[buildcore] Fix conan to work in Docker devenv

deps/buildcore/scripts/pybb.py

@@ -74,6 +74,20 @@ def cmake_build(base_path: str, target: str) -> int:
     return 0
 
 
+def conan() -> int:
+    project_name = sys.argv[2]
+    conan_dir = '.conanbuild'
+    err = mkdir(conan_dir)
+    if err != 0:
+        return err
+    args = ['conan', 'install', '../', '--build=missing', '-pr', project_name]
+    os.chdir(conan_dir)
+    err = subprocess.run(args).returncode
+    if err != 0:
+        return err
+    return 0
+
+
 def main():
     err = 0
     if sys.argv[1] == 'mkdir':
@@ -81,6 +95,8 @@ def main():
     elif sys.argv[1] == 'rm':
         for i in range(2, len(sys.argv)):
             rm(sys.argv[i])
+    elif sys.argv[1] == 'conan-install':
+        err = conan()
     elif sys.argv[1] == 'ctest-all':
         err = ctest_all()
     elif sys.argv[1] == 'cmake-build':