def Lean.realPathNormalized (p : Lake.FilePath) : IO Lake.FilePath

def Lean.modToFilePath (base : Lake.FilePath) (mod : Lake.Name) (ext : String) : Lake.FilePath

def Lean.modToFilePath.go (base : Lake.FilePath) : Lake.Name → Lake.FilePath

Equations

• Lean.modToFilePath.go base (Lean.Name.str p h) = Lean.modToFilePath.go base p / { toString := h }
• Lean.modToFilePath.go base Lean.Name.anonymous = base
• Lean.modToFilePath.go base (Lean.Name.num pre i) = panicWithPosWithDecl "Lean.Util.Path" "Lean.modToFilePath.go" 25 20 "ill-formed import"

@[inline, reducible]

abbrev Lean.SearchPath : Type

A `.olean' search path.

def Lean.SearchPath.findWithExt (sp : Lean.SearchPath) (ext : String) (mod : Lake.Name) : IO (Option Lake.FilePath)

If the package of mod can be found in sp, return the path with extension ext (lean or olean) corresponding to mod. Otherwise, return none. Does not check whether the returned path exists.

def Lean.SearchPath.findModuleWithExt (sp : Lean.SearchPath) (ext : String) (mod : Lake.Name) : IO (Option Lake.FilePath)

Like findWithExt, but ensures the returned path exists.

def Lean.SearchPath.findAllWithExt (sp : Lean.SearchPath) (ext : String) : IO (Array Lake.FilePath)

opaque Lean.searchPathRef : IO.Ref Lean.SearchPath

@[export lean_get_prefix]

def Lean.getBuildDir : IO Lake.FilePath

@[export lean_get_libdir]

def Lean.getLibDir (leanSysroot : Lake.FilePath) : IO Lake.FilePath

def Lean.getBuiltinSearchPath (leanSysroot : Lake.FilePath) : IO Lean.SearchPath

def Lean.addSearchPathFromEnv (sp : Lean.SearchPath) : IO Lean.SearchPath

def Lean.initSearchPath (leanSysroot : Lake.FilePath) (sp : optParam Lean.SearchPath ∅) : IO Unit

Initialize Lean's search path given Lean's system root and an initial search path. The system root can be obtained via getBuildDir (for internal use) or findSysroot (for external users).

def Lean.findOLean (mod : Lake.Name) : IO Lake.FilePath

partial def Lean.findOLean.maybeThisOne (pkg : Lake.FilePath) (dir : Lake.FilePath) : IO (Option String)

@[export lean_module_name_of_file]

def Lean.moduleNameOfFileName (fname : Lake.FilePath) (rootDir : Option Lake.FilePath) : IO Lake.Name

Infer module name of source file name.

def Lean.searchModuleNameOfFileName (fname : Lake.FilePath) (rootDirs : Lean.SearchPath) : IO (Option Lake.Name)

def Lean.findSysroot (lean : optParam String "lean") : IO Lake.FilePath

Find the system root of the given lean command by calling lean --print-prefix and returning the path it prints. Defaults to trying the lean in PATH. If set, the LEAN_SYSROOT environment variable takes precedence. Note that the called lean binary might not be part of the system root, e.g. in the case of elan's proxy binary. Users internal to Lean should use Lean.getBuildDir instead.