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Move showDiffDetails property to ComparisonData
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This simplifies testing of comparators with different values of this
property.
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HannesWell committed Jul 6, 2023
1 parent 1daa6ea commit 65ba54f
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Showing 4 changed files with 23 additions and 30 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -19,22 +19,22 @@

public interface ArtifactComparator {

public static class ComparisonData {
public static record ComparisonData(List<String> ignoredPattern, boolean writeDelta, boolean showDiffDetails) {

public ComparisonData(List<String> ignoredPattern, boolean writeDelta) {
this.ignoredPattern = ignoredPattern != null ? List.copyOf(ignoredPattern) : List.of();
this.writeDelta = writeDelta;
}
/**
* System property that control if a detailed diff is desired or not, <code>false</code>
* (default) = no detailed diff is shown, <code>true</code> show detailed difference.
*/
private static final boolean SHOW_DIFF_DETAILS = Boolean.getBoolean("tycho.comparator.showDiff");

private final List<String> ignoredPattern;
private boolean writeDelta;

public List<String> ignoredPattern() {
return ignoredPattern;
public ComparisonData(List<String> ignoredPattern, boolean writeDelta) {
this(ignoredPattern, writeDelta, SHOW_DIFF_DETAILS);
}

public boolean writeDelta() {
return writeDelta;
public ComparisonData(List<String> ignoredPattern, boolean writeDelta, boolean showDiffDetails) {
this.ignoredPattern = ignoredPattern != null ? List.copyOf(ignoredPattern) : List.of();
this.writeDelta = writeDelta;
this.showDiffDetails = showDiffDetails;
}
}

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Original file line number Diff line number Diff line change
Expand Up @@ -21,12 +21,6 @@

public interface ContentsComparator {

/**
* System property that control if a detailed diff is desired or not, <code>false</code>
* (default) = no detailed diff is shown, <code>true</code> show detailed difference.
*/
static final boolean SHOW_DIFF_DETAILS = Boolean.getBoolean("tycho.comparator.showDiff");

/**
* System property that controls the threshold size where a direct byte compare is performed
* (default 5 mb)
Expand All @@ -36,7 +30,7 @@ public interface ContentsComparator {
/**
* Computes the delta for the given {@link InputStream}s, the streams passed will support
* mark/reset for repeated reads.
*
*
* @param baseline
* the baseline data
* @param reactor
Expand All @@ -51,7 +45,7 @@ public ArtifactDelta getDelta(ComparatorInputStream baseline, ComparatorInputStr

/**
* Check if this comparator matches the given name or extension
*
*
* @param nameOrExtension
* the extension or name to match
* @return <code>true</code> if this comparator matches, <code>false</code> otherwise
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
*
* Contributors:
* Christoph Läubrich - initial API and implementation
*******************************************************************************/
Expand Down Expand Up @@ -48,12 +48,12 @@ public static ArtifactDelta compareText(ComparatorInputStream baseline, Comparat
ByteIterator reactorIterator = new ByteIterator(reactor.asBytes());
while (baselineIterator.hasNext() && reactorIterator.hasNext()) {
if (baselineIterator.next() != reactorIterator.next()) {
return createDelta(ArtifactDelta.DEFAULT.getMessage(), baseline, reactor);
return createDelta(ArtifactDelta.DEFAULT.getMessage(), baseline, reactor, data);
}
}
//now both need to be at the end of the stream if they are the same!
if (baselineIterator.hasNext() || reactorIterator.hasNext()) {
return createDelta(ArtifactDelta.DEFAULT.getMessage(), baseline, reactor);
return createDelta(ArtifactDelta.DEFAULT.getMessage(), baseline, reactor, data);
}
return ArtifactDelta.NO_DIFFERENCE;
}
Expand Down Expand Up @@ -100,8 +100,8 @@ public boolean matches(String nameOrExtension) {
}

public static ArtifactDelta createDelta(String message, ComparatorInputStream baseline,
ComparatorInputStream reactor) {
if (SHOW_DIFF_DETAILS) {
ComparatorInputStream reactor, ComparisonData data) {
if (data.showDiffDetails()) {
String detailed;
try {
List<String> source = IOUtils.readLines(baseline.asNewStream(), StandardCharsets.UTF_8);
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
*
* Contributors:
* Christoph Läubrich - initial API and implementation
*******************************************************************************/
Expand Down Expand Up @@ -43,21 +43,20 @@ public ArtifactDelta getDelta(ComparatorInputStream baseline, ComparatorInputStr
Diff baselineDiff = computeDiff(baseline, reactor);
if (baselineDiff.hasDifferences()) {
String message = baselineDiff.fullDescription();
return TextComparator.createDelta(message, baseline, reactor);
return TextComparator.createDelta(message, baseline, reactor, data);
}
return null;
} catch (RuntimeException e) {
return TextComparator.createDelta(ArtifactDelta.DEFAULT.getMessage(), baseline, reactor);
return TextComparator.createDelta(ArtifactDelta.DEFAULT.getMessage(), baseline, reactor, data);
}
}

private Diff computeDiff(InputStream baseline, InputStream reactor) {
Diff baselineDiff = DiffBuilder.compare(Input.fromStream(baseline))//
return DiffBuilder.compare(Input.fromStream(baseline))//
.withTest(Input.fromStream(reactor))//
.checkForSimilar()//
.ignoreComments() //
.ignoreWhitespace().build();
return baselineDiff;
}

@Override
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