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It's almost christmas and our team is tasked with sharing some highlights this year. We thought sharing how much code we've written is a good idea. Sure it's not a good metric for measuring productivity, but good enough for bragging rights. But.. how? `git diff --shortstat` works but I don't exactly know which commit happened 1 year ago. Hmm..
Not sure if this is the best method. But here's what I did.
git log --since='1 year ago' --stat | awk -F, '/files changed/{print $2; if($3 != "") print $3}' | awk -F' ' '{if($2 == "insertions(+)") added += $1; else deleted += $1} END {print "Added: " added ", deleted " deleted}'
First, `git log --since='1 year ago' --stat` gives you the added and deleted lines for each commit. Then an awk script is used to extract the added and deleted chunk into separate lines. Take the output I got from my GNUnet++ project as an example:
❯ git log --since='1 year ago' --stat
commit d0553a29fcc1b981ae4889d914f98b78147ab20a (HEAD -> master)
Author: marty1885 <marty188586@gmail.com>
Date: Sun Dec 18 12:53:54 2022 +0800
use smart pointer to handle connection lifetime
examples/cadet/main.cpp | 6 +++---
gnunetpp/gnunetpp-cadet.cpp | 29 ++++++++++++++++++-----------
gnunetpp/gnunetpp-cadet.hpp | 17 +++++++++--------
3 files changed, 30 insertions(+), 22 deletions(-)
commit e6c029f58b5f7910235e4daf4fda8aded2992dc1
Author: marty1885 <marty188586@gmail.com>
Date: Sun Dec 18 12:16:41 2022 +0800
make all services non-copyable
gnunetpp/gnunetpp-cadet.hpp | 4 +---
gnunetpp/inner/Infra.hpp | 3 ++-
2 files changed, 3 insertions(+), 4 deletions(-)
commit 4275294bb3e1cbb1cbe3088a9b94f5908dc0092c
Author: marty1885 <marty188586@gmail.com>
Date: Sun Dec 18 11:46:27 2022 +0800
...
❯ git log --since='1 year ago' --stat | awk -F, '/files changed/{print $2; if($3 != "") print $3}'
30 insertions(+)
22 deletions(-)
3 insertions(+)
4 deletions(-)
23 insertions(+)
7 deletions(-)
...
The final awk script is used to sum up the added and deleted lines.
❯ git log --since='1 year ago' --stat | awk -F, '/files changed/{print $2; if($3 != "") print $3}' | awk -F' ' '{if($2 == "insertions(+)") added += $1; else deleted += $1} END {print "Added: " added ", deleted: " deleted}'
Added: 5754, deleted: 1306
I probably should have used `git log --since='1 year ago' | tail` and `git diff` on the last commit. But somehow I never go down that route. This works good enough for me.
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