50 lines
1.8 KiB
Perl
50 lines
1.8 KiB
Perl
Demonstrate running "dune exec" concurrently with an eager rpc server.
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$ echo '(lang dune 3.18)' > dune-project
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$ echo '(executable (name foo))' > dune
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$ echo 'let () = print_endline "foo"' > foo.ml
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$ touch README.md
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Just watch the readme file so we don't accidentally build foo.exe before
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testing the --no-build option:
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$ dune build README.md --watch &
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Success, waiting for filesystem changes...
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Success, waiting for filesystem changes...
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Success, waiting for filesystem changes...
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Demonstrate handling the --no-build option:
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$ dune exec --no-build ./foo.exe
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Error: Program './foo.exe' isn't built yet. You need to build it first or
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remove the '--no-build' option.
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[1]
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Demonstrate running an executable from the current project:
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$ dune exec ./foo.exe
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foo
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Demonstrate running an executable from PATH:
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$ dune exec echo "bar"
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Warning: As this is not the main instance of Dune it is unable to locate the
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executable "echo" within this project. Dune will attempt to resolve the
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executable's name within your PATH only.
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bar
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Demonstrate printing a warning if arguments are passed that would be ignored
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due to how Dune builds via RPC:
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$ dune exec --force ./foo.exe 2>&1 | sed 's/pid: [0-9]*/pid: PID/g'
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Warning: Your build request is being forwarded to a running Dune instance
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(pid: PID). Note that certain command line arguments may be ignored.
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foo
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Demonstrate trying to run exec in watch mode while another watch server is running:
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$ dune exec ./foo.exe --watch 2>&1 | sed 's/pid: [0-9]*/pid: PID/g'
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Error: Another instance of dune (pid: PID) has locked the _build
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directory. Refusing to start a new watch server until no other instances of
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dune are running.
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Demonstrate running an executable via an absolute path:
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$ dune exec $(which echo) "baz"
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baz
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$ dune shutdown
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$ wait
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