76 lines
2.4 KiB
Nix
76 lines
2.4 KiB
Nix
{ lib
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, buildPythonPackage
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, fetchPypi
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, pbr
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, pip
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, pkgs
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, stevedore
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, virtualenv
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, virtualenv-clone
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, python
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}:
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buildPythonPackage rec {
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pname = "virtualenvwrapper";
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version = "4.8.4";
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format = "setuptools";
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src = fetchPypi {
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inherit pname version;
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sha256 = "51a1a934e7ed0ff221bdd91bf9d3b604d875afbb3aa2367133503fee168f5bfa";
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};
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# pip depend on $HOME setting
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preConfigure = "export HOME=$TMPDIR";
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buildInputs = [ pbr pip pkgs.which ];
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propagatedBuildInputs = [ stevedore virtualenv virtualenv-clone ];
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postPatch = ''
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for file in "virtualenvwrapper.sh" "virtualenvwrapper_lazy.sh"; do
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substituteInPlace "$file" --replace "which" "${pkgs.which}/bin/which"
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# We can't set PYTHONPATH in a normal way (like exporting in a wrapper
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# script) because the user has to evaluate the script and we don't want
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# modify the global PYTHONPATH which would affect the user's
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# environment.
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# Furthermore it isn't possible to just use VIRTUALENVWRAPPER_PYTHON
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# for this workaround, because this variable is well quoted inside the
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# shell script.
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# (the trailing " -" is required to only replace things like these one:
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# "$VIRTUALENVWRAPPER_PYTHON" -c "import os,[...] and not in
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# if-statements or anything like that.
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# ...and yes, this "patch" is hacky :)
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substituteInPlace "$file" --replace '"$VIRTUALENVWRAPPER_PYTHON" -' 'env PYTHONPATH="$VIRTUALENVWRAPPER_PYTHONPATH" "$VIRTUALENVWRAPPER_PYTHON" -'
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done
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'';
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postInstall = ''
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# This might look like a dirty hack but we can't use the makeWrapper function because
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# the wrapped file were then called via "exec". The virtualenvwrapper shell scripts
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# aren't normal executables. Instead, the user has to evaluate them.
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for file in "virtualenvwrapper.sh" "virtualenvwrapper_lazy.sh"; do
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local wrapper="$out/bin/$file"
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local wrapped="$out/bin/.$file-wrapped"
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mv "$wrapper" "$wrapped"
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# WARNING: Don't indent the lines below because that would break EOF
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cat > "$wrapper" << EOF
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export PATH="${python}/bin:\$PATH"
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export VIRTUALENVWRAPPER_PYTHONPATH="$PYTHONPATH:$(toPythonPath $out)"
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source "$wrapped"
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EOF
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chmod -x "$wrapped"
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chmod +x "$wrapper"
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done
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'';
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meta = with lib; {
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description = "Enhancements to virtualenv";
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homepage = "https://pypi.python.org/pypi/virtualenvwrapper";
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license = licenses.mit;
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};
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}
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