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Alternative solution to: - #12195 The other approach: - #14305 # Description Adds ~`path const`~ `path self`, a parse-time only command for getting the absolute path of the source file containing it, or any file relative to the source file. - Useful for any script or module that makes use of non nuscript files. - Removes the need for `$env.CURRENT_FILE` and `$env.FILE_PWD`. - Can be used in modules, sourced files or scripts. # Examples ```nushell # ~/.config/nushell/scripts/foo.nu const paths = { self: (path self), dir: (path self .), sibling: (path self sibling), parent_dir: (path self ..), cousin: (path self ../cousin), } export def main [] { $paths } ``` ```nushell > use foo.nu > foo ╭────────────┬────────────────────────────────────────────╮ │ self │ /home/user/.config/nushell/scripts/foo.nu │ │ dir │ /home/user/.config/nushell/scripts │ │ sibling │ /home/user/.config/nushell/scripts/sibling │ │ parent_dir │ /home/user/.config/nushell │ │ cousin │ /home/user/.config/nushell/cousin │ ╰────────────┴────────────────────────────────────────────╯ ``` Trying to run in a non-const context ```nushell > path self Error: × this command can only run during parse-time ╭─[entry #1:1:1] 1 │ path self · ─────┬──── · ╰── can't run after parse-time ╰──── help: try assigning this command's output to a const variable ``` Trying to run in the REPL i.e. not in a file ```nushell > const foo = path self Error: × Error: nu:🐚:file_not_found │ │ × File not found │ ╭─[entry #3:1:13] │ 1 │ const foo = path self │ · ─────┬──── │ · ╰── Couldn't find current file │ ╰──── │ ╭─[entry #3:1:13] 1 │ const foo = path self · ─────┬──── · ╰── Encountered error during parse-time evaluation ╰──── ``` # Comparison with #14305 ## Pros - Self contained implementation, does not require changes in the parser. - More concise usage, especially with parent directories. --------- Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com> |
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This crate contains the majority of our commands
We allow ourselves to move some of the commands in nu-command to nu-cmd-* crates as needed.
Internal Nushell crate
This crate implements components of Nushell and is not designed to support plugin authors or other users directly.