Bash-completion is written with FHS in mind where completion scripts
all get added to /usr/share/bash-completion/completions and are picked
up by the dynamic completion loader from there---whether they are
part of bash-completion or installed by another package.

On Guix systems, we want not only to search within bash-completion's own
directory, but also in the user's profile and guix home profile, as well
as in the system profile.
This is what this patch does.


--- a/bash_completion
+++ b/bash_completion
@@ -2173,7 +2173,15 @@ complete -F _minimal ''
 
 __load_completion()
 {
-    local -a dirs=(${BASH_COMPLETION_USER_DIR:-${XDG_DATA_HOME:-$HOME/.local/share}/bash-completion}/completions)
+    local -a dirs=(
+        ${BASH_COMPLETION_USER_DIR:-${XDG_DATA_HOME:-$HOME/.local/share}/bash-completion}/completions
+        "$HOME/.guix-profile/share/bash-completion/completions"
+        "$HOME/.guix-profile/etc/bash_completion.d"
+        "$HOME/.guix-home/profile/share/bash-completion/completions"
+        "$HOME/.guix-home/profile/etc/bash_completion.d"
+        "/run/current-system/profile/share/bash-completion/completions"
+        "/run/current-system/profile/etc/bash_completion.d" )
+
     local ifs=$IFS IFS=: dir cmd="${1##*/}" compfile
     [[ -n $cmd ]] || return 1
     for dir in ${XDG_DATA_DIRS:-/usr/local/share:/usr/share}; do
         dirs+=( $dir/bash-completion/completions )
s/yas?id=e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/etc/snippets/yas'>
<input type='hidden' name='id' value='e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464'>root</a>/<a href='/guix/log/etc?id=e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464'>etc</a>/<a href='/guix/log/etc/snippets?id=e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464'>snippets</a>/<a href='/guix/log/etc/snippets/yas?id=e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464'>yas</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/etc/snippets/yas?id=e2f20d9309b4358c609b8d45b1ec2bd8fe3e6464&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-02-19 21:13:23 -0500'>2023-02-19</span></td><td><a href='/guix/commit/etc/snippets/yas?id=633ead4afc78cfe65d9c8e629a4af4a80d969eb4'>etc: Add a news entry snippet.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/yas/scheme-mode/guix-news-entry: New file.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-11-28 23:34:15 +0100'>2022-11-28</span></td><td><a href='/guix/commit/etc/snippets/yas?id=fcb59fe24afc064b87b3abaf91140d015b4eb889'>snippets: yas: Add snippets for vc.el</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/yas/log-edit-mode/guix-vc-commit-message-add-package:
* etc/snippets/yas/log-edit-mode/guix-vc-commit-message-remove-package:
* etc/snippets/yas/log-edit-mode/guix-vc-commit-message-rename-package:
* etc/snippets/yas/log-edit-mode/guix-vc-commit-message-update-package:
* etc/snippets/yas/log-edit-mode/guix-vc-commit-message-use-https-home-page:
New file

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Morgan Smith</td></tr>
<tr><td><span title='2022-08-30 11:50:15 +0200'>2022-08-30</span></td><td><a href='/guix/commit/etc/snippets/yas?id=47c11772dfe840a536ed7ec438fe832878f51054'>etc: Update yasnippet build system list.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/yas/scheme-mode/guix-package (build-system): Add
chicken-build-system, minetest-build-system, rebar-build-system
and renpy-build-system.

Signed-off-by: Liliana Marie Prikler &lt;liliana.prikler@gmail.com&gt;
</span></span></td><td>Nicolas Graves</td></tr>
<tr><td><span title='2022-08-30 11:50:14 +0200'>2022-08-30</span></td><td><a href='/guix/commit/etc/snippets/yas?id=c4acaf412064568a546034871a9e0d3888aa7937'>etc: Add tempel snippets.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/tempel/scheme-mode: New file.
* etc/snippets/tempel/text-mode: New file.
* etc/snippets/scheme-mode: Moved from here...
* etc/snippets/yas/scheme-mode: ... to here.
* etc/snippets/text-mode: Moved from here...
* etc/snippets/yas/text-mode: ... to here.
* doc/contributing.texi ("The Perfect Setup"): Adjust yasnippet setup
accordingly.  Add tempel setup.

Signed-off-by: Liliana Marie Prikler &lt;liliana.prikler@gmail.com&gt;
</span></span></td><td>Nicolas Graves</td></tr>