jade
faf00ad022
This commit makes Lix include the summarized content of the value being
indexed when it is bad.
lix/lix2 » nix eval --expr '{x.y = 2;}' 'x.y.z'
error: the value being indexed in the selection path 'x.y.z' at 'x.y' should be a set but is an integer: 2
lix/lix2 » nix eval --expr '{x.y = { a = 3; };}' 'x.y.z'
error: attribute 'z' in selection path 'x.y.z' not found inside path 'x.y', whose contents are: { a = 3; }
Did you mean a?
lix/lix2 » nix eval --expr '{x.y = { a = 3; };}' 'x.y.1'
error: the expression selected by the selection path 'x.y.1' should be a list but is a set: { a = 3; }
Change-Id: I3202aba0e437e00b4c6d3ee287a2d9a7c6892dbf
1.1 KiB
1.1 KiB
| synopsis | category | cls | credits | ||
|---|---|---|---|---|---|
| Improved error messages for bad attr paths | Improvements |
|
jade |
Lix now includes much more detail when a bad attribute path is accessed at the command line:
» nix eval -f '<nixpkgs>' lixVersions.lix_2_92
error: attribute 'lix_2_92' in selection path 'lixVersions.lix_2_92' not found
Did you mean one of lix_2_90 or lix_2_91?
After:
» nix eval --impure -f '<nixpkgs>' lixVersions.lix_2_92
error: attribute 'lix_2_92' in selection path 'lixVersions.lix_2_92' not found inside path 'lixVersions', whose contents are: { __unfix__ = «lambda @ /nix/store/hfz1qqd0z8amlgn8qwich1dvkmldik36-source/lib/fixed-points.nix:
447:7»; buildLix = «thunk»; extend = «thunk»; latest = «thunk»; lix_2_90 = «thunk»; lix_2_91 = «thunk»; override = «thunk»; overrideDerivation = «thunk»; recurseForDerivations = true; stable = «thunk»; }
Did you mean one of lix_2_90 or lix_2_91?
This should avoid some unnecessary trips to the repl or to the debugger by giving some information about the value being selected on that was unexpected.