Use a variable for fallback mcversion

README.md

@@ -23,7 +23,7 @@ $ installJRMC --help
 --compat
     Build/install MC without minimum library specifiers
 --mcversion VERSION
-    Build or install a specific MC version, ex. "29.0.18"
+    Build or install a specific MC version, ex. "30.0.17"
 --outputdir PATH
     Generate rpmbuild output in this PATH (Default: ./output)
 --restorefile RESTOREFILE
@@ -110,9 +110,9 @@ Multiple services (but not `--service-types`) can be installed at one time using
 
     Install MC from the repository and start/enable `jriver-mediacenter.service` as a user service.
 
-* `installJRMC --install local --compat --restorefile /path/to/license.mjr --mcversion 29.0.18`
+* `installJRMC --install local --compat --restorefile /path/to/license.mjr --mcversion 30.0.17`
 
-    Build and install an MC 29.0.18 comptability RPM locally and activate it using the `/path/to/license.mjr`
+    Build and install an MC 30.0.17 comptability RPM locally and activate it using the `/path/to/license.mjr`
 
 * `installJRMC --createrepo --createrepo-webroot /srv/jriver/repo --createrepo-user www-user`
 
@@ -138,4 +138,4 @@ Multiple services (but not `--service-types`) can be installed at one time using
 
 Did you find `installJRMC` useful? [Buy me a coffee!](https://paypal.me/bryanroessler?locale.x=en_US)
 
-Did you find a bug? Let me know on [Interact!](https://yabb.jriver.com/interact/index.php/topic,123648.0.html)
+Did you find a bug? Let me know on [Interact!](https://yabb.jriver.com/interact/index.php/topic,134152.0.html)

installJRMC

@@ -7,18 +7,22 @@
 # https://www.apache.org/licenses/LICENSE-2.0
 #
 # TODO (v2)
-#   1. Raspberry Pi OS support
-#   2. Interactive installation (ncurses?)
-#   3. Additional containerization (createrepo and rpmbuild)
-#   4. Tests
+#   1. Interactive installation (ncurses?)
+#   2. Additional containerization (createrepo and rpmbuild)
+#   3. Tests
 #
 # BUGS
 #   1. No createrepo on Mint
 
 shopt -s extglob
 
-declare -g SCRIPTVERSION="1.0b17"
+declare -g SCRIPTVERSION="1.0-rc1"
 declare -g OUTPUTDIR="$PWD/output"
+
+declare -g BOARDURL="https://yabb.jriver.com/interact/index.php/board,76.0.html" # MC30 (Buster)
+declare -g DEBIANBASE="buster"
+declare -g MCVERSION_HARDCODE="30.0.17" # Hardcoded fallback
+
 declare -g CREATEREPO_WEBROOT="/var/www/jriver"
 declare -g USER="${SUDO_USER:-$USER}"
 declare -g HOME; HOME=$(getent passwd "$USER" | cut -d: -f6)
@@ -30,7 +34,7 @@ printHelp() {
 		USAGE:
 		    installJRMC [[OPTION] [VALUE]]...
 
-		    If no options (besides -d) are provided, the script will default to '--install repo'.
+		    If no options (excluding -d) are provided, the script will default to '--install repo'.
 
 		OPTIONS
 		    --install, -i repo|local
@@ -42,7 +46,7 @@ printHelp() {
 		    --compat
 		        Build/install MC locally without minimum library specifiers
 		    --mcversion VERSION
-		        Specify the MC version, ex. "29.0.58" (Default: latest)
+		        Specify the MC version, ex. "30.0.17" (Default: latest version)
 		    --outputdir PATH
 		        Generate rpmbuild output in this directory (Default: ./output)
 		    --restorefile RESTOREFILE
@@ -159,7 +163,7 @@ parseInput() {
                     shift && OUTPUTDIR="$1"
                     ;;
                 --mcversion)
-                    shift && MCVERSION="$1"
+                    shift && declare -g MCVERSION_INPUT="$1"
                     ;;
                 --restorefile)
                     shift && RESTOREFILE="$1"
@@ -234,8 +238,7 @@ parseInput() {
 init() {
     debug "Running: ${FUNCNAME[0]}"
 
-    declare -g ID
-    declare rpm_mgr
+    declare -g ID RPM_MGR
 
     if [[ -e "/etc/os-release" ]]; then
         source "/etc/os-release"
@@ -243,7 +246,7 @@ init() {
         err "/etc/os-release not found"
         err "Your OS is unsupported"
         printHelp
-		exit 1
+        exit 1
     fi
 
     debug "Detected host platform: $ID $VERSION_ID"
@@ -252,11 +255,11 @@ init() {
     case "$ID" in
         arch|debian)
             ;;
-		centos|fedora)
-		    if hash dnf &>/dev/null; then
-                rpm_mgr="dnf"
+        centos|fedora)
+            if hash dnf &>/dev/null; then
+                RPM_MGR="dnf"
             elif hash yum &>/dev/null; then
-                rpm_mgr="yum"
+                RPM_MGR="yum"
             fi
             ;;
         rhel)
@@ -272,10 +275,10 @@ init() {
             echo "Autodetecting distro, this may be unreliable and --compat may also be required"
             if hash dnf &>/dev/null; then
                 ID="fedora"
-                rpm_mgr="dnf"
+                RPM_MGR="dnf"
             elif hash yum &>/dev/null; then
                 ID="centos"
-                rpm_mgr="yum"
+                RPM_MGR="yum"
                 COMPAT_SWITCH=1
             elif hash apt &>/dev/null; then
                 ID="ubuntu"
@@ -292,10 +295,10 @@ init() {
     # Set distro-specific functions
     case "$ID" in
         fedora|centos)
-            pkg_install(){ sudo "$rpm_mgr" install -y "$@"; }
+            pkg_install(){ sudo "$RPM_MGR" install -y "$@"; }
             pkg_install_local() { installMCRPM; }
-            pkg_remove(){ sudo "$rpm_mgr" remove -y "$@"; }
-            pkg_update(){ sudo "$rpm_mgr" makecache; }
+            pkg_remove(){ sudo "$RPM_MGR" remove -y "$@"; }
+            pkg_update(){ sudo "$RPM_MGR" makecache; }
             pkg_query(){ rpm -q "$@"; }
             firewall_cmd(){ sudo firewall-cmd "$@"; }
             ;;
@@ -329,51 +332,55 @@ init() {
 
 #######################################
 # Uses several methods to determine the latest JRiver MC version
-# TODO but how to determine build distro `$BASE=buster`?
+# TODO but how to determine build distro `$DEBIANBASE=buster`?
 #######################################
-getVersion() {
+setMCVersion() {
     debug "Running: ${FUNCNAME[0]}"
 
-    declare -g MCVERSION VERSION_SOURCE MVERSION MCPKG MCRPM BASE="buster" #BASE_NEXT="bullseye"
-    declare boardurl="https://yabb.jriver.com/interact/index.php/board,74.0.html" # MC29 (Buster)
+    declare -g MCVERSION MCVERSION_SOURCE MVERSION MCPKG MCRPM 
+    declare cnt
 
     # User input
-    if [[ -v MCVERSION && "$MCVERSION" =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
-        VERSION_SOURCE="user input"
+    if [[ -v MCVERSION_INPUT ]]; then
+        if ! [[ "$MCVERSION_INPUT" =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
+            err "Incorrect --mcversion format provided"
+            printHelp && exit 1
+        fi
+        MCVERSION="$MCVERSION_INPUT"
+        MCVERSION_SOURCE="user input"
     # Containerized package manager
     elif installPackage --silent buildah &&
-    cnt=$(buildah from --quiet debian:$BASE) &>/dev/null &&
+    cnt=$(buildah from --quiet debian:$DEBIANBASE) &>/dev/null &&
     buildah run "$cnt" -- bash -c \
-        "echo 'deb [trusted=no arch=amd64,i386,armhf,arm64] http://dist.jriver.com/latest/mediacenter/ $BASE main' > /etc/apt/sources.list 2>&1" &>/dev/null &&
+        "echo 'deb [trusted=no arch=amd64,i386,armhf,arm64] http://dist.jriver.com/latest/mediacenter/ $DEBIANBASE main' > /etc/apt/sources.list 2>&1" &>/dev/null &&
     buildah run "$cnt" -- bash  -c \
         "apt update --allow-insecure-repositories &>/dev/null" &>/dev/null &&
     MCVERSION=$(buildah run "$cnt" -- apt-cache policy mediacenter?? | grep Candidate | awk '{print $2}' | sort -V | tail -n1) &>/dev/null &&
-    [[ "$MCVERSION" =~ ([0-9]+.[0-9]+.[0-9]+) ]] &&
-    VERSION_SOURCE="containerized package manager"; then
+    [[ "$MCVERSION" =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
+        MCVERSION_SOURCE="containerized package manager"
         buildah rm "$cnt" &>/dev/null
     # Webscrape
-    elif installPackage wget && MCVERSION=$(wget -qO- "$boardurl" | grep -o "[0-9][0-9]\.[0-9]\.[0-9]\+" | head -n 1) &&
+    elif installPackage wget && MCVERSION=$(wget -qO- "$BOARDURL" | grep -o "[0-9][0-9]\.[0-9]\.[0-9]\+" | head -n 1) &&
     [[ "$MCVERSION" =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
-        VERSION_SOURCE="webscrape"
+        MCVERSION_SOURCE="webscrape"
     # Hardcoded
     else
-        MCVERSION="29.0.58"
-        VERSION_SOURCE="hardcoded version"
-        err "Warning! Using hardcoded version number"
+        MCVERSION="$MCVERSION_HARDCODE"
+        MCVERSION_SOURCE="hardcoded version"
+        err "Warning! Using hardcoded version number."
     fi
     
     MVERSION="${MCVERSION%%.*}"
     MCPKG="mediacenter$MVERSION"
     MCRPM="$OUTPUTDIR/RPMS/x86_64/mediacenter$MVERSION-$MCVERSION.x86_64.rpm"
 
-    if [[ "$VERSION_SOURCE" == "user input" ]]; then
+    if [[ "$MCVERSION_SOURCE" == "user input" ]]; then
         # Append explicit package version when user provides --mcversion
         [[ "$ID" =~ ^(fedora|centos|suse)$ ]] && MCPKG+="-$MCVERSION"
         [[ "$ID" =~ ^(debian|ubuntu)$ ]] && MCPKG+="=$MCVERSION"
-    else
-        echo "To override, use --mcversion"
     fi
-    echo "Using MC version $MCVERSION determined by $VERSION_SOURCE"
+    echo "Using MC version $MCVERSION determined by $MCVERSION_SOURCE."
+    [[ "$MCVERSION_SOURCE" == "user input" ]] || echo "To override, use --mcversion."
     debug "MVERSION: $MVERSION, MCVERSION: $MCVERSION, MCPKG: $MCPKG, MCRPM: $MCRPM"
 }
 
@@ -385,7 +392,7 @@ getVersion() {
 # Options:
 #   --skip-check-installed: Do not check if package is already installed
 #   --nogpgcheck: Disable GPG checks for RPM based distros
-#   --allow-downgrades: Useful for installing compatability versions on DEB based distros
+#   --allow-downgrades: Useful for installing specific MC versions
 #   --silent, -s: Do not report errors (useful if package is not strictly required and errors are noisy)
 #######################################
 installPackage() {
@@ -402,8 +409,11 @@ installPackage() {
                     skip_check_installed=1
                     ;;
                 --allow-downgrades)
-                    [[ "$ID" =~ ^(debian|ubuntu)$ ]] && 
+                    if [[ "$ID" =~ ^(debian|ubuntu)$ ]]; then
                         install_flags+=(--allow-downgrades)
+                    elif [[ "$ID" =~ ^(fedora|centos)$ ]]; then
+                        install_flags+=(--allowerasing)
+                    fi
                     ;;
                 --nogpgcheck)
                     if [[ "$ID" =~ ^(fedora|centos)$ ]]; then
@@ -483,7 +493,7 @@ installMCFromRepo() {
             sudo rm -rf "$repo_dir"/mediacenter*.list
             installPackage wget
             sudo bash -c "cat <<-EOF > $repo_dir/jriver.list
-				deb [trusted=yes arch=amd64,i386,armhf,arm64] http://dist.jriver.com/latest/mediacenter/ $BASE main
+				deb [trusted=yes arch=amd64,i386,armhf,arm64] http://dist.jriver.com/latest/mediacenter/ $DEBIANBASE main
 			EOF"
             wget -qO- "http://dist.jriver.com/mediacenter@jriver.com.gpg.key" | sudo tee /etc/apt/trusted.gpg.d/jriver.asc
             ;;
@@ -494,7 +504,6 @@ installMCFromRepo() {
             ;;
     esac
 
-    # Update package list
     declare pkg_update_cmd="pkg_update"
     debug "$pkg_update_cmd" || pkg_update_cmd+=" &>/dev/null"
     if ! eval "$pkg_update_cmd"; then
@@ -502,7 +511,7 @@ installMCFromRepo() {
         return 1
     fi
 
-    declare pkg_install_cmd="installPackage --skip-check-installed --nogpgcheck $MCPKG"
+    declare pkg_install_cmd="installPackage --skip-check-installed --allow-downgrades --nogpgcheck $MCPKG"
     debug "$pkg_install_cmd" || pkg_install_cmd+=" &>/dev/null"
     if ! eval "$pkg_install_cmd"; then
         err "Package install failed!"
@@ -759,7 +768,7 @@ installMCDEB() {
 #######################################
 installMCRPM() {
     debug "Running: ${FUNCNAME[0]}"
-    installPackage --skip-check-installed --nogpgcheck "$MCRPM"
+    installPackage --skip-check-installed --nogpgcheck --allow-downgrades "$MCRPM"
 }
 
 
@@ -1273,7 +1282,7 @@ service_jriver-createrepo() {
 #     installPackage buildah podman
 
 #     # Eventually try to switch to Debian
-#     # if ! CNT=$(buildah from debian:$BASE); then
+#     # if ! CNT=$(buildah from debian:$DEBIANBASE); then
 #     #     echo "Bad base image for container $CNAME, skipping"
 #     #     continue
 #     # fi
@@ -1422,7 +1431,7 @@ disableCoW() {
     declare mc_system_path="/usr/lib/jriver"
     declare mc_user_path="$HOME/.jriver"
 
-	[[ -d "$mc_user_path" ]] || mkdir -p "$mc_user_path"
+    [[ -d "$mc_user_path" ]] || mkdir -p "$mc_user_path"
 
     for dir in "$mc_system_path" "$mc_user_path"; do
         [[ -d "$dir" ]] || return
@@ -1553,7 +1562,7 @@ main() {
         exit
     fi
 
-    getVersion
+    setMCVersion
 
     if (( UNINSTALL_SWITCH )); then
         if askOk "Do you really want to uninstall JRiver Media Center?"; then