[buildcore] Add type annotations to pybb

deps/buildcore/scripts/pybb.py

@@ -17,25 +17,27 @@ import subprocess
 import sys
 
 
-def cat(path):
-    try:
-        with open(path) as f:
-            data = f.read()
-            print(data)
-        return 0
-    except FileNotFoundError:
-        sys.stderr.write('cat: {}: no such file or directory\n'.format(path))
-        return 1
+def cat(paths: str) -> int:
+    for path in paths:
+        try:
+            with open(path) as f:
+                data = f.read()
+                sys.stdout.write(data)
+        except FileNotFoundError:
+            sys.stderr.write('cat: {}: no such file or directory\n'.format(path))
+            return 1
+    sys.stdout.write('\n')
+    return 0
 
 
-def mkdir(path):
+def mkdir(path: str) -> int:
     if not os.path.exists(path) and os.path.isdir(path):
         os.mkdir(path)
     return 0
 
 
 # this exists because Windows is utterly incapable of providing a proper rm -rf
-def rm(path):
+def rm(path: str) -> int:
     if (os.path.exists(path) or os.path.islink(path)) and not os.path.isdir(path):
         os.remove(path)
     elif os.path.isdir(path):
@@ -43,7 +45,7 @@ def rm(path):
     return 0
 
 
-def ctest_all():
+def ctest_all() -> int:
     base_path = sys.argv[2]
     if not os.path.isdir(base_path):
         # no generated projects
@@ -58,7 +60,7 @@ def ctest_all():
     return 0
 
 
-def cmake_build(base_path, target):
+def cmake_build(base_path: str, target: str) -> int:
     if not os.path.isdir(base_path):
         # nothing to build
         return 0
@@ -73,20 +75,19 @@ def cmake_build(base_path, target):
 
 
 def main():
+    err = 0
     if sys.argv[1] == 'mkdir':
-        mkdir(sys.argv[2])
+        err = mkdir(sys.argv[2])
     elif sys.argv[1] == 'rm':
         for i in range(2, len(sys.argv)):
             rm(sys.argv[i])
     elif sys.argv[1] == 'ctest-all':
         err = ctest_all()
-        sys.exit(err)
     elif sys.argv[1] == 'cmake-build':
         err = cmake_build(sys.argv[2], sys.argv[3] if len(sys.argv) > 3 else None)
-        sys.exit(err)
     elif sys.argv[1] == 'cat':
-        err = cat(sys.argv[2])
-        sys.exit(err)
+        err = cat(sys.argv[2:])
+    sys.exit(err)
 
 
 if __name__ == '__main__':