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Author SHA1 Message Date
John Ericson 5f4d2ac091 Improve store object section 
In particular, Nix is *not* like Git, so that needs to be fixed.
 2022-08-04 12:37:46 +02:00
John Ericson 1bbad62c7d doc: File system data -> file system object, to match Nix 2022-08-04 12:37:46 +02:00
John Ericson 838ba26fda Rename files after store entry -> store object rename 2022-08-04 12:37:46 +02:00
John Ericson 4e2d5ae202 doc: Store entry -> store object 
This matches the terminology in Eelco's thesis.
 2022-08-04 12:37:46 +02:00
John Ericson e308602fdf Update doc/manual/src/design/store/drvs/drvs.md 
Co-authored-by: Matthieu Coudron <teto@users.noreply.github.com>
 2022-08-04 12:37:46 +02:00
John Ericson cdb0bf3b65 Update doc/manual/src/design/overview.md 
Co-authored-by: Valentin Gagarin <valentin@fricklerhandwerk.de>
 2022-08-04 12:37:46 +02:00
John Ericson 75c5191a1f Update doc/manual/src/design/overview.md 
Co-authored-by: Valentin Gagarin <valentin@fricklerhandwerk.de>
 2022-08-04 12:37:46 +02:00
John Ericson a04340f9a1 Update doc/manual/src/design/overview.md 
Co-authored-by: Valentin Gagarin <valentin@fricklerhandwerk.de>
 2022-08-04 12:37:46 +02:00
John Ericson f5386d7059 Fix stub file's name 2022-08-04 12:37:46 +02:00
John Ericson 678d75baea Start on the derivations section 2022-08-04 12:37:46 +02:00
John Ericson e3a0209a9e Move the bits on relocating store entires to the end 
They are too advanced for up front.
 2022-08-04 12:37:46 +02:00
John Ericson a210504bc7 Apply suggestions from code review 2022-08-04 12:37:46 +02:00
John Ericson e64633f98f Flesh out TOC 2022-08-04 12:37:46 +02:00
John Ericson a2b3160f28 Briefly describe the digest of a store path 2022-08-04 12:37:46 +02:00
John Ericson 523359d133 WIP: Document the design of Nix 
The current docs are all "how to do things" and no "what is Nix" or "why
are things the way they are".

I see lots of misconception on the wider internet, and I also think we
would benefit from a "living document" to answer some questions people
currently turn to the thesis for.

I think a new section of the manual can address all these issues.
 2022-08-04 12:37:46 +02:00
Valentin Gagarin 499ed26508 manual: remove "Writing Nix Expressions" chapter 
it is out of date, all over the place in level of detail, is really
about `nixpkgs`, and in general instructions should not be part of
a reference manual.

also:
- update redirects and internal links
- use "Nix language" consistently
 2022-08-04 11:59:25 +02:00
Erik Arvstedt 4c8441be0a docs/flake-update: fix example 2022-08-04 09:45:30 +02:00
Erik Arvstedt 53833dfb40 libexpr/flake: remove FIXME 
Line 593 checks that all overrides (i.e. all elements of
`lockFlags.inputOverrides`) are members of `overridesUsed`.
 2022-08-04 09:45:29 +02:00
Erik Arvstedt c9f446ede1 flakeref: fix comment 2022-08-04 09:45:28 +02:00
Eelco Dolstra 075bf6e556
Merge pull request #6861 from edolstra/fix-count-calls 
Fix NIX_COUNT_CALLS=1
 2022-08-03 18:26:01 +02:00
Eelco Dolstra ccbd906c86 Fix NIX_COUNT_CALLS=1 
Also, make the JSON writer support std::string_view.

Fixes #6857.
 2022-08-03 17:46:51 +02:00
Théophane Hufschmitt 7d1ccd9105
Merge pull request #6846 from fricklerhandwerk/values 
manual: use subheadings for primitive types
 2022-08-03 14:50:41 +02:00
Théophane Hufschmitt c55bea4204 Fix the html id of the list headers 2022-08-03 14:16:00 +02:00
Félix Baylac-Jacqué b47b6a418d
tests/check.sh: add nix3-build check test 2022-08-03 12:17:13 +02:00
Valentin Gagarin ceed4d4142 encode primitive as list with anchors 
to make it consistent with builtins and configuration options
 2022-08-03 11:25:41 +02:00
Théophane Hufschmitt d1cda07ce4 Don't use -load_all on darwin 
That flag breaks `-lc++fs` (introducing a duplicate symbol for some
reason). Besides, it was apparently needed for bzip2, but we're not using bzip2
anymore.
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt 1ba5b3e001 Make moveFile more atomic 
Rather than directly copying the source to its dest, copy it first to a
temporary location, and eventually move that temporary.
That way, the move is at least atomic from the point-of-view of the destination
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt 90f9680733 Only use renameFile where needed 
In most places the fallback to copying isn’t needed and can actually be
bad, so we’d rather not transparently fallback
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt d71d9e9fbf moveFile -> renameFile 
`move` tends to have this `mv` connotation of “I will copy it for you if
needs be”
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt a4f0fd633c Link against c++fs on darwin 
Required by the old clang version
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt c5db1821a9 Re-implement the recursive directory copy 
The recursive copy from the stl doesn’t exactly do what we need because
1. It doesn’t delete things as we go
2. It doesn’t keep the mtime, which change the nars

So re-implement it ourselves. A bit dull, but that way we have what we want
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt 6f89fb6008 rename: Fallback to a copy if the filesystems mismatch 
In `nix::rename`, if the call to `rename` fails with `EXDEV` (failure
because the source and the destination are in a different filesystems)
switch to copying and removing the source.

To avoid having to re-implement the copy manually, I switched the
function to use the c++17 `filesystem` library (which has a `copy`
function that should do what we want).

Fix #6262
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt c2de0a232c Create a wrapper around stdlib’s rename 
Directly takes some c++ strings, and gently throws an exception on error
(rather than having to inline this logic everywhere)
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt 8119390abc Move some fs-related functions to their own file 
Unclutter `util.cc` a bit
 2022-08-03 10:27:25 +02:00
Théophane Hufschmitt 780a479386
Merge pull request #6851 from K900/patch-1 
doc/distributed-builds: don't use deprecated alias
 2022-08-02 07:17:09 +02:00
Ilya K f675ba5331
doc/distributed-builds: don't use deprecated alias 
`nix ping-store` -> `nix store ping`.
 2022-08-01 13:50:35 +03:00
Félix Baylac-Jacqué 1467a98d4c
derivation-goal.cc: remove bmCheck custom return branch on buildDone 
Once a derivation goal has been completed, we check whether or not
this goal was meant to be repeated to check its output.

An early return branch was preventing the worker to reach that repeat
code branch, hence breaking the --check command (#2619).

It seems like this early return branch is an artifact of a passed
refactoring. As far as I can tell, buildDone's main branch also
cleanup the tmp directory before returning.
 2022-08-01 11:39:19 +02:00
Jeremy Fleischman 297f6b5d56
Fix link to hacking doc 
Right now,
https://hydra.nixos.org/job/nix/master/build.x86_64-linux/latest/download-by-type/doc/manual/contributing/hacking.html
redirects to
https://hydra.nixos.org/build/183877779/download/1/manual/contributing/hacking.html,
which gives me a "500 Internal Server Error". Not super useful =(

Feel free to ignore if someone's working to fix the 500 I was running
into.
 2022-07-30 09:12:50 -07:00
Rok Garbas e9178d7d4a
Merge pull request #6844 from centromere/custom-nix-conf 
docker.nix: Allow Nix configuration to be customized
 2022-07-29 13:47:24 +02:00
Valentin Gagarin 27138f1ec6
manual: use singular in body, too 
Co-authored-by: Cole Helbling <cole.e.helbling@outlook.com>
 2022-07-28 23:30:07 +02:00
Valentin Gagarin 41a3b315fd manual: values -> data types 2022-07-28 17:25:25 +02:00
Valentin Gagarin 8f4fab8fab manual: use singular for headings 2022-07-28 17:25:18 +02:00
Valentin Gagarin 4ff48854b8 manual: simple values -> primitives 
"simple" is a loaded term
 2022-07-28 17:23:57 +02:00
Valentin Gagarin 3063e5b94c manual: use subheadings for primitive types 
this gives us HTML anchors for each of them
 2022-07-28 17:23:57 +02:00
Eelco Dolstra 86fcd4f692
Merge pull request #6845 from fricklerhandwerk/attrset 
manual: set -> attribute set
 2022-07-28 16:55:03 +02:00
Valentin Gagarin 85cdaebcd6 manual: set -> attribute set 
reword description to have shorter sentences.
 2022-07-28 16:10:24 +02:00
Valentin Gagarin be4654c344 manual: fix section title in table of contents 2022-07-28 15:55:41 +02:00
Alex Wied 228028fc1a docker.nix: Allow Nix configuration to be customized 2022-07-28 03:36:39 -04:00
Théophane Hufschmitt 2805439335
Merge pull request #6814 from amjoseph-nixpkgs/pr/sandbox-error-messages 
local-derivation-goal.cc: improve error messages when sandboxing fails
 2022-07-22 13:27:52 +02:00
Théophane Hufschmitt e10807cdbb
Merge pull request #6813 from centromere/cgroup-cpu-detection 
libstore/globals.cc: Automatically set cores based on cgroup CPU limit
 2022-07-22 10:15:32 +02:00