Feat: adds lineageos-dl

1 files changed, 98 insertions, 0 deletions

diff --git a/lineageos-dl b/lineageos-dl
new file mode 100755
index 0000000..e515cac
--- /dev/null
+++ b/lineageos-dl
@@ -0,0 +1,98 @@
+#!/bin/bash
+#
+# Download LineageOS images
+#
+
+# Parameters
+BASENAME="`basename $0`"
+DEVICE="$1"
+VERSION="$2"
+DATE="$3"
+FILE="lineage-${VERSION}-${DATE}-nightly-${DEVICE}-signed.zip"
+UPSTREAM="https://download.lineageos.org"
+RECOVERY="lineage-${VERSION}-${DATE}-recovery-${DEVICE}.img"
+RECOVERY_URL="https://mirrorbits.lineageos.org/recovery/${DEVICE}/${DATE}/${RECOVERY}"
+BASE_URL="https://mirrorbits.lineageos.org/full/${DEVICE}/${DATE}/${FILE}"
+DL_PAGE="https://download.lineageos.org/${DEVICE}"
+DL_PATTERN="mirrorbits"
+DL="$HOME/data/distros/lineageos/official/${DEVICE}"
+CWD="`pwd`"
+
+# Determine latest image version
+function lineageos_dl_determine_latest {
+  local type="$1"
+
+  lynx -dump "${UPSTREAM}/${DEVICE}" | grep ${DL_PATTERN} | awk '{ print $2 }' | grep ${type} | sort -r | grep -v  -v '?sha256' | head -1
+}
+
+# Syntax check
+if [ -z "$DATE" ]; then
+  if [ ! -z "$DEVICE" ]; then
+    echo "$BASENAME: trying to guess download URLs and file names..."
+    BASE_URL="`lineageos_dl_determine_latest full`"
+    FILE="`basename $BASE_URL`"
+    RECOVERY_URL="`lineageos_dl_determine_latest recovery`"
+    RECOVERY="`basename $RECOVERY_URL`"
+
+    if [ -z "$BASE_URL" ]; then
+      echo "error: could not automatically determine download URL, please specify version and build date manually"
+      exit 1
+    fi
+  else
+    echo "usage:   $BASENAME <device> [<version <build_date>]"
+    echo "example: $BASENAME cedric"
+    echo "example: $BASENAME cedric 17.1 20210325"
+    exit 1
+  fi
+fi
+
+# Set file names
+HASH="$FILE.sha256"
+RECOVERY_HASH="$RECOVERY.sha256"
+
+# Ensure destination folder exists
+echo "$BASENAME: download destination set to $DL"
+mkdir -p $DL
+
+# Download package
+if [ ! -e "$DL/$FILE" ]; then
+  wget -c $BASE_URL -O $DL/$FILE || exit 1
+else
+  echo "$BASENAME: file $FILE already exists, skipping"
+fi
+
+# Download signature
+if [ ! -e "$DL/$HASH" ]; then
+  wget -c "$BASE_URL?sha256" -O $DL/$HASH || exit 1
+else
+  echo "$BASENAME: file $HASH already exists, skipping"
+fi
+
+# Download recovery
+if [ ! -e "$DL/$RECOVERY" ]; then
+  wget -c $RECOVERY_URL -O $DL/$RECOVERY || exit 1
+else
+  echo "$BASENAME: file $RECOVERY already exists, skipping"
+fi
+
+# Download recovery signature
+if [ ! -e "$DL/$RECOVERY_HASH" ]; then
+  wget -c $RECOVERY_URL?sha256 -O $DL/$RECOVERY_HASH || exit 1
+else
+  echo "$BASENAME: file $RECOVERY_HASH already exists, skipping"
+fi
+
+cd $DL
+echo "$BASENAME: checking hashes..."
+sha256sum -c $HASH
+sha256sum -c $RECOVERY_HASH
+
+# Verify build authenticity
+# https://wiki.lineageos.org/verifying-builds.html
+#git clone https://github.com/LineageOS/update_verifier
+#cd update_verifier
+#pip3 install -r requirements.txt
+echo "$BASENAME: please verify build authenticity: https://wiki.lineageos.org/verifying-builds.html"
+
+# Teardown
+cd $CWD