[bug#28663] [PATCH 01/22] guix: ant-build-system: Add main-class support.

[Roel Janssen <roel@gnu.org>]

Hi Julien,

Thanks for these patches!  I will try to look all of them.

julien@lepiller.eu writes:

> From: Julien Lepiller <julien@lepiller.eu>
>
> * guix/build-system/ant.scm: New #:main-class argument
> * guix/build/ant-build-system.scm: Generate a manifest file with
> additional properties.
> ---
>  guix/build-system/ant.scm       |  2 ++
>  guix/build/ant-build-system.scm | 27 ++++++++++++++++++++++-----
>  2 files changed, 24 insertions(+), 5 deletions(-)
>
> diff --git a/guix/build-system/ant.scm b/guix/build-system/ant.scm
> index e0870a605..a700230ec 100644
> --- a/guix/build-system/ant.scm
> +++ b/guix/build-system/ant.scm
> @@ -99,6 +99,7 @@
>                      (make-flags ''())
>                      (build-target "jar")
>                      (jar-name #f)
> +                    (main-class #f)
>                      (source-dir "src")
>                      (test-dir "src/test")
>                      (phases '(@ (guix build ant-build-system)
> @@ -130,6 +131,7 @@
>                    #:test-target ,test-target
>                    #:build-target ,build-target
>                    #:jar-name ,jar-name
> +                  #:main-class ,main-class
>                    #:source-dir ,source-dir
>                    #:test-dir ,test-dir
>                    #:phases ,phases
> diff --git a/guix/build/ant-build-system.scm b/guix/build/ant-build-system.scm
> index 4042630a1..727d3a3b2 100644
> --- a/guix/build/ant-build-system.scm
> +++ b/guix/build/ant-build-system.scm
> @@ -36,7 +36,7 @@
>  ;; Code:
>  
>  (define* (default-build.xml jar-name prefix #:optional
> -                            (source-dir ".") (test-dir "./test"))
> +                            (source-dir ".") (test-dir "./test") (main-class #f))
>    "Create a simple build.xml with standard targets for Ant."
>    (call-with-output-file "build.xml"
>      (lambda (port)
> @@ -44,6 +44,10 @@
>         `(project (@ (basedir "."))
>                   (property (@ (name "classes.dir")
>                                (value "${basedir}/build/classes")))
> +                 (property (@ (name "manifest.dir")
> +                              (value "${basedir}/build/manifest")))
> +                 (property (@ (name "manifest.file")
> +                              (value "${manifest.dir}/MANIFEST.MF")))
>                   (property (@ (name "jar.dir")
>                                (value "${basedir}/build/jar")))
>                   (property (@ (name "dist.dir")
> @@ -60,6 +64,17 @@
>                   (path (@ (id "classpath"))
>                         (pathelement (@ (location "${env.CLASSPATH}"))))
>  
> +                 (target (@ (name "manifest"))
> +                         (mkdir (@ (dir "${manifest.dir}")))
> +                         (echo (@ (file "${manifest.file}")
> +                                  (message ,(string-append
> +                                              (if main-class
> +                                                (string-append
> +                                                  "Main-Class: " main-class
> +                                                  "${line.separator}")
> +                                                "")
> +                                              "")))))
I think this ----------------------------------> ^^ is not needed.

Otherwise LGTM.

>                   (target (@ (name "compile"))
>                           (mkdir (@ (dir "${classes.dir}")))
>                           (javac (@ (includeantruntime "false")
> @@ -97,10 +112,11 @@
>                                                      (include (@ (name "**/*Test.java" )))))))
>  
>                   (target (@ (name "jar")
> -                            (depends "compile"))
> +                            (depends "compile, manifest"))
>                           (mkdir (@ (dir "${jar.dir}")))
>                           (exec (@ (executable "jar"))
> -                               (arg (@ (line ,(string-append "-cf ${jar.dir}/" jar-name
> +                               (arg (@ (line ,(string-append "-cmf ${manifest.file} "
> +                                                             "${jar.dir}/" jar-name
>                                                               " -C ${classes.dir} ."))))))
>  
>                   (target (@ (name "install"))
> @@ -133,12 +149,13 @@ to the default GNU unpack strategy."
>  
>  (define* (configure #:key inputs outputs (jar-name #f)
>                      (source-dir "src")
> -                    (test-dir "src/test") #:allow-other-keys)
> +                    (test-dir "src/test")
> +                    (main-class #f) #:allow-other-keys)
>    (when jar-name
>      (default-build.xml jar-name
>                         (string-append (assoc-ref outputs "out")
>                                        "/share/java")
> -                       source-dir test-dir))
> +                       source-dir test-dir main-class))
>    (setenv "JAVA_HOME" (assoc-ref inputs "jdk"))
>    (setenv "CLASSPATH" (generate-classpath inputs)))

LGTM!

Kind regards,
Roel Janssen