fix: [vps] retry in ``odoo dump`` if dump zip's integrity failed

bin/vps

@@ -1684,7 +1684,8 @@ cmdline.spec:odoo:cmd:restore:run() {
 
     local out
 
-    depends zip
+    unzip:require "6.0" || return 1
+
     odoo_service="${opt_service:-odoo}"
 
     if [[ "$ZIP_DUMP_LOCATION" == "http://"* ]] ||
@@ -1710,16 +1711,6 @@ cmdline.spec:odoo:cmd:restore:run() {
         exit 1
     }
 
-    if ! out=$(zip -T "$ZIP_DUMP_LOCATION" 2>&1); then
-        err "Dump file to restore is an invalid zip file."
-        if [ "$opt_debug" ]; then
-            printf "%s" "$out" | prefix "  ${GRAY}|${NORMAL} " >&2
-        else
-            echo "  Use \`\`--debug\`\` (or \`\`-d\`\`) to get more information." >&2
-        fi
-        exit 1
-    fi
-
     opts_compose=()
     [ -t 1 ] && opts_compose+=("--color")
     [ "$opt_debug" ] && {
@@ -1729,6 +1720,13 @@ cmdline.spec:odoo:cmd:restore:run() {
     opts_load=()
     [ "$opt_neutralize" ] && opts_load+=("--neutralize")
 
+    unzip:check-integrity "$ZIP_DUMP_LOCATION" || {
+        if [ -z "$opt_debug" ]; then
+            echo "  Use \`\`--debug\`\` (or \`\`-d\`\`) to get more information." >&2
+        fi
+        return 1
+    }
+
     project_name=$(compose:project_name) || exit 1
     container_name=$(compose:service:container:get "${project_name}" "${odoo_service}") || exit 1
     info "Found container ${CYAN}${container_name}${NORMAL} for service ${DARKYELLOW}$odoo_service${NORMAL}."
@@ -1776,10 +1774,11 @@ cmdline.spec:odoo:cmd:dump:run() {
     : :optval: --database,-D      'Target database (default if not specified)'
     : :optval: --service,-s       "The service (defaults to 'odoo')"
     : :optfla: --debug,-d        "Display debugging information"
+    : :optfla: --force,-f        "Force the dump even if the file already exists"
 
     odoo_service="${opt_service:-odoo}"
 
-    depends zip
+    unzip:require "6.0" || return 1
 
     msg_dbname=default
     [ -n "$opt_database" ] && msg_dbname="'$opt_database'"
@@ -1791,19 +1790,45 @@ cmdline.spec:odoo:cmd:dump:run() {
         opts_compose+=("--debug")
     }
 
+    if [ -e "$DUMP_ZIPFILE" ]; then
+        if [ -z "$opt_force" ]; then
+            err "File '$DUMP_ZIPFILE' already exists."
+            echo "  Use \`\`--force\`\` (or \`\`-f\`\`) to overwrite it." >&2
+            exit 1
+        else
+            info "Removing previous file '$DUMP_ZIPFILE'."
+            rm -f "$DUMP_ZIPFILE" || return 1
+        fi
+    fi
+
+    max_retry=5
+    retry=1
+    success=
+    while [ "$retry" -le "$max_retry" ]; do
+        if [ "$retry" -gt 1 ]; then
+            info "Retry $retry/$max_retry to dump ${DARKYELLOW}$odoo_service${NORMAL}'s $msg_dbname database."
+        fi
         compose --no-hooks "${opts_compose[@]}" save "$odoo_service" $opt_database > "$DUMP_ZIPFILE" || {
             err "Failed dumping ${DARKYELLOW}$odoo_service${NORMAL}'s $msg_dbname database to '$DUMP_ZIPFILE'."
-        exit 1
+            return 1
         }
 
-    if ! zip -T "$DUMP_ZIPFILE" >/dev/null; then
+        unzip:check-integrity "$DUMP_ZIPFILE" || {
             err "Dump produced an invalid zip file '$DUMP_ZIPFILE'. Deleting it."
-        echo "  Note: if the database is too big, you may want to check that the" >&2
-        echo "  \`limit-time-*' parameters are not set to low." >&2
+            if [ -z "$opt_debug" ]; then
+                echo "  Use \`\`--debug\`\` (or \`\`-d\`\`) to get more information." >&2
+            fi
             rm -f "$DUMP_ZIPFILE"
+            ((retry++))
+            continue
+        }
+        success=1
+        break
+    done
+    if [ -z "$success" ]; then
+        err "Failed to dump ${DARKYELLOW}$odoo_service${NORMAL}'s $msg_dbname database to '$DUMP_ZIPFILE'."
         exit 1
     fi
-
     info "Successfully dumped ${DARKYELLOW}$odoo_service${NORMAL}'s $msg_dbname database to '$DUMP_ZIPFILE'."
 
 }
@@ -2215,6 +2240,69 @@ awk:require() {
     done
 }
 
+
+unzip:require() {
+    local require_at_least="$1" version already_installed
+    while true; do
+        if ! version=$(unzip -v 2>/dev/null); then
+            version=""
+        else
+            ## Version is in the first line, here's an example:
+            ##
+            ## UnZip 6.00 of 20 April 2009, by Debian. Original by Info-ZIP.
+
+            version=${version##UnZip }
+            version=${version%% of*}
+        fi
+        if [ -z "$version" ] || version_gt "$require_at_least" "$version"; then
+            if [ -z "$already_installed" ]; then
+                if [ -z "$version" ]; then
+                    info "No 'unzip' available, probably using a clone. Installing 'unzip'..."
+                else
+                    info "Found unzip version '$version'. Updating 'unzip'..."
+                fi
+                apt-get install unzip -y </dev/null || {
+                    err "Failed to install 'unzip'."
+                    return 1
+                }
+                already_installed=true
+            else
+                if [ -z "$version" ]; then
+                    err "No 'unzip' available even after having installed one"
+                else
+                    err "'unzip' version '$version' is lower than required" \
+                        "'$require_at_least' even after updating 'unzip'."
+                fi
+                return 1
+            fi
+            continue
+        fi
+        return 0
+    done
+}
+
+
+unzip:check-integrity() {
+    local file="$1"
+    if ! out=$(unzip -t "$file" 2>&1); then
+        ## remove OK files
+        out=$(printf "%s\n" "$out" | egrep -v "^\s+testing: .*\s+OK$")
+        ## if last line is not "No errors detected in compressed data of $file."
+        ## then it's an error
+        last_line=${out##*$'\n'}
+        if [ "$last_line" == "No errors detected in compressed data of $file." ]; then
+            return 0
+        fi
+        err "Zip file '$file' failed integrity check."
+        if [ -n "$VERBOSE" ]; then
+            printf "%s\n" "$out" | prefix "  ${GRAY}|${NORMAL} " >&2
+        fi
+        return 1
+    fi
+    return 0
+}
+
+
 resource:list() {
     declare -F | egrep -- '-fx? stats:[a-zA-Z0-9_.-]+$' | cut -f 3- -d " " | cut -f 2- -d ":"
 }