Aegisub/aegisub/build/BuildTasks/DependencyFetchers.fs

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// Copyright (c) 2012, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
module DependencyFetchers
open System
open System.Diagnostics
open System.Linq
open Microsoft.Build.Evaluation
open Microsoft.Build.Framework
open Microsoft.Build.Utilities
let downloadArchive (url : String) unpackDest =
use wc = new Net.WebClient()
use downloadStream = wc.OpenRead url
use gzStream = new ICSharpCode.SharpZipLib.GZip.GZipInputStream(downloadStream)
use tarStream = new ICSharpCode.SharpZipLib.Tar.TarInputStream(gzStream)
use tarArchive = ICSharpCode.SharpZipLib.Tar.TarArchive.CreateInputTarArchive tarStream
tarArchive.ExtractContents unpackDest
type TarballProject() =
inherit Task()
member val Projects : ITaskItem[] = null with get, set
member val Root = "" with get, set
override this.Execute() =
let needsUpdate directory version =
try
not <| String.Equals(sprintf "%s\\version.aegisub" directory |> IO.File.ReadAllText, version)
with | :? IO.IOException -> true
let update directory (project : ITaskItem) version =
try IO.Directory.Delete(directory, true) with | :? IO.IOException -> ()
this.Log.LogMessage ("Downloading {0} {1} from {2}", project.ItemSpec, version, project.GetMetadata "Url")
downloadArchive (project.GetMetadata "Url") (sprintf @"%s\.." directory)
let dirname = project.GetMetadata "DirName"
if not <| String.IsNullOrWhiteSpace dirname
then IO.Directory.Move(dirname |> sprintf @"%s\..\%s" directory, directory)
IO.File.WriteAllText(sprintf @"%s\version.aegisub" directory, version)
let check (project : ITaskItem) =
let directory = sprintf "%s\\%s" this.Root project.ItemSpec
let version = project.GetMetadata "Version"
if needsUpdate directory <| version
then update directory project version
else this.Log.LogMessage <| sprintf "%s is up to date" project.ItemSpec
try
this.Projects |> Array.map check |> ignore
true
with e ->
this.Log.LogErrorFromException e
false
type DownloadTgzFile() =
inherit Task()
member val Url = "" with get, set
member val Destination = "" with get, set
member val OutputFile = "" with get, set
member val Hash = "" with get, set
override this.Execute() =
let needsDownload =
try
use fs = IO.File.OpenRead this.OutputFile
let sha = new Security.Cryptography.SHA1Managed ()
let hash = sha.ComputeHash fs
BitConverter.ToString(hash).Replace("-", "") <> this.Hash
with | :? IO.IOException -> true
try
if needsDownload
then downloadArchive this.Url this.Destination
true
with e ->
this.Log.LogErrorFromException e
false