Merge "Allow multi-line config items in meta-section of local.conf"

functions-common

@@ -119,6 +119,33 @@ function ini_has_option {
     [ -n "$line" ]
 }
 
+# Add another config line for a multi-line option.
+# It's normally called after iniset of the same option and assumes
+# that the section already exists.
+#
+# Note that iniset_multiline requires all the 'lines' to be supplied
+# in the argument list. Doing that will cause incorrect configuration
+# if spaces are used in the config values.
+#
+# iniadd_literal config-file section option value
+function iniadd_literal {
+    local xtrace=$(set +o | grep xtrace)
+    set +o xtrace
+    local file=$1
+    local section=$2
+    local option=$3
+    local value=$4
+
+    [[ -z $section || -z $option ]] && return
+
+    # Add it
+    sed -i -e "/^\[$section\]/ a\\
+$option = $value
+" "$file"
+
+    $xtrace
+}
+
 # Set an option in an INI file
 # iniset config-file section option value
 function iniset {

lib/config

@@ -86,7 +86,11 @@ function merge_config_file {
     # having to do nasty quoting games
     get_meta_section $file $matchgroup $configfile | \
     $CONFIG_AWK_CMD -v configfile=$configfile '
-        BEGIN { section = "" }
+        BEGIN {
+            section = ""
+            last_section = ""
+            section_count = 0
+        }
         /^\[.+\]/ {
             gsub("[][]", "", $1);
             section=$1
@@ -106,10 +110,48 @@ function merge_config_file {
             # need to strip leading & trailing whitespace from value
             sub(/^[ \t]*/, "", value)
             sub(/[ \t]*$/, "", value)
-            print "iniset " configfile " " section " " attr " \x27" value "\x27"
+
+            # cfg_attr_count: number of config lines per [section, attr]
+            # cfg_attr: two dimensional array to keep all the config lines per [section, attr]
+            # cfg_section: keep the section names in the same order as they appear in local.conf
+            # cfg_sec_attr_name: keep the attr names in the same order as they appear in local.conf
+            if (! (section, attr) in cfg_attr_count) {
+                if (section != last_section) {
+                    cfg_section[section_count++] = section
+                    last_section = section
+                }
+                attr_count = cfg_sec_attr_count[section_count - 1]++
+                cfg_sec_attr_name[section_count - 1][attr_count] = attr
+
+                cfg_attr[section, attr][0] = value
+                cfg_attr_count[section, attr] = 1
+            } else {
+                lno = cfg_attr_count[section, attr]++
+                cfg_attr[section, attr][lno] = value
+            }
+        }
+        END {
+            # Process each section in order
+            for (sno = 0; sno < section_count; sno++) {
+                section = cfg_section[sno]
+                # The ini routines simply append a config item immediately
+                # after the section header. To keep the same order as defined
+                # in local.conf, invoke the ini routines in the reverse order
+                for (attr_no = cfg_sec_attr_count[sno] - 1; attr_no >=0; attr_no--) {
+                    attr = cfg_sec_attr_name[sno][attr_no]
+                    if (cfg_attr_count[section, attr] == 1)
+                        print "iniset " configfile " " section " " attr " \x27" cfg_attr[section, attr][0] "\x27"
+                    else {
+                        # For multiline, invoke the ini routines in the reverse order
+                        count = cfg_attr_count[section, attr]
+                        print "iniset " configfile " " section " " attr " \x27" cfg_attr[section, attr][count - 1] "\x27"
+                        for (l = count -2; l >= 0; l--)
+                            print "iniadd_literal " configfile " " section " " attr " \x27" cfg_attr[section, attr][l] "\x27"
+                    }
+                }
+            }
         }
     ' | while read a; do eval "$a"; done
-
 }
 
 

tests/test_config.sh

@@ -104,6 +104,27 @@ drivers = driver=python.import.path.Driver
 [DEFAULT]
 # next line has trailing space
 attr = strip_trailing_space 
+
+[[test-multi-sections|test-multi-sections.conf]]
+[sec-1]
+cfg_item1 = abcd
+cfg_item2 = efgh
+
+[sec-2]
+cfg_item1 = abcd
+cfg_item3 = /1/2/3/4:5
+cfg_item4 = end
+
+[sec-3]
+cfg_item5 = 5555
+cfg_item6 = 6666
+cfg_item5 = 5555another
+
+[[test-multiline|test-multiline.conf]]
+[multi]
+cfg_item1 = "ab":"cd", "ef":   "gh"
+cfg_item1 = abcd
+cfg_item2 = efgh
 EOF
 
 echo -n "get_meta_section_files: test0 doesn't exist: "
@@ -185,8 +206,39 @@ VAL=$(cat test2a.conf)
 # iniset adds a blank line if it creates the file...
 EXPECT_VAL="
 [ddd]
-additional = true
-type = new"
+type = new
+additional = true"
+check_result "$VAL" "$EXPECT_VAL"
+
+echo -n "merge_config_file test-multi-sections: "
+rm -f test-multi-sections.conf
+merge_config_file test.conf test-multi-sections test-multi-sections.conf
+VAL=$(cat test-multi-sections.conf)
+EXPECT_VAL='
+[sec-1]
+cfg_item1 = abcd
+cfg_item2 = efgh
+
+[sec-2]
+cfg_item1 = abcd
+cfg_item3 = /1/2/3/4:5
+cfg_item4 = end
+
+[sec-3]
+cfg_item5 = 5555
+cfg_item5 = 5555another
+cfg_item6 = 6666'
+check_result "$VAL" "$EXPECT_VAL"
+
+echo -n "merge_config_file test-multiline: "
+rm -f test-multiline.conf
+merge_config_file test.conf test-multiline test-multiline.conf
+VAL=$(cat test-multiline.conf)
+EXPECT_VAL='
+[multi]
+cfg_item1 = "ab":"cd", "ef":   "gh"
+cfg_item1 = abcd
+cfg_item2 = efgh'
 check_result "$VAL" "$EXPECT_VAL"
 
 echo -n "merge_config_group test2: "
@@ -196,8 +248,8 @@ VAL=$(cat test2a.conf)
 # iniset adds a blank line if it creates the file...
 EXPECT_VAL="
 [ddd]
-additional = true
-type = new"
+type = new
+additional = true"
 check_result "$VAL" "$EXPECT_VAL"
 
 echo -n "merge_config_group test2 no conf file: "
@@ -268,4 +320,5 @@ attr = strip_trailing_space"
 check_result "$VAL" "$EXPECT_VAL"
 
 rm -f test.conf test1c.conf test2a.conf test-quote.conf test-space.conf test-equals.conf test-strip.conf
+rm -f test-multiline.conf test-multi-sections.conf
 rm -rf test-etc