Commitcf564b6

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RF: git-annex specific handling in to_filename + allow NIBABEL_REMOVE_BEFORE_TO_FILENAME env var

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Lines changed: 10 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -17,6 +17,14 @@`
`17`	`17`	`splitext_addext)`
`18`	`18`	`from .openersimportImageOpener`
`19`	`19`
	`20`	`+# OS-specific path`
	`21`	`+_GIT_ANNEX_OBJECTS_PATH=os.path.join('.git','annex','objects')`
	`22`	`+`
	`23`	`+`
	`24`	`+def_is_annex_symlink(path):`
	`25`	`+"""Return True if file is a symlink to the git-annex objects"""`
	`26`	`+returnos.path.islink(path)and_GIT_ANNEX_OBJECTS_PATHinos.path.realpath(path)`
	`27`	`+`
`20`	`28`
`21`	`29`	`classImageFileError(Exception):`
`22`	`30`	`pass`
`@@ -349,10 +357,11 @@ def to_filename(self, filename):`
`349`	`357`	`None`
`350`	`358`	`'''`
`351`	`359`	`self.file_map=file_map=self.filespec_to_file_map(filename)`
	`360`	`+remove_env=os.environ.get('NIBABEL_REMOVE_BEFORE_TO_FILENAME',None)`
`352`	`361`	`for_,fhinfile_map.items():`
`353`	`362`	`ifnotisinstance(fh,FileHolder):`
`354`	`363`	`continue`
`355`		`-ifos.path.exists(fh.filename):`
	`364`	`+ifos.path.lexists(fh.filename)and (remove_envor_is_annex_symlink(fh.filename)):`
`356`	`365`	`# Remove previous file where new file would be saved`
`357`	`366`	`# Necessary e.g. for cases where file is a symlink pointing`
`358`	`367`	`# to some non-writable file (e.g. under git annex control)`

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