From dc6d92ac93cedd65f6c99daa530b69f43f6039ec Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Sun, 22 May 2022 02:00:00 +0200
Subject: bash completion: Fix & unify option parsing.
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We now correctly recognise ‘guix -Abcdef’ as equivalent to ‘guix -f’.

* etc/completion/bash/guix (_guix_is_short_option, guix_is_long_option):
New functions.
(_guix_is_dash_f, _guix_is_dash_l, _guix_is_dash_L, _guix_is_dash_m)
(_guix_is_dash_C, _guix_is_dash_p): Use them.
---
 etc/completion/bash/guix | 61 ++++++++++++++++++++++++------------------------
 1 file changed, 31 insertions(+), 30 deletions(-)

(limited to 'etc')

diff --git a/etc/completion/bash/guix b/etc/completion/bash/guix
index 6b1b70aac1..7b1f639371 100644
--- a/etc/completion/bash/guix
+++ b/etc/completion/bash/guix
@@ -117,58 +117,59 @@ _guix_is_removing ()
     $result
 }
 
+_guix_is_short_option ()
+{
+    case "${COMP_WORDS[$COMP_CWORD - 1]}" in
+	--*)	false;;
+	-*$1)	true ;;
+	*)	false ;;
+    esac
+}
+
+_guix_is_long_option ()
+{
+    # Don't handle (non-GNU?) ‘--long-option VALUE’, as Guix doesn't either.
+    case "${COMP_WORDS[$COMP_CWORD]}" in
+	--$1=*)	true ;;
+	*)	false ;;
+    esac
+}
+
 _guix_is_dash_f ()
 {
-    [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-f" ] \
-	|| { case "${COMP_WORDS[$COMP_CWORD]}" in
-		 --file=*|--install-from-file=*) true;;
-		 *)                              false;;
-	     esac }
+    _guix_is_short_option f ||
+    _guix_is_long_option file ||
+    _guix_is_long_option install-from-file
 }
 
 _guix_is_dash_l ()
 {
-    [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-l" ] \
-	|| { case "${COMP_WORDS[$COMP_CWORD]}" in
-		 --load=*) true;;
-		 *)        false;;
-	     esac }
+    _guix_is_short_option l ||
+    _guix_is_long_option load
 }
 
 _guix_is_dash_L ()
 {
-    [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-L" ] \
-	|| { case "${COMP_WORDS[$COMP_CWORD]}" in
-		 --load-path=*) true;;
-		 *)             false;;
-	     esac }
+    _guix_is_short_option L ||
+    _guix_is_long_option load-path
 }
 
 _guix_is_dash_m ()
 {
-    [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-m" ] \
-	|| { case "${COMP_WORDS[$COMP_CWORD]}" in
-		 --manifest=*) true;;
-		 *)            false;;
-	     esac }
+    _guix_is_short_option m ||
+    _guix_is_long_option manifest
 }
 
 _guix_is_dash_C ()
 {
-    [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-C" ] \
-	|| { case "${COMP_WORDS[$COMP_CWORD]}" in
-		 --channels=*)  true;;
-		 *)             false;;
-	     esac }
+    _guix_is_short_option C ||
+    _guix_is_long_option channels
 }
 
 _guix_is_dash_p ()
 {
-    [ "${COMP_WORDS[$COMP_CWORD - 1]}" = "-p" ] \
-	|| { case "${COMP_WORDS[$COMP_CWORD]}" in
-		 --profile=*)   true;;
-		 *)             false;;
-	     esac }
+    _guix_is_short_option p ||
+    _guix_is_long_option profile
 }
 
 _guix_complete_file ()
-- 
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