This was overly smart and tried to not show you e.g. global variables
unless you were setting without scope or explicitly global.
That is annoying when you do
`set -g fish_col<TAB>`
and don't get colors because they're universal, but you could
overwrite them.
We *could* elide e.g. local variables if we're setting a global, but I
can see someone wanting to set a universal variable on basis of a
global ("save this"), so I would rather not try to find the very
specific cases where this works.
If I type
$ echo $SOME_VARIABLE_WIHT_A_TYPO
$ set -S SOME_VARIABLE_WIHT
and press tab, I'm always extremely surprised that this completes to
$ set -S fish_history
which is because $history[1] contains the typo'd variable name. I don't
think anyone intends to filter by that last 3-4 history items, so let's
remove this pitfall.
Note that I usually hit this scenario with undefined variables, not necessarily
typos.. "set -S" is usually redundant but it's still quite nice in this case,
to rule out any weird empty strings/empty lists.
Their names are not perfect, so let's keep them as internal functions,
until we figure out how/if we want to expose this.
This reverts 0445126c2 (Undunder __fish_is_nth_token, 2021-06-29) (but I
did it without "git revert").
Closes#8008
Cursory experiments reveal that there are only three color options where
the background color is not ignored (though I didn't check all of them).
For these three options, the foreground color is ignored. Similar for
bold/italics/underline.
Teach set completions to only show the colors that won't be ignored.
Unrelated observation: we write
-a '--background=(set_color --print-colors)'
instead of
-l background -a '(set_color --print-colors)'
because we want all colors to show straight away (there are no other
meaningful arguments).
4b018a760 (set completions: add more special variables, fix colors, 2021-12-13)
changed a global variable to a local, which is no longer visible to this
function. Fix this, so "set LANG <TAB>" works again.
* add --bold, --italics, all of them,
* and we add them as arguments so that they are do not
render like long options, they are just self-descriptive
literal strings in this context.
* solve an unneccessary global var.
Fixes#8518
We keep __fish_is_nth_token for compatibility and edit the
implementations of __fish_is_nth_token, __fish_is_first_token and
__fish_is_token_n to use fish_is_nth_token
This was intended to stop showing the user "unimportant" variables,
but it just didn't complete them entirely, even if the current token
starts with a dunder (or `fish` of all things!).
Because completions sort `_` last, let's just complete these always
and let the user filter them.
Add missing options:
--path causes the specified variable to be treated as a path variable, meaning it will automatically be split on colons, and joined using colons when quoted (echo "$PATH") or exported.
--unpath causes the specified variable to not be treated as a path variable. Variables with a name ending in "PATH" are automatically path variables, so this can be used to treat such a variable normally.
[ci skip]
On `set fish_color_cwd <TAB>`, a bunch of named colors are
shown in the pager. Each and every one has a description of "Color".
These are all very obviously colors, and none are not colors,
the description does not tell us anything specific about the item.
Descriptions in situations like this are actually a hinderance
because of the way they cause less to fit into the pager. Remove it
Now the description includes the variable scope, `set [-e] -[Ugl]`
completions only provide variables matching that scope, and completions
that shouldn't be modified are hidden from the user. Completions that
are often modified but rarely unset (`fish_*` variables) are omitted
from `set -e` completions.
A new helper function `__fish_seen_argument` has been added that makes
it easy to only provied completions for a specific flag.
