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package rosa
var (
_python = H("python")
_pythonPyTest = H("python-pytest")
)
// PipHelper installs python packages from source using pip.
type PipHelper struct {
// Path elements joined with source.
Append []string
// Whether to omit --no-build-isolation.
BuildIsolation bool
// Whether to enter source after install.
EnterSource bool
// Whether to install to build environment after install.
Install bool
// Whether to skip running tests.
SkipCheck bool
// Replaces pytest if non-empty.
Check string
// Runs after install.
Script string
}
var _ Helper = new(PipHelper)
// extra returns python, or pytest if defaults are assumed.
func (attr *PipHelper) extra(int) P {
if attr == nil || (!attr.SkipCheck && attr.Check == "") {
return P{_pythonPyTest}
}
return P{_python}
}
// wantsChmod returns true.
func (*PipHelper) wantsChmod() bool { return true }
// wantsWrite is equivalent to wantsChmod.
func (attr *PipHelper) wantsWrite() bool { return attr.wantsChmod() }
// scriptEarly is a noop.
func (*PipHelper) scriptEarly() string { return "" }
// wantsDir requests a new directory in TMPDIR.
func (*PipHelper) wantsDir() (string, bool) { return `"$(mktemp -d)"`, false }
// script generates the pip3 install command.
func (attr *PipHelper) script(_ Toolchain, name string) string {
if attr == nil {
attr = new(PipHelper)
}
sourcePath := AbsUsrSrc.Append(name).Append(attr.Append...)
var extra string
if !attr.BuildIsolation {
extra += `
--no-build-isolation \`
}
var script string
if attr.Install {
script += `pip3 install \
--no-index \
--prefix=/system \
--no-build-isolation \
'` + sourcePath.String() + `'
`
}
if attr.EnterSource {
script += "cd '/usr/src/" + name + "'\n"
}
if !attr.SkipCheck {
if attr.Check == "" {
// some test suites fall apart when ran out-of-tree
script += "(cd '" + sourcePath.String() + "' && pytest)\n"
} else {
script += attr.Check
}
}
script += attr.Script
return `
pip3 install \
--no-index \
--prefix=/system \
--root=/work \` + extra + `
'` + sourcePath.String() + `'
` + script
}
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