yelp-build: Added -p option for fallback path for files

Especially when doing translations, it's common to have only some
of the source files in the current directory, and for the rest to
just live untranslated in another directory. This makes it much
easier to use yelp-build for that case, without manually copying
or linking files first.

1 files changed, 52 insertions, 6 deletions

diff --git a/tools/yelp-build.in b/tools/yelp-build.in
index 50f28f5..c245174 100755
--- a/tools/yelp-build.in
+++ b/tools/yelp-build.in
@@ -117,6 +117,7 @@ yelp_usage_epub () {
         echo "  -c CACHE      Use the existing Mallard cache CACHE"
         echo "  -o OUT        Output en EPUB file named OUT"
         echo "  -x CUSTOM     Import the custom XSLT file CUSTOM"
+        echo "  -p PATHS      Extra paths to search for files"
     ) 1>&2
 }
 yelp_usage_html () {
@@ -131,6 +132,7 @@ yelp_usage_html () {
         echo "  -c CACHE      Use the existing Mallard cache CACHE"
         echo "  -o OUT        Output files in the directory OUT"
         echo "  -x CUSTOM     Import the custom XSLT file CUSTOM"
+        echo "  -p PATHS      Extra paths to search for files"
     ) 1>&2
 }
 
@@ -139,6 +141,12 @@ if [ $# = 0 ]; then
     exit 1
 fi
 
+yelp_paths_normalize () {
+    for path in $(echo "$1" | sed -e 's/[: ]/\n/g'); do
+        (cd "$path" && pwd)
+    done | tr '\n' ' '
+}
+
 yelp_cache_in () {
     echo '<cache:cache xmlns:cache="http://projectmallard.org/cache/1.0/"'
     echo '  xmlns="http://projectmallard.org/1.0/">'
@@ -180,7 +188,8 @@ yelp_cache () {
         yelp_usage_cache
         exit 1
     fi
-    yelp_cache_in "$@" | xsltproc --xinclude -o "$cache_out" "$xsl_mal_cache" -
+    yelp_cache_in "$@" | xsltproc --path "$html_paths" \
+        --xinclude -o "$cache_out" "$xsl_mal_cache" -
 }
 
 yelp_html_xsl_common () {
@@ -260,7 +269,7 @@ yelp_html_db2html () {
             echo '<xsl:import href="'"$xsl"'"/>'
             yelp_html_xsl_common
             echo '</xsl:stylesheet>'
-        ) | xsltproc --xinclude -o "$html_out"/ - "$xml"
+        ) | xsltproc --path "$html_paths" --xinclude -o "$html_out"/ - "$xml"
         # Copy media
         if [ "x$xmldir" != "x$html_out" ]; then
             (
@@ -278,11 +287,23 @@ yelp_html_db2html () {
                 echo ' </xsl:for-each>'
                 echo '</xsl:template>'
                 echo '</xsl:stylesheet>'
-            ) | xsltproc --xinclude - "$xml" | while read media; do
+            ) | xsltproc --path "$html_paths" --xinclude - "$xml" | while read media; do
                 mfile=`echo "$media" | urldecode`
                 minput="$xmldir/$mfile"
                 moutput="$html_out/$mfile"
                 mkdir_p `dirname "$moutput"`
+                if [ ! -f "$minput" -a "x$html_paths" != "x" ]; then
+                    if [ $(expr index "$minput" "$(pwd)/") = 1 ]; then
+                        minput_rel=$(expr substr "$minput" \
+                            $(expr length "$(pwd)//") $(expr length "$minput"))
+                        for path in $html_paths; do
+                            if [ -f "$path/$minput_rel" ]; then
+                                minput="$path/$minput_rel"
+                                break
+                            fi
+                        done
+                    fi
+                fi
                 cp "$minput" "$moutput"
             done
         fi
@@ -312,7 +333,7 @@ yelp_html_db2html () {
             echo ' </xsl:for-each>'
             echo '</xsl:template>'
             echo '</xsl:stylesheet>'
-        ) | xsltproc --xinclude - "$xml" | sort | uniq | while read icon; do
+        ) | xsltproc --path "$html_paths" --xinclude - "$xml" | sort | uniq | while read icon; do
             cp "${yelp_icon_dir}/${icon}.png" "$html_out/$html_internal_datadir"
         done;
         # Copy jQuery
@@ -342,7 +363,7 @@ yelp_html_db2html () {
             echo ' </xsl:for-each>'
             echo '</xsl:template>'
             echo '</xsl:stylesheet>'
-        ) | xsltproc --xinclude - "$xml" | sort | uniq \
+        ) | xsltproc --path "$html_paths" --xinclude - "$xml" | sort | uniq \
             | grep '^contents syntax ' | sed -e 's/^contents syntax brush-/brush./' \
             | while read js; do
             cp "${yelp_js_dir}/jquery.syntax.${js}.js" "$html_out/$html_internal_datadir"
@@ -393,7 +414,8 @@ yelp_html_mal2html () {
         echo '</xsl:for-each>'
         echo '</xsl:template>'
         echo '</xsl:stylesheet>'
-    ) | (cd "$html_out" && xsltproc $html_profile --xinclude \
+    ) | (cd "$html_out" && xsltproc $html_profile \
+        --path "$html_paths" --xinclude \
         --stringparam mal.files.copy.icon.dir "$yelp_icon_dir" \
         --stringparam mal.files.copy.js.dir "$yelp_js_dir" \
         - "$html_tmp_infile") | sort | uniq | \
@@ -407,6 +429,18 @@ yelp_html_mal2html () {
         else
             line_dest="$html_out/"`echo "$line" | cut -d' ' -f2`
         fi
+        if [ ! -f "$line_src" -a "x$html_paths" != "x" ]; then
+            if [ $(expr index "$line_src" "$(pwd)/") = 1 ]; then
+                line_src_rel=$(expr substr "$line_src" \
+                    $(expr length "$(pwd)//") $(expr length "$line_src"))
+                for path in $html_paths; do
+                    if [ -f "$path/$line_src_rel" ]; then
+                        line_src="$path/$line_src_rel"
+                        break
+                    fi
+                done
+            fi
+        fi
         line_dest=`echo "$line_dest" | urldecode`
         if [ "$line_src" != "$line_dest" ]; then
             line_dir=`dirname "$line_dest"`
@@ -438,6 +472,11 @@ yelp_html () {
                 html_custom="$1"
                 shift
                 ;;
+            "-p")
+                shift
+                html_paths=$(yelp_paths_normalize "$1")
+                shift
+                ;;
             "--profile")
                 html_profile="--profile"
                 shift
@@ -489,6 +528,11 @@ yelp_epub () {
                 html_custom="$1"
                 shift
                 ;;
+            "-p")
+                shift
+                html_paths=$(yelp_paths_normalize "$1")
+                shift
+                ;;
             *)
                 break
                 ;;
@@ -517,11 +561,13 @@ yelp_epub () {
     epub_id=`uuidgen`
     epub_data=`(cd "$html_out" && ls yelp/*.*)`
     xsltproc \
+        --path "$html_paths" \
         -o "$html_out/opf.opf" \
         --stringparam opf.id "$epub_id" \
         --stringparam opf.data "$epub_data" \
         "$xsl_mal_opf" "$epub_cache_file"
     xsltproc \
+        --path "$html_paths" \
         -o "$html_out/ncx.ncx" \
         --stringparam ncx.id "$epub_id" \
         "$xsl_mal_ncx" "$epub_cache_file"