(:~ build utils for REPO packaging :)
module namespace build = 'urn:quodatum:build1';

(:~ create a flat fat jar :)
declare function build:fatjar-from-folder($input-dir as xs:string,$manifest-jar as xs:string)
as xs:base64Binary { 
    let $fold :=
function ($res as map (*), $jar as xs:string) { 
    let $bin :=file:read-binary($input-dir || $jar),
        $paths := archive:entries($bin)/string()
        [$jar eq $manifest-jar or not(starts-with( .,"META-INF/"))]
    return
        map { "name" : ($res? name, $paths), 
              "content" : ($res? content,archive:extract-binary($bin, $paths)) } 
}
let $res := fold-left(file:list($input-dir, false(), "*.jar"), map { }, $fold)
return
    archive:create($res? name, $res? content,
                   map { "format" : "zip", "algorithm" : "deflate" }) 
};

(:~ create a fat jar with lib :)
declare function build:fatjar-with-lib($input-dir as xs:string,$manifest-jar as xs:string)
 { 
 let $bin :=file:read-binary($input-dir || $manifest-jar)
  
 let $lib:=file:list($input-dir || "lib/", false(), "*.jar")!concat("lib/",.)
 let $name:= (archive:entries($bin)/string()
              ,$lib)
 let  $content:=(archive:extract-binary($bin,$name)
                ,$lib!file:read-binary($input-dir || .))
return  archive:create($name, $content,
                   map { "format" : "zip", "algorithm" : "deflate" }) 
};

(:~ update-manifest :)
declare function build:update-manifest($jar  as xs:base64Binary,$main-class as xs:string)
as xs:base64Binary{
(: let $mf:=archive:extract-text($jar,"META-INF/MANIFEST.MF") :)

let $mf2:=concat("Manifest-Version: 1.0
Main-Class: ",
                 $main-class,
                 "

")
return archive:update($jar,"META-INF/MANIFEST.MF",$mf2)
};

(:~ update-manifest :)
declare function build:update($jar as xs:base64Binary,$name  as xs:string,$file as xs:string)
as xs:base64Binary{
archive:update($jar,$name,$file)
};