Thank you, Tobias, for the explanation

--------------------------------------------------------

Found that the file

MultiByteFileStream:
'/home/user20/Documents/Squeak6.0alpha-17382-64bit-All-in-One.app/Contents/Resources/package-cache/Metacello-MC-dkh.680.mcz'

just had 0 bytes length. I deleted it and restarted [3]. Then the load
process [4] as given in https://github.com/Metacello/metacello went
fine.

--Hannes

----------------------------------------------------

[3]
"Bootstrap Metacello Preview, using mcz files (#'previewBootstrap'
symbolic version"
((Smalltalk at: #ConfigurationOfMetacello) project
  version: #'previewBootstrap') load.


------------------------------------------------------------------------------------------
[4] Installation instructions for Metacello (
http://wiki.squeak.org/squeak/6157 )
https://github.com/Metacello/metacello



"Get the Metacello configuration (for Squeak users)"
Installer gemsource
    project: 'metacello';
    addPackage: 'ConfigurationOfMetacello';
    install.

"Bootstrap Metacello Preview, using mcz files (#'previewBootstrap'
symbolic version"
((Smalltalk at: #ConfigurationOfMetacello) project
  version: #'previewBootstrap') load.

"Load the Preview version of Metacello from GitHub"
(Smalltalk at: #Metacello) new
  configuration: 'MetacelloPreview';
  version: #stable;
  repository: 'github://dalehenrich/metacello-work:configuration';
  load.

"Now load latest version of Metacello"
(Smalltalk at: #Metacello) new
  baseline: 'Metacello';
  repository: 'github://dalehenrich/metacello-work:master/repository';
  get.
(Smalltalk at: #Metacello) new
  baseline: 'Metacello';
  repository: 'github://dalehenrich/metacello-work:master/repository';
  load.

On 9/28/17, Tobias Pape <Das.Linux at gmx.de> wrote:
> Hi Hannes
>
>> On 28.09.2017, at 11:45, H. Hirzel <hannes.hirzel at gmail.com> wrote:
>>
>> Hello
>>
>> Following the Metacello installation instructions [1] the following
>> step A runs fine but the step  B afterwards gives an error message
>> 'File too short'    [2], marked with '"ERROR FILE TOO SHORT'
>>
>> "A: Get the Metacello configuration (for Squeak users)"
>> Installer gemsource
>>    project: 'metacello';
>>    addPackage: 'ConfigurationOfMetacello';
>>    install.
>>
>>
>> "B: Bootstrap Metacello Preview, using mcz files (#'previewBootstrap'
>> symbolic version"
>> ((Smalltalk at: #ConfigurationOfMetacello) project
>>  version: #'previewBootstrap') load.
>>
>>
>> Any suggestion how to fix this?
>
>
> Please make sure to clean your package cache, maybe an mcz got corrupted
> earlier during download.
> (I just recently fixed some things in the workflow)
>
> For reference, When I execute the snippet, My transcript output is as
> follows:
>
> ================================================================================================================================================
> found ConfigurationOfMetacello-topa.803.mcz...
>
> ConfigurationOfMetacello class>>unloadMetacello (Gofer is Undeclared) loaded
>
> Loading 1.0-beta.31.1.8 of ConfigurationOfMetacello...
> Fetched -> ConfigurationOfGofer-dkh.45 ---
> http://seaside.gemtalksystems.com/ss/metacello ---
> http://seaside.gemtalksystems.com/ss/metacello
> Loaded -> ConfigurationOfGofer-dkh.45 ---
> http://seaside.gemtalksystems.com/ss/metacello ---
> http://seaside.gemtalksystems.com/ss/metacello
> Project: Gofer Core 1.0.5.1
> Fetched -> Gofer-Core.squeak-dkh.135 ---
> http://seaside.gemtalksystems.com/ss/metacello ---
> http://seaside.gemtalksystems.com/ss/metacello
> Fetched -> Metacello-Core-dkh.494 ---
> http://smalltalkhub.com/mc/dkh/metacello/main ---
> http://seaside.gemtalksystems.com/ss/metacello
> Fetched -> Metacello-Platform.squeak-dkh.17 ---
> http://seaside.gemtalksystems.com/ss/metacello ---
> http://smalltalkhub.com/mc/dkh/metacello/main
> Loaded -> Gofer-Core.squeak-dkh.135 ---
> http://seaside.gemtalksystems.com/ss/metacello --- cache
> Loaded -> Metacello-Core-dkh.494 ---
> http://smalltalkhub.com/mc/dkh/metacello/main --- cache
> MetacelloSqueakPlatform>>downloadFile:to: (OSProcess is Undeclared)
> MetacelloSqueakPlatform>>downloadFile:to: (OSProcess is Undeclared)
> MetacelloSqueakPlatform>>extractRepositoryFrom:to: (OSProcess is Undeclared)
> Loaded -> Metacello-Platform.squeak-dkh.17 ---
> http://seaside.gemtalksystems.com/ss/metacello --- cache
> ...finished 1.0-beta.31.1.8
> Loading 1.0-beta.32.3 of ConfigurationOfMetacello...
> Fetched -> ConfigurationOfFileTree-dkh.67 ---
> http://ss3.gemtalksystems.com/ss/FileTree ---
> http://ss3.gemtalksystems.com/ss/FileTree
> Loaded -> ConfigurationOfFileTree-dkh.67 ---
> http://ss3.gemtalksystems.com/ss/FileTree ---
> /Users/tobias/dev/Squeak-Trunk/package-cache
> Project: FileTree stable
> Fetched -> MonticelloFileTree-Core.squeak43-dkh.169 ---
> http://ss3.gemtalksystems.com/ss/FileTree ---
> http://ss3.gemtalksystems.com/ss/FileTree
> Fetched -> MonticelloFileTree-FileDirectory-Utilities.squeak43-dkh.12 ---
> http://ss3.gemtalksystems.com/ss/FileTree ---
> http://ss3.gemtalksystems.com/ss/FileTree
> Project: Gofer stable
> Fetched -> Metacello-Base-dkh.109 ---
> http://smalltalkhub.com/mc/dkh/metacello/main ---
> http://seaside.gemtalksystems.com/ss/metacello
> Fetched -> Metacello-Core-dkh.695 ---
> http://seaside.gemtalksystems.com/ss/metacello ---
> http://smalltalkhub.com/mc/dkh/metacello/main
> Fetched -> Metacello-MC-dkh.680 ---
> http://smalltalkhub.com/mc/dkh/metacello/main ---
> http://seaside.gemtalksystems.com/ss/metacello
> Fetched -> Metacello-Platform.squeak-tfel.25 ---
> http://smalltalkhub.com/mc/dkh/metacello/main ---
> http://seaside.gemtalksystems.com/ss/metacello
> Fetched -> Metacello-ToolBox-dkh.134 ---
> http://smalltalkhub.com/mc/dkh/metacello/main ---
> http://seaside.gemtalksystems.com/ss/metacello
> Fetched -> Metacello-FileTree-dkh.29 ---
> http://seaside.gemtalksystems.com/ss/metacello ---
> http://smalltalkhub.com/mc/dkh/metacello/main
> Fetched -> Metacello-GitHub-dkh.29 ---
> http://smalltalkhub.com/mc/dkh/metacello/main ---
> http://seaside.gemtalksystems.com/ss/metacello
> MCFileTreeStCypressWriter class>>fileNameForSelector:(specials is shadowed)
> Loaded -> MonticelloFileTree-Core.squeak43-dkh.169 ---
> http://ss3.gemtalksystems.com/ss/FileTree --- cache
> Loaded -> MonticelloFileTree-FileDirectory-Utilities.squeak43-dkh.12 ---
> http://ss3.gemtalksystems.com/ss/FileTree --- cache
> BaselineOf>>projectClass (MetacelloMCBaselineProject is Undeclared)
> ConfigurationOf>>versionNumberClass (MetacelloSemanticVersionNumber is
> Undeclared)
> Loaded -> Metacello-Base-dkh.109 ---
> http://smalltalkhub.com/mc/dkh/metacello/main --- cache
> MetacelloProjectRegistration>>version (MetacelloMCBaselineProject is
> Undeclared)
> MetacelloBaselineSpecGenerator>>projectSpecCreationBlock
> (MetacelloMCBaselineProject is Undeclared)
> Loaded -> Metacello-Core-dkh.695 ---
> http://seaside.gemtalksystems.com/ss/metacello --- cache
> Loaded -> Metacello-MC-dkh.680 ---
> http://smalltalkhub.com/mc/dkh/metacello/main --- cache
> Loaded -> Metacello-Platform.squeak-tfel.25 ---
> http://smalltalkhub.com/mc/dkh/metacello/main --- cache
> Loaded -> Metacello-ToolBox-dkh.134 ---
> http://smalltalkhub.com/mc/dkh/metacello/main --- cache
> Loaded -> Metacello-FileTree-dkh.29 ---
> http://seaside.gemtalksystems.com/ss/metacello --- cache
> Loaded -> Metacello-GitHub-dkh.29 ---
> http://smalltalkhub.com/mc/dkh/metacello/main --- cache
> Evaluated -> 1.0-beta.32.3 [ConfigurationOfMetacello] >>
> metacelloPrimeRegistry
> ...finished 1.0-beta.32.3
> ================================================================================================================================================
>
> Hope that helps.
>
> Best regards
> 	-Tobias
>
> PS: Metacello is now at https://github.com/Metacello/metacello but the
> bootstrap should work nonetheless.
>
>
>
>>
>> Kind regards
>> Hannes
>>
>>
>> [1] https://github.com/dalehenrich/metacello-work
>>
>> [2] ZipArchive class findEndOfCentralDirectoryFrom: stream
>> 	"Seek in the given stream to the end, then read backwards until we find
>> the
>> 	signature of the central directory record. Leave the file positioned
>> right
>> 	before the signature.
>>
>> 	Answers the file position of the EOCD, or 0 if not found."
>>
>> 	| data fileLength seekOffset pos maxOffset |
>> 	stream setToEnd.
>> 	fileLength := stream position.
>> 	"If the file length is less than 18 for the EOCD length plus 4 for
>> the signature, we have a problem"
>> 	fileLength < 22 ifTrue: [^ self error: 'file is too short'].
>> "ERROR FILE TOO SHORT"
>> 	
>> 	seekOffset := 0.
>> 	pos := 0.
>> 	data := ByteArray new: 4100.
>> 	maxOffset := 40960 min: fileLength.	"limit search range to 40K"
>>
>> 	[
>> 		seekOffset := (seekOffset + 4096) min: fileLength.
>> 		stream position: fileLength - seekOffset.
>> 		data := stream next: (4100 min: seekOffset) into: data startingAt: 1.
>> 		pos := self lastIndexOfPKSignature: EndOfCentralDirectorySignature in:
>> data.
>> 		pos = 0 and: [seekOffset < maxOffset]
>> 	] whileTrue.
>>
>> 	^ pos > 0
>> 		ifTrue: [ | newPos | stream position: (newPos := (stream position +
>> pos - seekOffset - 1)). newPos]
>> 		ifFalse: [0]
>>
>
>
>