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343 lines
18 KiB
Markdown
343 lines
18 KiB
Markdown
# upath v1.2.0
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[](https://travis-ci.org/anodynos/upath)
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[](https://david-dm.org/anodynos/upath)
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A drop-in replacement / proxy to nodejs's `path` that:
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* Replaces the windows `\` with the unix `/` in all string params & results. This has significant positives - see below.
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* Adds **filename extensions** functions `addExt`, `trimExt`, `removeExt`, `changeExt`, and `defaultExt`.
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* Add a `normalizeSafe` function to preserve any meaningful leading `./` & a `normalizeTrim` which additionally trims any useless ending `/`.
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* Plus a helper `toUnix` that simply converts `\` to `/` and consolidates duplicates.
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**Useful note: these docs are actually auto generated from [specs](https://github.com/anodynos/upath/blob/master/source/spec/upath-spec.coffee), running on Linux.**
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Notes:
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* `upath.sep` is set to `'/'` for seamless replacement (as of 1.0.3).
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* upath has no runtime dependencies, except built-in `path` (as of 1.0.4)
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* travis-ci tested in node versions 4 to 12
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## Why ?
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Normal `path` doesn't convert paths to a unified format (ie `/`) before calculating paths (`normalize`, `join`), which can lead to numerous problems.
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Also path joining, normalization etc on the two formats is not consistent, depending on where it runs. Running `path` on Windows yields different results than when it runs on Linux / Mac.
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In general, if you code your paths logic while developing on Unix/Mac and it runs on Windows, you may run into problems when using `path`.
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Note that using **Unix `/` on Windows** works perfectly inside nodejs (and other languages), so there's no reason to stick to the Windows legacy at all.
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##### Examples / specs
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Check out the different (improved) behavior to vanilla `path`:
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`upath.normalize(path)` --returns-->
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✓ `'c:/windows/nodejs/path'` ---> `'c:/windows/nodejs/path'` // equal to `path.normalize()`
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✓ `'c:/windows/../nodejs/path'` ---> `'c:/nodejs/path'` // equal to `path.normalize()`
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✓ `'c:\\windows\\nodejs\\path'` ---> `'c:/windows/nodejs/path'` // `path.normalize()` gives `'c:\windows\nodejs\path'`
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✓ `'c:\\windows\\..\\nodejs\\path'` ---> `'c:/nodejs/path'` // `path.normalize()` gives `'c:\windows\..\nodejs\path'`
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✓ `'//windows\\unix/mixed'` ---> `'/windows/unix/mixed'` // `path.normalize()` gives `'/windows\unix/mixed'`
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✓ `'\\windows//unix/mixed'` ---> `'/windows/unix/mixed'` // `path.normalize()` gives `'\windows/unix/mixed'`
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✓ `'////\\windows\\..\\unix/mixed/'` ---> `'/unix/mixed/'` // `path.normalize()` gives `'/\windows\..\unix/mixed/'`
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Joining paths can also be a problem:
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`upath.join(paths...)` --returns-->
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✓ `'some/nodejs/deep', '../path'` ---> `'some/nodejs/path'` // equal to `path.join()`
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✓ `'some/nodejs\\windows', '../path'` ---> `'some/nodejs/path'` // `path.join()` gives `'some/path'`
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✓ `'some\\windows\\only', '..\\path'` ---> `'some/windows/path'` // `path.join()` gives `'some\windows\only/..\path'`
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Parsing with `path.parse()` should also be consistent across OSes:
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`upath.parse(path)` --returns-->
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✓ `'c:\Windows\Directory\somefile.ext'` ---> `{ root: '', dir: 'c:/Windows/Directory', base: 'somefile.ext', ext: '.ext', name: 'somefile' }`
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// `path.parse()` gives `'{ root: '', dir: '', base: 'c:\\Windows\\Directory\\somefile.ext', ext: '.ext', name: 'c:\\Windows\\Directory\\somefile' }'`
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✓ `'/root/of/unix/somefile.ext'` ---> `{ root: '/', dir: '/root/of/unix', base: 'somefile.ext', ext: '.ext', name: 'somefile' }` // equal to `path.parse()`
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## Added functions
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#### `upath.toUnix(path)`
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Just converts all `` to `/` and consolidates duplicates, without performing any normalization.
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##### Examples / specs
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`upath.toUnix(path)` --returns-->
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✓ `'.//windows\//unix//mixed////'` ---> `'./windows/unix/mixed/'`
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✓ `'..///windows\..\\unix/mixed'` ---> `'../windows/../unix/mixed'`
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#### `upath.normalizeSafe(path)`
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Exactly like `path.normalize(path)`, but it keeps the first meaningful `./`.
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Note that the unix `/` is returned everywhere, so windows `\` is always converted to unix `/`.
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##### Examples / specs & how it differs from vanilla `path`
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`upath.normalizeSafe(path)` --returns-->
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✓ `''` ---> `'.'` // equal to `path.normalize()`
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✓ `'.'` ---> `'.'` // equal to `path.normalize()`
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✓ `'./'` ---> `'./'` // equal to `path.normalize()`
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✓ `'.//'` ---> `'./'` // equal to `path.normalize()`
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✓ `'.\\'` ---> `'./'` // `path.normalize()` gives `'.\'`
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✓ `'.\\//'` ---> `'./'` // `path.normalize()` gives `'.\/'`
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✓ `'./..'` ---> `'..'` // equal to `path.normalize()`
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✓ `'.//..'` ---> `'..'` // equal to `path.normalize()`
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✓ `'./../'` ---> `'../'` // equal to `path.normalize()`
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✓ `'.\\..\\'` ---> `'../'` // `path.normalize()` gives `'.\..\'`
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✓ `'./../dep'` ---> `'../dep'` // equal to `path.normalize()`
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✓ `'../dep'` ---> `'../dep'` // equal to `path.normalize()`
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✓ `'../path/dep'` ---> `'../path/dep'` // equal to `path.normalize()`
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✓ `'../path/../dep'` ---> `'../dep'` // equal to `path.normalize()`
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✓ `'dep'` ---> `'dep'` // equal to `path.normalize()`
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✓ `'path//dep'` ---> `'path/dep'` // equal to `path.normalize()`
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✓ `'./dep'` ---> `'./dep'` // `path.normalize()` gives `'dep'`
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✓ `'./path/dep'` ---> `'./path/dep'` // `path.normalize()` gives `'path/dep'`
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✓ `'./path/../dep'` ---> `'./dep'` // `path.normalize()` gives `'dep'`
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✓ `'.//windows\\unix/mixed/'` ---> `'./windows/unix/mixed/'` // `path.normalize()` gives `'windows\unix/mixed/'`
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✓ `'..//windows\\unix/mixed'` ---> `'../windows/unix/mixed'` // `path.normalize()` gives `'../windows\unix/mixed'`
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✓ `'windows\\unix/mixed/'` ---> `'windows/unix/mixed/'` // `path.normalize()` gives `'windows\unix/mixed/'`
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✓ `'..//windows\\..\\unix/mixed'` ---> `'../unix/mixed'` // `path.normalize()` gives `'../windows\..\unix/mixed'`
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#### `upath.normalizeTrim(path)`
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Exactly like `path.normalizeSafe(path)`, but it trims any useless ending `/`.
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##### Examples / specs
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`upath.normalizeTrim(path)` --returns-->
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✓ `'./'` ---> `'.'` // `upath.normalizeSafe()` gives `'./'`
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✓ `'./../'` ---> `'..'` // `upath.normalizeSafe()` gives `'../'`
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✓ `'./../dep/'` ---> `'../dep'` // `upath.normalizeSafe()` gives `'../dep/'`
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✓ `'path//dep\\'` ---> `'path/dep'` // `upath.normalizeSafe()` gives `'path/dep/'`
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✓ `'.//windows\\unix/mixed/'` ---> `'./windows/unix/mixed'` // `upath.normalizeSafe()` gives `'./windows/unix/mixed/'`
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#### `upath.joinSafe([path1][, path2][, ...])`
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Exactly like `path.join()`, but it keeps the first meaningful `./`.
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Note that the unix `/` is returned everywhere, so windows `\` is always converted to unix `/`.
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##### Examples / specs & how it differs from vanilla `path`
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`upath.joinSafe(path)` --returns-->
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✓ `'some/nodejs/deep', '../path'` ---> `'some/nodejs/path'` // equal to `path.join()`
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✓ `'./some/local/unix/', '../path'` ---> `'./some/local/path'` // `path.join()` gives `'some/local/path'`
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✓ `'./some\\current\\mixed', '..\\path'` ---> `'./some/current/path'` // `path.join()` gives `'some\current\mixed/..\path'`
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✓ `'../some/relative/destination', '..\\path'` ---> `'../some/relative/path'` // `path.join()` gives `'../some/relative/destination/..\path'`
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## Added functions for *filename extension* manipulation.
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**Happy notes:**
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In all functions you can:
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* use both `.ext` & `ext` - the dot `.` on the extension is always adjusted correctly.
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* omit the `ext` param (pass null/undefined/empty string) and the common sense thing will happen.
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* ignore specific extensions from being considered as valid ones (eg `.min`, `.dev` `.aLongExtIsNotAnExt` etc), hence no trimming or replacement takes place on them.
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#### `upath.addExt(filename, [ext])`
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Adds `.ext` to `filename`, but only if it doesn't already have the exact extension.
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##### Examples / specs
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`upath.addExt(filename, 'js')` --returns-->
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✓ `'myfile/addExt'` ---> `'myfile/addExt.js'`
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✓ `'myfile/addExt.txt'` ---> `'myfile/addExt.txt.js'`
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✓ `'myfile/addExt.js'` ---> `'myfile/addExt.js'`
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✓ `'myfile/addExt.min.'` ---> `'myfile/addExt.min..js'`
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It adds nothing if no `ext` param is passed.
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`upath.addExt(filename)` --returns-->
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✓ `'myfile/addExt'` ---> `'myfile/addExt'`
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✓ `'myfile/addExt.txt'` ---> `'myfile/addExt.txt'`
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✓ `'myfile/addExt.js'` ---> `'myfile/addExt.js'`
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✓ `'myfile/addExt.min.'` ---> `'myfile/addExt.min.'`
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#### `upath.trimExt(filename, [ignoreExts], [maxSize=7])`
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Trims a filename's extension.
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* Extensions are considered to be up to `maxSize` chars long, counting the dot (defaults to 7).
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* An `Array` of `ignoreExts` (eg `['.min']`) prevents these from being considered as extension, thus are not trimmed.
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##### Examples / specs
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`upath.trimExt(filename)` --returns-->
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✓ `'my/trimedExt.txt'` ---> `'my/trimedExt'`
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✓ `'my/trimedExt'` ---> `'my/trimedExt'`
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✓ `'my/trimedExt.min'` ---> `'my/trimedExt'`
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✓ `'my/trimedExt.min.js'` ---> `'my/trimedExt.min'`
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✓ `'../my/trimedExt.longExt'` ---> `'../my/trimedExt.longExt'`
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It is ignoring `.min` & `.dev` as extensions, and considers exts with up to 8 chars.
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`upath.trimExt(filename, ['min', '.dev'], 8)` --returns-->
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✓ `'my/trimedExt.txt'` ---> `'my/trimedExt'`
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✓ `'my/trimedExt.min'` ---> `'my/trimedExt.min'`
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✓ `'my/trimedExt.dev'` ---> `'my/trimedExt.dev'`
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✓ `'../my/trimedExt.longExt'` ---> `'../my/trimedExt'`
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✓ `'../my/trimedExt.longRExt'` ---> `'../my/trimedExt.longRExt'`
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#### `upath.removeExt(filename, ext)`
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Removes the specific `ext` extension from filename, if it has it. Otherwise it leaves it as is.
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As in all upath functions, it be `.ext` or `ext`.
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##### Examples / specs
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`upath.removeExt(filename, '.js')` --returns-->
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✓ `'removedExt.js'` ---> `'removedExt'`
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✓ `'removedExt.txt.js'` ---> `'removedExt.txt'`
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✓ `'notRemoved.txt'` ---> `'notRemoved.txt'`
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It does not care about the length of exts.
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`upath.removeExt(filename, '.longExt')` --returns-->
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✓ `'removedExt.longExt'` ---> `'removedExt'`
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✓ `'removedExt.txt.longExt'` ---> `'removedExt.txt'`
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✓ `'notRemoved.txt'` ---> `'notRemoved.txt'`
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#### `upath.changeExt(filename, [ext], [ignoreExts], [maxSize=7])`
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Changes a filename's extension to `ext`. If it has no (valid) extension, it adds it.
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* Valid extensions are considered to be up to `maxSize` chars long, counting the dot (defaults to 7).
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* An `Array` of `ignoreExts` (eg `['.min']`) prevents these from being considered as extension, thus are not changed - the new extension is added instead.
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##### Examples / specs
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`upath.changeExt(filename, '.js')` --returns-->
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✓ `'my/module.min'` ---> `'my/module.js'`
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✓ `'my/module.coffee'` ---> `'my/module.js'`
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✓ `'my/module'` ---> `'my/module.js'`
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✓ `'file/withDot.'` ---> `'file/withDot.js'`
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✓ `'file/change.longExt'` ---> `'file/change.longExt.js'`
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If no `ext` param is given, it trims the current extension (if any).
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`upath.changeExt(filename)` --returns-->
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✓ `'my/module.min'` ---> `'my/module'`
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✓ `'my/module.coffee'` ---> `'my/module'`
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✓ `'my/module'` ---> `'my/module'`
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✓ `'file/withDot.'` ---> `'file/withDot'`
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✓ `'file/change.longExt'` ---> `'file/change.longExt'`
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It is ignoring `.min` & `.dev` as extensions, and considers exts with up to 8 chars.
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`upath.changeExt(filename, 'js', ['min', '.dev'], 8)` --returns-->
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✓ `'my/module.coffee'` ---> `'my/module.js'`
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✓ `'file/notValidExt.min'` ---> `'file/notValidExt.min.js'`
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✓ `'file/notValidExt.dev'` ---> `'file/notValidExt.dev.js'`
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✓ `'file/change.longExt'` ---> `'file/change.js'`
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✓ `'file/change.longRExt'` ---> `'file/change.longRExt.js'`
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#### `upath.defaultExt(filename, [ext], [ignoreExts], [maxSize=7])`
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Adds `.ext` to `filename`, only if it doesn't already have _any_ *old* extension.
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* (Old) extensions are considered to be up to `maxSize` chars long, counting the dot (defaults to 7).
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* An `Array` of `ignoreExts` (eg `['.min']`) will force adding default `.ext` even if one of these is present.
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##### Examples / specs
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`upath.defaultExt(filename, 'js')` --returns-->
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✓ `'fileWith/defaultExt'` ---> `'fileWith/defaultExt.js'`
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✓ `'fileWith/defaultExt.js'` ---> `'fileWith/defaultExt.js'`
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✓ `'fileWith/defaultExt.min'` ---> `'fileWith/defaultExt.min'`
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✓ `'fileWith/defaultExt.longExt'` ---> `'fileWith/defaultExt.longExt.js'`
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If no `ext` param is passed, it leaves filename intact.
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`upath.defaultExt(filename)` --returns-->
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✓ `'fileWith/defaultExt'` ---> `'fileWith/defaultExt'`
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✓ `'fileWith/defaultExt.js'` ---> `'fileWith/defaultExt.js'`
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✓ `'fileWith/defaultExt.min'` ---> `'fileWith/defaultExt.min'`
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✓ `'fileWith/defaultExt.longExt'` ---> `'fileWith/defaultExt.longExt'`
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It is ignoring `.min` & `.dev` as extensions, and considers exts with up to 8 chars.
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`upath.defaultExt(filename, 'js', ['min', '.dev'], 8)` --returns-->
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✓ `'fileWith/defaultExt'` ---> `'fileWith/defaultExt.js'`
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✓ `'fileWith/defaultExt.min'` ---> `'fileWith/defaultExt.min.js'`
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✓ `'fileWith/defaultExt.dev'` ---> `'fileWith/defaultExt.dev.js'`
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✓ `'fileWith/defaultExt.longExt'` ---> `'fileWith/defaultExt.longExt'`
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✓ `'fileWith/defaultExt.longRext'` ---> `'fileWith/defaultExt.longRext.js'`
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Copyright(c) 2014-2019 Angelos Pikoulas (agelos.pikoulas@gmail.com)
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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