Add libssh2 to SCons build

.gitmodules

@@ -5,3 +5,6 @@
 [submodule "libgit2"]
 	path = thirdparty/git2/libgit2
 	url = https://github.com/libgit2/libgit2
+[submodule "thirdparty/ssh2/libssh2"]
+	path = thirdparty/ssh2/libssh2
+	url = https://github.com/libssh2/libssh2

godot-git-plugin/SCsub

@@ -41,7 +41,7 @@ if env["platform"] == "osx":
 elif env["platform"] in ("x11", "linux"):
     env["target_path"] += "x11/"
     cpp_library += ".linux"
-    env.Append(LIBS=["ssl", "crypto", "ssh2", "pcre"])
+    env.Append(LIBS=["ssl"])
 
     if env["target"] in ("debug", "d"):
         env.Append(CCFLAGS = ["-fPIC", "-g3","-Og", "-std=c++17"])
@@ -56,7 +56,7 @@ elif env["platform"] == "windows":
     env.Append(ENV = os.environ)
 
     env.Append(CCFLAGS = ["-DWIN32", "-D_WIN32", "-D_WINDOWS", "-W3", "-GR", "-D_CRT_SECURE_NO_WARNINGS", "/std:c++17"])
-    env.Append(LIBS=["Advapi32", "Winhttp", "Rpcrt4", "crypt32", "OLE32"])
+    env.Append(LIBS=["Advapi32", "Winhttp", "Rpcrt4", "crypt32", "OLE32", "user32"])
     if env["target"] in ("debug", "d"):
         env.Append(CCFLAGS = ["-EHsc", "-D_DEBUG", "-MDd", "/DEBUG"])
         env["PDB"] = env["target_name"] + ".pdb"
@@ -73,11 +73,11 @@ if env["platform"] == "osx":
 else:
     cpp_library += "." + str(bits)
 
-env.Append(CPPPATH=[".", "src/"])
-env.Append(CPPPATH=[godot_headers_path, cpp_bindings_path + "include/", cpp_bindings_path + "include/core/", cpp_bindings_path + "include/gen/"])
-env.Append(CPPPATH=["../thirdparty/git2/libgit2/include/"])
-env.Append(LIBPATH=[cpp_bindings_path + "bin/", "../thirdparty/bin/"])
-env.Append(LIBS=[cpp_library, "git2"])
+env.Append(CPPPATH = [".", "src/"])
+env.Append(CPPPATH = [godot_headers_path, cpp_bindings_path + "include/", cpp_bindings_path + "include/core/", cpp_bindings_path + "include/gen/"])
+env.Append(CPPPATH = ["../thirdparty/git2/libgit2/include/"])
+env.Append(LIBPATH = [cpp_bindings_path + "bin/", "../thirdparty/bin/"])
+env.Append(LIBS = [cpp_library, "git2", "ssh2"])
 
 library = env.SharedLibrary(
     target = env["target_path"] + env["target_name"],

thirdparty/SCsub

@@ -1,3 +1,4 @@
 #!/usr/bin/env python
 
+SConscript("ssh2/SCsub")
 SConscript("git2/SCsub")

thirdparty/git2/SCsub

@@ -42,14 +42,15 @@ env_git.Prepend(
         "libgit2/deps/http-parser/",
         "libgit2/deps/pcre/",
         "libgit2/deps/zlib/",
+        "../ssh2/libssh2/include/",
     ]
 )
 
 env_git.Prepend(
     CPPDEFINES=[
         "GIT_THREADS",
-        #"GIT_SSH",
-        #"GIT_SSH_MEMORY_CREDENTIALS",
+        "GIT_SSH",
+        "GIT_SSH_MEMORY_CREDENTIALS",
         "LIBGIT2_NO_FEATURES_H",
         "GIT_SHA1_COLLISIONDETECT",
         "GIT_HTTPS",
@@ -83,6 +84,8 @@ if env_git["platform"] == "windows":
             "PCREGREP_BUFSIZE",
             ("MAX_NAME_SIZE", "32"),
             ("MAX_NAME_COUNT", "10000"),
+            "HAVE_WINCNG",
+            "LIBSSH2_WINCNG"
         ]
     )
 
@@ -116,5 +119,6 @@ if env_git["platform"] in ["x11", "osx"]:
         ]
     )
 
-env_git["PDB"] = "git2.pdb"
+env.Append(LIBPATH=["../bin/"])
+
 env_git.StaticLibrary(target = "../bin/" + "git2", source = libgit2_sources)

thirdparty/ssh2/SCsub

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+
+# Adopted from https://github.com/nodegit/nodegit/blob/4561dcb7c120474a4553baa27e4c4c2f4be23a2b/vendor/libgit2.gyp
+
+Import("env")
+
+env_ssh2 = env.Clone()
+
+# Thirdparty source files.
+libssh2_sources = [
+    "libssh2/src/agent.c",
+    "libssh2/src/bcrypt_pbkdf.c",
+    "libssh2/src/blowfish.c",
+    "libssh2/src/crypt.c",
+    "libssh2/src/keepalive.c",
+    "libssh2/src/libgcrypt.c",
+    "libssh2/src/openssl.c",
+    "libssh2/src/publickey.c",
+    "libssh2/src/sftp.c",
+    "libssh2/src/version.c",
+    "libssh2/src/channel.c",
+    "libssh2/src/global.c",
+    "libssh2/src/kex.c",
+    "libssh2/src/mac.c",
+    "libssh2/src/packet.c",
+    "libssh2/src/scp.c",
+    "libssh2/src/transport.c",
+    "libssh2/src/comp.c",
+    "libssh2/src/hostkey.c",
+    "libssh2/src/knownhost.c",
+    "libssh2/src/misc.c",
+    "libssh2/src/pem.c",
+    "libssh2/src/session.c",
+    "libssh2/src/userauth.c",
+]
+
+env_ssh2.Prepend(
+    CPPPATH=[
+        "libssh2/include/"
+        "libssh2/src/"
+    ]
+)
+
+env_ssh2.Prepend(
+    CPPDEFINES=[
+    ]
+)
+
+if env_ssh2["platform"] == "windows":
+    env_ssh2.Append(
+        CPPPATH=[
+            "libssh2/include/",
+            "libssh2/win32/"
+        ]
+    )
+    libssh2_sources += [ "libssh2/src/agent_win.c", "libssh2/src/wincng.c"]
+    env_ssh2.Append(
+        CPPDEFINES=[
+            "LIBSSH2_WINCNG",
+            "HAVE_WINCNG"
+        ]
+    )
+    env_ssh2.Append(LIBS = ["crypt32", "user32"])
+
+if env_ssh2["platform"] == "osx":
+    env_ssh2.Append(
+        CPPPATH=[
+            "libssh2/os400/"
+        ]
+    )
+    libssh2_sources += ["libssh2/os400/" + "*.c"]
+    env_ssh2.Append(
+        CPPDEFINES=[]
+    )
+
+env_ssh2.StaticLibrary(target = "../bin/" + "ssh2", source = libssh2_sources)