Nix (language): Difference between revisions
imported>Colemickens add helpful bit about paths and interpolation |
imported>Colemickens mNo edit summary |
||
| Line 508: | Line 508: | ||
Sometimes you need to interpolate the value of a Nix variable into the path for an import, however these will not work: | Sometimes you need to interpolate the value of a Nix variable into the path for an import, however these will not work: | ||
* <code>./desktop-${desktop}.nix</code> | * <code>./desktop-${desktop}.nix</code> (invalid curly, can't interpolate outside of a string in this location) | ||
* <code>"./desktop-${desktop}.nix"</code> | * <code>"./desktop-${desktop}.nix"</code> (nix paths must be absolute) | ||
* <code>./. + "./desktop-${desktop}.nix"</code> | * <code>./. + "desktop-${desktop}.nix"</code> (missing slash at the start of the string part) | ||
* <code>./. + "./desktop-${desktop}.nix"</code> (can't have the dot in front of that same slash) | |||
Instead, use this construction: | Instead, use this construction: | ||
| Line 533: | Line 534: | ||
} | } | ||
</syntaxHighlight> | </syntaxHighlight> | ||
Note that this requires <code>./.</code> to refer to the current directory, but also importantly requires the leading slash on the quoted-string-path part. | |||
=== Writing update scripts / Referencing a relative path as string === | === Writing update scripts / Referencing a relative path as string === | ||