package opam-core

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Querying
Exit handling

package opam-core

opam-core
- OpamCompat
- OpamConsole
- OpamCoreConfig
- OpamDirTrack
- OpamFilename
  - Attribute
    
    Map
    
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  - Base
    
    Map
    
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    Op
  - Dir
    
    Map
    
    Set
    
    Op
  - Map
  - Op
  - Set
    
    Op
- OpamHash
  - Map
  - Set
    
    Op
- OpamJson
- OpamParallel
  - G
    
    E
    
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    Vertex
  - GRAPH
    
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  - MakeGraph
    
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  - SIG
    
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  - VERTEX
- OpamProcess
  - Job
    
    Op
- OpamSHA
- OpamStd
  - ABSTRACT
    
    Map
    
    Set
    
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  - AbstractString
    
    Map
    
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  - Config
    
    Sig
  - Env
  - Exn
  - Format
  - IntMap
  - IntSet
    
    Op
  - List
  - MAP
  - Map
    
    Make
    
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  - Op
  - Option
    
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  - OrderedType
  - SET
    
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  - String
    
    Map
    
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    SetMap
    
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  - Sys
- OpamSystem
- OpamUrl
  - Map
  - Op
  - Set
    
    Op
- OpamVersion
  - Map
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- OpamVersionCompare

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Library
Module
Module type
Parameter
Class
Class type

Querying

val tty_out : bool

true if stdout is bound to a terminal

val tty_in : bool

true if stdin is bound to a terminal

val terminal_columns : unit -> int

Queried lazily, but may change on SIGWINCH

val home : unit -> string

The user's home directory. Queried lazily

val etc : unit -> string

The /etc directory

type os =

| Darwin
| Linux
| FreeBSD
| OpenBSD
| NetBSD
| DragonFly
| Cygwin
| Win32
| Unix
| Other of string

val os : unit -> os

Queried lazily

val os_string : unit -> string

val arch : unit -> string

Queried lazily

val guess_shell_compat : unit -> [ `csh | `zsh | `sh | `bash | `fish ]

Guess the shell compat-mode

val guess_dot_profile : [ `csh | `zsh | `sh | `bash | `fish ] -> string

Guess the location of .profile

val path_sep : unit -> char

The separator character used in the PATH variable (varies depending on OS)

Exit handling

val at_exit : (unit -> unit) -> unit

Like Pervasives.at_exit but with the possibility to call manually (eg. before exec())

val exec_at_exit : unit -> unit

Calls the functions registered in at_exit. Unneeded if exiting normally

exception Exit of int

Indicates intention to exit the program with given exit code

exception Exec of string * string array * string array

Indicates intention to exec() the given command (paramters as per Unix.execvpe), after proper finalisations. It's the responsibility of the main function to catch this, call exec_at_exit, and Unix.execvpe.

val exit : int -> 'a

Raises Exit i