add update-sym-links.sh

This script updates the "latest" symlinks for one of the /emacs-## folders and then latest rebuilds the "corner gadget" on blog pages of corwin.bru.st

update-sym-links.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+# update-sym-links - Symlink latest versions in parent folders
+#
+# Copyright 2023 Corwin Brust <corwin@bru.st>
+#
+# This program is distributed under the terms of the GNU Public
+# License version 3 or (at your option) any later version.
+#
+
+BASE=/home/dh_aw28jd/corwin-emacs
+DIRS="emacs-30 emacs-31 emacs-32"
+PKGS="-installer.exe .zip -no-deps.zip -src.zip -sha256sums.txt"
+
+FOUND=
+
+for DIR in $DIRS ; do
+    #find emacs-29/* -type d -print0 | xargs -0 stat --format '%Y :%y %n' | sort -nr | cut -d: -f2- | head -1 | cut -d / -f 2
+    LATEST=$( ls -t $BASE/$DIR | grep -v 'latest' | grep "^$DIR" | head -1 )
+
+    HTACCESS=$BASE/$DIR/.htaccess
+    echo '<FilesMatch "\.directive(\.asc)?$">
+  deny from all
+</FilesMatch>' > $HTACCESS
+    # remove AddDescription lines from .htaccess
+    cat $HTACCESS | grep -v ^AddDescription >> $HTACCESS
+
+    BL="$BASE/$DIR/$LATEST"
+    if [[ -r $BL ]] ; then
+	BN="${BASE}/${DIR}"
+	ln -sfT $BL $BN/${DIR}-latest
+	MOD=$( perl -MPOSIX=strftime -le \
+		    "print strftime('%F.%H',localtime [stat shift]->[9])" \
+		    $BN/${DIR}-latest)
+	FOUND="{\"branch\":\"$DIR\",\"latest\":\"$LATEST\",\"date\":\"$MOD\"} $FOUND"
+
+	# put an invarient link to the latest of each kind in each root
+	for FILE in $PKGS ; do
+	    LINK=$( ls -1 ${BL}/*${FILE} )
+	    NAME="${BN}/${DIR}-latest${FILE}"
+	    #echo "$DIR $FILE $LINK"
+	    if [[ -r $LINK ]] ; then
+		ln -fT $LINK $NAME
+		#ln -fT $LINK.sig $NAME.sig
+		#NOEXT=$(echo $FILE | perl -pne 's/^(?:\.|-)//; s/\..*$//g')
+		#BASENAME=$(basename $LINK)
+		echo "AddDescription \"<a href=${LATEST}>$(basename $LINK)</a>\" $(basename $NAME)\$" >>$HTACCESS
+	    else
+		rm -f $NAME
+		#rm -f $NAME.sig
+	    fi
+	done
+	echo "AddDescription \"<a href=${LATEST}/>latest: $LATEST</a>\" ${DIR}-latest\$" >>$HTACCESS
+	#echo "$DIR $LATEST"
+    else
+	echo "WARNING: No latest version found for $DIR"
+    fi
+done
+
+(TOTAL=0
+ for JSON in $FOUND ; do TOTAL=$((TOTAL+1)) ; done
+ COUNT=0
+ (echo -n "["
+  for JSON in $FOUND ; do
+      echo -n "$JSON";
+      COUNT=$((COUNT+1))
+      if [[ $COUNT -ne $TOTAL ]] ; then
+	  echo -n ", "
+      fi
+  done
+  echo "]")) | tee $BASE/emacs-latest.json
+
+(echo -n "// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-v3-or-Later
+document.emacsVersionData = "; \
+ cat $BASE/emacs-latest.json ; \
+ echo "// @license-end"
+ ) | tee $BASE/emacs-latest.js