Mastering git log

Querying Your Repository's History

git log is extremely powerful once you know its options:

git log --oneline                  # compact view
git log --oneline --graph --all    # visual branch graph
git log --stat                     # show changed files + line counts
git log -p                         # show full diffs

# Filter by time
git log --since="2 weeks ago"
git log --after="2024-01-01" --before="2024-06-01"

# Filter by author
git log --author="Alice"

# Filter by content (search commit messages)
git log --grep="fix"
git log --grep="bug" -i             # case-insensitive

# Filter by what changed in files (pickaxe)
git log -S "functionName"          # commits that added/removed that string
git log -G "regex"                 # commits where diff matches regex

# Range: commits in feature not in main
git log main..feature --oneline

# Formatting
git log --format="%h %an %s"       # hash, author name, subject

Your Task

The repo has several commits. Write a command that prints only commits whose message contains the word "feature" (case-insensitive). Store the count of such commits in a variable and print it.