Rebol Programming/do-thru

USAGE:

DO-THRU url /args arg /update /check info /boot 

DESCRIPTION:

Do a net file from the disk cache.

DO-THRU is a function value.

ARGUMENTS

• url -- (Type: url file)

REFINEMENTS

• /args
  • arg -- (Type: any)
• /update -- Force update from source site
• /check -- Update only if version, checksum/secure, or date/size do not match.
  • info -- (Type: any)
• /boot -- Run as boot script (sets system/options/path)

SOURCE CODE

do-thru: func [
    "Do a net file from the disk cache." 
    url [url! file!] 
    /args arg 
    /update "Force update from source site" 
    /check {Update only if version, checksum/secure, or date/size do not match.} info 
    /boot "Run as boot script (sets system/options/path)" 
    /local data
][
    if not data: either update [
        read-thru/update/expand url
    ] [
        read-thru/check/expand url info
    ] [
        alert reform ["Cannot run" url] 
        return none
    ] 
    url: path-thru url 
    if boot [system/options/path: first split-path url] 
    do/args url arg
]