getprop("ro.product.device") == "dipper" || abort("E3004: This package is for \"dipper\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: Xiaomi/dipper/dipper:9/PKQ1.180729.001/9.9.26:user/release-keys");
ui_print("Target: Xiaomi/dipper/dipper:9/PKQ1.180729.001/9.9.27:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Xiaomi/dipper/dipper:9/PKQ1.180729.001/9.9.26:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Xiaomi/dipper/dipper:9/PKQ1.180729.001/9.9.27:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Xiaomi/dipper/dipper:9/PKQ1.180729.001/9.9.26:user/release-keys or Xiaomi/dipper/dipper:9/PKQ1.180729.001/9.9.27:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
show_progress(0.100000, 5);
apply_patch_check("EMMC:/dev/block/bootdevice/by-name/boot:50955594:f82ceb97a3b1f29f5a1c50b15984fa4c8709339a:50955594:c03d01ba04819e03202ca51ce8a8f0463e94d3bb") || abort("E3005: \"EMMC:/dev/block/bootdevice/by-name/boot:50955594:f82ceb97a3b1f29f5a1c50b15984fa4c8709339a:50955594:c03d01ba04819e03202ca51ce8a8f0463e94d3bb\" has unexpected contents.");
apply_patch_space(50955594) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1("/dev/block/bootdevice/by-name/system", "56,1,208,223,547,8303,8311,8316,8317,8360,8361,8737,8739,8748,8749,8881,8882,8901,8902,14781,14782,14785,14786,15715,17177,20489,20490,21748,21750,24567,24568,30843,30844,32768,32770,36484,36485,39498,39499,41902,98306,98495,163842,164031,229378,229567,294914,295103,524294,524295,524296,528344,717223,774155,780254,780261,786432") == "d472ffed1a2020350323b5a5104e6be1f0a84005" || block_image_verify("/dev/block/bootdevice/by-name/system", package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block("/dev/block/bootdevice/by-name/system");
ifelse (block_image_recover("/dev/block/bootdevice/by-name/system", "56,1,208,223,547,8303,8311,8316,8317,8360,8361,8737,8739,8748,8749,8881,8882,8901,8902,14781,14782,14785,14786,15715,17177,20489,20490,21748,21750,24567,24568,30843,30844,32768,32770,36484,36485,39498,39499,41902,98306,98495,163842,164031,229378,229567,294914,295103,524294,524295,524296,528344,717223,774155,780254,780261,786432") && block_image_verify("/dev/block/bootdevice/by-name/system", package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1("/dev/block/bootdevice/by-name/vendor", "194,1,73,80,210,4112,4151,4153,4154,4156,4157,4159,4160,4162,4163,8519,8520,8544,8545,9394,9429,9447,9448,16540,16541,17868,17928,27072,27073,28832,28833,29077,31008,31775,31776,32768,32770,42192,42193,50518,50519,54143,54144,59105,59106,60850,60851,76343,76344,79697,79698,93914,93916,94720,94721,95711,95712,98304,98306,99903,102264,102550,102551,102575,102576,103937,103943,103978,103979,104876,104921,104939,104940,106293,106374,110722,110723,112181,112258,122667,122668,124907,124908,136766,136767,142450,142451,146229,146230,147274,147275,162451,163842,163904,165574,167405,167406,167470,167472,169725,169727,169748,169749,169756,169757,169761,169762,169764,169765,169868,169871,169948,169950,170057,170058,170350,170351,171349,171350,172026,172027,172986,172993,173109,173110,173131,173176,173182,173183,174093,174097,174616,174621,176679,176680,177182,177183,177210,177211,180550,180553,180571,180572,180617,180618,180636,180637,181176,181177,181188,181189,181231,181232,181303,181305,181356,181357,181909,181910,181977,181978,181997,181998,183932,183934,189049,189050,189481,189482,190012,190013,190043,190044,190150,190152,203873,203875,212610,212611,216072,216073,223032,223033,225294,225295,229376,229378,246467,246468,247953,247966,258044,260078,260085,262144") == "cb9e17d029551c00e209a891f95cfed1b4fa5198" || block_image_verify("/dev/block/bootdevice/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block("/dev/block/bootdevice/by-name/vendor");
ifelse (block_image_recover("/dev/block/bootdevice/by-name/vendor", "194,1,73,80,210,4112,4151,4153,4154,4156,4157,4159,4160,4162,4163,8519,8520,8544,8545,9394,9429,9447,9448,16540,16541,17868,17928,27072,27073,28832,28833,29077,31008,31775,31776,32768,32770,42192,42193,50518,50519,54143,54144,59105,59106,60850,60851,76343,76344,79697,79698,93914,93916,94720,94721,95711,95712,98304,98306,99903,102264,102550,102551,102575,102576,103937,103943,103978,103979,104876,104921,104939,104940,106293,106374,110722,110723,112181,112258,122667,122668,124907,124908,136766,136767,142450,142451,146229,146230,147274,147275,162451,163842,163904,165574,167405,167406,167470,167472,169725,169727,169748,169749,169756,169757,169761,169762,169764,169765,169868,169871,169948,169950,170057,170058,170350,170351,171349,171350,172026,172027,172986,172993,173109,173110,173131,173176,173182,173183,174093,174097,174616,174621,176679,176680,177182,177183,177210,177211,180550,180553,180571,180572,180617,180618,180636,180637,181176,181177,181188,181189,181231,181232,181303,181305,181356,181357,181909,181910,181977,181978,181997,181998,183932,183934,189049,189050,189481,189482,190012,190013,190043,190044,190150,190152,203873,203875,212610,212611,216072,216073,223032,223033,225294,225295,229376,229378,246467,246468,247953,247966,258044,260078,260085,262144") && block_image_verify("/dev/block/bootdevice/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Patching boot image...");
show_progress(0.100000, 10);
apply_patch("EMMC:/dev/block/bootdevice/by-name/boot:50955594:f82ceb97a3b1f29f5a1c50b15984fa4c8709339a:50955594:c03d01ba04819e03202ca51ce8a8f0463e94d3bb",
            "-", c03d01ba04819e03202ca51ce8a8f0463e94d3bb, 50955594,
            f82ceb97a3b1f29f5a1c50b15984fa4c8709339a, package_extract_file("patch/boot.img.p")) || abort("Failed to apply patch \"patch/boot.img.p \".");
show_progress(0.600000, 600);
ui_print("Patching system image after verification.");
block_image_update("/dev/block/bootdevice/by-name/system", package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");
ui_print("Patching vendor image after verification.");
block_image_update("/dev/block/bootdevice/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");

# ---- radio update tasks ----

ui_print("Patching firmware images...");
package_extract_file("firmware-update/abl.elf", "/dev/block/bootdevice/by-name/abl_a");
package_extract_file("firmware-update/abl.elf", "/dev/block/bootdevice/by-name/abl_b");
show_progress(0.100000, 2);
