update README

README.md

@@ -1,5 +1,6 @@
 # debfetcher
-debfetcher automates fetching  and installing certain .deb packages from apt repos.
+debfetcher enables fetching, installing and updating certain .deb packages from apt repos for non-Debian
+distributions.
 
 ## Features
  - apt signature and package checksum verification
@@ -11,7 +12,7 @@ Often they are not available in the repos of others distros. Even if they are, s
 
 Examples for such packages are: Brave, Signal-Desktop, Element-Desktop, Spotify etc.
 
-debfetcher can fetch such packages from the official apt repos.
+debfetcher can fetch such packages from the official apt repos and keep them up to date.
 
 The binaries in the .deb actually work on other distributions (often)
 
@@ -64,7 +65,7 @@ A template contains the repo URI, package name etc and specifies where to extrac
 ```
 
 ## User-level installation
-If you don't need/want a system-wide installation , debfetcher can be used to install a package in your local user profile. Therefore, debfetcher can be used without polluting your /.
+If you don't need/want a system-wide installation of a package, debfetcher can be used to install a package in your local user profile. Therefore, debfetcher can be used without polluting your /.
 
 Refer to `debfetcher.user.conf.sample` to change the appropriate settings.
 
@@ -73,6 +74,8 @@ Execute
 DEBFETCHER_CONFIG="/path/to/debfetcher.user.conf" ./debfetcher.sh get signal
 ```
 
+Note: The config directories don't change.
+
 ## Usage
 ### Install a package
 ```

debfetcher.sh

@@ -78,14 +78,40 @@ print_usage()
 
 verify_sig()
 {
+	set +e
 	gpg --no-default-keyring --keyring "$1" --quiet --verify 2> "${CACHE_DIR}/last_gnupg_verify_result"
 	if [ $? -ne 0 ] ; then
-		fail "Signature check failed"
+		fail "Signature check failed - See "${CACHE_DIR}/last_gnupg_verify_result""
 	fi
+	set -e
 }
 
 
 
+# default presets for templates
+remove()
+{
+    rm -rf -- "${DEBFETCHER_INSTALL_DESTDIR}/${THIS_BASEDIR}"
+}
+
+pre_install()
+{
+    CURRENT_DIR="${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}"
+    if [ -d "${CURRENT_DIR}" ] ; then
+		mv -- "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}" "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}_${TS}"
+    fi
+}
+
+post_install()
+{
+    if [ ${KEEP_OLD} -eq 0 ] ; then
+        rm -rf -- "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}_${TS}"
+    fi
+}
+
+
+
+
 debfetcher_install()
 {
 	TEMPLATE_NAME=$(basename "$1")

packages/brave.debfetcher

@@ -7,22 +7,6 @@ PACKAGE="brave-browser"
 TS=$(date +%s)
 THIS_BASEDIR="/opt/brave.com"
 
-remove()
-{
-    rm -rf -- "${DEBFETCHER_INSTALL_DESTDIR}/${THIS_BASEDIR}"
-}
-
-pre_install()
-{
-
-   CURRENT_DIR="${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}"
-
-   if [ -d "${CURRENT_DIR}" ] ; then
-       mv -- "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}" "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}_${TS}"
-   fi
-
-}
-
 install()
 {
     cp -a --parents --  opt/brave.com "${DEBFETCHER_INSTALL_DESTDIR}"
@@ -31,14 +15,3 @@ install()
 
 
 }
-
-post_install()
-{
-    if [ ${KEEP_OLD} -eq 0 ] ; then
-        rm -rf -- "${DEBFETCHER_INSTALL_DESTDIR}/opt/brave.com_${TS}"
-    fi
-
-    sourcepath=$(realpath "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}/brave/brave-browser")
-    ln -sf "${sourcepath}" "${DEBFETCHER_BIN_SYMLINK_DIR}/"
-    sed -e "s;Exec=/;Exec=${DEBFETCHER_BIN_SYMLINK_DIR};" -i "${DEBFETCHER_INSTALL_DESTDIR}"/usr/share/applications/brave-browser.desktop
-}

packages/signal.debfetcher

@@ -7,21 +7,6 @@ PACKAGE="signal-desktop"
 TS=$(date +%s)
 THIS_BASEDIR="/opt/Signal"
 
-remove()
-{
-    rm -rf -- "${DEBFETCHER_INSTALL_DESTDIR}/${THIS_BASEDIR}"
-}
-
-pre_install()
-{
-
-    CURRENT_DIR="${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}"
-
-    if [ -d "${CURRENT_DIR}" ] ; then
-      mv -- "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}" "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}_${TS}"
-    fi
-}
-
 install()
 {
     #Inspired by Gentoo's ebuild
@@ -34,11 +19,3 @@ install()
     
     ln -sf ${DEBFETCHER_INSTALL_DESTDIR}/opt/Signal/signal-desktop "${DEBFETCHER_BIN_SYMLINK_DIR}" 
 }
-
-
-post_install()
-{
-    if [ ${KEEP_OLD} -eq 0 ] ; then
-        rm -rf -- "${DEBFETCHER_INSTALL_DESTDIR}${THIS_BASEDIR}_${TS}"
-    fi
-}

packages/spotify.debfetcher

@@ -0,0 +1,17 @@
+APTURL="http://repository.spotify.com"
+DISTRO="stable"
+REPO="non-free"
+PUBKEY="${PUBKEY_PATH}/spotify-keyring-7A3A762FAFD4A51F.gpg"
+PACKAGE="spotify-client"
+
+TS=$(date +%s)
+THIS_BASEDIR="/opt/spotify"
+
+install()
+{
+    mkdir -p ${DEBFETCHER_INSTALL_DESTDIR}/${THIS_BASEDIR}
+    patchelf --replace-needed libcurl-gnutls.so.4 libcurl.so.4 usr/share/spotify/spotify
+    cp -a usr/share/spotify/* ${DEBFETCHER_INSTALL_DESTDIR}/${THIS_BASEDIR}
+
+    ln -sf ${DEBFETCHER_INSTALL_DESTDIR}/opt/spotify/spotify "${DEBFETCHER_BIN_SYMLINK_DIR}"
+}