I made a bash function to turn these commands into a one page diagnostics report so that you can use this in your `.bashrc`:
Diagnostics function, colorized (I tried to add guards so it is portable with terminals that do not support color):
git_diag() {
local since="${1:-1 year ago}"
local root repo branch
# --- patterns ---
local pattern="${GIT_DIAG_PATTERN:-fix|bug|broken|hotfix|incident|issue|patch}"
local firefight_pattern="revert|hotfix|emergency|rollback"
# --- colors ---
local GREP_COLOR_MODE='never'
if [[ -z "${NO_COLOR:-}" ]] && [[ -t 1 ]] && [[ "${TERM:-}" != "dumb" ]] && [[ "$(tput colors 2>/dev/null || echo 0)" -ge 8 ]]; then
local BLACK=$(tput setaf 0)
local RED=$(tput setaf 1)
local GREEN=$(tput setaf 2)
local YELLOW=$(tput setaf 3)
local BLUE=$(tput setaf 4)
local MAGENTA=$(tput setaf 5)
local CYAN=$(tput setaf 6)
local WHITE=$(tput setaf 7)
local BOLD=$(tput bold)
local DIM=$(tput dim 2>/dev/null || true)
local RESET=$(tput sgr0)
GREP_COLOR_MODE='always'
else
local BLACK='' RED='' GREEN='' YELLOW='' BLUE='' MAGENTA='' CYAN='' WHITE=''
local BOLD='' DIM='' RESET=''
fi
local TITLE="$CYAN"
local COLOR_COUNT="$CYAN"
local COLOR_FILE="$YELLOW"
if ! root="$(git rev-parse --show-toplevel 2>/dev/null)"; then
printf 'git_diag: not inside a Git repository\n' >&2
return 1
fi
repo="${root##*/}"
branch="$(git branch --show-current 2>/dev/null)"
branch="${branch:-DETACHED}"
_git_diag_fmt_count() {
local count_color="$1"
local text_color="$2"
awk -v count_color="$count_color" -v text_color="$text_color" -v reset="$RESET" '{
c=$1
$1=""
sub(/^ +/, "")
printf " %s%10d%s %s%s%s\n", count_color, c, reset, text_color, $0, reset
}'
}
printf '%s%sGit repo diagnostics%s\n' "$BOLD" "$TITLE" "$RESET"
printf '%s%-11s%s %s\n' "$BOLD" "Repo:" "$RESET" "$repo"
printf '%s%-11s%s %s\n' "$BOLD" "Branch:" "$RESET" "$branch"
printf '%s%-11s%s %s\n' "$BOLD" "Timeframe:" "$RESET" "$since → now"
printf '\n\n'
printf '%s%s1) Most changed files%s\n' "$BOLD" "$TITLE" "$RESET"
git log --since="$since" --format='' --name-only \
| awk 'NF' \
| sort \
| uniq -c \
| sort -nr \
| head -n 10 \
| _git_diag_fmt_count "$COLOR_COUNT" "$COLOR_FILE"
printf '\n%s%s2) Top contributors%s\n' "$BOLD" "$TITLE" "$RESET"
git shortlog -sn --no-merges --since="$since" \
| head -n 10 \
| awk -v count_color="$COLOR_COUNT" -v reset="$RESET" '{
printf " %s%10d%s %s\n", count_color, $1, reset, substr($0, index($0,$2))
}'
printf '\n%s%s3) Bug/fix hotspots%s %s(pattern: %s)%s\n' "$BOLD" "$TITLE" "$RESET" "$DIM" "$pattern" "$RESET"
git log --since="$since" --format='' --name-only -i -E --grep="$pattern" \
| awk 'NF' \
| sort \
| uniq -c \
| sort -nr \
| head -n 10 \
| _git_diag_fmt_count "$COLOR_COUNT" "$COLOR_FILE"
printf '\n%s%s4) Commit count by month%s\n' "$BOLD" "$TITLE" "$RESET"
git log --since="$since" --format='%ad' --date=format:'%Y-%m' \
| sort \
| uniq -c \
| sort -k2r \
| awk -v count_color="$COLOR_COUNT" -v mag="$MAGENTA" -v reset="$RESET" '
{
data[NR,1] = $2
data[NR,2] = $1
if (length($1) > max) max = length($1)
}
END {
for (i = 1; i
Uncolorized diagnostics function (same, but without the colors):
git_diag() {
local since="${1:-1 year ago}"
local pattern="${GIT_DIAG_PATTERN:-fix|bug|broken|hotfix|incident|issue|patch}"
local root repo branch
if ! root="$(git rev-parse --show-toplevel 2>/dev/null)"; then
printf 'git_diag: not inside a Git repository\n' >&2
return 1
fi
repo="${root##*/}"
branch="$(git branch --show-current 2>/dev/null)"
branch="${branch:-DETACHED}"
_git_diag_fmt_count() {
awk '{
c=$1
$1=""
sub(/^ +/, "")
printf " %10d %s\n", c, $0
}'
}
printf '============================================================\n'
printf 'Git repo diagnostics\n'
printf '%-11s%as\n' 'Repo:' "$repo"
printf '%-11s%s\n' 'Branch:' "$branch"
printf '%-11s%s\n' 'Timeframe:' "$since"
printf '============================================================\n\n'
printf '1) Most changed files (top 10)\n'
git log --since="$since" --format='' --name-only \
| awk 'NF' \
| sort \
| uniq -c \
| sort -nr \
| head -n 10 \
| _git_diag_fmt_count
printf '\n2) Top 10 contributors (no merges, since %s)\n' "$since"
git shortlog -sn --no-merges --since="$since" \
| head -n 10 \
| _git_diag_fmt_count
printf '\n3) Bug/fix hotspots (top 10, matching: %s)\n' "$pattern"
git log --since="$since" --format='' --name-only -i -E --grep="$pattern" \
| awk 'NF' \
| sort \
| uniq -c \
| sort -nr \
| head -n 10 \
| _git_diag_fmt_count
printf '\n4) Commit count by month (since %s)\n' "$since"
git log --since="$since" --format='%ad' --date=format:'%Y-%m' \
| sort \
| uniq -c \
| sort -k2r \
| awk '
{
data[NR,1] = $2
data[NR,2] = $1
if (length($1) > max) max = length($1)
}
END {
for (i = 1; i