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8.4 KiB
Markdown
Executable file
117 lines
No EOL
8.4 KiB
Markdown
Executable file
# [Bld](https://github.com/rife2/rife2/wiki/What-Is-Bld) Extension to Create or Modify Properties Files
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[](http://opensource.org/licenses/BSD-3-Clause)
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[](https://github.com/rife2/bld-property-file/actions/workflows/bld.yml)
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An extension for creating or modifying [property files](https://docs.oracle.com/javase/tutorial/essential/environment/properties.html) with [bld](https://github.com/rife2/rife2/wiki/What-Is-Bld). It is inspired by the [ant PropertyFile task](https://ant.apache.org/manual/Tasks/propertyfile.html).
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```java
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@BuildCommand
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public void updateMajor() throws Exception {
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new PropertyFileOperation(this)
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.file("version.properties")
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.entry(new Entry("version.major").defaultValue(0).type(Types.INT).operation(Operations.ADD))
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.entry(new Entry("version.minor").value(0))
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.entry(new Entry("version.patch").value(0))
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.entry(new Entry("build.date").value("now").pattern("yyyy-MM-dd").type(Types.DATE))
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.execute();
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}
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```
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Invoking the `updateMajor` command, will create the `version.propertees`file:
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```sh
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./bld updateMajor ...
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```
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```ini
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# version.properties
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build.date=2023-04-02
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version.major=1
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version.minor=0
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version.patch=0
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```
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Invoking the `updateMajor` command again, will increase the `version.major` property:
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```sh
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./bld updateMajor ...
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```
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```ini
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# version.properties
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build.date=2023-04-02
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version.major=2
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version.minor=0
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version.patch=0
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```
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- [View Examples](https://github.com/rife2/bld-property-file/tree/master/examples)
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## Property File
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The `PropertyFileOperation` class is used to configure the [properties file](https://docs.oracle.com/javase/tutorial/essential/environment/properties.html) location, etc.
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| Attribute | Description | Required |
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|:----------------|:-----------------------------------------------------------------|:---------|
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| `file` | The location of the properties files to modify. | Yes |
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| `comment` | Comment to be inserted at the top of the properties file. | No |
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| `failOnWarning` | If set to `true`, will cause executiion to fail on any warnings. | No |
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## Entry
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The `Entry` class is used to specify modifications to be made to the [properties file](https://docs.oracle.com/javase/tutorial/essential/environment/properties.html).
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| Attribute | Description |
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|:---------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `key` | The name of the property name/value pair. |
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| `value` | The value of the property. |
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| `defaultVlaue` | The initial value to set for the property if not already defined. For `Type.DATE`, the `now` keyword can be used. |
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| `type` | Tread the value as `Types.INT`, `Types.DATE`, or `Types.STRING`. If none specified, `Types.STRING` is assumed. |
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| `operation` | See [operations](#operations). |
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| `pattern` | For `Types.INT` and `Types.DATE` only. If present, will parse the value as [DecimalFormat](https://docs.oracle.com/javase/7/docs/api/java/text/DecimalFormat.html) or [SimpleDateFormat](https://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html) patterns, respectively. |
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| `unit` | The unit value to be applied to `Operations.ADD` and `Operations.SUBTRACT` for `Types.DATE`. See [Units](#units). |
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`key` is required. `value` or `defaultValue` are required unless the `operation` is `Operations.DELETE`.
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## Operations
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The following operations are available:
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| Operation | Description |
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|:-----------------------|:--------------------------------------------------------------------------|
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| `Operations.ADD` | Adds a value to an entry. |
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| `Operations.DELETE` | Deletes an entry. |
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| `Operations.SET` | Sets the entry value. This is the default operation. |
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| `Operations.SUBTRACT` | Subtracts a value from the entry. For `Types.INT` and `Types.DATE` only. |
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## Units
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The following units are available for `Types.DATE` with `Operations.ADD` and `Operations.SUBTRACT`:
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* `Units.MILLISECOND`
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* `Units.SECOND`
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* `Units.MINUTE`
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* `Units.HOUR`
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* `Units.DAY`
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* `Units.WEEK`
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* `Units.MONTH`
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* `Units.YEAR`
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## Rules
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The rules used when setting a property value are:
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* If only `value` is specified, the property is set to it regardless of its previous value.
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* If only `defaultValue` is specified and the property previously existed, it is unchanged.
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* If only `defaultValue` is specified and the property did not exist, the property is set to `defaultValue`.
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* If `value` and `defaultValue` are both specified and the property previously existed, the property is set to `value`.
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* If `value` and `defaultValue` are both specified and the property did not exist, the property is set to `defaultValue`.
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Operations occur after the rules are evaluated.
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## Differences with the [ant PropertyFile task](https://ant.apache.org/manual/Tasks/propertyfile.html)
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* The comments and layout of the original property file will not be preserved.
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* The `jdkproperties` parameter is not implemented.
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* The default `Types.DATE` pattern is `yyyy-MM-dd HH:mm` and not `yyyy/MM/dd HH:mm`. |