Commit graph

2895 commits

Author SHA1 Message Date
Eelco Dolstra 8af4f886e2 Fix deadlock in LocalStore::addSignatures()
Fixes #4367.
2021-01-05 11:47:29 +01:00
Eelco Dolstra 6262a70363
scanForReferences: Remove misleading comment
References have always been determined only by the hash part, not the
name or the store prefix.

Fixes #4396.
2020-12-28 17:21:19 +01:00
John Ericson fed1237246 Test nix-build with non-local-store --store
Just a few small things needed fixing!
2020-12-23 22:42:06 +00:00
John Ericson 85f2e9e8fa Expose schedule entrypoints to all stores
Remote stores still override so the other end schedules.
2020-12-23 22:42:06 +00:00
John Ericson 450c3500f1 Crudely make worker only provide a Store, not LocalStore
We downcast in a few places, this will be refactored to be better later.
2020-12-23 22:42:06 +00:00
John Ericson 57062179ce Move some PKI stuff from LocalStore to Store 2020-12-23 22:42:06 +00:00
Eelco Dolstra 8927cba62f
Merge pull request #4366 from NixOS/readInvalidDerivation-on-remote-caches
Use the fs accessor for readInvalidDerivation
2020-12-23 11:55:52 +01:00
John Ericson 1a1af75338 Overhaul store subclassing
We embrace virtual the rest of the way, and get rid of the
`assert(false)` 0-param constructors.

We also list config base classes first, so the constructor order is
always:

  1. all the configs
  2. all the stores

Each in the same order
2020-12-20 15:47:14 +00:00
regnat 4d45839499 Fix the detection of already built drv outputs
PRs #4370 and #4348 had a bad interaction in that the second broke the fist
one in a not trivial way.

The issue was that since #4348 the logic for detecting whether a
derivation output is already built requires some logic that was specific
to the `LocalStore`.

It happens though that most of this logic could be upstreamed to any `Store`,
which is what this commit does.
2020-12-17 11:35:24 +01:00
Eelco Dolstra ae3c3e3bb2
Merge pull request #4370 from NixOS/ca/more-precise-build-noop
Better detect when `buildPaths` would be a no-op
2020-12-16 14:54:04 +01:00
regnat cac8d5b742 Don't ignore an absent drv file in queryPartialDrvOutputMap
This ignore was here because `queryPartialDrvOutputMap` was used both
1. as a cache to avoid having to re-read the derivation (when gc-ing for
example), and
2. as the source of truth for ca realisations

The use-case 2. required it to be able to work even when the derivation
wasn't there anymore (see https://github.com/NixOS/nix/issues/4138).
However, this use-case is now handled by `queryRealisation`, meaning
that we can safely error out if the derivation isn't there anymore
2020-12-16 13:36:17 +01:00
Eelco Dolstra 3765174691
Merge pull request #4348 from NixOS/ca/use-hashmodulo
Use the hash modulo in the derivation outputs
2020-12-16 12:48:44 +01:00
regnat 962b82ef25 Fix BinaryCacheStore::registerDrvOutput
Was crashing because coercing a json document into a string is only
valid if the json is a string, otherwise we need to call `.dump()`
2020-12-16 10:54:36 +01:00
regnat 6e899278d3 Better detect when buildPaths would be a no-op
`buildPaths` can be called even for stores where it's not defined in case it's
bound to be a no-op.
The “no-op detection” mechanism was only detecting the case wher `buildPaths`
was called on a set of (non-drv) paths that were already present on the store.

This commit extends this mechanism to also detect the case where `buildPaths`
is called on a set of derivation outputs which are already built on the store.

This only works with the ca-derivations flag. It could be possible to
extend this to also work without it, but it would add quite a bit of
complexity, and it's not used without it anyways.
2020-12-16 10:36:16 +01:00
regnat 7080321618 Use the fs accessor for readInvalidDerivation
Extend `FSAccessor::readFile` to allow not checking that the path is a
valid one, and rewrite `readInvalidDerivation` using this extended
`readFile`.

Several places in the code use `readInvalidDerivation`, either because
they need to read a derivation that has been written in the store but
not registered yet, or more generally to prevent a deadlock because
`readDerivation` tries to lock the state, so can't be called from a
place where the lock is already held.
However, `readInvalidDerivation` implicitely assumes that the store is a
`LocalFSStore`, which isn't always the case.

The concrete motivation for this is that it's required for `nix copy
--from someBinaryCache` to work, which is tremendously useful for the
tests.
2020-12-15 20:10:46 +01:00
regnat 44c3fbc6e0 Fix addTextToStore for binary caches
Because of a too eager refactoring, `addTextToStore` used to throw an
error because the input wasn't a valid nar.

Partially revert that refactoring to wrap the text into a proper nar
(using `dumpString`) to make this method work again
2020-12-15 09:38:19 +01:00
Eelco Dolstra f2f60bf5d6
Merge pull request #4330 from NixOS/ca/properly-store-outputs
Properly store the outputs of CA derivations − take 2
2020-12-14 15:01:23 +01:00
Eelco Dolstra 92438c70d2
Merge pull request #4352 from jonringer/allow-private-caches
treat s3 permission errors as file-not-found
2020-12-13 13:39:20 +01:00
regnat e9b39f6004 Restrict the operations on drv outputs in recursive Nix
There's currently no way to properly filter them, so disallow them
altogether instead.
2020-12-11 21:17:25 +01:00
regnat bab1cda0e6 Use the hash modulo in the derivation outputs
Rather than storing the derivation outputs as `drvPath!outputName` internally,
store them as `drvHashModulo!outputName` (or `outputHash!outputName` for
fixed-output derivations).

This makes the storage slightly more opaque, but enables an earlier
cutoff in cases where a fixed-output dependency changes (but keeps the
same output hash) − same as what we already do for input-addressed
derivations.
2020-12-11 21:17:23 +01:00
regnat 8914e01e37 Store the realisations as JSON in the binary cache
Fix #4332
2020-12-11 21:05:09 +01:00
regnat 3ac9d74eb1 Rework the db schema for derivation outputs
Add a new table for tracking the derivation output mappings.

We used to hijack the `DerivationOutputs` table for that, but (despite its
name), it isn't a really good fit:

- Its entries depend on the drv being a valid path, making it play badly with
  garbage collection and preventing us to copy a drv output without copying
  the whole drv closure too;
- It dosen't guaranty that the output path exists;

By using a different table, we can experiment with a different schema better
suited for tracking the output mappings of CA derivations.
(incidentally, this also fixes #4138)
2020-12-11 20:41:32 +01:00
regnat 58cdab64ac Store metadata about drv outputs realisations
For each known realisation, store:
- its output
- its output path

This comes with a set of needed changes:

- New `realisations` module declaring the types needed for describing
  these mappings
- New `Store::registerDrvOutput` method registering all the needed informations
  about a derivation output (also replaces `LocalStore::linkDeriverToPath`)
- new `Store::queryRealisation` method to retrieve the informations for a
  derivations

This introcudes some redundancy on the remote-store side between
`wopQueryDerivationOutputMap` and `wopQueryRealisation`.
However we might need to keep both (regardless of backwards compat)
because we sometimes need to get some infos for all the outputs of a
derivation (where `wopQueryDerivationOutputMap` is handy), but all the
stores can't implement it − because listing all the outputs of a
derivation isn't really possible for binary caches where the server
doesn't allow to list a directory.
2020-12-11 20:41:32 +01:00
Michael Bishop 63b3536f50
treat s3 permission errors as file-not-found
Signed-off-by: Jonathan Ringer <jonringer117@gmail.com>
2020-12-11 09:49:24 -08:00
Eelco Dolstra 253571e4ec
Merge pull request #4342 from tweag/fix-remote-build-hook
fix remote build hook
2020-12-09 12:40:00 +01:00
Maximilian Bosch 93a8a005de
libstore/openStore: fix stores with IPv6 addresses
In `nixStable` (2.3.7 to be precise) it's possible to connect to stores
using an IPv6 address:

  nix ping-store --store ssh://root@2001:db8::1

This is also useful for `nixops(1)` where you could specify an IPv6
address in `deployment.targetHost`.

However, this behavior is broken on `nixUnstable` and fails with the
following error:

  $ nix store ping --store ssh://root@2001:db8::1
  don't know how to open Nix store 'ssh://root@2001:db8::1'

This happened because `openStore` from `libstore` uses the `parseURL`
function from `libfetchers` which expects a valid URL as defined in
RFC2732. However, this is unsupported by `ssh(1)`:

  $ nix store ping --store 'ssh://root@[2001:db8::1]'
  cannot connect to 'root@[2001:db8::1]'

This patch now allows both ways of specifying a store (`root@2001:db8::1`) and
also `root@[2001:db8::1]` since the latter one is useful to pass query
parameters to the remote store.

In order to achieve this, the following changes were made:

* The URL regex from `url-parts.hh` now allows an IPv6 address in the
  form `2001:db8::1` and also `[2001:db8::1]`.

* In `libstore`, a new function named `extractConnStr` ensures that a
  proper URL is passed to e.g. `ssh(1)`:

  * If a URL looks like either `[2001:db8::1]` or `root@[2001:db8::1]`,
    the brackets will be removed using a regex. No additional validation
    is done here as only strings parsed by `parseURL` are expected.

  * In any other case, the string will be left untouched.

* The rules above only apply for `LegacySSHStore` and `SSHStore` (a.k.a
  `ssh://` and `ssh-ng://`).

Unresolved questions:

* I'm not really sure whether we want to allow both variants of IPv6
  addresses in the URL parser. However it should be noted that both seem
  to be possible according to RFC2732:

  > This document incudes an update to the generic syntax for Uniform
  > Resource Identifiers defined in RFC 2396 [URL].  It defines a syntax
  > for IPv6 addresses and allows the use of "[" and "]" within a URI
  > explicitly for this reserved purpose.

* Currently, it's not supported to specify a port number behind the
  hostname, however it seems as this is not really supported by the URL
  parser. Hence, this is probably out of scope here.
2020-12-09 12:23:29 +01:00
regnat c87267c2a4 Store the final drv outputs in memory when building remotely
The `DerivationGoal` has a variable storing the “final” derivation
output paths that is used (amongst other things) to fill the environment
for the post build hook. However this variable wasn't set when the
build-hook is used, causing a crash when both hooks are used together.

Fix this by setting this variable (from the informations in the db) after a run
of the post build hook.
2020-12-09 10:45:12 +01:00
regnat 6758e65612 Revert "Re-query for the derivation outputs in the post-build-hook"
This reverts commit 1b1e076033.

Using `queryPartialDerivationOutputMap` assumes that the derivation
exists locally which isn't the case for remote builders.
2020-12-09 09:44:07 +01:00
Eelco Dolstra 82e5511594
Merge pull request #4325 from tweag/hide-local-store-sql-statements
Hide the sqlite statements declarations for the local store
2020-12-08 14:04:16 +01:00
regnat c0f21f08f8 Hide the sqlite statements declarations for the local store
These have no need to be in the public interface and it causes spurious
rebuilds each time one wants to add or remove a new statement.
2020-12-08 13:29:13 +01:00
regnat 1b1e076033 Re-query for the derivation outputs in the post-build-hook
We can't assume that the runtime state knows about them as they might have
been built remotely, in which case we must query the db again to get
them.
2020-12-08 11:11:02 +01:00
Matthew Bauer aa07502009 Always default to cache.nixos.org even when different nix store dir
Since 0744f7f, it is now useful to have cache.nixos.org in substituers
even if /nix/store is not the Nix Store Dir. This can always be
overridden via configuration, though.
2020-12-06 23:04:42 -06:00
Eelco Dolstra 1d1a85eb0a
Merge pull request #4318 from matthewbauer/add-slash-to-trusted-binary-cache
Canonicalize binary caches with ‘/’ when one is missing
2020-12-05 10:17:17 +01:00
Matthew Bauer b9a00fd15b Canonicalize binary caches with ‘/’ when one is missing
This checks if there is a trusted substituter with a slash, so
trusting https://cache.nixos.org also implies https://cache.nixos.org/
is trusted.
2020-12-04 22:17:19 -06:00
Matthew Bauer 3c9b7029ba Use com.apple.oahd.plist for rosetta 2 detection 2020-12-04 13:26:53 -06:00
Stéphan Kochen e20a3ec756 Fix compatibility with newer AWS SDKs
Tested against AWS SDK 1.8.99. Fixes #3201.
2020-12-04 19:36:09 +01:00
Matthew Bauer 4b9acf4e21 Use posix_spawn_setbinpref_np to advise which architecture to run
When running universal binaries like /bin/bash, Darwin XNU will choose
which architecture of the binary to use based on "binary preferences".
This change sets that to the current platform for aarch64 and x86_64
builds. In addition it now uses posix_spawn instead of the usual
execve. Note, that this does not prevent the other architecture from
being run, just advises which to use.

Unfortunately, posix_spawnattr_setbinpref_np does not appear to be
inherited by child processes in x86_64 Rosetta 2 translations, meaning
that this will not always work as expected.

For example:

  {
    arm = derivation {
      name = "test";
      system = "aarch64-darwin";
      builder = "/bin/bash";
      args = [ "-e" (builtins.toFile "test" ''
        set -x
        /usr/sbin/sysctl sysctl.proc_translated
        /usr/sbin/sysctl sysctl.proc_native
        [ "$(/usr/bin/arch)" = arm64 ]
        /usr/bin/touch $out
      '') ];
    };
    rosetta = derivation {
      name = "test";
      system = "x86_64-darwin";
      builder = "/bin/bash";
      args = [ "-e" (builtins.toFile "test" ''
        set -x
        /usr/sbin/sysctl sysctl.proc_translated
        /usr/sbin/sysctl sysctl.proc_native
        [ "$(/usr/bin/arch)" = i386 ]
        echo It works!
        /usr/bin/touch $out
      '') ];
    };
  }

`arm' fails on x86_64-compiled Nix, but `arm' and `rosetta' succeed on
aarch64-compiled Nix. I suspect there is a way to fix this since:

  $ /usr/bin/arch -arch x86_64 /bin/bash \
    -c '/usr/bin/arch -arch arm64e /bin/bash -c /usr/bin/arch'
  arm64

seems to work correctly. We may need to wait for Apple to update
system_cmds in opensource.apple.com to find out how though.
2020-12-03 15:41:59 -06:00
Matthew Bauer 9b1824ecbd Add extraPlatforms for Rosetta 2 macOS
macOS systems with ARM64 can utilize a translation layer at
/Library/Apple/usr/libexec/oah to run x86_64 binaries. This change
makes Nix recognize that and it to "extra-platforms". Note that there
are two cases here since Nix could be built for either x86_64 or
aarch64. In either case, we can switch to the other architecture.
Unfortunately there is not a good way to prevent aarch64 binaries from
being run in x86_64 contexts or vice versa - programs can always
execute programs for the other architecture.
2020-12-03 15:41:43 -06:00
regnat 0afab668fa Don't fail early when -j0 is passed
If the build closure contains some CA derivations, then we can't know
ahead-of-time that we won't build anything as early-cutoff might come-in
at a laster stage
2020-12-03 13:24:36 +01:00
Greg Hale d8fc1bb7b0 fix tokens documentation 2020-12-02 10:15:18 -05:00
Eelco Dolstra 1b79b5b983 read(): Use char * instead of unsigned char *
This gets rid of some pointless casts.
2020-12-02 14:17:27 +01:00
Eelco Dolstra faa31f4084 Sink: Use std::string_view 2020-12-02 14:17:27 +01:00
Eelco Dolstra e5cf501c77
Merge pull request #4284 from tweag/fixed-output-depending-on-ca
Allow fixed-output derivations to depend on (floating) content-addressed ones
2020-12-01 20:25:41 +01:00
regnat 438977731c shut up clang warnings
- Fix some class/struct discrepancies
- Explicit the overloading of `run` in the `Cmd*` classes
- Ignore a warning in the generated lexer
2020-12-01 15:04:03 +01:00
Eelco Dolstra 3b7e00ce22 Move primeCache() to Worker::run()
We need the missing path info to communicate the worker's remaining
goals to the progress bar.
2020-12-01 13:44:48 +01:00
regnat 9bd8184f1f Allow fixed-output derivations to depend on (floating) content-addressed ones
Fix an overlook of https://github.com/NixOS/nix/pull/4056
2020-11-27 15:39:24 +01:00
regnat 13c557fe82 fix the hash rewriting for ca-derivations 2020-11-25 11:33:00 +01:00
John Ericson 2113ae2d85 Make drv hash modulo memo table thread-safe
Let's get one step closer to the daemon not needing to fork.
2020-11-19 16:50:06 +00:00
Eelco Dolstra df5c69a94e
Merge pull request #4180 from Ma27/ssh-ng-substitute
Allow substituting paths when building remotely using `ssh-ng://`
2020-11-17 14:01:04 +01:00
Eelco Dolstra e6b7c7b79c Cleanup 2020-11-17 13:58:55 +01:00
Eelco Dolstra bccff827dc Fix deadlock in IFD through the daemon
Fixes #4235.
2020-11-17 13:50:36 +01:00
regnat 7de21f6664 Make the sql debug statements more useful
Print the expanded sql query (with the variables bound to their value) rather
than the original one in case of error
2020-11-17 10:05:45 +01:00
Jake Waksbaum 01db455733 Fix deadlock in nix-store when max-connections=1
This fixes a bug I encountered where `nix-store -qR` will deadlock when
the `--include-outputs` flag is passed and `max-connections=1`.

The deadlock occurs because `RemoteStore::queryDerivationOutputs` takes
the only connection from the connection pool and uses it to check the
daemon version. If the version is new enough, it calls
`Store::queryDerivationOutputs`, which eventually calls
`RemoteStore::queryPartialDerivationOutputMap`, where we take another
connection from the connection pool to check the version again. Because
we still haven't released the connection from the caller, this waits for
a connection to be available, causing a deadlock.

This diff solves the issue by using `getProtocol` to check the protocol
version in the caller `RemoteStore::queryDerivationOutputs`, which
immediately frees the connection back to the pool before returning the
protocol version. That way we've already freed the connection by the
time we call `RemoteStore::queryPartialDerivationOutputMap`.
2020-11-16 02:35:50 -05:00
Maximilian Bosch 3a63fc6cd5
Allow substituting paths when building remotely using ssh-ng://
Until now, it was not possible to substitute missing paths from e.g.
`https://cache.nixos.org` on a remote server when building on it using
the new `ssh-ng` protocol.

This is because every store implementation except legacy `ssh://`
ignores the substitution flag passed to `Store::queryValidPaths` while
the `legacy-ssh-store` substitutes the remote store using
`cmdQueryValidPaths` when the remote store is opened with `nix-store
--serve`.

This patch slightly modifies the daemon protocol to allow passing an
integer value suggesting whether to substitute missing paths during
`wopQueryValidPaths`. To implement this on the daemon-side, the
substitution logic from `nix-store --serve` has been moved into a
protected method named `Store::substitutePaths` which gets currently
called from `LocalStore::queryValidPaths` and `Store::queryValidPaths`
if `maybeSubstitute` is `true`.

Fixes #2770
2020-11-05 20:12:37 +01:00
Eelco Dolstra e8c379555f LocalStore: Get rid of recursive_mutex 2020-11-03 14:45:24 +01:00
Eelco Dolstra 797a52e31d Add FIXME 2020-11-03 14:45:24 +01:00
Eelco Dolstra 7cf874c17d Don't use readDerivation() in addValidPath()
readDerivation() requires a valid path.

Fixes #4210.
2020-11-02 18:46:44 +01:00
Eelco Dolstra ab2ef851b6
Merge pull request #4207 from hercules-ci/fix-RemoteStore-filterSource-deadlock
Fix RemoteStore pool deadlock in filterSource etc
2020-11-02 14:46:10 +01:00
Eelco Dolstra db5424bf09 Don't send eval-related settings to the daemon 2020-11-02 13:57:58 +01:00
Robert Hensing e8a45d07bc Restore RestrictedStore.addToStoreFromDump implementation
It was accidentally removed in commit ca30abb3fb
2020-10-31 23:56:03 +01:00
Robert Hensing 2192cac634 Fix RemoteStore pool deadlock in filterSource etc 2020-10-30 21:47:34 +01:00
Eelco Dolstra ff4dea63c9 Generalize extra-* settings
This removes the extra-substituters and extra-sandbox-paths settings
and instead makes every array setting extensible by setting
"extra-<name> = <value>" in the configuration file or passing
"--<name> <value>" on the command line.
2020-10-29 18:17:39 +01:00
stev 869c0321ff Alter "wanted:" to "specified:" in hash mismatch output
This makes it even clearer which of the two hashes was specified in the
nix files. Some may think that "wanted" and "got" is obvious, but:
"got" could mean "got in nix file" and "wanted" could mean "want to see in nix file".
2020-10-29 00:33:14 +01:00
Eelco Dolstra 02a1facbdc
Merge pull request #4056 from tweag/non-ca-depending-on-ca
Allow non-CA derivations to depend on CA ones
2020-10-27 17:38:29 +01:00
regnat bc081bcd81 Inline unkownHashes
See https://github.com/NixOS/nix/pull/4056#discussion_r493661632
2020-10-27 07:29:25 +01:00
regnat c092fa4702 Allow non-CA derivations to depend on CA derivations 2020-10-27 07:29:23 +01:00
Christian Kampka 461cf2b856
Add NIX_CONFIG env var for applying nix.conf overrides 2020-10-21 13:41:26 +02:00
Eelco Dolstra fda835b231
Merge pull request #4143 from obsidiansystems/typed-goal-maps
Properly type the derivation and substitution goal maps
2020-10-18 18:12:21 +02:00
Robert Hensing bd9eb5c743 DerivationGoal: only retry if output closure incomplete is only problem 2020-10-18 14:26:37 +02:00
Robert Hensing 94f1e4a441 Typo 2020-10-18 14:26:37 +02:00
John Ericson 7ed46c1574 Explain that upcast_goal is still a static cast 2020-10-17 21:50:12 +00:00
John Ericson 57d0432b39 Just use auto in two places. 2020-10-17 21:47:52 +00:00
John Ericson e6f8ae56d8 tab -> space 2020-10-17 21:45:31 +00:00
John Ericson 0fefc2a439 Merge remote-tracking branch 'upstream/master' into typed-goal-maps 2020-10-14 20:49:01 +00:00
Eelco Dolstra 11882d7c7c Create /etc/passwd *after* figuring out the sandbox uid/gid
Fixes build failures like

  # nix log /nix/store/gjaa0psfcmqvw7ivggsncx9w364p3s8s-sshd.conf-validated.drv
  No user exists for uid 30012
2020-10-14 12:20:58 +02:00
John Ericson 55592b253f Add some more docs 2020-10-13 18:04:24 +00:00
John Ericson 13804f126e Merge remote-tracking branch 'upstream/master' into typed-goal-maps 2020-10-13 18:02:32 +00:00
Eelco Dolstra 2653801939 Merge branch 'split_build_cc' of https://github.com/obsidiansystems/nix 2020-10-13 15:36:55 +02:00
John Ericson 1b8ebe92dc Merge remote-tracking branch 'obsidian/split_build_cc' into typed-goal-maps 2020-10-12 20:47:22 +00:00
John Ericson a73959e6be Merge remote-tracking branch 'upstream/master' into split_build_cc 2020-10-12 17:20:46 +00:00
John Ericson d334fd4882 Merge branches 'split_build_hh-0', 'split_build_hh-1', 'split_build_hh-2', 'split_build_hh-3' and 'split_build_hh-4' into split_build_cc 2020-10-12 17:20:12 +00:00
John Ericson 542972f029 Trim worker.hh 2020-10-12 17:16:48 +00:00
John Ericson 0e2306204a Rename to hand-hold git (worker.hh) 2020-10-12 17:16:48 +00:00
John Ericson 3ffa3546bd Trim substitution-goal.hh 2020-10-12 17:16:25 +00:00
John Ericson e77a2344d5 Rename to hand-hold git (substitution-goal.hh) 2020-10-12 17:16:25 +00:00
John Ericson d585b4c54f Trim hook-instance.hh 2020-10-12 17:16:13 +00:00
John Ericson 10b749a156 Rename to hand-hold git (hook-instance.hh) 2020-10-12 17:16:13 +00:00
John Ericson 8067d32f2a Trim goal.hh 2020-10-12 17:16:00 +00:00
John Ericson 0d0e345cdc Rename to hand-hold git (goal.hh) 2020-10-12 17:16:00 +00:00
John Ericson 2ce726947a Trim derivation-goal.hh 2020-10-12 17:15:32 +00:00
John Ericson 4eb8c69853 Rename to hand-hold git (derivation-goal.hh) 2020-10-12 17:15:32 +00:00
John Ericson f7099965bf Change .cc files to use split build headers 2020-10-12 17:08:52 +00:00
John Ericson 5a97621d6d Prepare for build/*.hh headers 2020-10-12 17:07:51 +00:00
volth eee18f88dd
Handle amount of disk space saved by hard linking being negative
Fixes bogus messages like "currently hard linking saves 17592186044416.00 MiB".
2020-10-12 16:06:38 +00:00
John Ericson 15fdb7cc6b Split out uds-remote-store.{cc.hh} 2020-10-11 17:37:05 +00:00
John Ericson 38e3897162 Copy {uds-,}remote-store.{cc,hh}
This prepares for the splitting that happens in the next commit.
2020-10-11 17:18:26 +00:00
John Ericson 5c74a6147b Properly type the derivation and substitution goal maps
As a bonus, Worker::removeGoal is less inefficient.
2020-10-11 17:07:14 +00:00
John Ericson 8cc510fb79 Merge branches 'build-1', 'build-2', 'build-3', 'build-4', 'build-5', 'build-6', 'build-7' and 'build-8' into split_build_cc 2020-10-11 16:44:34 +00:00
John Ericson bcb67e1ed8 Trim lock.cc 2020-10-11 16:44:19 +00:00
John Ericson e0be04129b Rename to hand-hold git (lock.cc) 2020-10-11 16:44:14 +00:00