update snapcraft.yaml for core18 and latest features (#11300)

Removing some of the complexity, together with the install and
configure hook.

Signed-off-by: Sergio Schvezov <sergio.schvezov@canonical.com>

snap/snapcraft.yaml

@@ -6,93 +6,55 @@ description: |
   an independent binary distribution across ALL platforms that Go supports,
   including Linux, Mac OS X, Windows and ARM.
 
-type: app
 icon: public/img/gitea-lg.png
 confinement: strict
-grade: stable
+base: core18
+adopt-info: gitea
 
-version: 'git'
+environment:
+  GITEA_CUSTOM: "$SNAP_COMMON"
+  GITEA_WORK_DIR: "$SNAP_DATA"
 
 apps:
   gitea:
-    command: bin/gitea
+    command: gitea
     plugs: [network, network-bind]
   web:
-    command: bin/gitea web
+    command: gitea web
     daemon: simple
     plugs: [network, network-bind]
-  serv:
-    command: bin/gitea serv
-    plugs: [network, network-bind]
-  admin:
-    command: bin/gitea admin
-    plugs: [network, network-bind]
-  cert:
-    command: bin/gitea cert
-  hook:
-    command: bin/gitea hook
-    plugs: [network, network-bind]
   dump:
-    command: bin/gitea dump
+    command: gitea dump
     plugs: [home]
-  help:
-    command: bin/gitea --help
   version:
-    command: bin/gitea --version
+    command: gitea --version
   sqlite:
     command: usr/bin/sqlite3
 
 parts:
-  go:
-    source-tag: go1.8.3
-    prime:
-      - -*
 
   gitea:
-    plugin: nil
+    plugin: make
     source: .
-    source-type: git
-    after: [ go ]
     stage-packages: [ git, sqlite3, openssh-client ]
-    build-packages: [ libpam0g-dev, libsqlite3-dev]
-    prepare: |
-      export PATH=$SNAPCRAFT_PART_INSTALL/../../go/install/bin:$PATH
-      export GOPATH=$SNAPCRAFT_PART_INSTALL/../go
-      export bld=$SNAPCRAFT_PART_INSTALL/../build
-      export src=$SNAPCRAFT_PART_INSTALL/../src
-      mkdir -p $GOPATH/src/code.gitea.io/gitea
-      cp -r $src/* $GOPATH/src/code.gitea.io/gitea
-    build: |
-      export PATH=$SNAPCRAFT_PART_INSTALL/../go/bin/:$SNAPCRAFT_PART_INSTALL/../../go/install/bin:$PATH
-      export GOPATH=$SNAPCRAFT_PART_INSTALL/../go
-      cd $GOPATH/src/code.gitea.io/gitea
+    build-packages: [ git, libpam0g-dev, libsqlite3-dev]
+    build-snaps: [ go, node/14/stable ]
+    build-environment:
+      - LDFLAGS: ""
+    override-pull: |
+      snapcraftctl pull
+
+      version="$(git describe --always | sed -e 's/-/+git/;y/-/./')"
+      [ -n "$(echo $version | grep "+git")" ] && grade=devel || grade=stable
+      snapcraftctl set-version "$version"
+      snapcraftctl set-grade "$grade"
+
+    override-build: |
+      set -x
       TAGS="bindata sqlite sqlite_unlock_notify pam cert" make build
-    install: |
-      # Set Convenience Variables
-      src=$SNAPCRAFT_PART_INSTALL/../go/src/code.gitea.io/gitea
-      giteaBase=$SNAPCRAFT_PART_INSTALL/gitea
-      scurrent=/var/snap/$SNAPCRAFT_PROJECT_NAME/current
-      scommon=/var/snap/$SNAPCRAFT_PROJECT_NAME/common
-      # Copy build artifact and necessary files
-      mkdir -p $giteaBase/conf
-      # Workaround for gitea ignoring APP_DATA_PATH in app.ini after snap update.
-      ln -s $scurrent/custom $giteaBase/custom
-      ln -s $scommon/data $giteaBase/data
-      # Workaround for cmd/certs not knowing how to put files somewhere else
-      ln -s $scurrent/cert.pem $giteaBase/cert.pem
-      ln -s $scurrent/key.pem $giteaBase/key.pem
-      # Copy static content
-      mkdir -p $SNAPCRAFT_PART_INSTALL/static
-      cp    $src/gitea             $giteaBase/
-      cp -r $src/LICENSE \
-            $src/templates \
-            $src/public \
-            $src/scripts \
-            $SNAPCRAFT_PART_INSTALL/static/
-      cp -r $src/README.md \
-            $src/LICENSE  \
-            $src/custom \
-            $SNAPCRAFT_PART_INSTALL/
+      install -D gitea "${SNAPCRAFT_PART_INSTALL}/gitea"
+      cp -r options "${SNAPCRAFT_PART_INSTALL}/"
+
     prime:
       - -etc
       - -usr/lib/systemd
@@ -101,20 +63,7 @@ parts:
       - -usr/lib/x86_64-linux-gnu/krb5
       - -usr/share/apport
       - -usr/share/bash-completion
-      - -usr/share/doc
       - -usr/share/git-core/contrib
       - -usr/share/man
       - -usr/share/upstart
       - -var
-
-  helpers:
-    plugin: dump
-    source: snap/helpers
-    organize:
-      simple_launcher.sh: bin/gitea
-      app.ini: gitea/snapApp.ini
-      configuration.sh: bin/gconfig
-    prime:
-      - bin/gitea
-      - bin/gconfig
-      - gitea/snapApp.ini