add install var

README.md

@@ -23,6 +23,14 @@ sudo ninja install -C build
 valac --pkg pluie-echo-0.1  main.vala -o echo
 ```
 
+## Docker
+
+a demo image is available on docker hub. you can run a container with :
+
+```
+docker run --rm -it pluie/libecho
+```
+
 ## Usage
 
 #### playing with colors
@@ -38,6 +46,29 @@ int main (string[] args)
 }
 ```
 
+#### playing with ColorConf
+
+compile main.vala
+```
+valac --pkg pluie-echo-0.1  main.vala -o echo
+```
+
+run ./echo
+
+![ColorConf 1 code](https://www.meta-tech.academy/img/libpluie-echo_sample_colorconf1.png)
+
+then, change in resources/echo.ini :  
+```
+title      =  15,1,97
+title_item = 220,1
+title_sep  =  97,1
+```
+
+run echo again :
+
+![ColorConf 2 code](https://www.meta-tech.academy/img/libpluie-echo_sample_colorconf2.png)
+
+
 #### init OutputFormatter
 ```
 using GLib;
@@ -45,8 +76,7 @@ using Pluie;
 
 int main (string[] args)
 {
-    OutputFormatter of;  
-    Echo.init (true /* enable tracing */, "resources/echo.ini", out of);
+    var of = Echo.init (true /* enable tracing */, "resources/echo.ini" /* optional config file */);
     Dbg.in (Log.METHOD);
     
     of.echo (
@@ -56,25 +86,27 @@ int main (string[] args)
         true,
         // indent all line
         true,
-        // set color with Pluie.ECHO enum listing all defined styles
+        // set color with Pluie.ECHO enum (listing all defined styles in echo.ini)
         ECHO.ACTION
     );
     ...
+
+    Dbg.out (Log.METHOD);
     return 0;
 }
 ```
 
 #### more samples
 
-![Sample 1 code](https://www.meta-tech.academy/img/libpluie-echo_sample_code1.png)
-![Sample 1 output](https://www.meta-tech.academy/img/libpluie-echo_sample1.png)
-![Sample 2 code](https://www.meta-tech.academy/img/libpluie-echo_sample_code2.png)
-![Sample 2 output](https://www.meta-tech.academy/img/libpluie-echo_sample2.png)
+![Sample 1 code](https://www.meta-tech.academy/img/libpluie-echo_sample_code1.png?tmp=1)
+![Sample 1 output](https://www.meta-tech.academy/img/libpluie-echo_sample1.png?tmp=1)
+![Sample 2 code](https://www.meta-tech.academy/img/libpluie-echo_sample_code2.png?tmp=1)
+![Sample 2 output](https://www.meta-tech.academy/img/libpluie-echo_sample2.png?tmp=1)
 
 
 ## Configuration
 
-configuration file is installed on {prefix}/share/pluie/echo.ini
+configuration file is installed by default on {prefix}/share/pluie/echo.ini
 
 ```
 [Term]

install.vala.in

@@ -0,0 +1,9 @@
+namespace Pluie
+{  
+    namespace Echo
+    {  
+        protected const string INSTALL_PATH = "@INSTALL_PATH@";
+        protected const string DATA_PATH    = "@DATA_PATH@";
+        protected const string VERSION      = "@VERSION@";
+    }
+}

main.vala

@@ -7,9 +7,7 @@ errordomain MyError {
 
 int main (string[] args)
 {
-    OutputFormatter of;  
-    Echo.init (true, "resources/echo.ini", out of);
-
+    var of = Echo.init (true, "resources/echo.ini");
     Dbg.in (Log.METHOD, null, Log.LINE, Log.FILE);
 
     of.title ("MyApp", "0.2.2", "a-sansara");

meson.build

@@ -14,13 +14,20 @@ conf.set('VERSION'     , version)
 conf.set('INSTALL_PATH', bindir)
 conf.set('DATA_PATH'   , datadir)
 
+configure_file(
+  input: 'install.vala.in',
+  output: 'install.vala',
+  configuration: conf
+)
+
 sources       = [
     'src/Pluie.Color.vala',
     'src/Pluie.ColorConf.vala',
     'src/Pluie.Dbg.vala',
     'src/Pluie.global.vala',
     'src/Pluie.OutputFormatter.vala',
-    'src/Pluie.Sys.Cmd.vala'
+    'src/Pluie.Sys.Cmd.vala',
+    'build/install.vala'
 ]
 
 install_data('resources/echo.ini', install_dir : datadir)
@@ -35,7 +42,7 @@ libpluie_echo = library('pluie-echo-' + version, sources,
 pkgconfig = import('pkgconfig')
 pkgconfig.generate(libraries: libpluie_echo,
                    requires: 'glib-2.0 gobject-2.0',
-                   variables: 'datarootdir=${prefix}/share\ndatadir=${datarootdir}/pluie',
+                   variables: 'datarootdir='+join_paths('${prefix}', get_option('datadir'))+'\ndatadir='+join_paths('${datarootdir}', 'pluie'),
                    version: version,
                    name: 'libpluie-echo',
                    filebase: 'pluie-echo-' + version,

resources/echo.ini

@@ -12,9 +12,9 @@ option     =  37,1
 option_sep = 158
 arg        =  97,1
 arg_sep    = 147,1
-title      =  15,1,24
+title      =  15,1,97
 title_item = 220,1
-title_sep  =  24,1
+title_sep  =  97,1
 section    =  37
 sep        =  59
 item       = 215,1

src/Pluie.global.vala

@@ -35,11 +35,14 @@ namespace Pluie
     
     namespace Echo
     {
-        public void init (bool debug, string path, out OutputFormatter of)
+        public static OutputFormatter of;
+
+        public OutputFormatter init (bool debug, string? path = null)
         {
-            var conf = new ColorConf (path);
-            of       = new OutputFormatter (conf);
-            Dbg.init (of, debug);
+            var conf = new ColorConf (path ?? Path.build_filename (DATA_PATH, "echo.ini"));
+            Echo.of = new OutputFormatter (conf);
+            Dbg.init (Echo.of, debug);
+            return Echo.of;
         }
     }
 }