deno_command.deno.txt

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VERSION ==>                       #See deno doc

new Deno.Command(UPATH[, OPTS])   #COMMAND, i.e. configuration for CHILD_PROCESSs
                                  #Does not use any shell.
OPTS.args                         #'ARG'_ARR (def: [])
OPTS.env                          #ENVVAR_OBJ
OPTS.clearEnv                     #BOOL. If false (def), merge OPTS.env with parent ENVVARs instead of overwriting
OPTS.cwd                          #DIR_UPATH (def: current)
OPTS.uid|gid                      #NUM (def: current)
OPTS.signal                       #ABORT_SIGNAL, calling kill()
                                  #Not with outputSync()
OPTS.windowsRawArguments          #BOOL (def: false). No shell escaping, i.e. can use cmd.exe syntax.
                                  #Only with Windows.

COMMAND.spawn()->CHILD_PROCESS   U#Start a new process, do not wait for exit
CHILD_PROCESS.pid                 #NUM
CHILD_PROCESS.[un]ref()           #Set whether ref'd by the current process
CHILD_PROCESS.status              #>COMMAND_STATUS
COMMAND|CHILD_PROCESS.output()
 ->>COMMAND_OUTPUT
COMMAND.outputSync()
 ->COMMAND_OUTPUT                U#Start a new process, wait for exit

COMMAND_STATUS|OUTPUT.code        #Exit code NUM
COMMAND_STATUS|OUTPUT.signal      #SIGNAL|null terminating the process
COMMAND_STATUS|OUTPUT.success     #BOOL. true if exit code non-0

OPTS.stdin|stdout|stderr          #One of:
                                  #  - 'inherit': redirect from parent
                                  #  - 'piped':
                                  #      - use CHILD_PROCESS|COMMAND_OUTPUT.stdin|stdout|stderr
                                  #      - unless set, they throw
                                  #  - 'null': ignore
                                  #Def:
                                  #  - spawn(): 'inherit'
                                  #  - output(): 'inherit' with stdin, 'piped' with stdout|stderr
CHILD_PROCESS.stdin               #WSTREAM
                                  #Must manually stdin.close() (if 'piped')
CHILD_PROCESS.stdout|stderr       #RSTREAM
COMMAND_OUTPUT.stdout|stderr      #UINT8ARR