165 lines
4.7 KiB
Smalltalk
165 lines
4.7 KiB
Smalltalk
"
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I contain simple general functionality used by Grafoscopio, Dataviz
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or other related projects.
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"
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Class {
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#name : #GrafoscopioUtils,
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#superclass : #Object,
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#category : #'Grafoscopio-Utils'
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}
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{ #category : #utilities }
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GrafoscopioUtils class >> checksumFor: aFileReference [
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^ (SHA1 new hashMessage: aFileReference binaryReadStream contents) hex.
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]
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{ #category : #updating }
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GrafoscopioUtils class >> download: fileNameWithRelativePath from: urlString into: aFolder [
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| fileName parentFolder |
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fileName := (fileNameWithRelativePath splitOn: $/) last.
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parentFolder := self ensureCreateDirectory: fileNameWithRelativePath into: aFolder.
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self
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downloadingFrom: urlString, fileNameWithRelativePath
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withMessage: 'Downloading ', fileName
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into: parentFolder
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]
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{ #category : #'graphical interface' }
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GrafoscopioUtils class >> downloadingFrom: downloadUrl withMessage: aString into: location [
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| fileName |
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fileName := (self sanitize: downloadUrl) segments last.
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(location / fileName) ensureDelete.
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[: bar |
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bar title: aString.
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[ZnClient new
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enforceHttpSuccess: true;
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url: downloadUrl;
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downloadTo: location;
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signalProgress: true
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]
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on: HTTPProgress
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do: [ :progress |
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progress isEmpty ifFalse: [ bar current: progress percentage ].
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progress resume ].
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] asJob run.
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^ (location / fileName) asFileReference
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]
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{ #category : #utilities }
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GrafoscopioUtils class >> ensureCreateDirectory: fileNameWithRelativePath into: aFolder [
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| relativePathFolders parentFolder newPath |
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relativePathFolders := (fileNameWithRelativePath splitOn: $/) allButLast.
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newPath := aFolder path.
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relativePathFolders do: [ :folder | newPath := newPath / folder ].
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parentFolder := newPath asFileReference.
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parentFolder ensureCreateDirectory.
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^ parentFolder
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]
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{ #category : #persistence }
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GrafoscopioUtils class >> exportAsSton: anObject on: aFileReference [
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aFileReference exists ifTrue: [ aFileReference ensureDelete ].
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aFileReference ensureCreateFile.
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aFileReference writeStreamDo: [ :stream |
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(STON writer on: stream)
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newLine: String crlf;
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prettyPrint: true;
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keepNewLines: true;
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nextPut: anObject ].
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]
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{ #category : #'graphical interface' }
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GrafoscopioUtils class >> getContentsFrom: url withMessage: aString [
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| client |
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[: bar |
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bar title: aString.
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[client := ZnClient new
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enforceHttpSuccess: true;
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get: (url);
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signalProgress: true
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]
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on: HTTPProgress
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do: [ :progress |
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progress isEmpty ifFalse: [ bar current: progress percentage ].
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progress resume ].
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] asJob run.
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^ client contents.
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]
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{ #category : #persistence }
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GrafoscopioUtils class >> joinLinesFor: aCollection [
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| joinedLines |
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joinedLines := WriteStream on: ''.
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aCollection do: [ :line | joinedLines nextPutAll: line; crlf ].
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^ joinedLines contents
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]
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{ #category : #utilities }
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GrafoscopioUtils class >> perform: aString on: anObject [
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| msg |
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msg := self selectorAndArgumentsFrom: aString.
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msg
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at: 'args'
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ifPresent: [ ^ anObject perform: (msg at: 'selector') withArguments: (msg at: 'args') ]
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ifAbsent: [ ^ anObject perform: (msg at: 'selector') ]
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]
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{ #category : #private }
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GrafoscopioUtils class >> sanitize: url [
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"I remove white spaces in url's and prepend 'http://' to urls when it is ommited, so
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operations that rely on sane and well formed urls don't throw error messages."
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| sanitized modUrl |
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modUrl := url.
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[modUrl asString endsWith: ' ']
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whileTrue: [ modUrl := modUrl copyFrom: 1 to: (modUrl size - 1) ].
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(url asString beginsWith: 'http') "http or https"
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ifFalse: [ sanitized := ('http://', modUrl) asUrl ]
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ifTrue: [ sanitized := modUrl asUrl ].
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^ sanitized
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]
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{ #category : #utilities }
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GrafoscopioUtils class >> selectorAndArgumentsFrom: aString [
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"I return from aString a dictionary that contains a message and an array of arguments used
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in such string. Notice that the keyword message must contain spaces between the ':' and its
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respective argument.
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See GrafoscopioUtilsTest for examples"
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| msgArray answer keywords selector args |
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answer := OrderedDictionary new.
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msgArray := aString splitOn: ':'.
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msgArray size = 1
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ifTrue: [
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^ answer
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at: 'selector' put: (msgArray at: 1) asSymbol;
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yourself ].
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selector := ''.
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args := OrderedCollection new.
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aString
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splitOn: Character space
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do: [ :part |
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part endsWithAColon
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ifTrue: [ selector := selector, part ]
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ifFalse: [ args add: part ] ].
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answer
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at: 'selector' put: selector asSymbol;
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at: 'args' put: args asArray.
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^ answer
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]
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{ #category : #updating }
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GrafoscopioUtils class >> update [
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"Updates GrafoscopioUtils with new versions of itself take from the source code repository."
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Gofer new
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smalltalkhubUser: 'Offray' project: 'Grafoscopio';
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package: 'Grafoscopio-Utils';
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load.
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]
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