DVT IDE for VS Code VHDL User Guide
Rev. 22.1.36, 22 November 2022

24.1.1 dvt_code.sh Syntax

Usage: dvt_code.sh [ createProject | connect ]

  Start VS Code / VSCodium
      -code_args <args>     Additional VS Code / VSCodium arguments.
      -noexit               Script will not terminate after VS Code / VSCodium is started.
      -reuse_window         VS Code / VSCodium will reuse the last active window.

  Start VS Code / VSCodium and create a language server:
    createProject <project path> -lang <lang> [-build <name>] [-name <name>] [-heap_size <size>] [-stack_size <size>] [-vmargs <args>] [-code_args <args>] [-use_available] [-local] [-noexit] [-reuse_window] [-map <link_name> <target_path>] [-f|-F <file_path>] [-<name>.build <build configuration directives ...>]
     Mandatory arguments:
       <project_path>        Path to project (must exist).
       -lang <lang>          Set the project language.
                             At least one language must be specified.

     Optional arguments:
       -build <name>         Name of active build configuration.
       -name <name>          Friendly name for this language server.
       -heap_size <size>     Set the Java heap size (syntax is <N>[g|G|m|M|k|K]). Default is 3072m.
       -stack_size <size>    Set the Java thread stack size (syntax is <N>[g|G|m|M|k|K]). Default is 4m.
       -vmargs <args>        Additional Java arguments.
       -code_args <args>     Additional VS Code / VSCodium arguments.
       -use_available        Connect to an available language server with the same project path and build name.
       -local                Language server will bind to the '' address, only connections from the same machine will be accepted.
       -noexit               Script will not terminate after VS Code / VSCodium is started.
       -reuse_window         VS Code / VSCodium will reuse the last active window.
       -map                  Create a linked resource called <link_name> pointing to <link_target>.
       -f|-F                 Specify a command file for the project. -f and -F are mutually exclusive.
       -<name>.build         Create the build configuration file <project>/.dvt/<name>.build with <build configuration directives> as content.
                             All flags up to the end of the command line, or up to the next -<name>.build flag are considered build
                             configuration directives. This flag cannot be used in conjunction with -f, or -F.

  Start VS Code / VSCodium and connect to a language server:
    connect <id> | <port@host> | <name> [-noexit] [-code_args <args>] [-reuse_window]
      <id>                  Language server's id.
      <port@host>           Language server's port and host.
      <name>                Language server's name.
      -code_args <args>     Additional VS Code / VSCodium arguments.
      -noexit               Script will not terminate after VS Code / VSCodium is started.
      -reuse_window         VS Code / VSCodium will reuse the last active window.

  Environment Variables:
    DVT_CODE_BIN            Path to VS Code / VSCodium executable binary.
                            Default is $DVT_HOME/codium/bin/codium when running from a DVT distro.
                            This variable must be set when manually installing the extension from VSIX or from Extension Marketplace
                            and the script is part of the extension installation directory.

Using the script without providing the createProject or connect commands starts a VS Code / VSCodium and restores its last known state.


Starts VS Code / VSCodium with and automatically creates a project as follows:

1. A Language Server is started with the arguments provided after the createProject command, these arguments are forwarded to dvt_ls.sh as they are and if they are missing they will be inferred or defaults will be used as described in dvt_ls.sh documentation. When use_available argument is provided, the script will look for an available (reachable and unused) Language Servers matching the same project path, build name and language and if any server is found it will be used in the second step.

2. VS Code / VSCodium is started with the folder <project path> loaded, then it connects to the Language Server started or identified in the first step.


Starts VS Code / VSCodium and connects to a running Language Server specified by <id>, <port@host> or <name>, the folder on which that Language Server was started will be loaded into the VS Code / VSCodium automatically.

Notes about other arguments:

  • The <project_path>, build <name>, lang <lang>, name <name>, heap_size <size>, stack_size <size> are passed as they are to the dvt_ls.sh start ... command.

  • Arguments can be passed to the VS Code / VSCodium process using code_args argument.

  • By default the script starts VS Code / VSCodium in background and ends, returning the control of the terminal. In some situations (e.g. when dispatching the job into a computer farm) it is preferable to run the script as a foreground job in which case noexit flag must be used.