* Fix --headerless option of to-csv and to-tsv
Before to-csv --headerless split the "headerfull" output on lines,
skipped the first, and then concatenated them together. That meant
that all remaining output would be put on the same line, without
any delimiter, making it unusable. Now we replace the range of the
first line with the empty string, maintaining the rest of the
output unchanged.
* Remove extra space in indentation of to_delimited_data
* Add --separator <string> argument to to-csv
This functionaliy has been present before, but wasn't exposed
to the command.
* Refactor InputStream and affected commands.
First, making `values` private and leaning on the `Stream` implementation makes
consumes of `InputStream` less likely to have to change in the future, if we
change what an `InputStream` is internally.
Second, we're dropping `Option<InputStream>` as the input to pipelines,
internals, and externals. Instead, `InputStream.is_empty` can be used to check
for "emptiness". Empty streams are typically only ever used as the first input
to a pipeline.
* Add run_external internal command.
We want to push external commands closer to internal commands, eventually
eliminating the concept of "external" completely. This means we can consolidate
a couple of things:
- Variable evaluation (for example, `$it`, `$nu`, alias vars)
- Behaviour of whole stream vs per-item external execution
It should also make it easier for us to start introducing argument signatures
for external commands,
* Update run_external.rs
* Update run_external.rs
* Update run_external.rs
* Update run_external.rs
Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
* Better message error
* Use custom canonicalize in FileStructure build
* Better glob error in ls
* Use custom canonicalize, remove some duplicate code in cd.
* Enable recursive copying with patterns.
* Change test to fit new error message
* Test recursive with glob pattern
* Show that not matches were found in cp
* Fix typo in message error
* Change old canonicalize usage, follow newest changes
* Expand n dots early where tilde was also expanded.
* Remove normalize, not needed.
New function absolutize, doesn't follow links neither checks existence.
Renamed canonicalize_existing to canonicalize, works as expected.
* Remove normalize usages, change canonicalize.
* Treat strings as paths
* Making Commands match what UntaggedValue needs
* WIP
* WIP
* WIP
* Moved to expressions for conditions
* Add 'each' command to use command blocks
* More cleanup
* Add test for 'each'
* Instead use an expression block
* New 'path' module under nu-cli.
Added normalize and canonicalize method.
Added some unit tests.
* Replace old usages of normalize and canonicalize.
* Fix reading symlinks and existence logic.
* Better explained
