builtins type/functions: indent interactively-defined functions

This means that in case no editor is defined, "fish_indent" is now required
to fix the indentation.

Fixes #8603

CHANGELOG.rst

@@ -106,6 +106,7 @@ Interactive improvements
 - ``read --help`` and friends no longer ignore redirections. This fixes a regression in version 3.1 (:issue:`10274`).
 - Command abbreviations (those with ``--position command`` or without a ``--position``) now also expand after decorators like ``command`` (:issue:`10396`).
 - Abbreviations now expand after process separators like ``;`` and ``|``. This fixes a regression in version 3.6 (:issue:`9730`).
+- When exporting interactively defined functions (using ``type``, ``functions`` or ``funcsave``) the function body is now indented, same as in the interactive command line editor (:issue:`8603`).
 
 New or improved bindings
 ^^^^^^^^^^^^^^^^^^^^^^^^

share/functions/funced.fish

@@ -47,16 +47,12 @@ function funced --description 'Edit function definition'
 
     if test "$editor" = fish
         if functions -q -- $funcname
-            command -q fish_indent
-            and functions --no-details -- $funcname | fish_indent --no-indent | read -z init
-            or functions --no-details -- $funcname | read -z init
+            functions --no-details -- $funcname | fish_indent --only-unindent | fish_indent --no-indent | read -z init
         end
 
         set -l prompt 'printf "%s%s%s> " (set_color green) '$funcname' (set_color normal)'
         if read -p $prompt -c "$init" --shell cmd
-            command -q fish_indent
-            and echo -n $cmd | fish_indent | read -lz cmd
-            or echo -n $cmd | read -lz cmd
+            echo -n $cmd | fish_indent --only-unindent | read -lz cmd
             eval "$cmd"
         end
         if set -q _flag_save

src/builtins/functions.rs

@@ -8,6 +8,8 @@ use crate::event::{self};
 use crate::function;
 use crate::highlight::colorize;
 use crate::highlight::highlight_shell;
+use crate::parse_util::apply_indents;
+use crate::parse_util::parse_util_compute_indents;
 use crate::parser_keywords::parser_keywords_is_reserved;
 use crate::termsize::termsize_last;
 
@@ -407,6 +409,10 @@ pub fn functions(parser: &Parser, streams: &mut IoStreams, args: &mut [&wstr]) -
             def = props.annotated_definition(arg);
         }
 
+        if props.definition_file().is_none() {
+            def = apply_indents(&def, &parse_util_compute_indents(&def));
+        }
+
         if streams.out_is_terminal() {
             let mut colors = vec![];
             highlight_shell(&def, &mut colors, &parser.context(), false, None);

src/builtins/type.rs

@@ -3,6 +3,7 @@ use crate::common::str2wcstring;
 use crate::function;
 use crate::highlight::{colorize, highlight_shell};
 
+use crate::parse_util::{apply_indents, parse_util_compute_indents};
 use crate::path::{path_get_path, path_get_paths};
 
 #[derive(Default)]
@@ -128,6 +129,9 @@ pub fn r#type(parser: &Parser, streams: &mut IoStreams, argv: &mut [&wstr]) -> O
                             comment,
                             props.annotated_definition(arg)
                         ));
+                        if props.definition_file().is_none() {
+                            def = apply_indents(&def, &parse_util_compute_indents(&def));
+                        }
 
                         if streams.out_is_terminal() {
                             let mut color = vec![];