dolstra 890df325c7
fetchTree: Use a feature flag 2020-02-20 13:36:16 +01:00
Eelco Dolstra 46a284263f Fix build 2020-02-14 22:45:33 +01:00
Eelco Dolstra 6208d24c38 Merge remote-tracking branch 'origin/master' into flakes 2020-02-14 22:42:35 +01:00
Eelco Dolstra 9af10b753c Bindings::get(): std::optional<Attr *> -> Attr * 
Returning a nullable type in an optional is silly.
 2020-02-13 17:15:05 +01:00
Eelco Dolstra 26dacc0983 Add fetchTree builtin function 
This allows all supported fetchers to be used, e.g.

  builtins.fetchTree {
    type = "github";
    owner = "NixOS";
    repo = "nix";
    rev = "d4df99a3349cf2228a8ee78dea320afef86eb3ba";
  }
 2020-02-11 23:53:46 +01:00
Eelco Dolstra d2032edb2f nix edit: Support non-derivation attributes 
E.g.

  $ nix edit .#nixosConfigurations.bla

now works.
 2020-02-07 14:22:01 +01:00
Eelco Dolstra 0b013a54dc findAlongAttrPath(): Return position 2020-02-07 14:08:24 +01:00
Eelco Dolstra 379852a152 Registry: Use attr notation instead of URLs 2020-02-06 14:27:31 +01:00
Eelco Dolstra be2580be01 Warn when we commit a new revision 2020-02-05 15:47:11 +01:00
Eelco Dolstra 750c993f00 Improve commit subject line 2020-02-05 15:31:16 +01:00
Eelco Dolstra 9d7fb62db6 Add option --commit-lock-file 2020-02-05 14:48:49 +01:00
Eelco Dolstra 0a4e911cf4 Install headers in the correct location 2020-02-03 18:04:09 +01:00
Eelco Dolstra a2628b43bb Fix URL parser 
Fixes #3062.
 2020-02-03 15:27:26 +01:00
Eelco Dolstra 44d6421160 Emit narHash attribute 2020-02-03 14:15:39 +01:00
Eelco Dolstra d5334c466b
Automatically do git/hg add on flake.lock 2020-02-02 16:33:22 +01:00
Eelco Dolstra f83acbbfe3
Don't store fragment in FlakeRef 2020-02-02 16:33:19 +01:00
Eelco Dolstra 86748d3571
Re-read flake after updating flake.lock 
Otherwise we'll evaluate the flake with the wrong metadata (rev, ...).
 2020-02-02 15:46:30 +01:00
Eelco Dolstra af35b318f3
Detect circular flake imports 
Fixes #2997.
 2020-02-02 13:14:34 +01:00
Eelco Dolstra 94a94da075
Substitute flake inputs 
This improves reproducibility and may be faster than fetching from the
original source (especially for git/hg inputs, but probably also for
github inputs - our binary cache is probably faster than GitHub's
dynamically generated tarballs).

Unfortunately this doesn't work for the top-level flake since even if
we know the NAR hash of the tree, we don't know the other tree
attributes such as revCount and lastModified.

Fixes #3253.
 2020-02-02 12:41:23 +01:00
Eelco Dolstra fad9faf354
Add TreeInfo::computeStorePath() 2020-02-02 12:29:53 +01:00
Eelco Dolstra 958ec5de56
Cleanup 2020-02-02 11:31:58 +01:00
Eelco Dolstra b270869466
Renamed ref / resolvedRef -> lockedRef 2020-02-02 00:06:59 +01:00
Eelco Dolstra 887730aab3
Remove superfluous TreeInfo::rev field 2020-02-01 23:54:20 +01:00
Eelco Dolstra b9d64f9318
Record TreeInfo in the lock file 
Necessary for #3253.
 2020-02-01 23:33:44 +01:00
Eelco Dolstra 8451298b35
Factor out TreeInfo 2020-02-01 22:06:55 +01:00
Eelco Dolstra 54037f4e2d Allow flake input specification via attributes rather than a URL 
E.g.

  inputs.dwarffs = {
    type = "github";
    owner = "edolstra";
    repo = "dwarffs";
  };

rather than

  inputs.dwarffs.url = github:edolstra/dwarffs;
 2020-01-31 20:50:46 +01:00
Eelco Dolstra 185c3c8240 Cleanup 2020-01-31 19:35:28 +01:00
Eelco Dolstra 8414685c0f Change lock file format to use an attribute representation of flake refs rather than URLs 2020-01-31 19:16:40 +01:00
Eelco Dolstra b9f93e7386 Check LockedInput::computeStorePath() 2020-01-30 00:13:37 +01:00
Eelco Dolstra b9fb372075 Add --update-input flag to update a specific flake input 
Typical usage:

  $ nix flake update ~/Misc/eelco-configurations/hagbard --update-input nixpkgs

to update the 'nixpkgs' input of a flake while leaving every other
input unchanged.

The argument is an input path, so you can do e.g. '--update-input
dwarffs/nixpkgs' to update an input of an input.

Fixes #2928.
 2020-01-29 23:14:27 +01:00
Eelco Dolstra 88b44b1e94 Fix flake update check 2020-01-29 23:14:23 +01:00
Eelco Dolstra 68e0ca608f Revive the flake cache 
Not that it matters a lot anymore - we respect lock files of inputs
now, so we're doing a lot fewer flake lookups.
 2020-01-29 21:10:27 +01:00
Eelco Dolstra 26f895a26d Clean up the lock file handling flags 
Added a flag --no-update-lock-file to barf if the lock file needs any
changes. This is useful for CI systems if you're building a
checkout. Fixes #2947.

Renamed --no-save-lock-file to --no-write-lock-file. It is now a fatal
error if the lock file needs changes but --no-write-lock-file is not
given.
 2020-01-29 21:04:28 +01:00
Eelco Dolstra f68bed7f67 Add flag --override-input to override specific lock file entries 
E.g.

  $ nix flake update ~/Misc/eelco-configurations/hagbard \
    --override-input 'dwarffs/nixpkgs' ../my-nixpkgs

overrides the 'nixpkgs' input of the 'dwarffs' input of the top-level
flake.

Fixes #2837.
 2020-01-29 18:41:25 +01:00
Eelco Dolstra c39c2503f7 Remove debug message 2020-01-27 14:28:57 +01:00