Silence 7zip when unpacking

src/post_fetch_helpers.jl

@@ -4,9 +4,9 @@ function unpack_cmd(file,directory,extension,secondary_extension)
     p7zip() do exe7z
         if secondary_extension == ".tar" || extension == ".tgz" || extension == ".tbz"
             # special handling for compressed tarballs
-            return pipeline(`$exe7z x $file -y -so`, `$exe7z x -si -y -ttar -o$directory`)
+            return pipeline(`$exe7z x $file -y -so`, `$exe7z x -si -y -ttar -o$directory -bso0 -bsp0`)
         else
-            return `$exe7z x $file -y -o$directory`
+            return `$exe7z x $file -y -o$directory -bso0 -bsp0`
         end
     end
 end

test/assets/file1.txt

@@ -0,0 +1 @@
+bla

test/post_fetch_helpers.jl

@@ -0,0 +1,35 @@
+using Test
+using DataDeps: unpack, p7zip
+
+# Runs `f()` and returns what would normally be printed to stdout
+function capture_stdout(f)
+    std = stdout
+    r, w = redirect_stdout()
+    try
+        f()
+    finally
+        redirect_stdout(std)
+        close(w)
+    end
+    output = read(r, String)
+    return output
+end
+
+@testset "unpack" begin
+
+    @testset "happy case" begin
+        # Create dummy zip
+        p7zip() do exe7z
+            run(`$exe7z a assets/test.zip assets/file1.txt -bso0 -bsp0`)
+        end
+
+        output = capture_stdout() do
+            unpack("assets/test.zip")
+        end
+        @test output == ""  # silent
+    end
+
+    @testset "sad case" begin
+        @test_throws Exception unpack("assets/non-existent.zip")
+    end
+end

test/runtests.jl

@@ -9,6 +9,7 @@ using Test
         "main",
         "preupload",
         "fetch_helpers",
+        "post_fetch_helpers",
     ]
     @testset "tests" begin
         for filename in tests