Tool spawns.
The type for spawn standard outputs redirections.
`Ui redirects the output to the user interface of the build system (usually only shown in case of failure). Outputs are always first redirected to a file and read back by the program running the build on completion, this means that in the spawn program isatty(3) will be false on the fds.`File p redirect the output to file path p.`Tee p, is both `Ui and File `f.The list of process exit codes that indicate success. If the list is empty this any exit code.
val v_op :
id:id ->
mark:mark ->
created:B0_std.Mtime.span ->
reads:B0_std.Fpath.t list ->
writes:B0_std.Fpath.t list ->
?writes_manifest_root:B0_std.Fpath.t ->
?post_exec:(op -> unit) ->
?k:(op -> unit) ->
stamp:string ->
env:B0_std.Os.Env.assignments ->
stamped_env:B0_std.Os.Env.assignments ->
cwd:B0_std.Fpath.t ->
stdin:B0_std.Fpath.t option ->
stdout:stdo ->
stderr:stdo ->
success_exits:success_exits ->
B0_std.Cmd.tool ->
B0_std.Cmd.t ->
opv_op declares a spawn build operation, see the corresponding accessors for the semantics of the various arguments.
val v :
env:B0_std.Os.Env.assignments ->
stamped_env:B0_std.Os.Env.assignments ->
cwd:B0_std.Fpath.t ->
stdin:B0_std.Fpath.t option ->
stdout:stdo ->
stderr:stdo ->
success_exits:success_exits ->
B0_std.Cmd.tool ->
B0_std.Cmd.t ->
stamp:string ->
stdo_ui:(string, string) result option ->
exit:B0_std.Os.Cmd.status option ->
tv constructs a bare spawn operation.
val env : t -> B0_std.Os.Env.assignmentsenv s is the environment in which s runs.
val stamped_env : t -> B0_std.Os.Env.assignmentsstamped_env s are the assignements of env s that may influence the tool outputs.
val cwd : t -> B0_std.Fpath.tcwd s is the cwd with which s runs.
val stdin : t -> B0_std.Fpath.t optionstdin s is the file s uses as stdin (if any).
val success_exits : t -> success_exitssuccess_exits s is the list of process exit codes s that indicate success.
val tool : t -> B0_std.Cmd.tooltool t is the spawned tool. Note that this has to be a full path at that point.
val args : t -> B0_std.Cmd.targs s are the spawned tool arguments.
val stamp : t -> stringstamp s is a stamp that is used for caching. Two spans operations all otherwise equal but differing only in their stamp must not cache to the same key.
stdo_ui sr is the standard outputs redirection contents of s once it has executed (if any).
set_stdo_ui w ui sets w's standard output redirection contents to ui.
val exit : t -> B0_std.Os.Cmd.status optionexit s is the spawn exit status of s.
val set_exit : t -> B0_std.Os.Cmd.status option -> unitset_exit s e the spawn exit status of s to e.
exit_to_status s assumes s has been executed and determines an operation status according to exit and success_exits.