Difference between revisions of "Create snap package"

From Lazarus wiki
Line 59: Line 59:
 
     override-build: |
 
     override-build: |
 
       lazbuild --build-mode=Release myapp.lpi
 
       lazbuild --build-mode=Release myapp.lpi
      ROOT=/root/parts/myapp/install
+
       install -d -m 755 $SNAPCRAFT_PART_INSTALL/usr/share/myapp
       install -d -m 755 $ROOT/usr/share/myapp
+
       install -s -m 755 myapp $SNAPCRAFT_PART_INSTALL/usr/share/myapp
       install -s -m 755 myapp $ROOT/usr/share/myapp
+
       install -d -m 755 $SNAPCRAFT_PART_INSTALL/usr/share/applications
       install -d -m 755 $ROOT/usr/share/applications
+
       install -m 755 Install/deb/myapp.desktop $SNAPCRAFT_PART_INSTALL/usr/share/applications
       install -m 755 Install/deb/myapp.desktop $ROOT/usr/share/applications
 
 
     stage:
 
     stage:
 
       - etc
 
       - etc

Revision as of 18:38, 2 June 2021

Create snapcraft.yaml

  • Install snapcraft to your Ubuntu machine with sudo apt install snapcraft
  • Create snap subdirectory in your project
  • Execute snapcraft init to create snap/snapcraft.yaml initial file
  • Example file:
name: myapp
version: '1.0.0'
summary: Short description of package.
description: |
  Some more detailed multi-line description.
confinement: devmode
base: core20
grade: devel

parts:
  myapp:
    plugin: nil
    source: .
    source-type: local
    build-packages: 
    - fpc
    - lazarus
    - lcl
    - lcl-utils
    stage-packages:
    # Autodetected dependencies
    - libatk1.0-0
    - libcairo2
    - libdatrie1
    - libfontconfig1
    - libfreetype6
    - libfribidi0
    - libgdk-pixbuf2.0-0
    - libgraphite2-3
    - libgtk2.0-0
    - libharfbuzz0b
    - libpango-1.0-0
    - libpangocairo-1.0-0
    - libpangoft2-1.0-0
    - libpixman-1-0
    - libpng16-16
    - libthai0
    - libx11-6
    - libxau6
    - libxcb-render0
    - libxcb-shm0
    - libxcb1
    - libxcomposite1
    - libxcursor1
    - libxdamage1
    - libxdmcp6
    - libxext6
    - libxfixes3
    - libxi6
    - libxinerama1
    - libxrandr2
    - libxrender1
    override-build: |
      lazbuild --build-mode=Release myapp.lpi
      install -d -m 755 $SNAPCRAFT_PART_INSTALL/usr/share/myapp
      install -s -m 755 myapp $SNAPCRAFT_PART_INSTALL/usr/share/myapp
      install -d -m 755 $SNAPCRAFT_PART_INSTALL/usr/share/applications
      install -m 755 Install/deb/myapp.desktop $SNAPCRAFT_PART_INSTALL/usr/share/applications
    stage:
      - etc
      - lib
      - usr
      - usr/share/myapp
      - usr/share/applications/myapp.desktop

apps:
  myapp:
    command: usr/share/myapp/myapp
    desktop: usr/share/applications/myapp.desktop
    plugs:
      - home
      - desktop
      - x11
  • Build snap using snapcraft command
  • Install newly created snap with sudo snap install --dangerous --devmode myapp_1.0.0_amd64.snap

Publish your package in Snap Store

  • snapcraft register
  • snapcraft login
  • snapcraft push myapp.snap
  • snapcraft release myapp 1 edge
  • Now your snap should be released and available on snapcraft.io store.

Debug snap

To get to console of snap virtual filesystem use:

snap run --shell myapp
cd $SNAP

Type exit to leave snap environment. See Debugging snaps for more information.

Sound support

Snap supports sound through audio-playback plug.

apps:
  myapp:
    plugs:
      - audio-playback

You can play wav and mp3 files from command line using play command. See Play Sound Multiplatform. Then you also need to add additional stage-packages to myapp part and setup sox player for pulseaudio:

parts:
  myapp:
    stage-packages:    
    - sox
    - libsox-fmt-mp3
    - libsox-fmt-pulse
    - libpulse0 

environment:
  LD_LIBRARY_PATH: $SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/pulseaudio
  PULSE_SERVER: unix:/run/user/1000/pulse/native

layout:
  /usr/lib/$SNAPCRAFT_ARCH_TRIPLET/sox:
    bind: $SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/sox

snapcraft.yaml file in non-standard subdirectory

Snapcraft normally expect snapcraft.yaml file in snap directory. If your project has packaging for multiple other packaging formats, then you need to use build workaround script. Such shell script can put into directory like myapp/install/snap/local as build.sh file.

#!/bin/bash
ln -s install/snap ../../../snap
pushd ../../..
snapcraft
popd
rm ../../../snap

Register app in snap store

Setup build on Launchpad

Snap packages can be built automatically on Launchpad. Open Create snap package link form your application branch page.

See also

External links