Git Update a Tag

若要 update 一個已經建立的 tag, 需要透過 git tag -f 指令更新

Leighweight Tag

Update the object refered by the tag
```
git tag -f TAG_NAME OBJECT_SHA1
```

Annotated Tag

Update tag message
```
git tag -f -a TAG_NAME TAG_NAME^{}
```
Update the object refered by the tag
```
git tag -f -a TAG_NAME NEW_OBJECT_ID
```

Tag Type Identification

To identify whether a tag is a lightweight tag or an annotated tag, use git show-ref -d --tags If it is a lightweight tag, a refs/tags/TAG_NAME with tag object ID will be present. If it is a annotated taf, an additional line containg ^{} dereference operator will be present.
```
git show-ref -d --tags TAG_NAME
```

Reference

Git Written on October 19th, 2022 by Borting

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