Make the zip files reproducible

Running mat2 on the png files and running the following
touch command (which is inspired from the one in the
reproducible builds documentaiton[1]):
    cd tmp && find -print0 | \
    xargs -0r touch --no-dereference \
    --date="@0"
isn't sufficient to make the zip files reproducible as we still end
up with differences that diffoscope is unable to parse:
    +++ tests/data/replicant_banner_alpha.zip
    │┄ Format-specific differences are supported for ZIP archives but no file-specific differences were detected; falling back to a binary diff. file(1) reports: Zip archive data, at least v1.0 to extract, compression method=store
    │┄ Archive contents identical but files differ, possibly due to different compression levels. Falling back to binary comparison.
    @@ -5,15 +5,15 @@
     00000040: 0000 7265 706c 6963 616e 745f 6261 6e6e  ..replicant_bann
     00000050: 6572 5f61 6c70 6861 2072 6570 6c69 6361  er_alpha replica
     00000060: 6e74 5f62 616e 6e65 725f 616c 7068 6120  nt_banner_alpha
     00000070: 310a 7020 3020 3020 7265 706c 6963 616e  1.p 0 0 replican
     00000080: 740a 504b 0304 0a00 0000 0000 0000 2100  t.PK..........!.
     00000090: 0000 0000 0000 0000 0000 0000 0a00 1c00  ................
     000000a0: 7265 706c 6963 616e 742f 5554 0900 0300  replicant/UT....
    -000000b0: 0000 00f2 9392 6175 780b 0001 04e8 0300  ......aux.......
    +000000b0: 0000 00e1 9392 6175 780b 0001 04e8 0300  ......aux.......
     000000c0: 0004 e803 0000 504b 0304 0a00 0000 0000  ......PK........
     000000d0: 0000 2100 5160 ed0a 1740 0000 1740 0000  ..!.Q`...@...@..
     000000e0: 2400 1c00 7265 706c 6963 616e 742f 7265  $...replicant/re
     000000f0: 706c 6963 616e 745f 6261 6e6e 6572 5f61  plicant_banner_a
     00000100: 6c70 6861 2e70 6e67 5554 0900 0300 0000  lpha.pngUT......
     00000110: 0000 0000 0075 780b 0001 04e8 0300 0004  .....ux.........
     00000120: e803 0000 8950 4e47 0d0a 1a0a 0000 000d  .....PNG........
    │   --- replicant_banner_alpha.zip
    ├── +++ tests/data/replicant_banner_alpha.zip
    │ @@ -5,15 +5,15 @@
    │  00000040: 0000 7265 706c 6963 616e 745f 6261 6e6e  ..replicant_bann
    │  00000050: 6572 5f61 6c70 6861 2072 6570 6c69 6361  er_alpha replica
    │  00000060: 6e74 5f62 616e 6e65 725f 616c 7068 6120  nt_banner_alpha
    │  00000070: 310a 7020 3020 3020 7265 706c 6963 616e  1.p 0 0 replican
    │  00000080: 740a 504b 0304 0a00 0000 0000 0000 2100  t.PK..........!.
    │  00000090: 0000 0000 0000 0000 0000 0000 0a00 1c00  ................
    │  000000a0: 7265 706c 6963 616e 742f 5554 0900 0300  replicant/UT....
    │ -000000b0: 0000 00f2 9392 6175 780b 0001 04e8 0300  ......aux.......
    │ +000000b0: 0000 00e1 9392 6175 780b 0001 04e8 0300  ......aux.......
    │  000000c0: 0004 e803 0000 504b 0304 0a00 0000 0000  ......PK........
    │  000000d0: 0000 2100 5160 ed0a 1740 0000 1740 0000  ..!.Q`...@...@..
    │  000000e0: 2400 1c00 7265 706c 6963 616e 742f 7265  $...replicant/re
    │  000000f0: 706c 6963 616e 745f 6261 6e6e 6572 5f61  plicant_banner_a
    │  00000100: 6c70 6861 2e70 6e67 5554 0900 0300 0000  lpha.pngUT......
    │  00000110: 0000 0000 0075 780b 0001 04e8 0300 0004  .....ux.........
    │  00000120: e803 0000 8950 4e47 0d0a 1a0a 0000 000d  .....PNG........

But running mat2 on the produced zip archives results in identical archives
being produced accross several runs.

The downside of that change is that we now depends on mat2 to create the
zip files, and so we'll need to integrating mat2 in Android, or to make
it use the host mat2 if we want to automatize the creation of the zip
images.

[1]https://reproducible-builds.org/docs/archives/
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

9 files changed, 12 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..6e8e8f9
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+.PHONY: check
+
+check:
+	bootanimation/scripts/bootanimation.sh
+	cmp replicant_banner_alpha.zip tests/data/replicant_banner_alpha.zip
+	cmp replicant_banner_black.zip tests/data/replicant_banner_black.zip
+	cmp replicant_banner_white.zip tests/data/replicant_banner_white.zip
+	cmp replicant_icon.zip         tests/data/replicant_icon.zip
+	cmp replicant_logo_alpha.zip   tests/data/replicant_logo_alpha.zip
+	cmp replicant_logo_black.zip   tests/data/replicant_logo_black.zip
+	cmp replicant_logo_white.zip   tests/data/replicant_logo_white.zip
diff --git a/bootanimation/scripts/bootanimation.sh b/bootanimation/scripts/bootanimation.sh
index f9452e0..a0792a0 100755
--- a/bootanimation/scripts/bootanimation.sh
+++ b/bootanimation/scripts/bootanimation.sh
@@ -33,6 +33,7 @@ p 0 0 replicant"
 EOF
 	cd tmp
 	zip -r -0 "../$prefix.zip" ./*
+	mat2 --inplace ../$prefix.zip
 	cd ..
 
 	rm -rf tmp/
diff --git a/tests/data/replicant_banner_alpha.zip b/tests/data/replicant_banner_alpha.zip
new file mode 100644
index 0000000..8664155
--- /dev/null
+++ b/tests/data/replicant_banner_alpha.zip
diff --git a/tests/data/replicant_banner_black.zip b/tests/data/replicant_banner_black.zip
new file mode 100644
index 0000000..3edd01c
--- /dev/null
+++ b/tests/data/replicant_banner_black.zip
diff --git a/tests/data/replicant_banner_white.zip b/tests/data/replicant_banner_white.zip
new file mode 100644
index 0000000..affb524
--- /dev/null
+++ b/tests/data/replicant_banner_white.zip
diff --git a/tests/data/replicant_icon.zip b/tests/data/replicant_icon.zip
new file mode 100644
index 0000000..0074d67
--- /dev/null
+++ b/tests/data/replicant_icon.zip
diff --git a/tests/data/replicant_logo_alpha.zip b/tests/data/replicant_logo_alpha.zip
new file mode 100644
index 0000000..ba3cd3d
--- /dev/null
+++ b/tests/data/replicant_logo_alpha.zip
diff --git a/tests/data/replicant_logo_black.zip b/tests/data/replicant_logo_black.zip
new file mode 100644
index 0000000..9a18e9d
--- /dev/null
+++ b/tests/data/replicant_logo_black.zip
diff --git a/tests/data/replicant_logo_white.zip b/tests/data/replicant_logo_white.zip
new file mode 100644
index 0000000..a2dd052
--- /dev/null
+++ b/tests/data/replicant_logo_white.zip