Add script to update vlc-nightly

vlc/nightly/update.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/bash
+
+set -e
+shopt -s nocasematch
+source '/usr/share/makepkg/util.sh'
+[[ -t 2 ]] && colorize
+
+msg 'Query list of nightly sources'
+srcurl='http://nightlies.videolan.org/build/source/'
+srclist=$(curl "$srcurl")
+
+msg 'Find latest nightly'
+fileregex='.*(<a\ +href=\")([^\"]+)(\">)'
+if ! [[ $srclist =~ $fileregex ]]; then
+    echo 'No source found'
+    exit -1
+fi
+srcfile=${BASH_REMATCH[2]}
+msg2 "source file: $srcfile"
+
+msg 'Split file name of latest nightly into components used in the PKGBUILD'
+compregex='vlc-(.*)-(.*)-(.*)-git.tar.xz'
+if ! [[ $srcfile =~ $compregex ]]; then
+    echo 'Unable to split source file into components used in PKGBUILD'
+    exit -1
+fi
+version=${BASH_REMATCH[1]}
+date=${BASH_REMATCH[2]}
+strange_number=${BASH_REMATCH[3]}
+msg2 "version:        $version"
+msg2 "date:           $date"
+msg2 "strange number: $strange_number"
+
+msg 'Update PKGBUILD'
+mv 'PKGBUILD' 'PKGBUILD.bak'
+awk \
+    -v pkgver="pkgver=${version}v${date}" \
+    -v _pkgver="_pkgver=${version}" \
+    -v _snapshot_="_snapshot_=${date}" \
+    -v _snapver_="_snapver_=${strange_number}" \
+'   /^[[:blank:]]*_pkgver=.*$/ {
+        print _pkgver
+        next
+    }
+    /^[[:blank:]]*pkgver=.*$/ {
+        print pkgver
+        next
+    }
+    /^[[:blank:]]*_snapshot_=.*$/ {
+        print _snapshot_
+        next
+    }
+    /^[[:blank:]]*_snapver_=.*$/ {
+        print _snapver_
+        next
+    }
+    1
+    END {
+
+    }
+' \
+    'PKGBUILD.bak' > 'PKGBUILD'