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.travis.yml

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+sudo: required
+services:
+  - docker
+before_install:
+  - docker pull surendrajat/twrp-builder:latest
+before_script:
+  - cd $HOME && mkdir twrp
+  - wget -q https://github.com/TwrpBuilder/twrp-sources/releases/download/omni_twrp-5.1.1-cleaned/omni_twrp-5.1.1_cleaned.tar.xz
+    -O $HOME/twrp.tar.xz
+  - tar -xJf twrp.tar.xz --directory $HOME/twrp/ && rm twrp.tar.xz
+script:
+  - cd $HOME/twrp/ && git clone https://github.com/TwrpBuilder/android_device_lenovo_a7020a48.git device/lenovo/a7020a48
+  - git clone https://github.com/TwrpBuilder/android_device_generic_twrpbuilder.git device/generic/twrpbuilder
+  - git clone https://github.com/omnirom/android_bootable_recovery.git bootable/recovery --depth=1
+  - |
+    docker run --rm -i -v "$(pwd):/root/twrp/:rw,z" surendrajat/twrp-builder bash << EOF
+    cd /root/twrp/
+    source build/envsetup.sh && lunch omni_a7020a48-eng && make -j16 recoveryimage
+    exit
+    EOF
+after_success:
+  - export version=$(cat bootable/recovery/variables.h | grep "define TW_MAIN_VERSION_STR" | cut -d '"' -f2)
+  - cp $HOME/twrp/out/target/product/a7020a48/recovery.img $HOME/twrp/TWRP-$version-a7020a48-$(date +"%Y%m%d").img
+
+deploy:
+  skip_cleanup: true
+  provider: releases
+  api_key: "$GIT_OAUTH_TOKEN_TB"
+  file_glob: true
+  file: $HOME/twrp/*.img
+  on:
+    tags: false
+    repo: TwrpBuilder/android_device_lenovo_a7020a48
+    branch: master
+branches:
+  except:
+    - /^(?i:untagged)-.*$/

Android.mk

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+ifneq ($(filter a7020a48,$(TARGET_DEVICE)),)
+
+LOCAL_PATH := device/lenovo/a7020a48/
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
+
+endif

AndroidProducts.mk

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := device/lenovo/a7020a48/
+
+PRODUCT_MAKEFILES := $(LOCAL_PATH)/omni_a7020a48.mk

BoardConfig.mk

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := device/lenovo/a7020a48
+
+TARGET_BOARD_PLATFORM := mt6755
+TARGET_BOOTLOADER_BOARD_NAME := a7020a48
+
+# Recovery
+TARGET_USERIMAGES_USE_EXT4 := true
+BOARD_RECOVERYIMAGE_PARTITION_SIZE := 16777216
+BOARD_FLASH_BLOCK_SIZE := 0
+BOARD_HAS_NO_REAL_SDCARD := true
+BOARD_SUPPRESS_SECURE_ERASE := true
+BOARD_HAS_NO_MISC_PARTITION := true
+BOARD_RECOVERY_SWIPE := true
+BOARD_USES_MMCUTILS := true
+BOARD_SUPPRESS_EMMC_WIPE := true
+TW_INPUT_BLACKLIST := "hbtp_vm"
+TW_INCLUDE_CRYPTO := true
+include $(LOCAL_PATH)/kernel.mk
+include device/generic/twrpbuilder/BoardConfig64.mk
+

kernel.mk

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Kernel
+TARGET_PREBUILT_KERNEL := $(LOCAL_PATH)/kernel
+BOARD_KERNEL_CMDLINE := bootopt=64S3,32N2,64N2 androidboot.selinux=permissive
+BOARD_KERNEL_BASE := 0x40078000
+BOARD_KERNEL_PAGESIZE := 2048
+BOARD_MKBOOTIMG_ARGS := --ramdisk_offset 0x04f88000 --tags_offset 0x03f88000

omni_a7020a48.mk

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+$(call inherit-product, $(SRC_TARGET_DIR)/product/full_base.mk)
+PRODUCT_DEVICE := a7020a48
+PRODUCT_NAME := omni_a7020a48
+PRODUCT_BRAND := lenovo
+PRODUCT_MODEL := Lenovo A7020a48
+PRODUCT_MANUFACTURER := lenovo

recovery.fstab

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+/boot emmc /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/boot
+/data ext4 /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/userdata
+flags=encryptable=/dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/metadata
+/system ext4 /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/system
+/cache ext4 /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/cache
+/misc emmc /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/para
+/recovery emmc /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/recovery
+/external_sd vfat /dev/block/mmcblk1p1 /dev/block/mmcblk1 flags=display="Micro SDcard";storage;wipeingui;removable
+

stock/mke2fs.conf

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+[defaults]
+	base_features = sparse_super,filetype,resize_inode,dir_index,ext_attr
+	blocksize = 4096
+	inode_size = 256
+	inode_ratio = 16384
+
+[fs_types]
+	ext2 = {
+
+	}
+	ext3 = {
+		features = has_journal
+	}
+	ext4 = {
+		features = has_journal,extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize
+		inode_size = 256
+	}

stock/recovery.fstab

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+#
+# Copyright (C) 2018 The TwrpBuilder Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+/boot emmc /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/boot
+/data ext4 /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/userdata flags=encryptable=/dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/metadata
+/system ext4 /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/system
+/cache ext4 /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/cache
+/misc emmc /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/para
+/recovery emmc /dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name/recovery
+/usb-otg auto /dev/block/sda1 flags=display="USB OTG";storage;wipeingui;removable
+/external_sd vfat /dev/block/mmcblk1p1 /dev/block/mmcblk1 flags=display="Micro SDcard";storage;wipeingui;removable
+