Added my script for updating one of our po files with a po file from the community. This should save some time next time we get a scrambled po file.

CURA-9141

scripts/update_po_with_changes.py

@@ -0,0 +1,121 @@
+import argparse
+
+from typing import List
+
+"""
+    Takes in one of the po files in resources/i18n/[LANG_CODE]/cura.po and updates it with translations from a 
+    new po file without changing the translation ordering. 
+    This script should be used when we get a po file that has updated translations but is no longer correctly ordered 
+    so the merge becomes messy.
+    
+    If you are importing files from lionbridge/smartling use lionbridge_import.py.
+    
+    Note: This does NOT include new strings, it only UPDATES existing strings   
+"""
+
+
+class Msg:
+    def __init__(self, msgctxt: str = "", msgid: str = "", msgstr: str = ""):
+        self.msgctxt = msgctxt
+        self.msgid = msgid
+        self.msgstr = msgstr
+
+    def __str__(self):
+        return self.msgctxt + self.msgid + self.msgstr
+
+
+def parse_po_file(filename: str) -> List[Msg]:
+    messages = []
+    with open(filename) as f:
+        iterator = iter(f.readlines())
+        while True:
+            try:
+                line = next(iterator)
+                if line[0:7] == "msgctxt":
+                    #  Start of a translation item block
+                    msg = Msg()
+                    msg.msgctxt = line
+
+                    while True:
+                        line = next(iterator)
+                        if line[0:5] == "msgid":
+                            msg.msgid = line
+                            break
+
+                    while True:
+                        #  msgstr can be split over multiple lines
+                        line = next(iterator)
+                        if line == "\n":
+                            break
+                        if line[0:6] == "msgstr":
+                            msg.msgstr = line
+                        else:
+                            msg.msgstr += line
+
+                    messages.append(msg)
+            except StopIteration:
+                return messages
+
+
+def get_different_messages(messages_original: List[Msg], messages_new: List[Msg]) -> List[Msg]:
+    #  Return messages that have changed in messages_new
+    different_messages = []
+
+    for m_new in messages_new:
+        for m_original in messages_original:
+            if m_new.msgstr != m_original.msgstr \
+                    and m_new.msgid == m_original.msgid and m_new.msgctxt == m_original.msgctxt \
+                    and m_new.msgid != 'msgid ""\n':
+                different_messages.append(m_new)
+
+    return different_messages
+
+
+def update_po_file(input_filename: str, output_filename: str, messages: List[Msg]):
+    # Takes a list of changed messages and writes a copy of input file with updated message strings
+    with open(input_filename, "r") as input_file, open(output_filename, "w") as output_file:
+        iterator = iter(input_file.readlines())
+        while True:
+            try:
+                line = next(iterator)
+                output_file.write(line)
+                if line[0: 7] == "msgctxt":
+                    #  Start of translation block
+                    msgctxt = line
+
+                    msgid = next(iterator)
+                    output_file.write(msgid)
+
+                    #  Check for updated version of msgstr
+                    message = list(filter(lambda m: m.msgctxt == msgctxt and m.msgid == msgid, messages))
+                    if message and message[0]:
+                        #  Write update translation
+                        output_file.write(message[0].msgstr)
+
+                        # Skip lines until next translation. This should skip multiline msgstr
+                        while True:
+                            line = next(iterator)
+                            if line == "\n":
+                                output_file.write(line)
+                                break
+
+            except StopIteration:
+                return
+
+
+if __name__ == "__main__":
+    print("********************************************************************************************************************")
+    print("This creates a new file 'updated.po' that is a copy of original_file with any changed translations from updated_file")
+    print("This does not change the order of translations")
+    print("This does not include new translations, only existing changed translations")
+    print("Do not use this to import lionbridge/smarting translations")
+    print("********************************************************************************************************************")
+    parser = argparse.ArgumentParser(description="Update po file with translations from new po file. This ")
+    parser.add_argument("original_file", type=str, help="Input .po file inside resources/i18n/[LANG]/")
+    parser.add_argument("updated_file", type=str, help="Input .po file with updated translations added")
+    args = parser.parse_args()
+
+    messages_updated = parse_po_file(args.updated_file)
+    messages_original = parse_po_file(args.original_file)
+    different_messages = get_different_messages(messages_original, messages_updated)
+    update_po_file(args.original_file, "updated.po", different_messages)