CODEWITHSUNDEEP
gitversion-control
srajappa
srajappa

Reputation: 481

Finding new files in the current git tag compared to previous tag

For example I have the following files in tag: v1.0.1

a
b
c

and for tag: v1.0.2 the files are as follows:

a
b
c
d
e

Now how do we get the list of new files present in the repo for the latest tag ?

The answer for the above example should be:

d
e

Upvotes: 0

Views: 17

Answers (1)

torek
torek

Reputation: 488163

A tag identifies a commit. A commit contains a snapshot—a set of files.

git diff compares sets-of-files, including two different snapshots. Simply point git diff at two specific commits—two snapshots—and it will give you instructions for converting one to the other:

git diff v1.0.1 v1.0.2

The only problem is that git diff shows you the complete instructions by default, while you want to know what files are affected. Fortunately git diff has knobs you can turn to make it reduce or change its output, such as --name-status:

$ git diff --name-status v1.0.1 v1.0.2
M       Makefile
M       debian/changelog
M       quote.c
M       server-info.c

The "status" letter at the front tells you what Git thinks happened to the file: M means "modified", "D" means "deleted", and so on. The most interesting for your particular case is A, which means "added": the file is in the second commit, but not in the first.

Hence, you want to select the files from this list that have status A (in my example none do but in your example some will). Fortunately git diff has a knob for this as well:

git diff --diff-filter=A <options> <arguments>

You could keep the --name-status so that it doesn't show the contents of the files, but this will still show the letter A; so you will want --name-only to print just the names:

git diff --name-only --diff-filter=A v1.0.1 v1.0.2

and you're done.

Upvotes: 2

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