JAVA_build_ant_FixCRLF
Description
Adjusts a text file to local conventions.
The set of files to be adjusted can be refined with the includes, includesfile, excludes, excludesfile and defaultexcludes attributes. Patterns provided through the includes or includesfile attributes specify files to be included. Patterns provided through the exclude or excludesfile attribute specify files to be excluded. Additionally, default exclusions can be specified with the defaultexcludes attribute. See the section on directory-based tasks, for details of file inclusion/exclusion patterns and their usage.
This task forms an implicit FileSet and supports most attributes of <fileset>
(dir
becomes srcdir
) as well as the nested <include>
, <exclude>
and <patternset>
elements.
The output file is only written if it is a new file, or if it differs from the existing file. This prevents spurious rebuilds based on unchanged files which have been regenerated by this task.
Since Apache Ant 1.7, this task can be used in a filterchain.
Parameters
Attribute | Description | Required | |
As Task | As Filter | ||
srcDir | Where to find the files to be fixed up. | One of these | |
file | Name of a single file to fix. Since Ant 1.7 | ||
destDir | Where to place the corrected files. Defaults to srcDir (replacing the original file). | No | |
includes | comma- or space-separated list of patterns of files that must be included. All files are included when omitted. | No | |
includesfile | the name of a file. Each line of this file is taken to be an include pattern. | No | |
excludes | comma- or space-separated list of patterns of files that must be excluded. No files (except default excludes) are excluded when omitted. | No | |
excludesfile | the name of a file. Each line of this file is taken to be an exclude pattern. | No | |
defaultexcludes | indicates whether default excludes should be used or not ("yes"/"no"). Default excludes are used when omitted. | No | |
encoding | The encoding of the files. | No; defaults to default JVM encoding. | |
outputencoding | The encoding to use when writing the files. Since Ant 1.7 | No; defaults to the value of the encoding attribute. | |
preservelastmodified | Whether to preserve the last modified date of source files. Since Ant 1.6.3 | No; default is false | |
eol | Specifies how end-of-line (EOL) characters are to be handled. The EOL characters are CR, LF and the pair CRLF. Valid values for this property are:
Default is based on the platform on which you are running this task. For Unix platforms (including Mac OS X), the default is "lf". For DOS-based systems (including Windows), the default is "crlf". For Mac environments other than OS X, the default is "cr". This is the preferred method for specifying EOL. The "cr" attribute (see below) is now deprecated. N.B.: One special case is recognized. The three characters CR-CR-LF are regarded as a single EOL. Unless this property is specified as "asis", this sequence will be converted into the specified EOL type. |
No | |
cr | Deprecated. Specifies how CR characters are to be handled at end-of-line (EOL). Valid values for this property are:
Default is based on the platform on which you are running this task. For Unix platforms, the default is "remove". For DOS based systems (including Windows), the default is "add". N.B.: One special case is recognized. The three characters CR-CR-LF are regarded as a single EOL. Unless this property is specified as "asis", this sequence will be converted into the specified EOL type. |
No | |
javafiles | Used only in association with the "tab" attribute (see below), this boolean attribute indicates whether the fileset is a set of java source files ("yes"/"no"). Defaults to "no". See notes in section on "tab". | No | |
tab | Specifies how tab characters are to be handled. Valid values for this property are:
Default for this parameter is "asis". N.B.: When the attribute "javafiles" (see above) is "true", literal TAB characters occurring within Java string or character constants are never modified. This functionality also requires the recognition of Java-style comments. N.B.: There is an incompatibility between this and the previous version in the handling of white space at the end of lines. This version does not remove trailing whitespace on lines. |
No | |
tablength | TAB character interval. Valid values are between 2 and 80 inclusive. The default for this parameter is 8. | No | |
eof | Specifies how DOS end of file (control-Z) characters are to be handled. Valid values for this property are:
Default is based on the platform on which you are running this task. For Unix platforms, the default is remove. For DOS based systems (including Windows), the default is asis. |
No | |
fixlast | Whether to add a missing EOL to the last line of a processed file. Ignored if EOL is asis. Since Ant 1.6.1 |
No; default is true |
Examples
<fixcrlf srcdir="${src}" includes="**/*.sh"
eol="lf" eof="remove" />
Replaces EOLs with LF characters and removes eof characters from the shell scripts. Tabs and spaces are left as is.
<fixcrlf srcdir="${src}"
includes="**/*.bat" eol="crlf" />
Replaces all EOLs with cr-lf pairs in the batch files. Tabs and spaces are left as is. EOF characters are left alone if run on DOS systems, and are removed if run on Unix systems.
<fixcrlf srcdir="${src}"
includes="**/Makefile" tab="add" />
Sets EOLs according to local OS conventions, and converts sequences of spaces and tabs to the minimal set of spaces and tabs which will maintain spacing within the line. Tabs are set at 8 character intervals. EOF characters are left alone if run on DOS systems, and are removed if run on Unix systems. Many versions of make require tabs prior to commands.
<fixcrlf srcdir="${src}" includes="**/*.java"
tab="remove" tablength="3"
eol="lf" javafiles="yes" />
Converts all EOLs in the included java source files to a single LF. Replace all TAB characters except those in string or character constants with spaces, assuming a tab width of 3. If run on a unix system, any CTRL-Z EOF characters at the end of the file are removed. On DOS/Windows, any such EOF characters will be left untouched.
<fixcrlf srcdir="${src}"
includes="**/README*" tab="remove" />
Sets EOLs according to local OS conventions, and converts all tabs to spaces, assuming a tab width of 8. EOF characters are left alone if run on DOS systems, and are removed if run on Unix systems. You never know what editor a user will use to browse READMEs.
refer : https://ant.apache.org/manual/Tasks/fixcrlf.html / http://sepp.oetiker.ch/ant-1.6.5-rp/manual/api/org/apache/tools/ant/taskdefs/FixCRLF.html
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