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feature: configurable CoW incremental backup
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| distributionBase=GRADLE_USER_HOME | ||
| distributionPath=wrapper/dists | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip | ||
| zipStoreBase=GRADLE_USER_HOME | ||
| zipStorePath=wrapper/dists |
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56 changes: 56 additions & 0 deletions
56
src/main/java/com/keuin/kbackupfabric/config/KBackupConfig.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package com.keuin.kbackupfabric.config; | ||
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| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.ObjectWriter; | ||
| import com.keuin.kbackupfabric.util.PrintUtil; | ||
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| import java.io.File; | ||
| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
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| public class KBackupConfig { | ||
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| private static KBackupConfig instance = getDefault(); | ||
| private static final String CONFIG_FILE = "kbackup.json"; | ||
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| @JsonProperty("incbak_cow") | ||
| private Boolean incbakCow; | ||
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| public static KBackupConfig getInstance() { | ||
| return instance; | ||
| } | ||
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| private static KBackupConfig getDefault() { | ||
| return new KBackupConfig(false); | ||
| } | ||
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| public static void load() throws IOException { | ||
| File file = new File(CONFIG_FILE); | ||
| ObjectMapper om = new ObjectMapper(); | ||
| try { | ||
| instance = om.readValue(file, KBackupConfig.class); | ||
| } catch (FileNotFoundException ignored) { | ||
| // generate default config file | ||
| PrintUtil.info("Config file does not exist. Creating default config: " + CONFIG_FILE); | ||
| instance = getDefault(); | ||
| ObjectWriter w = om.writerWithDefaultPrettyPrinter(); | ||
| w.writeValue(file, instance); | ||
| } | ||
| } | ||
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| public KBackupConfig() { | ||
| } | ||
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| public KBackupConfig(Boolean incbakCow) { | ||
| this.incbakCow = incbakCow; | ||
| } | ||
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| public Boolean getIncbakCow() { | ||
| return this.incbakCow; | ||
| } | ||
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| public void setIncbakCow(Boolean incbakCow) { | ||
| this.incbakCow = incbakCow; | ||
| } | ||
| } |
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9 changes: 9 additions & 0 deletions
9
src/main/java/com/keuin/kbackupfabric/util/cow/FileCopier.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| package com.keuin.kbackupfabric.util.cow; | ||
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| import java.io.IOException; | ||
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| public interface FileCopier { | ||
| void copy(String dst, String src) throws IOException; | ||
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| boolean isCow(); | ||
| } |
41 changes: 41 additions & 0 deletions
41
src/main/java/com/keuin/kbackupfabric/util/cow/FileCowCopier.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| package com.keuin.kbackupfabric.util.cow; | ||
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| import com.keuin.kbackupfabric.util.PrintUtil; | ||
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| import java.io.IOException; | ||
| import java.util.concurrent.atomic.AtomicBoolean; | ||
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| public final class FileCowCopier { | ||
| private static final AtomicBoolean initialized = new AtomicBoolean(false); | ||
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| static { | ||
| try { | ||
| System.loadLibrary("kbackup_cow"); | ||
| } catch (SecurityException | UnsatisfiedLinkError ignored) { | ||
| } | ||
| } | ||
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| public static native void init(); | ||
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| public static native void copy(String dst, String src) throws IOException; | ||
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| public static native String getVersion(); | ||
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| public static FileCopier getInstance() { | ||
| if (initialized.compareAndSet(false, true)) { | ||
| FileCowCopier.init(); | ||
| PrintUtil.info("kbackup-cow version: " + FileCowCopier.getVersion()); | ||
| } | ||
| return new FileCopier() { | ||
| @Override | ||
| public void copy(String dst, String src) throws IOException { | ||
| FileCowCopier.copy(dst, src); | ||
| } | ||
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| @Override | ||
| public boolean isCow() { | ||
| return true; | ||
| } | ||
| }; | ||
| } | ||
| } |
17 changes: 17 additions & 0 deletions
17
src/main/java/com/keuin/kbackupfabric/util/cow/FileEagerCopier.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package com.keuin.kbackupfabric.util.cow; | ||
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| import java.io.IOException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Paths; | ||
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| public class FileEagerCopier implements FileCopier { | ||
| @Override | ||
| public void copy(String dst, String src) throws IOException { | ||
| Files.copy(Paths.get(src), Paths.get(dst)); | ||
| } | ||
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| @Override | ||
| public boolean isCow() { | ||
| return false; | ||
| } | ||
| } |