test(deprecated): make link update work in unconfigured tree

No need to require running `configure` for this. Useful in general, but
in particular with the pre-commit check, CI and otherwise.

Author: scop

.pre-commit-config.yaml

@@ -37,8 +37,8 @@ repos:
 
       - id: update-test-deprecated-links
         name: update-test-deprecated-links
-        language: system
-        entry: make -C test/deprecated/completions update
+        language: script
+        entry: test/deprecated/update-deprecated-links
         files: ^completions/_
         pass_filenames: false
 

test/deprecated/Makefile.am

@@ -1 +1,7 @@
 SUBDIRS = completions
+
+EXTRA_DIST = \
+	update-deprecated-links
+
+update:
+	./update-deprecated-links

test/deprecated/completions/Makefile.am

@@ -33,15 +33,3 @@ EXTRA_DIST = \
 	write \
 	xm \
 	yum
-
-update:
-	for f in *; do \
-		case $$f in \
-			Makefile*|README.md) ;; \
-			*) git rm -f $$f ;; \
-		esac \
-	done
-	for f in ../../../completions/_*; do \
-		ln -sf $$f $${f##*/_}; \
-		git add $${f##*/_}; \
-	done

test/deprecated/update-deprecated-links

@@ -0,0 +1,14 @@
+#!/bin/bash
+set -euo pipefail
+
+cd "$(dirname "$0")/completions"
+for f in *; do
+    case $f in
+        Makefile* | README.md) ;;
+        *) git rm -f $f ;;
+    esac
+done
+for f in ../../../completions/_*; do
+    ln -sf $f ${f##*/_}
+    git add --verbose ${f##*/_}
+done