Script to update version/branch of library in all downstream libraries (

#166)

* Script to update version/branch of library in all downstream libraries

Signed-off-by: Addisu Z. Taddese <addisu@openrobotics.org>

* Set explicit_start

Signed-off-by: Addisu Z. Taddese <addisu@openrobotics.org>

---------

Signed-off-by: Addisu Z. Taddese <addisu@openrobotics.org>

update_dependency_version.py

@@ -0,0 +1,43 @@
+import yaml
+import argparse
+from pathlib import Path
+import difflib
+import sys
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="""\
+Script to update version/branch of a library used in all downstream libraries.
+For example, this can be used to change the version of gz-cmake from 'main'
+to 'gz-cmake4' in all downstream libraries that use gz-cmake.
+    """)
+    parser.add_argument('library', help="Versionless name of library. Example 'gz-cmake'")
+    parser.add_argument('from_version', help="Branch name of library. Example 'main'")
+    parser.add_argument('to_version', help="Branch name of library. Exampe 'gz-cmake4'")
+    args = parser.parse_args()
+
+    # Search in current directory
+    path = Path(__file__).parent
+    files = set(f.resolve() for f in path.glob("*.yaml"))
+    changes = {}
+    for file in files:
+        found_match = False
+        old = open(file, "r").read()
+        conf = yaml.safe_load(old)
+        matching_repo = conf["repositories"].get(args.library)
+        if matching_repo and matching_repo["version"] == args.from_version:
+            matching_repo["version"] = args.to_version
+            new = yaml.dump(conf, sort_keys=False, explicit_start=True)
+            changes[file.name] = (old, new)
+
+    print("The following change will be applied")
+    for file, (old, new) in changes.items():
+        diff = difflib.unified_diff(old.splitlines(keepends=True),
+                                    new.splitlines(keepends=True), fromfile=file)
+        sys.stdout.writelines(diff)
+
+    choice = input("Do you want to proceed [Y/n]")
+    if choice in 'Yy':
+        for file, (_, new) in changes.items():
+            with open(file, "w") as f:
+                f.write(new)