How to tell Play to compile and create a minified version of my.js? After running 'play stage', I can't find it anywhere under target/scala-2.10/resource_managed or target/scala-2.10/classes.
app/
assets/
javascripts/
main/
some.js
EDIT 1: follow Raunak's comment, I tried this. But the minified js is still not created.
val main = play.Project(appName, appVersion, appDependencies)
.settings(
ebeanEnabled := true,
requireJs += "mainProd.js", // files specified in requireJs will be optimized
requireJsShim += "build.js", // build options for optimizer
requireJsFolder := "js",
routesImport += "se.radley.plugin.salat.Binders._",
templatesImport ++= Seq("org.bson.types.ObjectId"),
resolvers += "Mave2" at "http://repo1.maven.org/maven2",
resolvers += "Typesafe Repository" at "http://repo.typesafe.com/typesafe/releases/",
resolvers += "Sonatype OSS Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots",
resolvers += Resolver.sonatypeRepo("snapshots"),
parallelExecution in Test := false,
javascriptEntryPoints <<= baseDirectory(base =>
base / "app" / "assets" / "javascripts" / "main" ** "*.js"
)
)
EDIT 2: I found out all of js files in requireJsFolder would not be compiled at all if I gave javascriptEntryPoints.
To run the minify process you can run the following command as per their documentation.
For example, to compile only .js file from the app/assets/javascripts/main directory:
val main = PlayProject(appName, appVersion, mainLang = SCALA).settings(
javascriptEntryPoints <<= baseDirectory(base =>
base / "app" / "assets" / "javascripts" / "main" ** "*.js"
)
)
To check the minify is generated normally during staging
you can use a play dist command to prepare standalone version of application similar to play stage command, it will generate a zip file, instead writing the code into target directory. Then you can check the minified file exists or not
Related
I am writing a wrapper over c libriary and this lib has file with almost all functions, let say, all_funcs.c. This file in turn requires compilation of lots of another c files
I have created all_funcs.pyx, where I wraped all functions, but I also want to create a submodule, that has access to functions from all_funcs.c. What works for now is adding all c-files to both Extensions in setup.py, however each c-file compiles twice: first for all_funcs.pyx and second for submodule extension.
Are there any ways to provide common sourse files to each Extension?
Example of current setup.py:
ext_helpers = Extension(name=SRC_DIR + '.wrapper.utils.helpers',
sources=[SRC_DIR + '/wrapper/utils/helpers.pyx'] + source_files_paths,
include_dirs=[SRC_DIR + '/include/'])
ext_all_funcs = Extension(name=SRC_DIR + '.wrapper.all_funcs',
sources=[SRC_DIR + '/wrapper/all_funcs.pyx'] + source_files_paths,
include_dirs=[SRC_DIR + '/include/'])
EXTENSIONS = [
ext_helpers,
ext_all_funcs,
]
if __name__ == "__main__":
setup(
packages=PACKAGES,
zip_safe=False,
name='some_name',
ext_modules=cythonize(EXTENSIONS, language_level=3)
)
source_files_paths - the list with common c source files
Note: this answer only explains how to avoid multiple compilation of c/cpp-files using libraries-argument of setup-function. It doesn't however explain how to avoid possible problems due to ODR-violation - for that see this SO-post.
Adding libraries-argument to setup will trigger build_clib prior to building of ext_modules (when running setup.py build or setup.py install commands), the resulting static library will also be automatically passed to the linker, when extensions are linked.
For your setup.py, this means:
from setuptools import setup, find_packages, Extension
...
#common c files compiled to a static library:
mylib = ('mylib', {'sources': source_files_paths}) # possible further settings
# no common c-files (taken care of in mylib):
ext_helpers = Extension(name=SRC_DIR + '.wrapper.utils.helpers',
sources=[SRC_DIR + '/wrapper/utils/helpers.pyx'],
include_dirs=[SRC_DIR + '/include/'])
# no common c-files (taken care of in mylib):
ext_all_funcs = Extension(name=SRC_DIR + '.wrapper.all_funcs',
sources=[SRC_DIR + '/wrapper/all_funcs.pyx'],
include_dirs=[SRC_DIR + '/include/'])
EXTENSIONS = [
ext_helpers,
ext_all_funcs,
]
if __name__ == "__main__":
setup(
packages=find_packages(where=SRC_DIR),
zip_safe=False,
name='some_name',
ext_modules=cythonize(EXTENSIONS, language_level=3),
# will be build as static libraries and automatically passed to linker:
libraries = [mylib]
)
To build the extensions inplace one should invoke:
python setupy.py build_clib build_ext --inplace
as build_ext alone is not enough: we need the static libraries to build before they can be used in extensions.
I'm getting started with Gulp and I want to write a task that does the following:
Browse a directory and sub directories to find files using the pattern *.doc.cjsx
Write all the file path found in another file named components.coffee
I'm using gulp-inject. I know that I eventually will need to write to a proper JS file instead of a coffee file (to avoid track a content-generated file on git)
Here is my task: (coffee)
gulp.task 'react-components', ->
gulp.src('src/apis/front/commons/components.coffee')
.pipe(plumber())
.pipe(
inject(
gulp.src(
[
"src/apis/front/commons/button/*.doc.cjsx"
],
read: false
),
{
ignorePath: 'src/apis/front/commons/'
addPrefix: 'require ./' # I need to make the path relative at runtime, I haven't tested this yet because it doesn't generate any output, yet.
starttag: '# inject:components'
}
)
)
.pipe(debug({minimal: false}))
.pipe(gulp.dest('src/apis/front/commons/'))
Here is the components.coffee file:
module.exports = [
require "./button/button.doc.js" # This should be auto-generated inside the starting tag and closing tag.
# inject:components
# endinject
]
Here is the output when I run the task:
[10:15:24] Using gulpfile ~/service/www/hapi-rho/gulpfile.coffee
[10:15:24] Starting 'react-components'...
[10:15:24] gulp-inject 1 files into components.coffee.
[10:15:24] gulp-debug:
cwd: ~/service/www/hapi-rho
base: ~/service/www/hapi-rho/src/apis/front/commons/
path: ~/service/www/hapi-rho/src/apis/front/commons/components.coffee
[10:15:24] gulp-debug: 1 item
[10:15:24] Finished 'react-components' after 31 ms
It seems to be working fine because gulp says that it injected 1 file into components.coffee, if I add another *.doc.cjsx file in the folder then it says it injected two files.
But the content of components.coffee isn't changed, so I'm obviously missing something. Either the starttag isn't found, or it's something else.
Solution:
Here is my solution, based on Sven's answer. The paths have changed since and I'm generating an object instead of an array now, but the principle is the same.
gulp.task 'react-components', ->
gulp.src('src/apis/front/components/components.coffee')
.pipe(plumber())
.pipe(
inject(
gulp.src('src/apis/front/components/**/*.doc.cjsx', read: false),
ignorePath: 'src/apis/front/components/'
starttag: '# inject:components'
endtag: '# endinject'
transform: (filepath, file, i, length) ->
filename = filepath.replace(/cjsx$/, 'js')
suffix = if i + 1 < length then ',' else ''
'"' + filename + '": require ".' + filename + '"'# + suffix
)
)
.pipe(debug(minimal: false))
.pipe gulp.dest('src/apis/front/components/')
First off, you forgot to specify your endtag.
Secondly, you need to provide a transform option. If you don't explicitly provide one the default transform function will be used, which uses the target file type (coffee in your case) and the source file type (cjsx in your case) to choose a sensible transformation for you.
Unfortunately there is no default transformation for the coffee/cjsx pairing available. That means you have to write one yourself.
Here's what that might look like in your case (regular JavaScript, since I'm not well-versed in CoffeeScript):
gulp.task('react-components', function() {
return gulp.src('src/apis/front/commons/components.coffee')
.pipe(plumber())
.pipe(inject(
gulp.src("src/apis/front/commons/button/*.doc.cjsx", {read:false}),
{
ignorePath: 'src/apis/front/commons/',
starttag: '# inject:components',
endtag: '# endinject',
transform: function (filepath, file, i, length) {
return 'require ".' + filepath.replace(/cjsx$/, "js") +
'"' + (i + 1 < length ? ',' : '');
}
}
))
.pipe(debug({minimal: false}))
.pipe(gulp.dest('src/apis/front/commons/'));
});
i am trying to compile my small project (a yesod application with lambdacms) on nixos. However, after using cabal2nix (more precisely cabal2nix project-karma.cabal --sha256=0 --shell > shell.nix) , I am still missing a dependency wrt. postgresql it seems.
My shell.nix file looks like this:
{ nixpkgs ? import <nixpkgs> {}, compiler ? "default" }:
let
inherit (nixpkgs) pkgs;
f = { mkDerivation, aeson, base, bytestring, classy-prelude
, classy-prelude-conduit, classy-prelude-yesod, conduit, containers
, data-default, directory, fast-logger, file-embed, filepath
, hjsmin, hspec, http-conduit, lambdacms-core, monad-control
, monad-logger, persistent, persistent-postgresql
, persistent-template, random, resourcet, safe, shakespeare, stdenv
, template-haskell, text, time, transformers, unordered-containers
, uuid, vector, wai, wai-extra, wai-logger, warp, yaml, yesod
, yesod-auth, yesod-core, yesod-form, yesod-static, yesod-test
}:
mkDerivation {
pname = "karma";
version = "0.0.0";
sha256 = "0";
isLibrary = true;
isExecutable = true;
libraryHaskellDepends = [
aeson base bytestring classy-prelude classy-prelude-conduit
classy-prelude-yesod conduit containers data-default directory
fast-logger file-embed filepath hjsmin http-conduit lambdacms- core
monad-control monad-logger persistent persistent-postgresql
persistent-template random safe shakespeare template-haskell text
time unordered-containers uuid vector wai wai-extra wai-logger warp
yaml yesod yesod-auth yesod-core yesod-form yesod-static
nixpkgs.zlib
nixpkgs.postgresql
nixpkgs.libpqxx
];
libraryPkgconfigDepends = [ persistent-postgresql];
executableHaskellDepends = [ base ];
testHaskellDepends = [
base classy-prelude classy-prelude-yesod hspec monad-logger
persistent persistent-postgresql resourcet shakespeare transformers
yesod yesod-core yesod-test
];
license = stdenv.lib.licenses.bsd3;
};
haskellPackages = if compiler == "default"
then pkgs.haskellPackages
else pkgs.haskell.packages.${compiler};
drv = haskellPackages.callPackage f {};
in
if pkgs.lib.inNixShell then drv.env else drv
The output is as follows:
markus#nixos ~/git/haskell/karma/karma (git)-[master] % nix-shell --command `stack build`
postgresql-libpq-0.9.1.1: configure
ReadArgs-1.2.2: download
postgresql-libpq-0.9.1.1: build
ReadArgs-1.2.2: configure
ReadArgs-1.2.2: build
ReadArgs-1.2.2: install
-- While building package postgresql-libpq-0.9.1.1 using:
/run/user/1000/stack31042/postgresql-libpq-0.9.1.1/.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/setup/setup --builddir=.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/ build --ghc-options " -ddump-hi -ddump-to-file"
Process exited with code: ExitFailure 1
Logs have been written to: /home/markus/git/haskell/karma/karma/.stack-work/logs/postgresql-libpq-0.9.1.1.log
[1 of 1] Compiling Main ( /run/user/1000/stack31042/postgresql-libpq-0.9.1.1/Setup.hs, /run/user/1000/stack31042/postgresql-libpq-0.9.1.1/.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/setup/Main.o )
Linking /run/user/1000/stack31042/postgresql-libpq-0.9.1.1/.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/setup/setup ...
Configuring postgresql-libpq-0.9.1.1...
Building postgresql-libpq-0.9.1.1...
Preprocessing library postgresql-libpq-0.9.1.1...
LibPQ.hsc:213:22: fatal error: libpq-fe.h: No such file or directory
compilation terminated.
compiling .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Database/PostgreSQL/LibPQ_hsc_make.c failed (exit code 1)
command was: /nix/store/9fbfiij3ajnd3fs1zyc2qy0ispbszrr7-gcc-wrapper-4.9.3/bin/gcc -c .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Database/PostgreSQL/LibPQ_hsc_make.c -o .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Database/PostgreSQL/LibPQ_hsc_make.o -fno-stack-protector -D__GLASGOW_HASKELL__=710 -Dlinux_BUILD_OS=1 -Dx86_64_BUILD_ARCH=1 -Dlinux_HOST_OS=1 -Dx86_64_HOST_ARCH=1 -I/run/current-system/sw/include -Icbits -I.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/autogen -include .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/autogen/cabal_macros.h -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/bytes_6elQVSg5cWdFrvRnfxTUrH/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/base_GDytRqRVSUX7zckgKqJjgw/include -I/nix/store/6ykqcjxr74l642kv9gf1ib8v9yjsgxr9-gmp-5.1.3/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/integ_2aU3IZNMF9a7mQ0OzsZ0dS/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/include/
I assume not much is missing, so a pointer would be nice.
What is also weird, that is that "nix-shell" works but following that up with "stack exec yesod devel" tells me
Resolving dependencies...
Configuring karma-0.0.0...
cabal: At least the following dependencies are missing:
classy-prelude >=0.10.2,
classy-prelude-conduit >=0.10.2,
classy-prelude-yesod >=0.10.2,
hjsmin ==0.1.*,
http-conduit ==2.1.*,
lambdacms-core >=0.3.0.2 && <0.4,
monad-logger ==0.3.*,
persistent >=2.0 && <2.3,
persistent-postgresql >=2.1.1 && <2.3,
persistent-template >=2.0 && <2.3,
uuid >=1.3,
wai-extra ==3.0.*,
warp >=3.0 && <3.2,
yesod >=1.4.1 && <1.5,
yesod-auth >=1.4.0 && <1.5,
yesod-core >=1.4.6 && <1.5,
yesod-form >=1.4.0 && <1.5,
yesod-static >=1.4.0.3 && <1.6
When using mysql instead, I am getting
pcre-light-0.4.0.4: configure
mysql-0.1.1.8: configure
mysql-0.1.1.8: build
Progress: 2/59
-- While building package mysql-0.1.1.8 using:
/run/user/1000/stack12820/mysql-0.1.1.8/.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/setup/setup --builddir=.stack-work/dist/x86_64- linux/Cabal-1.22.4.0/ build --ghc-options " -ddump-hi -ddump-to-file"
Process exited with code: ExitFailure 1
Logs have been written to: /home/markus/git/haskell/karma/karma/.stack-work/logs/mysql-0.1.1.8.log
[1 of 1] Compiling Main ( /run/user/1000/stack12820/mysql-0.1.1.8/Setup.lhs, /run/user/1000/stack12820/mysql-0.1.1.8/.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/setup/Main.o )
Linking /run/user/1000/stack12820/mysql-0.1.1.8/.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/setup/setup ...
Configuring mysql-0.1.1.8...
Building mysql-0.1.1.8...
Preprocessing library mysql-0.1.1.8...
In file included from C.hsc:68:0:
include/mysql_signals.h:9:19: fatal error: mysql.h: No such file or directory
#include "mysql.h"
^
compilation terminated.
compiling .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Database/MySQL/Base/C_hsc_make.c failed (exit code 1)
command was: /nix/store/9fbfiij3ajnd3fs1zyc2qy0ispbszrr7-gcc-wrapper-4.9.3/bin/gcc -c .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Database/MySQL/Base/C_hsc_make.c -o .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Database/MySQL/Base/C_hsc_make.o -fno-stack-protector -D__GLASGOW_HASKELL__=710 -Dlinux_BUILD_OS=1 -Dx86_64_BUILD_ARCH=1 -Dlinux_HOST_OS=1 -Dx86_64_HOST_ARCH=1 -I/nix/store/7ppa4k2drrvjk94rb60c1df9nvw0z696-mariadb-10.0.22-lib/include -I/nix/store/7ppa4k2drrvjk94rb60c1df9nvw0z696-mariadb-10.0.22-lib/include/.. -Iinclude -I.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/autogen -include .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/autogen/cabal_macros.h -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/bytes_6elQVSg5cWdFrvRnfxTUrH/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/base_GDytRqRVSUX7zckgKqJjgw/include -I/nix/store/6ykqcjxr74l642kv9gf1ib8v9yjsgxr9-gmp-5.1.3/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/integ_2aU3IZNMF9a7mQ0OzsZ0dS/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/include -I/nix/store/xphvly2zcd6jsc2xklz1zmmz4y0dh3ny-ghc-7.10.2/lib/ghc-7.10.2/include/
-- While building package pcre-light-0.4.0.4 using:
/home/markus/.stack/setup-exe-cache/setup-Simple-Cabal-1.22.4.0-x86_64-linux-ghc-7.10.2 --builddir=.stack-work/dist/x86_64-linux/Cabal-1.22.4.0/ configure --with-ghc=/run/current-system/sw/bin/ghc --user --package-db=clear --package-db=global --package-db=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/pkgdb/ --libdir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/lib --bindir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/bin --datadir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/share --libexecdir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/libexec --sysconfdir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/etc --docdir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/doc/pcre-light-0.4.0.4 --htmldir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/doc/pcre-light-0.4.0.4 --haddockdir=/home/markus/.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/doc/pcre-light-0.4.0.4 --dependency=base=base-4.8.1.0-4f7206fd964c629946bb89db72c80011 --dependency=bytestring=bytestring-0.10.6.0-18c05887c1aaac7adb3350f6a4c6c8ed
Process exited with code: ExitFailure 1
Logs have been written to: /home/markus/git/haskell/karma/karma/.stack-work/logs/pcre-light-0.4.0.4.log
Configuring pcre-light-0.4.0.4...
setup-Simple-Cabal-1.22.4.0-x86_64-linux-ghc-7.10.2: The program 'pkg-config'
version >=0.9.0 is required but it could not be found.
After adding pkgconfig to my global configuration, the build seems to get a little further ahead, so it seems that shell.nix is ignored somewhat.
(Sources for what I tried so far:
https://groups.google.com/forum/#!topic/haskell-stack/_ZBh01VP_fo)
Update: It seems like I overlooked this section of the manual
http://nixos.org/nixpkgs/manual/#using-stack-together-with-nix
However, the first idea that came to mind
(stack --extra-lib-dirs=/nix/store/c6qy7n5wdwl164lnzha7vpc3av9yhnga-postgresql-libpq-0.9.1.1/lib build)
did not work yet, most likely I need to use
--extra-include-dirs or try one of the variations. It seems weird that stack is still trying to build postgresql-libpq in the very same version, though.
Update2: Currently trying out "stack --extra-lib-dirs=/nix/store/1xf77x47d0m23nbda0azvkvj8w8y77c7-postgresql-9.4.5/lib --extra-include-dirs=/nix/store/1xf77x47d0m23nbda0azvkvj8w8y77c7-postgresql-9.4.5/include build" which looks promising. Does not look like the nix-way, but still.
Update3: Still getting
<command line>: can't load .so/.DLL for: /home/markus /.stack/snapshots/x86_64-linux/nightly-2015-11-17/7.10.2/lib/x86_64-linux- ghc-7.10.2/postgresql-libpq-0.9.1.1-ABGs5p1J8FbEwi6uvHaiV6/libHSpostgresql-libpq-0.9.1.1-ABGs5p1J8FbEwi6uvHaiV6-ghc7.10.2.so
(libpq.so.5: cannot open shared object file: No such file or directory) stack build 186.99s user 2.93s system 109% cpu 2:52.76 total
which is strange since libpq.so.5 is contained in /nix/store/1xf77x47d0m23nbda0azvkvj8w8y77c7-postgresql-9.4.5/lib.
An additional
$LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/nix/store/1xf77x47d0m23nbda0azvkvj8w8y77c7-postgresql-9.4.5/lib
does not help either.
Update4:
By the way, yesod devel does the same as stack exec yesod devel. My libraries are downloaded to /nix/store but they are not recognized.
Maybe I need to make "build-nix" work and yesod devel does not work here?
Just for completeness, here is stack.yaml
resolver: nightly-2015-11-17
#run stack setup otherwise!!
# Local packages, usually specified by relative directory name
packages:
- '.'
# Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
extra-deps: [lambdacms-core-0.3.0.2 , friendly-time-0.4, lists-0.4.2, list-extras-0.4.1.4 ]
# Override default flag values for local packages and extra-deps
flags:
karma:
library-only: false
dev: false
# Extra package databases containing global packages
extra-package-dbs: []
Next weekend, I will check out
https://pr06lefs.wordpress.com/2014/09/27/compiling-a-yesod-project-on-nixos/
and other search results.
Funny, because I've just had a similar problem myself - solved it by adding these two lines to stack.yaml:
extra-include-dirs: [/nix/store/jrdvjvf0w9nclw7b4k0pdfkljw78ijgk-postgresql-9.4.5/include/]
extra-lib-dirs: [/nix/store/jrdvjvf0w9nclw7b4k0pdfkljw78ijgk-postgresql-9.4.5/lib/]
You may want to check first which postgresql's path from the /nix/store you should use with include/ and lib/:
nix-build --no-out-link "<nixpkgs>" -A postgresql
And BTW, why do you use nix-shell if you are going to use stack and you have project-karma.cabal available..? Have you considered migrating your project with stack init..?
Looks like stack is trying to build haskellPackages.postgresql-libpq outside of the nix framework.
You probably don't want that to happen. Maybe try to add postgresql-libpq to libraryHaskellDepends?
I'm trying to create an app with Rails 4 that should be usable without internet connection.
I've heard about html5 application cache and the rack-offline gem which is the approach I took.
Now, it seems that it's not working properly on Rails 4 since the /application.manifest only shows:
CACHE MANIFEST
# dd1ba6bba9339ef83f9c1225c70289dd6326d3caae01b0d52b502381030dc78f
404.html
422.html
500.html
NETWORK:
*
Also, I'm using assets precompile so the application.js, application.css and the image files has a fingerprint in their names, something like application-e8cc2fba8275c884c.js.
I made my own solution in a generate_appcahe_manifest.rake file and put it in /lib/tasks folder.
task :generate_appcache_file => ['deploy:precompile_assets', 'html5_manifest']
desc "Create html5 manifest.appcache"
task :html5_manifest => :environment do
puts 'Creating appcache manifest file...'
File.open("public/manifest.appcache", "w") do |f|
f.write("CACHE MANIFEST\n")
f.write("# Version #{Time.now.to_i}\n\n")
f.write("CACHE:\n")
assets = Dir.glob(File.join(Rails.root, 'public/assets/**/*'))
assets.each do |asset|
if File.extname(asset) != '.gz' && File.extname(asset) != '' && File.extname(asset) != '.json'
filename_path = /#{Rails.root.to_s}\/public\/(assets\/.*)/.match(File.absolute_path(asset))[1].to_s
# f.write("assets/#{File.basename(asset)}\n")
f.write(filename_path.concat("\n"))
end
end
f.write("\nNETWORK:\n")
f.write("*\n")
f.write("http://*\n")
f.write("https://*\n")
end
puts 'Done.'
end
namespace :deploy do
task :precompile_assets do
require 'fileutils'
if File.directory?("#{Rails.root.to_s}/public/assets")
FileUtils.rm_r "#{Rails.root.to_s}/public/assets"
end
puts 'Precompiling assets...'
puts `RAILS_ENV=production bundle exec rake assets:precompile`
puts 'Done.'
end
end
So when I run rake generate_appcache_file on the terminal, I got a /public/manifest.appcache file with the compiled assets like this:
CACHE MANIFEST
# Version 1409045103
CACHE:
assets/app/backgrounds/strips-05561384267a3286ab382c852f1e8b0d.jpg
assets/app/backgrounds/team-12e0fc5f670794c4eba3db117fba6746.jpg
assets/app-a7de6b02d1d39b783fe4e7ab7906ec95.css
assets/app-ae958853aa13f9011e35121cbe5b3cfe.js
NETWORK:
*
http://*
https://*
Finally, I call that file on my /app/views/layouts/app.html.erb file:
<!DOCTYPE html>
<html lang="en" manifest="/manifest.appcache">
More info about offline application cache that helps me a lot can be found here.
Following the directions in this page: http://slick.typesafe.com/doc/2.0.0/code-generation.html
we see that something like the following segment of code is required to generate models for mysql tables
val url = "jdbc:mysql://127.0.0.1/SOME_DB_SCHEMA?characterEncoding=UTF-8&useUnicode=true"
val slickDriver = "scala.slick.driver.MySQLDriver"
val jdbcDriver = "com.mysql.jdbc.Driver"
val outputFolder = "/some/path"
val pkg = "com.pligor.server"
scala.slick.model.codegen.SourceCodeGenerator.main(
Array(slickDriver, jdbcDriver, url, outputFolder, pkg)
)
These parameteres are enough for an H2 database as the example in the link has it.
How to include username and password for the MySQL database?
From several links found in the internet and also based on the cvogt's answer this is the minimum that you need to do.
Note that this is a general solution for sbt. If you are dealing with play framework you might find it easier to perform this task with the relevant plugin
First of all you need a new sbt project because of all the library dependencies that are needed to be referenced in order for slick source generator to run.
Create the new sbt project using this tutorial: http://scalatutorials.com/beginner/2013/07/18/getting-started-with-sbt/
Preferably use the method Setup using giter8
If it happens to work with Intellij then you need to create file project/plugins.sbt and insert inside this line: addSbtPlugin("com.hanhuy.sbt" % "sbt-idea" % "1.6.0").
Execute gen-idea in sbt to generate an intellij project.
With giter8 you get an auto-generated file ProjectNameBuild.scala inside project folder. Open this and include at least these library dependencies:
libraryDependencies ++= List(
"mysql" % "mysql-connector-java" % "5.1.27",
"com.typesafe.slick" %% "slick" % "2.0.0",
"org.slf4j" % "slf4j-nop" % "1.6.4",
"org.scala-lang" % "scala-reflect" % scala_version
)
where scala version is the variable private val scala_version = "2.10.3"
Now create the custom source code generator that looks like that:
import scala.slick.model.codegen.SourceCodeGenerator
object CustomSourceCodeGenerator {
import scala.slick.driver.JdbcProfile
import scala.reflect.runtime.currentMirror
def execute(url: String,
jdbcDriver: String,
user: String,
password: String,
slickDriver: String,
outputFolder: String,
pkg: String) = {
val driver: JdbcProfile = currentMirror.reflectModule(
currentMirror.staticModule(slickDriver)
).instance.asInstanceOf[JdbcProfile]
driver.simple.Database.forURL(
url,
driver = jdbcDriver,
user = user,
password = password
).withSession {
implicit session =>
new SourceCodeGenerator(driver.createModel).writeToFile(slickDriver, outputFolder, pkg)
}
}
}
Finally you need to call this execute method inside main project object. Find the file ProjectName.scala that was auto-generated by giter8.
Inside it you will find a println call since this is merely a "hello world" application. Above println call something like that:
CustomSourceCodeGenerator.execute(
url = "jdbc:mysql://127.0.0.1/SOME_DB_SCHEMA?characterEncoding=UTF-8&useUnicode=true",
slickDriver = "scala.slick.driver.MySQLDriver",
jdbcDriver = "com.mysql.jdbc.Driver",
outputFolder = "/some/path",
pkg = "com.pligor.server",
user = "root",
password = "xxxxxyourpasswordxxxxx"
)
This way every time you execute sbt run you are going to generate the Table classes required by Slick automatically
Note that at least for 2.0.1 this is fixed. Just add username and password to the end of the Array as Strings
This has been asked and answered here: https://groups.google.com/forum/#!msg/scalaquery/UcS4_wyrJq0/obLHheIWIXEJ . Currently you need to customize the code generator. A PR for 2.0.1 is in the queue.
My solution is nearly the same as George's answer, but I'll add mine anyway. This is the entire file I use to generate code for my mysql database in an SBT project.
SlickAutoGen.scala
package mypackage
import slick.model.codegen.SourceCodeGenerator
object CodeGen {
def main(args: Array[String]) {
SourceCodeGenerator.main(
Array(
"scala.slick.driver.MySQLDriver",
"com.mysql.jdbc.Driver",
"jdbc:mysql://localhost:3306/mydb",
"src/main/scala/",
"mypackage",
"root",
"" // I don't use a password on localhost
)
)
}
}
build.sbt
// build.sbt --- Scala build tool settings
libraryDependencies ++= List(
"com.typesafe.slick" %% "slick" % "2.0.1",
"mysql" % "mysql-connector-java" % "5.1.24",
...
)
To use this, just modify settings, save in project root directory and run as follows:
$ sbt
> runMain mypackage.CodeGen