Clean all merged branches and prune origin

.gitconfig

# Allows us to call the script via git bp
[alias]
  bp = !~/clean_merged_branches.py

clean_merged_branches.py

#!/usr/bin/python

import subprocess

# Add any branches you want to exclude here (ex. master, dev, etc)
EXCLUDE = []

# Grabs all branches merged w.r.t. your current branch
GET_MERGED_BRANCHES = ["git", "branch", "--merged"]

# Command to delete a single branch
DELETE_BRANCH = ["git", "branch", "--delete"]

# Command to prune against your remote server
PRUNE_ORIGIN = ["git", "remote", "prune", "origin"]

# Runs the given process and returns output as pipe.  Tuple(out, err)
def runSubProc(proc):
    return subprocess.Popen(proc, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()

# Removes the branch we currently have checked out
def removeCurrentBranch(branches):
    return filter(lambda b: not b.startswith('*') and len(b) != 0, branches)

# Removes extra whitespace from the branch name
def trimBranches(branches):
    return map(lambda b: b.strip(), branches)

# Removes anything from our EXCLUDE list
def removeExcludes(branches):
    return filter(lambda b: b not in EXCLUDE, branches)

# Deletes the given branch locally
def deleteBranch(branch):
    return runSubProc(sum([DELETE_BRANCH, [branch]], []))

# Grabs all our merged branches
out, err = runSubProc(GET_MERGED_BRANCHES)

# Process branches and delete the ones we want deleted
print '\n'.join([deleteBranch(b)[0] for b in (removeExcludes(trimBranches(removeCurrentBranch(out.split('\n')))))])
    
# Prune origin
print runSubProc(PRUNE_ORIGIN)[0]