* doc/cuirass.texi (Contributing): Use "bug-cuirass@framalistes.org" email
address.

This fixes the issue of having multiple identical derivations associated with
an evaluation as reported by Ludovic Courtès <ludo@gnu.org> at
<https://lists.gnu.org/archive/html/guix-devel/2017-01/msg00109.html>.

* src/cuirass/database.scm (db-add-derivation): Ignore if JOB is already
present in DB.

This was mistakenly added in commit 05e5495e.

* Makefile.am: Declare GPLv3+ instead of GPLv2+.
* configure.ac: Likewise.

* configure.ac: Declare <bug-cuirass@framalistes.org> as package mailing list,
and <https://notabug.org/mthl/cuirass/> as package website.
* src/cuirass/ui.scm (show-package-information): Display them.

* Makefile.am (guilesitedir, pkgmoduledir, BUILT_SOURCES): Add whitespaces
around '='.

When building Cuirass with 'guix build -f build-aux/guix.scm' we don't want to
add "build-aux/guix.scm" in the repository snapshot since it is considered as
metadata.  As a consequence we can't make 'autoconf' require it.

* configure.ac (AC_REQUIRE_AUX_FILE): Remove "build-aux/guix.scm".
* Makefile.am (EXTRA_DIST): Only distribute it.

* Makefile.am <Generated files>: Fix typo "the" => "they".

* Makefile.am (nodist_guilesite_DATA, nodist_pkgmodule_DATA, CLEANFILES): Use
portable substitution references.

* guix.scm: Delete.
* build-aux/guix-env: Likewise.
* build-aux/guix.scm: New file.
* configure.ac (AC_REQUIRE_AUX_FILE): Distribute it.
* README <Build Instructions>: Document it.

* guix/ci.scm: Delete file.  Guix already provides a package definition for
Cuirass.
* build-aux/pre-inst-env.in (GUIX_PACKAGE_PATH): Remove.

* build-aux/git-version-gen: New script.
* configure.ac (AC_INIT): Use it.
(AC_REQUIRE_AUX_FILE): Distribute it.
* Makefile.am (.version): New target.
(BUILT_SOURCES, EXTRA_DIST): Add it.
(dist-hook): Generate ".tarball-version".
* .gitignore: Update.

* bin/cuirass.in (%options): Add "--port" and "-p" command line options.
(show-help): Adapt.
(main): Set default to 8080.  Call 'run-cuirass-server' with this.
* src/cuirass/http.scm (run-cuirass-server): Display the port number.
* doc/cuirass.texi (Invocation): Document new option.

* src/cuirass/http.scm (run-cuirass-server): Add 'port' keyword argument.

* src/cuirass/config.scm.in (%datadir, %localstatedir): Don't refer to
previous '$prefix' expansion hack in comments.

This reverts most of 4f0d6657.  The load paths
are still hard coded after installation, however 'pre-inst-env' wrapper is
used for defining them in the local build environment.  This is more
convenient for running the tests manually or launching a Guile REPL with all
the Cuirass modules accessible.

* build-aux/pre-inst-env.in (GUILE_LOAD_PATH, GUILE_LOAD_COMPILED_PATH): New
variables.
* bin/cuirass.in: Comment Guile load paths.
* Makefile.am (local_load_path, local_load_compiled_path): Delete.
(AM_TESTS_ENVIRONMENT): Don't set Guile load paths.
(do_subst): Use install directories for Guile load paths.
(install-exec-hook): Uncomment 'cuirass' hard coded load paths.

* src/cuirass/utils.scm (call-with-temporary-directory): New procedure.
* src/cuirass/repo.scm: Use it.  New file.
* tests/repo.scm: New tests.
* Makefile.am (dist_pkgmodule_DATA, TESTS): Add them.

* doc/cuirass.texi (Overview): New chapter.

* doc/cuirass.texi (Continuous Integration): Make it a section of
the 'Introduction' chapter.

* Makefile.am (EXTRA_DIST): Move examples to ...
(nobase_dist_pkgdata_DATA): ... here.  New variable.

* examples/gnu-system.scm: Moved from 'tests' directory.
* examples/guix-jobs.scm: Likewise.
* examples/guix-track-git.scm: Likewise.
* examples/hello-git.scm: Likewise.
* examples/hello-singleton.scm: Likewise.
* examples/hello-subset.scm: Likewise.
* Makefile.am (EXTRA_DIST): Adapt.
* README <Example>: Likewise.

* doc/cuirass.texi (Introduction): Write it.

* doc/cuirass.texi: Use "Build automation server" instead of "Continuous
Integration Tool".

* doc/cuirass.texi: New file.
* doc/fdl-1.3.texi: Likewise.
* Makefile.am (info_TEXINFOS, doc_cuirass_TEXINFOS): New variables.
* dir-locals.el: Use the American dictionary for Texinfo mode.
* .gitignore: Update.

* src/cuirass/base.scm (fetch-repository): Use 'mkdir-p' instead of 'mkdir'
for 'cachedirectory'.

* Makefile.am (local_load_path, local_load_compiled_path): Remove quotes that
were expanded in the generated files.

* Makefile.am (do_subst): Remove duplicate line.

* src/cuirass/base.scm (build-packages, process-specs): Use an inner
definition instead of a big anonymous procedure.

* src/schema.sql (Specifications): Make 'repo_name' the primary key.
(Stamps, Evaluations): Adapt.
* src/cuirass/database.scm (db-get-specifications): Likewise.
(db-add-specification): Ignore if SPEC has already been added.
* tests/database.scm (example-spec): Adapt.

Before that, modifying 'src/cuirass/config.scm' was triggering the
recompilation of all modules which was unnecessary.

* Makefile.am (go_files, $(go_files)): Delete.
(BUILT_SOURCES): New variable.

* configure.ac: Add copyright notice.
* Makefile.am: Likewise.

* configure.ac (bin/cuirass, bin/evaluate): Let 'make' generate them.
* bin/cuirass.in: Hard code load paths to find Cuirass modules.
* Makefile.am (do_subst): Update substitution.
(bin/cuirass, bin/evaluate): New rules.
(EXTRA_DIST): Distribute 'bin/cuirass.in' and 'bin/evaluate.in'.
(MOSTLYCLEANFILES): Add '$(bin_SCRIPTS)'.
(install-exec-hook): New target.
(local_load_path, local_load_compiled_path): New variables.
(AM_TESTS_ENVIRONMENT): Set Guile load paths.
* build-aux/pre-inst-env.in: Don't modify Guile load paths.

* Makefile.am (src/cuirass/config.scm, $(go_files)): New targets.
(do_subst, generate_file, go_files): New variables.
(EXTRA_DIST): Distribute 'src/cuirass/config.scm.in'.
(DISTCLEANFILES): Rename to ...
(MOSTLYCLEANFILES): ... this.
* configure.ac (AC_CONFIG_FILES): Remove 'src/cuirass/config.scm'.
(@expanded_datadir@, @expanded_localstatedir@): Delete.
(AC_PROG_MKDIR_P, AC_PROG_SED): Use them.
* src/cuirass/config.scm (%datadir): Set it to $(localstatedir).
(%localstatdir): Set it to $(datadir).

* src/cuirass.scm: Re-export (cuirass http) module.
* bin/cuirass.in (main): Run HTTP server and move the 'process-specs'
loop in another thread.

* src/cuirass/http.scm (not-found): Delete.
(url-handler): Add DB argument.
(run-cuirass-server): Likewise.  Pass it to 'run-server' STATE argument.

* bin/cuirass (main): Remove 'let' before main loop.

* README: Slightly change wording.

Signed-off-by: Mathieu Lirzin <mthl@gnu.org>

This fixes "tests/hello-singleton.scm" evaluation.

* build-aux/pre-inst-env.in (GUIX_PACKAGE_PATH): Use absolute directory
names.

* src/cuirass/base.scm (build-packages): Catch build failures, write
error log and update database.

Signed-off-by: Mathieu Lirzin <mthl@gnu.org>

* guix.scm: New file; specify Guix package.
* guix/ci.scm: New file; expose to Guix.
* build-aux/pre-inst-env.in: Add it to GUIX_PACKAGE_PATH.
* bin/evaluate.in (main): Lookup proc using name specified by #:proc.
* tests/guix-track-git.scm: New file.
* tests/hello-git.scm: Test it.

Signed-off-by: Mathieu Lirzin <mthl@gnu.org>

* src/schema.sql (Specifications): Add no_compile_p column.
* src/cuirass/database.scm (db-add-specification)
(db-get-specifications): Handle #:no-compile? property.
* tests/database.scm (example-spec): Adapt.
* src/cuirass/base.scm (process-specs): Skip compilation if #:no-compile?.

Signed-off-by: Mathieu Lirzin <mthl@gnu.org>