Commit graph

105 commits

Author SHA1 Message Date
Carlo Nucera 1ad6394b33 Add Hash::dummy to signal default value
We did this in the same spirit of the dummy value that's present in
libstore/path.hh
2020-08-05 15:11:49 -04:00
John Ericson c58c6165c5 Remove period at the end of the exception message 2020-07-20 17:43:19 +00:00
John Ericson bf61871271 parser.hh -> split.hh 2020-07-20 17:42:34 +00:00
John Ericson cc0d77f8c9 Merge branch 'hash-always-has-type' of github.com:obsidiansystems/nix into better-ca-parse-errors 2020-07-16 17:28:52 +00:00
John Ericson 5ea817dace Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-16 14:58:53 +00:00
Carlo Nucera d090562348 Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-15 17:21:01 -04:00
Eelco Dolstra 832e111494 Merge remote-tracking branch 'origin/master' into flakes 2020-07-14 13:56:18 +02:00
Eelco Dolstra 493961b689 Remove istringstream_nocopy 2020-07-13 18:31:19 +02:00
Eelco Dolstra 54712aaf8a Merge remote-tracking branch 'origin/master' into flakes 2020-07-06 16:40:10 +02:00
John Ericson 3134db1a83 Merge branch 'hash-always-has-type' of github.com:obsidiansystems/nix into better-ca-parse-errors 2020-07-03 14:12:38 +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
John Ericson 13796be78d Have splitPrefix and splitPrefixTo parser helpers 2020-07-02 23:18:22 +00:00
John Ericson a7cd7425d9 Move getParsedTypeAndSRI to a more suitable location
Also mark it static
2020-07-02 23:10:11 +00:00
Eelco Dolstra b5e4253697 Fix abort in 'nix develop' 2020-07-02 18:24:11 +02:00
Carlo Nucera b6b10b1d4c Write the implementation for parseNonSRIUnprefixed 2020-07-02 11:34:40 -04:00
Carlo Nucera ea48e3a5b5 Abstract common parsing functionality 2020-07-02 11:29:33 -04:00
Carlo Nucera 36cbc74689 Inline and simplify in parseAnyPrefixed 2020-07-02 11:21:00 -04:00
Carlo Nucera 9462d8a50b Rename fromSRI to parseSRI for constistency 2020-07-02 11:11:18 -04:00
Carlo Nucera f61bc45d19 Get rid of the std::pair 2020-07-02 11:09:04 -04:00
Carlo Nucera 27c8029573 Inline newFunction 2020-07-02 11:01:10 -04:00
Carlo Nucera 343d1569b1 Fix test suite 2020-07-02 10:48:47 -04:00
Carlo Nucera 263ccdd489 Rename two hash constructors to proper functions 2020-07-01 18:34:18 -04:00
Carlo Nucera c8c4bcf90e Inline Hash::init() 2020-07-01 18:03:35 -04:00
Carlo Nucera 6faeec3b2a Keep the previous name, for diffing 2020-07-01 17:50:34 -04:00
Carlo Nucera c2e7f7a712 Fixed build, we still have test errors 2020-07-01 17:32:06 -04:00
Carlo Nucera b798efb829 WIP initial design 2020-06-30 14:10:30 -04:00
Carlo Nucera a1f66d1d9e Factor the prefix splitting in hash 2020-06-30 12:49:00 -04:00
John Ericson 987a4a0be9 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-29 18:03:21 +00:00
Eelco Dolstra adf2fbbdc2 Merge remote-tracking branch 'origin/master' into flakes 2020-06-26 08:46:46 +02:00
Eelco Dolstra de2641ae99 Fix empty std::optional dereference in writeDerivation()
https://hydra.nixos.org/build/123017579
2020-06-25 15:50:30 +02:00
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
John Ericson 507aa48739 WIP: Make Hash always store a valid hash type 2020-06-19 21:48:57 +00:00
John Ericson e288c0987a Merge remote-tracking branch 'upstream/master' into validPathInfo-ca-proper-datatype 2020-06-19 18:44:24 +00:00
John Ericson c1892a5316 tabs -> spaces 2020-06-19 17:49:57 +00:00
John Ericson 3fc58a9638 Remove some Base:: that crept in 2020-06-19 00:24:47 +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
Eelco Dolstra 1524752c17 Merge remote-tracking branch 'origin/master' into flakes 2020-06-17 10:26:52 +02:00
John Ericson f6f01416b7 Use std::string_view in a few more places 2020-06-12 21:32:30 +00:00
Eelco Dolstra 2853ba4ab2 Fix build 2020-06-12 19:00:48 +02:00
Matthew Bauer ea0d29d99a Provide base argument to to_string 2020-06-12 10:18:27 -05:00
Matthew Bauer b260c9ee03 Add newHashAllowEmpty helper function
This replaces the copy&paste with a helper function in hash.hh.
2020-06-12 10:11:16 -05:00
John Ericson 1fcd3afc38 Fix hashes 2020-06-02 20:35:17 +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
Eelco Dolstra 91ddee6bf0 nix: Implement basic bash completion 2020-05-10 20:32:21 +02:00
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 0abb3ad537 Allow content-addressable paths to have references
This adds a command 'nix make-content-addressable' that rewrites the
specified store paths into content-addressable paths. The advantage of
such paths is that 1) they can be imported without signatures; 2) they
can enable deduplication in cases where derivation changes do not
cause output changes (apart from store path hashes).

For example,

  $ nix make-content-addressable -r nixpkgs.cowsay
  rewrote '/nix/store/g1g31ah55xdia1jdqabv1imf6mcw0nb1-glibc-2.25-49' to '/nix/store/48jfj7bg78a8n4f2nhg269rgw1936vj4-glibc-2.25-49'
  ...
  rewrote '/nix/store/qbi6rzpk0bxjw8lw6azn2mc7ynnn455q-cowsay-3.03+dfsg1-16' to '/nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16'

We can then copy the resulting closure to another store without
signatures:

  $ nix copy --trusted-public-keys '' ---to ~/my-nix /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16

In order to support self-references in content-addressable paths,
these paths are hashed "modulo" self-references, meaning that
self-references are zeroed out during hashing. Somewhat annoyingly,
this means that the NAR hash stored in the Nix database is no longer
necessarily equal to the output of "nix hash-path"; for
content-addressable paths, you need to pass the --modulo flag:

  $ nix path-info --json /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16  | jq -r .[].narHash
  sha256:0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw

  $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16
  1ggznh07khq0hz6id09pqws3a8q9pn03ya3c03nwck1kwq8rclzs

  $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 --modulo iq6g2x4q62xp7y7493bibx0qn5w7xz67
  0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw
2019-10-21 17:47:24 +02:00
Eelco Dolstra 6024dc1d97
Support SRI hashes
SRI hashes (https://www.w3.org/TR/SRI/) combine the hash algorithm and
a base-64 hash. This allows more concise and standard hash
specifications. For example, instead of

  import <nix/fetchurl.nl> {
    url = https://nixos.org/releases/nix/nix-2.1.3/nix-2.1.3.tar.xz;
    sha256 = "5d22dad058d5c800d65a115f919da22938c50dd6ba98c5e3a183172d149840a4";
  };

you can write

  import <nix/fetchurl.nl> {
    url = https://nixos.org/releases/nix/nix-2.1.3/nix-2.1.3.tar.xz;
    hash = "sha256-XSLa0FjVyADWWhFfkZ2iKTjFDda6mMXjoYMXLRSYQKQ=";
  };

In fixed-output derivations, the outputHashAlgo is no longer mandatory
if outputHash specifies the hash (either as an SRI or in the old
"<type>:<hash>" format).

'nix hash-{file,path}' now print hashes in SRI format by default. I
also reverted them to use SHA-256 by default because that's what we're
using most of the time in Nixpkgs.

Suggested by @zimbatm.
2018-12-13 14:30:52 +01:00