package b0

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Tool lookup
Environment

package b0

b0.b00
- B00
  - Env
  - Exec
  - File_cache
    
    Stats
  - Guard
  - Memo
    
    Fut
  - Op
    
    Map
    
    Mkdir
    
    Read
    
    Set
    
    Spawn
    
    Write
  - Op_cache
  - Tool
b0.care
- B0_github
  - Issue
  - Pages
  - Release
  - Repo
- B0_machine
- B0_odoc
  - Compile
    
    Dep
    
    Writes
  - Html
    
    Dep
    
    Writes
  - Html_fragment
  - Support_files
    
    Writes
- B0_trace
  - Compilation_database
  - Trace_event
- B0_ui
  - Browser
  - Cli
    
    Arg
    
    B0_std
  - Editor
  - Memo
  - Pager
- B0_vcs
  - Git
- B0_web
  - Htmlg
    
    Att
    
    El
  - Http
  - Json
  - Jsong
  - Jsonq
b0.std
- B0_std
  - Char
    
    Ascii
  - Cmd
  - Conv
    
    Bin
    
    Txt
  - Fmt
  - Fpath
    
    Map
    
    Set
  - Hash
    
    Murmur3_128
    
    T
    
    Xxh_64
  - List
  - Log
  - Option
  - Os
    
    Cmd
    
    Dir
    
    Env
    
    Fd
    
    File
    
    Path
  - Result
  - String
    
    Ascii
    
    Map
    
    Set
  - Time
    
    Span
  - Tty

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Library
Module
Module type
Parameter
Class
Class type

Build environment.

Build environments control tool lookup and the environment of tool spawns.

Tool lookup

type tool_lookup = B0_std.Cmd.tool -> (B0_std.Fpath.t, string) result

The type for tool lookups. Given a command line tool specification returns a file path to the tool executable or an error message mentioning the tool if it cannot be found.

val env_tool_lookup : 
  ?sep:string ->
  ?var:string ->
  B0_std.Os.Env.t ->
  tool_lookup

env_tool_lookup ~sep ~var env is a tool lookup that gets the value of the var variable in env treats it as a sep separated search path and uses the result to lookup with B0_std.Os.Cmd.must_find. var defaults to PATH and sep to B0_std.Fpath.search_path_sep.

Environment

type t

The type for build environments.

val v : 
  ?lookup:tool_lookup ->
  ?forced_env:B0_std.Os.Env.t ->
  B0_std.Os.Env.t ->
  t

v ~lookup ~forced_env env is a build environment with:

lookup used to find build tools. Defaults to env_tool_lookup env.
forced_env is environment forced on any tool despite what it declared to access, defaults to Os.Env.empty
env the environment read by the tools' declared environment variables.

val env : t -> B0_std.Os.Env.t

env e is e's available spawn environment.

val forced_env : t -> B0_std.Os.Env.t

forced_env e is e's forced spawn environment.

val tool : t -> B0_std.Cmd.tool -> (B0_std.Fpath.t, string) result

tool e t looks up tool t in e.