#!/usr/bin/python
import os
import sys
import getopt
import subprocess
from xml.etree import ElementTree
def read_manifest(file):
manifest = ElementTree.parse(file)
defaults = manifest.findall('default')[0]
for project in manifest.findall('project'):
if not 'remote' in project.attrib:
project.attrib['remote'] = defaults.attrib['remote']
if not 'revision' in project.attrib:
project.attrib['revision'] = defaults.attrib['revision']
return manifest
def manifest_defaults(manifest):
defaults = dict()
defaults['remote'] = ''
defaults['revision'] = ''
for e in manifest.findall('default'):
if 'remote' in e:
defaults['remote'] = e.attrib['remote']
if 'revision' in e:
defaults['revision'] = e.attrib['revision']
oldpwd = os.getcwd()
os.chdir('.repo/manifests')
pipe = subprocess.Popen(['git', 'remote', '-v'], stdout=subprocess.PIPE)
line = pipe.stdout.readline()
fields = line.split()
defaults['fetch'] = os.path.dirname(fields[1])
os.chdir(oldpwd)
return defaults
def manifest_remotes(manifest, defaults):
remotes = dict()
for e in manifest.findall('remote'):
if not 'name' in e.attrib:
print "ERROR: remote with no name attrib"
continue
name = e.attrib['name']
if not 'fetch' in e.attrib:
print "ERROR: remote with no fetch attrib"
continue
e.attrib['fetch'] = e.attrib['fetch'].rstrip('/')
if e.attrib['fetch'] == '.':
e.attrib['fetch'] = defaults['fetch']
if e.attrib['fetch'] == '..':
e.attrib['fetch'] = os.path.dirname(defaults['fetch'])
remotes[name] = e
return remotes
def manifest_projects(manifest, remotes, defaults):
projects = dict()
for e in manifest.findall('project'):
if not 'name' in e.attrib:
print "ERROR: project with no name attrib"
continue
if not 'path' in e.attrib:
e.attrib['path'] = e.attrib['name']
path = e.attrib['path']
if path in projects:
print "ERROR: duplicate project path %s" % path
continue
if not 'remote' in e.attrib:
e.attrib['remote'] = defaults['remote']
remote_name = e.attrib['remote']
r = remotes[remote_name]
e.attrib['remote_url'] = r.attrib['fetch'] + '/' + e.attrib['name']
projects[path] = e
return projects
def is_same_project(p1, p2):
if p1.attrib['path'] != p2.attrib['path']:
return False
if p1.attrib['remote_url'] != p2.attrib['remote_url']:
return False
return True
def run_git_in_dir(path, args):
pipe = os.popen("chdir %s && git %s" % (path, args))
lines = pipe.readlines()
pipe.close()
return lines
class TextEmitter:
def emit_header(self, f1, f2):
print "# Changelog"
print "# Created ..."
print "# %s vs %s" % (f1, f2)
def emit_footer(self):
# empty
pass
def emit_project_change_header(self):
print "=" * 72
print "Project changes ..."
def emit_project_change_text(self, text):
print "%s" % text
def emit_project_change_footer(self):
print ""
def emit_dir_changes_header(self, name, r1, r2):
print "=" * 72
print "Changes in %s [%s .. %s]" % (name, r1, r2)
print "=" * 72
print ""
def emit_dir_changes_text(self, remote_url, text):
for line in text:
print line.rstrip()
def emit_dir_changes_footer(self):
print ""
class HtmlEmitter:
def emit_header(self, f1, f2):
print ""
print " "
print " Changelog"
print " "
print " "
def emit_footer(self):
print " "
print ""
def emit_project_change_header(self):
print " Project changes
"
print "
"
def emit_project_change_text(self, text):
print " %s
" % text
def emit_project_change_footer(self):
# empty
pass
def emit_dir_changes_header(self, name, r1, r2):
print " Changes in %s [%s .. %s]
" % (name, r1, r2)
print "
"
def emit_dir_changes_text(self, remote_url, text):
print " "
for line in text:
txt = line.rstrip()
if line[0:7] == 'commit ' and remote_url.find('github.com') != -1:
id = line[7:]
lnk = '%s/commit/%s' % (remote_url, id)
txt = '%s' % (lnk, id)
print " %s" % txt
print " "
def emit_dir_changes_footer(self):
# empty
pass
fmt = 'text'
showmerges = False
short = False
opts, args = getopt.getopt(sys.argv[1:], 'f:ms', ['format=', 'show-merges', 'short'])
for k, v in opts:
if k in ('-f', '--format'):
fmt = v
if k in ('-m', '--show-merges'):
showmerges = True
if k in ('-s', '--short'):
short = True
if len(args) != 2:
print "Usage: %s [-f text|html] [-m] manifest1 manifest2"
sys.exit(1)
f1 = args[0]
f2 = args[1]
manifest1 = read_manifest(f1)
manifest2 = read_manifest(f2)
defaults1 = manifest_defaults(manifest1)
defaults2 = manifest_defaults(manifest2)
remotes1 = manifest_remotes(manifest1, defaults1)
remotes2 = manifest_remotes(manifest2, defaults2)
projects1 = manifest_projects(manifest1, remotes1, defaults1)
projects2 = manifest_projects(manifest2, remotes2, defaults2)
diffable_projects = []
changed_projects = []
new_projects = []
del_projects = []
for path in projects1.iterkeys():
if path in projects2:
p1 = projects1[path]
p2 = projects2[path]
if is_same_project(p1, p2):
diffable_projects.append(path)
else:
changed_projects.append(path)
else:
del_projects.append(path)
for path in projects2.iterkeys():
if not path in projects1:
new_projects.append(path)
if fmt == 'text':
emitter = TextEmitter()
else:
emitter = HtmlEmitter()
emitter.emit_header(f1, f2)
if len(new_projects) > 0 or len(del_projects) > 0 or len(changed_projects) > 0:
emitter.emit_project_change_header()
for path in new_projects:
remote_url = projects2[path].attrib['remote_url']
emitter.emit_project_change_text("new project %s: %s" % (path, remote_url))
for path in del_projects:
remote_url = projects1[path].attrib['remote_url']
emitter.emit_project_change_text("deleted project %s: %s" % (path, remote_url))
for path in changed_projects:
old_remote_url = projects1[path].attrib['remote_url']
new_remote_url = projects2[path].attrib['remote_url']
emitter.emit_project_change_text("changed project %s: %s => %s" % (path, old_remote_url, new_remote_url))
emitter.emit_project_change_footer()
for path in sorted(diffable_projects):
p1 = projects1[path]
r1 = p1.attrib['revision']
p2 = projects2[path]
r2 = p2.attrib['revision']
if r1 != r2:
lines = run_git_in_dir(path, "show --pretty=format:%%h %s" % (r1))
r1a = lines[0].rstrip('\n')
lines = run_git_in_dir(path, "show --pretty=format:%%h %s" % (r2))
r2a = lines[0].rstrip('\n')
gitargs = "log "
if not showmerges:
gitargs += "--no-merges "
if short:
gitargs += "--pretty=oneline "
else:
gitargs += "--pretty=short "
gitargs += "--abbrev-commit "
gitargs += "%s..%s" % (p1.attrib['revision'], p2.attrib['revision'])
lines = run_git_in_dir(path, gitargs)
if len(lines) > 0:
emitter.emit_dir_changes_header(path, r1a, r2a)
emitter.emit_dir_changes_text(p1.attrib['remote_url'], lines)
emitter.emit_dir_changes_footer()
emitter.emit_footer()