mirror of https://github.com/apache/ant-ivy
152 lines
5.9 KiB
HTML
152 lines
5.9 KiB
HTML
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<html>
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<head>
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<script type="text/javascript">var xookiConfig = {level: 1};</script>
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<script type="text/javascript" src="../xooki/xooki.js"></script>
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<body>
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<textarea id="xooki-source">
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<b>Tag:</b> macrodef
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<span class="tagdoc" id="ivysettings.macrodef">Defines a new dependency resolver type based upon an other one.</span> This definition is very similar to the macrodef feature of ant for defining macro tasks. <span class="since">since 1.3</span>
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This task eases the lot the process of creating new dependency resolver, because it avoid writing java code.
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It is generally used in combination with the [[settings/include]] feature to help reusing macro at several places.
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A macro is defined by writing the resolver it is equivalent to as if it were written in the resolver place, except that you can use attributes to pass parameters to the newly defined resolver type. Attributes are defined with a name and sometimes a default value, and are used using the following syntax:
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<code>@{attributename}</code>
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<h2>Resolvers names</h2>
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Since you can use the same macro several times, and that your macro may define several resolvers (in a chain for instance), resolvers names need to be chosen carefully to avoid name conflicts (a resolver must have a unique name).
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Therefore here is how Ivy deals with the names of the resolvers defined in a macro:
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<ul>
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<li>if there is no name attribute on a resolver in the macrodef, then Ivy will use the name given when using the macro. This is what usually should be done for the main resolver defined in the macro</li>
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<li>if there is a name attribute on a resolver in the macrodef, but this name doesn't contain a @{name} inside, then Ivy will use the provided name prefixed with the name of the macro separated by a dash</li>
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<li>if there is a name attribute on a resolver in the macrodef, and this name contains @{name} somewhere, then Ivy will use this name, and replace @{name} with the name provided when using the macro.</li>
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</ul>
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Example:
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<code type="xml">
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<ivysettings>
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<macrodef name="mymacro">
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<chain>
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<ibiblio name="ex1" />
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<ibiblio name="ex2.@{name}" m2compatible="true" />
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</chain>
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</macrodef>
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<resolvers>
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<mymacro name="default" />
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<mymacro name="other" />
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</resolvers>
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</ivysettings>
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</code>
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This is equivalent to:
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<code type="xml">
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<ivysettings>
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<resolvers>
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<chain name="default">
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<ibiblio name="default-ex1" />
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<ibiblio name="ex2.default" m2compatible="true" />
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</chain>
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<chain name="other">
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<ibiblio name="other-ex1" />
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<ibiblio name="ex2.other" m2compatible="true" />
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</chain>
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</resolvers>
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</ivysettings>
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</code>
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<h1>Attributes</h1>
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<table class="ivy-attributes">
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<thead>
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<tr><th class="ivy-att">Attribute</th><th class="ivy-att-desc">Description</th><th class="ivy-att-req">Required</th></tr>
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</thead>
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<tbody>
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<tr><td>name</td><td>name of the resover type created</td>
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<td>Yes</td></tr>
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</tbody>
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</table>
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<h1>Child elements</h1>
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<table class="ivy-children">
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<thead>
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<tr><th class="ivy-chld">Element</th><th class="ivy-chld-desc">Description</th><th class="ivy-chld-card">Cardinality</th></tr>
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</thead>
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<tbody>
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<tr><td>[[settings/macrodef/attribute]]</td><td>defines an attribute for the macro resolver</td>
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<td>0..n</td></tr>
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<tr><td>any resolver</td><td>defines the base resolver upon which this macro is defined</td>
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<td>1</td></tr>
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</tbody>
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</table>
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<h1>Examples</h1>
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Defining a simple macro:
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<code type="xml">
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<macrodef name="mymacro">
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<attribute name="mymainrep"/>
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<filesystem name="fs1">
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<ivy pattern="@{mymainrep}/[organisation]/[module]/[type]s/[artifact]-[revision].[ext]"/>
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<artifact pattern="@{mymainrep}/[organisation]/[module]/[type]s/[artifact]-[revision].[ext]"/>
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</filesystem>
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</macrodef>
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</code>
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Using it:
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<code type="xml">
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<resolvers>
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<mymacro name="default" mymainrep="path/to/myrep"/>
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</resolvers>
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</code>
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<hr/>
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A complete example:
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<code type="xml">
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<ivysettings>
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<macrodef name="mymacro">
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<attribute name="mymainrep"/>
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<attribute name="mysecondrep"/>
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<attribute name="myseconddirlayout" default="[organisation]/[module]/[type]s"/>
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<chain>
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<filesystem name="fs1">
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<ivy pattern="@{mymainrep}/[organisation]/[module]/[type]s/[artifact]-[revision].[ext]"/>
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<artifact pattern="@{mymainrep}/[organisation]/[module]/[type]s/[artifact]-[revision].[ext]"/>
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</filesystem>
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<filesystem name="fs2" latest="latest-time">
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<ivy pattern="@{mysecondrep}/@{myseconddirlayout}/ivy-[revision].xml"/>
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<artifact pattern="@{mysecondrep}/@{myseconddirlayout}/[artifact]-[revision].[ext]"/>
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</filesystem>
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</chain>
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</macrodef>
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<resolvers>
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<mymacro name="default" mymainrep="path/to/myrep" mysecondrep="path/to/secondrep"/>
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<mymacro name="other"
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mymainrep="path/to/myrep"
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mysecondrep="path/to/secondrep"
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myseconddirlayout="[module]/[type]s"/>
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</resolvers>
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</ivysettings>
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</code>
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