t0410: test fetching from many promisor remotes

diff --git a/Documentation/doc-diff b/Documentation/doc-diff
index 36fc2307a795ccac4f107fe3fb556ade1af9e2fa..3355be479812375d8a01d316d26425c3d14be63d 100755 (executable)
--- a/Documentation/doc-diff
+++ b/Documentation/doc-diff
@@ -21,6 +21,7 @@ asciidoc              use asciidoc with both commits
 to-asciidoc            use asciidoc with the 'to'-commit
 to-asciidoctor         use asciidoctor with the 'to'-commit
 asciidoctor            use asciidoctor with both commits
+cut-header-footer      cut away header and footer
 "
 SUBDIRECTORY_OK=1
 . "$(git --exec-path)/git-sh-setup"
@@ -30,6 +31,7 @@ force=
 clean=
 from_program=
 to_program=
+cut_header_footer=
 while test $# -gt 0
 do
        case "$1" in
@@ -53,6 +55,8 @@ do
        --asciidoc)
                from_program=-asciidoc
                to_program=-asciidoc ;;
+       --cut-header-footer)
+               cut_header_footer=-cut-header-footer ;;
        --)
                shift; break ;;
        *)
@@ -114,8 +118,8 @@ construct_makemanflags () {
 from_makemanflags=$(construct_makemanflags "$from_program") &&
 to_makemanflags=$(construct_makemanflags "$to_program") &&
 
-from_dir=$from_oid$from_program &&
-to_dir=$to_oid$to_program &&
+from_dir=$from_oid$from_program$cut_header_footer &&
+to_dir=$to_oid$to_program$cut_header_footer &&
 
 # generate_render_makefile <srcdir> <dstdir>
 generate_render_makefile () {
@@ -164,6 +168,17 @@ render_tree () {
                        "$tmp/rendered/$dname+" |
                make -j$parallel -f - &&
                mv "$tmp/rendered/$dname+" "$tmp/rendered/$dname"
+
+               if test "$cut_header_footer" = "-cut-header-footer"
+               then
+                       for f in $(find "$tmp/rendered/$dname" -type f)
+                       do
+                               tail -n +3 "$f" | head -n -2 |
+                               sed -e '1{/^$/d}' -e '${/^$/d}' >"$f+" &&
+                               mv "$f+" "$f" ||
+                               return 1
+                       done
+               fi
        fi
 }