How can I calculate the number of lines changed between two commits in Git

Question

Is there any easy way to calculate the number of lines changed between two commits in Git  I know I can do a git diff  and count the lines  but this seems tedious  I d also like to know how I can do this  including only my own commits in the line counts

User · Accepted Answer

You want the --stat option of git diff  or if you re looking to parse this in a script  the --numstat option   git diff --stat  lt commit-ish gt   lt commit-ish gt    --stat produces the human-readable output you re used to seeing after merges  --numstat produces a nice table layout that scripts can easily interpret   I somehow missed that you were looking to do this on multiple commits at the same time - that s a task for git log  Ron DeVera touches on this  but you can actually do a lot more than what he mentions  Since git log internally calls the diff machinery in order to print requested information  you can give it any of the diff stat options - not just --shortstat  What you likely want to use is   git log --author  Your name  --stat  lt commit1 gt    lt commit2 gt    but you can use --numstat or --shortstat as well  git log can also select commits in a variety other ways - have a look at the documentation  You might be interested in things like --since  rather than specifying commit ranges  just select commits since last week  and --no-merges  merge commits don t actually introduce changes   as well as the pretty output options  --pretty oneline  short  medium  full       Here s a one-liner to get total changes instead of per-commit changes from git log  change the commit selection options as desired - this is commits by you  from commit1 to commit2    git log --numstat --pretty   H  --author  Your Name  commit1  commit2   awk  NF  3  plus   1  minus   2  END  printf    d  - d n   plus  minus       you have to let git log print some identifying information about the commit  I arbitrarily chose the hash  then used awk to only pick out the lines with three fields  which are the ones with the stat information

User · Answer

I just solved this problem for myself  so I ll share what I came up with   Here s the end result    gt  git summary --since yesterday total  114 file changes  13800 insertions    638 deletions -    The underlying command looks like this   git log --numstat --format           awk   files    1  ins     1  del     2  END print  total   files  files   ins  insertions     del  deletions -       Note the    in the log command to pass on your arguments such as --author  Brian  or --since yesterday   Escaping the awk to put it into a git alias was messy  so instead  I put it into an executable script on my path    bin git-stat-sum   then used the script in the alias in my  gitconfig    alias      summary    git-stat-sum          And it works really well   One last thing to note is that file changes is the number of changes to files  not the number of unique files changed   That s what I was looking for  but it may not be what you expect   Here s another example or two  git summary --author brian git summary master  dev   combine them as you like git summary --author brian master  dev git summary --all   Really  you should be able to replace any git log command with git summary

User · Answer

git diff --stat commit1 commit2   EDIT  You have to specify the commits as well  without parameters it compares the working directory against the index    E g   git diff --stat HEAD  HEAD   to compare the parent of HEAD with HEAD

User · Answer

Another way to get all change log in a specified period of time  git log --author  Tri Nguyen  --oneline --shortstat --before  2017-03-20  --after  2017-03-10    Output   2637cc736 Revert changed code  1 file changed  5 insertions     5 deletions -  ba8d29402 Fix review  2 files changed  4 insertions     11 deletions -    With a long output content  you can export to file for more readable  git log --author  Tri Nguyen  --oneline --shortstat --before  2017-03-20  --after  2017-03-10   gt   mnt MyChangeLog txt

User · Answer

Though all above answers are correct  below one is handy to use if you need count of last many commits   below one is to get count of last 5 commits   git diff    git log -5 --pretty format   h    tail -1  --shortstat  to get count of last 10 commits  git diff    git log -10 --pretty format   h    tail -1  --shortstat  generic - change N with count of last many commits you need  git diff    git log -N --pretty format   h    tail -1  --shortstat  to get count of all commits since start   git diff    git log --pretty format   h    tail -1  --shortstat

User · Answer

For the lazy  use git log --stat

User · Answer

If you want to see the changes including the   of lines that changed between your branch and another branch  git diff the other branch name --stat

User · Answer

Assuming that you want to compare all of your commits between abcd123  the first commit  and wxyz789  the last commit   inclusive   git log wxyz789   abcd123 --oneline --shortstat --author  Mike Surname    This gives succinct output like   abcd123 Made things better  3 files changed  14 insertions     159 deletions -  wxyz789 Made things more betterer  26 files changed  53 insertions     58 deletions -

User · Answer

If you want to check the number of insertions  deletions  amp  commits  between two branches or commits  using commit id s  git log  lt commit-id gt    lt commit-id gt  --numstat --pretty  quot  H quot  --author  quot  lt author-name gt  quot    awk  NF  3  added   1  deleted   2  NF  1  commit    END  printf  quot total lines added    d ntotal lines deleted  - d ntotal commits   d n quot   added  deleted  commit     using branches  git log  lt parent-branch gt    lt child-branch gt  --numstat --pretty  quot  H quot  --author  quot  lt author-name gt  quot    awk  NF  3  added   1  deleted   2  NF  1  commit    END  printf  quot total lines added    d ntotal lines deleted  - d ntotal commits   d n quot   added  deleted  commit

User · Answer

git diff --shortstat   gives you just the number of lines changed and added   This only works with unstaged changes   To compare against a branch   git diff --shortstat some-branch

User · Answer

git log --numstat  just gives you only the numbers

[git] How can I calculate the number of lines changed between two commits in Git?

Examples related to git