Adding upstream version 2.1.6.upstream/2.1.6

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 98 insertions, 0 deletions

diff --git a/xml/best-match.sh b/xml/best-match.sh
new file mode 100755
index 0000000..580c29f
--- /dev/null
+++ b/xml/best-match.sh
@@ -0,0 +1,98 @@
+#!/bin/sh
+#
+# Find the (sub-)schema that best matches a desired version.
+#
+# Version numbers are assumed to be in the format X.Y,
+# where X and Y are integers, and Y is no more than 3 digits,
+# or the special value "next".
+#
+
+# (Sub-)schema name (e.g. "resources")
+base="$1"; shift
+
+# Desired version (e.g. "1.0" or "next")
+target="$1"; shift
+
+# If not empty, append the best match as an XML externalRef to this file
+# (otherwise, just echo the best match). Using readlink allows building
+# from a different directory.
+destination="$(readlink -f "$1")"; shift
+
+# Arbitrary text to print before XML (generally spaces to indent)
+prefix="$1"; shift
+
+# Allow building from a different directory
+cd "$(dirname $0)"
+
+list_candidates() {
+    ls -1 "${1}.rng" "${1}"-[0-9]*.rng 2>/dev/null
+}
+
+version_from_filename() {
+    vff_filename="$1"
+
+    case "$vff_filename" in
+        *-*.rng)
+            echo "$vff_filename" | sed -e 's/.*-\(.*\).rng/\1/'
+            ;;
+        *)
+            # special case for bare ${base}.rng, no -0.1's around anyway
+            echo 0.1
+            ;;
+    esac
+}
+
+filename_from_version() {
+    ffv_version="$1"
+    ffv_base="$2"
+
+    if [ "$ffv_version" = "0.1" ]; then
+        echo "${ffv_base}.rng"
+    else
+        echo "${ffv_base}-${ffv_version}.rng"
+    fi
+}
+
+# Convert version string (e.g. 2.10) into integer (e.g. 2010) for comparisons
+int_version() {
+    echo "$1" | awk -F. '{ printf("%d%03d\n", $1,$2); }';
+}
+
+best="0.0"
+for rng in $(list_candidates "${base}"); do
+    case ${rng} in
+        ${base}-${target}.rng)
+            # We found exactly what was requested
+            best=${target}
+            break
+            ;;
+        *-next.rng)
+            # "Next" schemas cannot be a best match unless directly requested
+            ;;
+        *)
+            v=$(version_from_filename "${rng}")
+	    if [ $(int_version "${v}") -gt $(int_version "${best}") ]; then
+                # This version beats the previous best match
+
+                if [ "${target}" = "next" ]; then
+                    best=${v}
+                elif [ $(int_version "${v}") -lt $(int_version "${target}") ]; then
+                    # This value is best only if it's still less than the target
+                    best=${v}
+                fi
+            fi
+            ;;
+    esac
+done
+
+if [ "$best" != "0.0" ]; then
+    found=$(filename_from_version "$best" "$base")
+    if [ -z "$destination" ]; then
+        echo "$(basename $found)"
+    else
+        echo "${prefix}<externalRef href=\"$(basename $found)\"/>" >> "$destination"
+    fi
+    exit 0
+fi
+
+exit 1