New "eiffel" tool with EiffelStudio 18.01
Do you know that EiffelStudio 18.01 comes with a new tool
Use it to execute an Eiffel project by providing its ECF file.
As simply as
eiffel path-to-project.ecf arg1 arg2 ....
You can find the
eiffel tool within EiffelStudio installation, at
It is a simple replacement for:
> ec -config path-to-project.ecf -finalize -c_compile -project_path path-to-compilation-dir
> cp path-to-compilation-dir/EIFGENs/target_name/F_code/executable_name path-to-binary-folder/executable_name
> rmdir path-to-compilation-dir/EIFGENs/target_name
> path-to-binary-folder/executable_name arg1 arg2.
eiffel, the user does not need to know the target name, and the expected output execution name)
eiffel is a bit more than a set of instructions, as it supports cache and recompilation behavior:
- the first time, the project is compiled, and on successful compilation the executable is kept somewhere, and launched with the given arguments.
- the next time(s),
eiffelreuses the executable previously compiled for the execution.
A (re)compilation is triggered when:
- the ECF file changed,
- any of the classes included in the project's clusters changed,
- any of the ECF for the included libraries changed,
- it is required by the
eiffelcommand using specific options
Note: to execute a specific target from the given ECF file, use the
--target target_name option, such as :
eiffel --target hello_world path-to-hello-project.ecf
Also a build tool
In addition, this
eiffel tool can also be used as a simple build tool to compile an Eiffel project and get the executable. For instance:
eiffel build --target hello_world path-to-hello-project.ecf my_hello_world
It is convenient to build an Eiffel project, without knowing the expected executable name.
Suggestions, comments, ...
For more information, check the usage (
eiffel (-v|--verbose) (-h|--help) (-b|--build) (--check class,project) (--target ecf_target_name) <project.ecf> ...
eiffel build (-v|--verbose) (--target ecf_target_name) <project.ecf> <output_executable_path> ...
<project.ecf> ... : build once and launch <project.ecf> execution.
build : build project and save executable as <output_executable_path>.
--target <ecf-target-name> : optional target name.
--check <level> : check level for recompilation, either class (default), or project.
: class = check timestamp of system class files,
: and ecf files for included libraries
: (ignoring classes from libraries).
: project = only check the timestamp of main project ecf file.
-b --build : force a fresh system build.
-o --executable-output <path> : build and save executable as <path>.
: without any execution.!
-v --verbose : verbose output.
-h --help : display this help.
... : arguments for the <project.ecf> execution.
Note: you can overwrite default value, using
EIFFEL_SCRIPT_DIR : root directory for eiffel script app (default under Eiffel user files/.apps)
EIFFEL_SCRIPT_CACHE_DIR : directory caching the compiled executables ($EIFFEL_SCRIPT_DIR/cache)
EIFFEL_SCRIPT_COMP_DIR : directory caching the EIFGENs compilation ($EIFFEL_SCRIPT_DIR/comp)