Using git to compute commited + unstaged LOC changes over 24 hours

Question

The following bash script can compute the LOC change in a git repo in the previous 24 hours:

loc_changed() { since=${1:-24 hours} author=${2:[email protected]} git log --numstat --pretty="%H" --author="$author" --since="$since" | awk 'NF==3 {plus+=$1; minus+=$2} END {printf("(+%d, -%d) LOC\n", plus, minus)}' }

Problem: This command excludes unstaged LOC changes. I think it would be useful to add unstaged changes to this LOC count. How does one do this?

Basically, what I am trying to achieve is this: given a repo, how much changed in the past 24 hours (irrespective of whether those changes have been staged or even committed yet)?

It also excludes staged changes, as git log looks only at commits. Neither the index contents, nor the work-tree contents, are commits. You can use some of the git diff family of commands that compare from or to the index and/or from/to the work-tree (you'll need one command for HEAD-to-index, then one for index-to-work-tree, for instance, to get staged and unstaged), or else make two commits out of index and work-tree. Or, you can make commits out of these. However, if the index contains an in-progress merge, it's not possible to commit it and overly difficult to diff against it. — torek
– torek, Commented Feb 7, 2019 at 4:48
It's up to you to decide what to do and how to do it, here; Git merely provides some tools. To diff HEAD vs work-tree, bypassing the index entirely, consider using the confusingly-named git diff-index plumbing command. — torek
– torek, Commented Feb 7, 2019 at 4:52

Yulio Aleman Jimenez · Accepted Answer · 2019-02-07 04:53:51Z

Try with these changes. I'm sure this code can be optimized :)

loc_changed() { since=${1:-24 hours} author=${2:[email protected]} stagedPlus=$(git log --numstat --pretty="%H" --author="$author" --since="$since" | awk 'NF==3 {plus+=$1} END {print plus}') unstagedPlus=$(git diff $(git log -1 --pretty="%H" | tail -1) --numstat | awk 'NF==3 {plus+=$1} END {print plus}') stagedMinus=$(git log --numstat --pretty="%H" --author="$author" --since="$since" | awk 'NF==3 {minus+=$2} END {print minus}') unstagedMinus=$(git diff $(git log -1 --pretty="%H" | tail -1) --numstat | awk 'NF==3 {minus+=$2} END {print minus}') if [[ -z $unstagedPlus ]]; then unstagedPlus=0 fi if [[ -z $unstagedMinus ]]; then unstagedMinus=0 fi print "+$(($stagedPlus+$unstagedPlus)), -$(($stagedMinus+$unstagedMinus))" }

The lines you need are related to diff, where I get all changes (counted with numstat) from the last commit to the current unstaged code.

This is brilliant. Is there an easy way to change the units displayed by this command from LOC to +words added, -words removed?
I'm not sure, but maybe playing with the diff tool you can count the words added/removed, but in terms of code, a single change of a + by a - could be counted as a word, so the solution would be so tricky.

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