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.TH "CLOSURE-COMPILER" 1 "2014-01-07" "" "Closure"
.SH NAME
closure-compiler \- optimising compiler for ECMAScript (JavaScript) programs
.SH SYNOPSIS
.nf
\fBclosure\-compiler\fP [ \fIOPTION\fP ... ]
\fBclosure\-compiler\fP \fB\-\-help\fP
.fi
.sp
.SH DESCRIPTION
.sp
The Closure Compiler Application is the command\-line interface to the
Closure Compiler, part of the Closure Tools project.
.sp
The Closure Compiler is a tool for making ECMAScript (JavaScript) download
and run faster. It parses your program, analyzes it, removes dead code, and
rewrites and minimizes what\(aqs left. It also checks syntax, variable
references, and types, and warns about common pitfalls.
.SH OPTIONS
.sp
\fB\-\-help\fP
.INDENT 0.0
.INDENT 3.5
Describe how to use the Closure Compiler Application.
.UNINDENT
.UNINDENT
.sp
\fB\-\-version\fP
.INDENT 0.0
.INDENT 3.5
Print the Closure Compiler version to stderr.
.UNINDENT
.UNINDENT
.sp
\fB\-\-accept_const_keyword\fP
.INDENT 0.0
.INDENT 3.5
Allow usage of const keyword.
.UNINDENT
.UNINDENT
.sp
\fB\-\-angular_pass\fP
.INDENT 0.0
.INDENT 3.5
Generate $inject properties for AngularJS for functions annotated with
\fB@ngInject\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-charset\fP \fICHARSET\fP
.INDENT 0.0
.INDENT 3.5
Specify \fICHARSET\fP to be the input and output charset for all files. By
default, we accept UTF\-8 as input and output US_ASCII.
.UNINDENT
.UNINDENT
.sp
\fB\-\-closure_entry_point\fP \fIENTRYPOINT\fP
.INDENT 0.0
.INDENT 3.5
Specify entry point \fIENTRYPOINT\fP to the program. Must be goog.provide\(aqd
symbols. Any goog.provide\(aqd symbols that are not a transitive
dependency of the entry points will be removed. Files without
goog.provides, and their dependencies, will always be left in. If any
entry points are specified, then the \fBmanage_closure_dependencies\fP
option will be set to true and all files will be sorted in dependency
order.
.UNINDENT
.UNINDENT
.sp
\fB\-\-common_js_entry_module\fP \fIMODULEFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify the root of your common JS dependency hierarchy to be
\fIMODULEFILE\fP\&. Your main script.
.UNINDENT
.UNINDENT
.sp
\fB\-\-common_js_module_path_prefix\fP \fIPREFIX\fP
.INDENT 0.0
.INDENT 3.5
Specify a path prefix \fIPREFIX\fP to be removed from CommonJS module
names.
.UNINDENT
.UNINDENT
.sp
\fB\-\-compilation_level\fP \fILEVEL\fP
.INDENT 0.0
.INDENT 3.5
Set the compilation level to \fILEVEL\fP\&.
.sp
Values: \fBWHITESPACE_ONLY\fP, \fBSIMPLE_OPTIMIZATIONS\fP,
\fBADVANCED_OPTIMIZATIONS\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-create_name_map_files\fP
.INDENT 0.0
.INDENT 3.5
Specify that variable renaming and property renaming map files will be
produced as {binary name}_vars_map.out and {binary name}_props_map.out.
.sp
Note that this flag cannot be used in conjunction with either
\fBvariable_map_output_file\fP or \fBproperty_map_output_file\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-create_source_map\fP \fIMAPFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify a source map file \fIMAPFILE\fP, mapping the generated source files
back to the original source file will be output to the specified path.
The \fB%outname%\fP placeholder will expand to the name of the output file
that the source map corresponds to.
.UNINDENT
.UNINDENT
.sp
\fB\-\-debug\fP
.INDENT 0.0
.INDENT 3.5
Enable debugging options.
.UNINDENT
.UNINDENT
.sp
\fB\-\-define\fP \fIDEFINITION\fP, \fB\-\-D\fP \fIDEFINITION\fP, \fB\-D\fP \fIDEFINITION\fP
.INDENT 0.0
.INDENT 3.5
Override the value of a variable annotated @define. The format of
\fIDEFINITION\fP is <name>[=<val>], where <name> is the name of a @define
variable and <val> is a boolean, number, or a single\-quot ed string
that contains no single quotes. If [=<val>] is omitted, the variable is
marked true.
.UNINDENT
.UNINDENT
.sp
\fB\-\-externs\fP \fIEXTERNFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify that the file \fIEXTERNFILE\fP contains JavaScript externs.
.sp
You may specify this option multiple times to specify additional
\fIEXTERNFILE\fP files.
.UNINDENT
.UNINDENT
.sp
\fB\-\-extra_annotation_name\fP \fITAGNAME\fP
.INDENT 0.0
.INDENT 3.5
Specify \fITAGNAME\fP to append to the whitelist of tag names in JSDoc.
.sp
You may specify this option multiple times to append additional
\fITAGNAME\fP values.
.UNINDENT
.UNINDENT
.sp
\fB\-\-flagfile\fP \fIFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify that \fIFILE\fP contains additional command\-line options.
.UNINDENT
.UNINDENT
.sp
\fB\-\-formatting\fP \fIFORMATOPTION\fP
.INDENT 0.0
.INDENT 3.5
Specifies the formatting option \fIFORMATOPTION\fP to apply to the output
JS.
.sp
Values: \fBPRETTY_PRINT\fP, \fBPRINT_INPUT_DELIMITER\fP, \fBSINGLE_QUOTES\fP
.UNINDENT
.UNINDENT
.sp
\fB\-\-generate_exports\fP
.INDENT 0.0
.INDENT 3.5
Generates export code for those marked with @export.
.UNINDENT
.UNINDENT
.sp
\fB\-\-js\fP \fIINFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify \fIINFILE\fP as an input filename.
.sp
You may specify this option multiple times to append additional
\fIINFILE\fP names.
.UNINDENT
.UNINDENT
.sp
\fB\-\-js_output_file\fP \fIOUTFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify \fIOUTFILE\fP as the primary output filename.
.sp
If not specified, output is written to stdout.
.UNINDENT
.UNINDENT
.sp
\fB\-\-jscomp_error\fP \fIWARNCLASS\fP
.INDENT 0.0
.INDENT 3.5
Make the named class of warnings \fIWARNCLASS\fP an error.
.sp
See \fI\%Warning Classes\fP, below, for the list of valid \fIWARNCLASS\fP names.
.UNINDENT
.UNINDENT
.sp
\fB\-\-jscomp_off\fP \fIWARNCLASS\fP
.INDENT 0.0
.INDENT 3.5
Turn off the named class of warnings \fIWARNCLASS\fP\&.
.sp
See \fI\%Warning Classes\fP, below, for the list of valid \fIWARNCLASS\fP names.
.UNINDENT
.UNINDENT
.sp
\fB\-\-jscomp_warning\fP \fIWARNCLASS\fP
.INDENT 0.0
.INDENT 3.5
Make the named class of warnings \fIWARNCLASS\fP a normal warning.
.sp
See \fI\%Warning Classes\fP, below, for the list of valid \fIWARNCLASS\fP names.
.UNINDENT
.UNINDENT
.sp
\fB\-\-language_in\fP \fILANGSPEC\fP
.INDENT 0.0
.INDENT 3.5
Specify the input sources conform to the language \fILANGSPEC\fP\&.
.sp
Values: \fBECMASCRIPT3\fP (default), \fBECMASCRIPT5\fP,
\fBECMASCRIPT5_STRICT\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-logging_level\fP \fILEVEL\fP
.INDENT 0.0
.INDENT 3.5
Specify \fILEVEL\fP as the logging level (standard java.util. logging.Level
values) for Compiler progress. Does not control errors or warnings for
the JavaScript code under compilation.
.UNINDENT
.UNINDENT
.sp
\fB\-\-manage_closure_dependencies\fP
.INDENT 0.0
.INDENT 3.5
Automatically sort dependencies so that a file that goog.provides
symbol X will always come before a file that goog.requires symbol X. If
an input provides symbols, and those symbols are never required, then
that input will not be included in the compilation.
.UNINDENT
.UNINDENT
.sp
\fB\-\-module\fP \fIMODULESPEC\fP
.INDENT 0.0
.INDENT 3.5
Specify the JavaScript module specification \fIMODULESPEC\fP\&.
.sp
The format for \fIMODULESPEC\fP is <name>:<num\-js\-files>[:[<dep>,...][:]]].
Module names must be unique. Each dep is the name of a module that this
module depends on. Modules must be listed in dependency order, and JS
source files must be listed in the corresponding order. Where
\fB\-\-module\fP flags occur in relation to \fB\-\-js\fP flags is unimportant.
Provide the value \fBauto\fP to trigger module creation from
CommonJSmodules.
.UNINDENT
.UNINDENT
.sp
\fB\-\-module_output_path_prefix\fP \fIPREFIX\fP
.INDENT 0.0
.INDENT 3.5
Specify the filename prefix \fIPREFIX\fP for filenames of compiled JS
modules. <module\-name>.js will be appended to this prefix. Directories
will be created as needed. Use with \fB\-\-module\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-module_wrapper\fP \fIWRAPPER\fP
.INDENT 0.0
.INDENT 3.5
Specify \fIWRAPPER\fP as output wrapper for a JavaScript module (optional).
.sp
The format of \fIWRAPPER\fP is <name>:<wrapper>. The module name must
correspond with a module specified using \fB\-\-module\fP\&. The wrapper must
contain %s as the code placeholder. The %basename% placeholder can also
be used to substitute the base name of the module output file.
.UNINDENT
.UNINDENT
.sp
\fB\-\-only_closure_dependencies\fP
.INDENT 0.0
.INDENT 3.5
Only include files in the transitive dependency of the entry points
(specified by closure_entry_point). Files that do not provide
dependencies will be removed. This supersedes
\fBmanage_closure_dependencies\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-output_manifest\fP \fIMANIFESTFILE\fP
.INDENT 0.0
.INDENT 3.5
Prints out a list of all the files in the compilation to
\fIMANIFESTFILE\fP\&.
.sp
If \fB\-\-manage_closure_dependencies\fP is on, this will not include files
that got dropped because they were not required.
.sp
The \fB%outname%\fP placeholder expands to the JS output file. If you\(aqre
using modularization, using \fB%outname%\fP will create a manifest for
each module.
.UNINDENT
.UNINDENT
.sp
\fB\-\-output_module_dependencies\fP \fIDEPFILE\fP
.INDENT 0.0
.INDENT 3.5
Prints out a JSON file \fIDEPFILE\fP of dependencies between modules.
.UNINDENT
.UNINDENT
.sp
\fB\-\-output_wrapper\fP \fIWRAPPER\fP
.INDENT 0.0
.INDENT 3.5
Interpolate output into \fIWRAPPER\fP at the place denoted by the marker
token \fB%output%\fP\&. Use marker token \fB%output|jsstring%\fP to do js
string escaping on the output.
.UNINDENT
.UNINDENT
.sp
\fB\-\-print_ast\fP
.INDENT 0.0
.INDENT 3.5
Print a dot file describing the internal abstract syntax tree and exit.
.UNINDENT
.UNINDENT
.sp
\fB\-\-print_pass_graph\fP
.INDENT 0.0
.INDENT 3.5
Print a dot file describing the passes that will get run and exit.
.UNINDENT
.UNINDENT
.sp
\fB\-\-print_tree\fP
.INDENT 0.0
.INDENT 3.5
Print out the parse tree and exit.
.UNINDENT
.UNINDENT
.sp
\fB\-\-process_closure_primitives\fP
.INDENT 0.0
.INDENT 3.5
Processes built\-ins from the Closure library, such as goog.require(),
goog.provide(), and goog.exportSymbol().
.UNINDENT
.UNINDENT
.sp
\fB\-\-process_common_js_modules\fP
.INDENT 0.0
.INDENT 3.5
Process CommonJS modules to a concatenable form.
.UNINDENT
.UNINDENT
.sp
\fB\-\-process_jquery_primitives\fP
.INDENT 0.0
.INDENT 3.5
Processes built\-ins from the JQuery library, such as jQuery.fn and
jQuery.extend().
.UNINDENT
.UNINDENT
.sp
\fB\-\-property_map_input_file\fP \fIMAPFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify \fIMAPFILE\fP as containing the serialized version of the property
renaming map produced by a previous compilation.
.UNINDENT
.UNINDENT
.sp
\fB\-\-property_map_output_file\fP \fIMAPFILE\fP
.INDENT 0.0
.INDENT 3.5
Save the serialized version of the property renaming map produced to
\fIMAPFILE\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-source_map_format\fP \fIFORMAT\fP
.INDENT 0.0
.INDENT 3.5
Product the source map in format \fIFORMAT\fP\&.
.sp
Values: \fBV1\fP, \fBV2\fP, \fBV3\fP, \fBDEFAULT\fP\&. \fBDEFAULT\fP produces
\fBV2\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-summary_detail_level\fP \fILEVEL\fP
.INDENT 0.0
.INDENT 3.5
Specify the compilation summary detail level \fILEVEL\fP\&.
.sp
Values: \fB0\fP (never print summary), \fB1\fP (print summary only if there
are errors or warnings), \fB2\fP (print summary if the \(aqcheckTypes\(aq
diagnostic group is enabled, see \fB\-\-jscomp_warning\fP), \fB3\fP (always
print summary). The default level is \fB1\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-third_party\fP
.INDENT 0.0
.INDENT 3.5
Check source validity but do not enforce Closure style rules and
conventions.
.UNINDENT
.UNINDENT
.sp
\fB\-\-transform_amd_modules\fP
.INDENT 0.0
.INDENT 3.5
Transform AMD to CommonJS modules.
.UNINDENT
.UNINDENT
.sp
\fB\-\-translations_file\fP \fITRANSFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify \fITRANSFILE\fP as the source of translated messages. Currently
only supports XTB.
.UNINDENT
.UNINDENT
.sp
\fB\-\-translations_project\fP \fIPROJECT\fP
.INDENT 0.0
.INDENT 3.5
Scope all translations to the specified project.
.sp
When specified, use different message ids so that messages in different
projects can have different translations.
.UNINDENT
.UNINDENT
.sp
\fB\-\-use_only_custom_externs\fP
.INDENT 0.0
.INDENT 3.5
Specifies that the default externs should be excluded.
.UNINDENT
.UNINDENT
.sp
\fB\-\-use_types_for_optimization\fP
.INDENT 0.0
.INDENT 3.5
Experimental: perform additional optimizations based on available
information. Inaccurate type annotations may result in incorrect
results.
.UNINDENT
.UNINDENT
.sp
\fB\-\-variable_map_input_file\fP \fIMAPFILE\fP
.INDENT 0.0
.INDENT 3.5
Specify \fIMAPFILE\fP as containing the serialized version of the variable
renaming map produced by a previous compilation.
.UNINDENT
.UNINDENT
.sp
\fB\-\-variable_map_output_file\fP \fIMAPFILE\fP
.INDENT 0.0
.INDENT 3.5
Save the serialized version of the variable renaming map produced to
\fIMAPFILE\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-warning_level\fP \fILEVEL\fP
.INDENT 0.0
.INDENT 3.5
Specify the warning level to use.
.sp
Values: \fBQUIET\fP, \fBDEFAULT\fP, \fBVERBOSE\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB\-\-warnings_whitelist_file\fP \fILISTFILE\fP
.INDENT 0.0
.INDENT 3.5
Suppress warnings listed in \fILISTFILE\fP\&. Each line should be of the form
<file\-name>:<line\-number>? <warning\-d escription>
.UNINDENT
.UNINDENT
.SS Warning Classes
.sp
The \fBjscomp_error\fP, \fBjscomp_warning\fP, and \fBjscomp_off\fP flags
require as a parameter a \fIWARNCLASS\fP warning class name. The following
names are valid warning class names:
.INDENT 0.0
.IP \(bu 2
\fBaccessControls\fP
.IP \(bu 2
\fBambiguousFunctionDecl\fP
.IP \(bu 2
\fBcheckRegExp\fP
.IP \(bu 2
\fBcheckTypes\fP
.IP \(bu 2
\fBcheckVars\fP
.IP \(bu 2
\fBconst\fP
.IP \(bu 2
\fBconstantProperty\fP
.IP \(bu 2
\fBdeprecated\fP
.IP \(bu 2
\fBduplicateMessage\fP
.IP \(bu 2
\fBes5Strict\fP
.IP \(bu 2
\fBexternsValidation\fP
.IP \(bu 2
\fBfileoverviewTags\fP
.IP \(bu 2
\fBglobalThis\fP
.IP \(bu 2
\fBinternetExplorerChecks\fP
.IP \(bu 2
\fBinvalidCasts\fP
.IP \(bu 2
\fBmisplacedTypeAnnotation\fP
.IP \(bu 2
\fBmissingProperties\fP
.IP \(bu 2
\fBnonStandardJsDocs\fP
.IP \(bu 2
\fBsuspiciousCode\fP
.IP \(bu 2
\fBstrictModuleDepCheck\fP
.IP \(bu 2
\fBtypeInvalidation\fP
.IP \(bu 2
\fBundefinedNames\fP
.IP \(bu 2
\fBundefinedVars\fP
.IP \(bu 2
\fBunknownDefines\fP
.IP \(bu 2
\fBuselessCode\fP
.IP \(bu 2
\fBvisibility\fP
.UNINDENT
.SH EXAMPLE
.INDENT 0.0
.IP \(bu 2
.nf
\fBclosure\-compiler\fP \-\-js hello.js \-\-js_output_file hello\-compiled.js
.fi
.sp
.sp
This command creates a new file called \fBhello\-compiled.js\fP, which
contains the compiled program.
.UNINDENT
.SH HISTORY
.sp
The Closure Tools project is an effort by Google engineers to open source
the tools used in many of Google\(aqs sites and web applications for use by
the wider Web development community.
.sp
This manual page was written by Ben Finney <\fI\%ben+ecmascript@benfinney.id.au\fP> to document the \fBclosure\-compiler\fP command
for Debian. It is free software and may be used by others under the terms
of the Apache license, version 2.0\&.
.\" Local variables:
.\" mode: rst
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.
.SH AUTHOR
Ben Finney <ben+ecmascript@benfinney.id.au>
.SH COPYRIGHT
Apache license, version 2.0.
.\" Generated by docutils manpage writer.
.