Synopsis

ceylon compile [--auto-export-maven-dependencies] [--cacherep=<url>] [--cwd=<dir>] [--encoding=<encoding>] [--flat-classpath] [--generate-module-info] [--javac=<option>...] [--maven-overrides=<url>] [--no-default-repositories] [--no-osgi] [--no-pom] [--offline] [--osgi-provided-bundles=<modules>] [--out=<url>] [--overrides=<url>] [--pack200] [--pass=<secret>] [--progress] [--rep=<url>...] [--resource=<dirs>...] [--resource-root=<folder-name>] [--source=<dirs>...] [--src=<dirs>...] [--suppress-warning[=<warnings>...]] [--sysrep=<url>] [--timeout=<seconds>] [--user=<name>] [--verbose[=<flags>]] [--] [<moduleOrFile...>]

Description

The default module repositories are modules and https://modules.ceylon-lang.org/repo/1, while the default source directory is source and the default resource directory is resource. The default output module repository is modules.

The <moduleOrFile> arguments can be either module names (without versions) or file paths specifying the Ceylon or Java source code to compile.

When <moduleOrFile> specifies a module the compiler searches for compilation units and resource files belonging to the specified modules in the specified source and resource directories. For each specified module, the compiler generates a module archive, source archive, and their checksum files in the specified output module repository.

When <moduleOrFile> specifies a source file only that file is compiled and the module archive is created or updated with the .class files produced. The source file path is treated as relative to the current directory (it still needs to be located either in the default source folder or in any folder defined by the configuration file or --source options!).

When <moduleOrFile> specifies a resource file only that file is added to the module archive. The resource file path is treated as relative to the current directory (it still needs to be located either in the default resource folder or in any folder defined by the configuration file or --resource options!).

All program elements imported by a compilation unit must belong to the same module as the compilation unit, or must belong to a module that is explicitly imported in the module descriptor.

The compiler searches for dependencies in the following locations:

  • module archives in the specified repositories,
  • source archives in the specified repositories, and
  • module directories in the specified source directories.

Options

--auto-export-maven-dependencies

When using JBoss Modules (the default), treats all module dependencies between Maven modules as shared.

--cacherep=url

Specifies the folder to use for caching downloaded modules. (default: ~/.ceylon/cache)

--cwd=dir

Specifies the current working directory for this tool. (default: the directory where the tool is run from)

--encoding=encoding, -E encoding

Sets the encoding used for reading source files(default: platform-specific).

--flat-classpath

Launches the Ceylon module using a flat classpath.

--generate-module-info

Generate Java 9 (Jigsaw) module-info.class module descriptor in the generated Ceylon archive.

--javac=option

Passes an option to the underlying java compiler.

--maven-overrides=url

Specifies the XML file to use to load Maven artifact overrides. See http://ceylon-lang.org/documentation/current/reference/repository/maven/ for information. Deprecated: use --overrides.

--no-default-repositories

Indicates that the default repositories should not be used.

--no-osgi

Indicates that the generated car file should not contain OSGi module declarations.

--no-pom

Indicates that the generated car file should not contain Maven POM module declarations.

--offline, -L

Enables offline mode that will prevent connections to remote repositories.

--osgi-provided-bundles=modules

Comma-separated list of module names. The listed modules are expected to be OSGI bundles provided by the framework, and will be omitted from the generated MANIFEST 'Required-Bundle' OSGI header.

--out=url, -o url

Specifies the output module repository (which must be publishable). (default: ./modules)

--overrides=url

Specifies the XML file to use to load module overrides. See http://ceylon-lang.org/documentation/current/reference/repository/maven/ for information. Experimental.

--pack200

Try to make the generated car file smaller by repacking it using pack200.

--pass=secret

Sets the password for use with an authenticated output repository (no default).

--progress

Print progress information.

--rep=url

Specifies a module repository containing dependencies. Can be specified multiple times. (default: modules, ~/.ceylon/repo, https://modules.ceylon-lang.org/repo/1)

--resource=dirs, -r dirs

Path to directory containing resource files. Can be specified multiple times; you can also specify several paths separated by your operating system's PATH separator. (default: ./resource)

--resource-root=folder-name, -R folder-name

Sets the special resource folder name whose files will end up in the root of the resulting module CAR file (default: ROOT).

--source=dirs

An alias for --src (default: ./source)

--src=dirs, -s dirs

Path to directory containing source files. Can be specified multiple times; you can also specify several paths separated by your operating system's PATH separator. (default: ./source)

--suppress-warning[=warnings], -W

Suppress the reporting of the given warnings. If no warnings are given then suppresss the reporting of all warnings, otherwise just suppresss those which are present. Allowed flags include: filenameNonAscii, filenameCaselessCollision, deprecation, compilerAnnotation, doclink, expressionTypeNothing, unusedDeclaration, unusedImport, ceylonNamespace, javaNamespace, suppressedAlready, suppressesNothing, unknownWarning, ambiguousAnnotation, similarModule, importsOtherJdk, javaAnnotationElement.

--sysrep=url

Specifies the system repository containing essential modules. (default: $CEYLON_HOME/repo)

--timeout=seconds, -T seconds

Sets the timeout for connections to remote repositories, use 0 for no timeout (default: 20).

--user=name

Sets the user name for use with an authenticated output repository (no default).

--verbose[=flags], -d

Produce verbose output. If no flags are given then be verbose about everything, otherwise just be verbose about the flags which are present. Allowed flags include: all, loader, ast, code, cmr, benchmark.

Configuration file

The compile tool accepts the following options from the Ceylon configuration file: defaults.offline, defaults.encoding, compiler.source, compiler.resource and repositories (the equivalent options on the command line always have precedence).

Repositories

Repositories like those specified with the --rep or --out options can be file paths, HTTP urls to remote servers or can be names of repositories when prepended with a + symbol. These names refer to repositories defined in the configuration file or can be any of the following predefined names +SYSTEM, +CACHE, +LOCAL, +USER, +REMOTE or +MAVEN. For more information see http://ceylon-lang.org/documentation/1.2/reference/repository/tools

Specifying javac options

It is possible to pass options to the javac compiler by prefixing them with --javac= and separating the javac option from its argument (if any) using another =. For example:

  • The option --javac=-target=1.6 is equivalent to javac's -target 1.6 and,
  • the option --javac=-g:none is equivalent to javac's -g:none

Execute ceylon compile --javac=-help for a list of the standard javac options, and ceylon compile --javac=-X for a list of the non-standard javac options.

Important note: There is no guarantee that any particular javac option or combination of options will work, or continue to work in future releases.