WIP: Remove installation stepimprove-buildsystem

TODO: Check if the bootloader install target is still usable.

Using the installation step to copy selected artifacts into on folder
was anyway a hack.

This commit shows that the complexity can be reduced by adding copy
targets. The `build/artifacts` folder contains the selected artifacts,
they are always up to date, the user does not have to call the install
step separately and the target definitions do not require
install-related keyword arguments.

8 files changed, 35 insertions, 40 deletions

diff --git a/README.md b/README.md
index 3d81e83..a6dfe0a 100644
--- a/README.md
+++ b/README.md
@@ -25,19 +25,17 @@ The project is built with the Meson build system.
 
 ```
 meson setup build
-cd build
-ninja
-meson install --destdir artifacts
+ninja -C build
 ```
 
 The resulting artifacts can be listed with `tree`.
 
 ```
-tree artifacts
+tree build/artifacts
 ```
 
 These artifacts are organized as static website. It can be opened with Firefox.
 
 ```
-firefox artifacts/index.html
+firefox build/artifacts/index.html
 ```
diff --git a/artifacts/meson.build b/artifacts/meson.build
new file mode 100644
index 0000000..ea6fc39
--- /dev/null
+++ b/artifacts/meson.build
@@ -0,0 +1,22 @@
+artifacts = [
+  index_html,
+  css,
+  schematic,
+  bom,
+  simulation,
+  bootloader,
+  application_signed,
+]
+
+foreach artifact : artifacts
+  custom_target(
+    output: [fs.name(artifact.full_path())],
+    command: [
+      cp,
+      artifact.full_path(),
+      meson.current_build_dir(),
+    ],
+    depends: artifact,
+    build_by_default: true,
+  )
+endforeach
diff --git a/fw/app/meson.build b/fw/app/meson.build
index ddd5aa6..0aefcb3 100644
--- a/fw/app/meson.build
+++ b/fw/app/meson.build
@@ -15,7 +15,6 @@ external_project.add_project(
 )
 
 application = custom_target(
-  'application',
   output: ['application.bin'],
   command: [
     build_zephyr,
@@ -26,7 +25,6 @@ application = custom_target(
 )
 
 application_signed = custom_target(
-  'application_signed',
   output: ['application.signed.bin'],
   command: [
     imgtool,
@@ -40,8 +38,6 @@ application_signed = custom_target(
   ],
   build_by_default: true,
   depends: application,
-  install: true,
-  install_dir: '/',
 )
 
 flash_application = custom_target(
diff --git a/fw/btl/meson.build b/fw/btl/meson.build
index 8ca1eb3..b86c9c9 100644
--- a/fw/btl/meson.build
+++ b/fw/btl/meson.build
@@ -14,7 +14,7 @@ external_project.add_project(
   verbose: true,
 )
 
-bootloader = custom_target('bootloader',
+bootloader = custom_target(
   output: ['bootloader.bin'],
   command: [
     build_zephyr,
@@ -23,8 +23,6 @@ bootloader = custom_target('bootloader',
     '--target-name', 'bootloader.bin',
   ],
   build_by_default: true,
-  install: true,
-  install_dir: '/',
 )
 
 flash_bootloader = custom_target(
diff --git a/fw/sim/meson.build b/fw/sim/meson.build
index 7667f9b..5edcad9 100644
--- a/fw/sim/meson.build
+++ b/fw/sim/meson.build
@@ -13,7 +13,6 @@ external_project.add_project(
 )
 
 simulation = custom_target(
-  'simulation',
   output: ['simulation-linux-amd64.exe'],
   command: [
     build_zephyr,
@@ -22,6 +21,4 @@ simulation = custom_target(
     '--target-name', 'simulation-linux-amd64.exe',
   ],
   build_by_default: true,
-  install: true,
-  install_dir: '/',
 )
diff --git a/meson.build b/meson.build
index eb7f9ad..9b7d7c1 100644
--- a/meson.build
+++ b/meson.build
@@ -1,20 +1,13 @@
-project(
-  'iot-contact',
-  default_options: {
-    'prefix': '/',
-  },
-)
+project('iot-contact')
 
-subdir('tools')
+cp = find_program('cp', required : true)
 
 fs = import('fs')
-css = fs.copyfile(
-  meson.current_source_dir() / 'simple.css' / 'simple.css',
-  'simple.css',
-  install: true,
-  install_dir: '/',
-)
 
+css = fs.copyfile(meson.current_source_dir() / 'simple.css' / 'simple.css')
+
+subdir('tools')
 subdir('fw')
 subdir('pcb')
 subdir('web')
+subdir('artifacts')
diff --git a/pcb/meson.build b/pcb/meson.build
index f320aae..293b2a1 100644
--- a/pcb/meson.build
+++ b/pcb/meson.build
@@ -7,7 +7,7 @@ schematic_files = [
   'processor.kicad_sch',
 ]
 
-schematic = custom_target('schematic',
+schematic = custom_target(
   output: ['schematic.pdf'],
   command: [
     'kicad-cli',
@@ -19,11 +19,9 @@ schematic = custom_target('schematic',
   ],
   depend_files: schematic_files,
   build_by_default: true,
-  install: true,
-  install_dir: '/',
 )
 
-bom = custom_target('bom',
+bom = custom_target(
   output: ['bill-of-materials.csv'],
   command: [
     'kicad-cli',
@@ -37,6 +35,4 @@ bom = custom_target('bom',
   ],
   depend_files: schematic_files,
   build_by_default: true,
-  install: true,
-  install_dir: '/',
 )
diff --git a/web/meson.build b/web/meson.build
index f8c2024..19551a5 100644
--- a/web/meson.build
+++ b/web/meson.build
@@ -1,6 +1 @@
-website = fs.copyfile(
-  meson.current_source_dir() / 'index.html',
-  'index.html',
-  install: true,
-  install_dir: '/',
-)
+index_html = fs.copyfile(meson.current_source_dir() / 'index.html')