Class PathUtil
- java.lang.Object
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- com.google.javascript.jscomp.deps.PathUtil
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public final class PathUtil extends java.lang.Object
Utility methods for manipulation of UNIX-like paths. TODO(tbreisacher): We can probably nuke this entire class and replace it with https://docs.oracle.com/javase/8/docs/api/java/nio/file/Path.html
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.lang.String
collapseDots(java.lang.String path)
Removes all ../ and ./ entries from within the given path.static java.lang.String
makeAbsolute(java.lang.String path)
Converts the given path into an absolute one.static java.lang.String
makeAbsolute(java.lang.String path, java.lang.String rootPath)
Converts the given path into an absolute one.static java.lang.String
makeRelative(java.lang.String basePath, java.lang.String targetPath)
Returns targetPath relative to basePath.
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Method Detail
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collapseDots
public static java.lang.String collapseDots(java.lang.String path)
Removes all ../ and ./ entries from within the given path. If there are extra ..s that move beyond the first directory given, they are removed. Examples: "a/b/../c" results in "a/c" "./foo/./../bar" results in "bar" "a/.." results in "" "a/../../foo" results in "foo"- Parameters:
path
- The path to remove dots from.- Returns:
- The path with all dots collapsed.
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makeAbsolute
public static java.lang.String makeAbsolute(java.lang.String path)
Converts the given path into an absolute one. This prepends the current working directory and removes all .'s from the path. If an absolute path is given, it will not be prefixed.Unlike File.getAbsolutePath(), this function does remove .'s from the path and unlike File.getCanonicalPath(), this function does not resolve symlinks and does not use filesystem calls.
- Parameters:
path
- The path to make absolute.- Returns:
- The path made absolute.
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makeAbsolute
public static java.lang.String makeAbsolute(java.lang.String path, java.lang.String rootPath)
Converts the given path into an absolute one. This prepends the given rootPath and removes all .'s from the path. If an absolute path is given, it will not be prefixed.Unlike File.getAbsolutePath(), this function does remove .'s from the path and unlike File.getCanonicalPath(), this function does not resolve symlinks and does not use filesystem calls.
- Parameters:
rootPath
- The path to prefix to path if path is not already absolute.path
- The path to make absolute.- Returns:
- The path made absolute.
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makeRelative
public static java.lang.String makeRelative(java.lang.String basePath, java.lang.String targetPath)
Returns targetPath relative to basePath.basePath and targetPath must either both be relative, or both be absolute paths.
This function is different from makeRelative in that it is able to add in ../ components and collapse existing ones as well.
Examples: base="some/relative/path" target="some/relative/path/foo" return="foo" base="some/relative/path" target="some/relative" return=".." base="some/relative/path" target="foo/bar" return="../../../foo/bar" base="/some/abs/path" target="/foo/bar" return="../../../foo/bar"- Parameters:
basePath
- The path to make targetPath relative to.targetPath
- The path to make relative.- Returns:
- A path relative to targetPath. The returned value will never start with a slash.
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