New release process.

Makefile

@@ -1,6 +1,7 @@
 NAME=redash
 VERSION=`python ./manage.py version`
 FULL_VERSION=$(VERSION)+b$(CIRCLE_BUILD_NUM)
+BASE_VERSION=$(shell python ./manage.py version | cut -d + -f 1)
 # VERSION gets evaluated every time it's referenced, therefore we need to use VERSION here instead of FULL_VERSION.
 FILENAME=$(CIRCLE_ARTIFACTS)/$(NAME).$(VERSION).tar.gz
 
@@ -15,7 +16,7 @@ pack:
 	tar -zcv -f $(FILENAME) --exclude=".git*" --exclude="*.pyc" --exclude="*.pyo" --exclude="venv" --exclude="rd_ui/node_modules" --exclude="rd_ui/dist/bower_components" --exclude="rd_ui/app" *
 
 upload:
-	python bin/upload_version.py $(VERSION) $(FILENAME)
+	python bin/release_manager.py $(CIRCLE_SHA1) $(BASE_VERSION) $(FILENAME)
 
 test:
 	nosetests --with-coverage --cover-package=redash tests/*.py

bin/release_manager.py

@@ -0,0 +1,130 @@
+import os
+import sys
+import json
+import re
+import subprocess
+import requests
+
+github_token = os.environ['GITHUB_TOKEN']
+auth = (github_token, 'x-oauth-basic')
+repo = 'EverythingMe/redash'
+
+def _github_request(method, path, params=None, headers={}):
+    if not path.startswith('https://api.github.com'):
+        url = "https://api.github.com/{}".format(path)
+    else:
+        url = path
+
+    if params is not None:
+        params = json.dumps(params)
+
+    response = requests.request(method, url, data=params, auth=auth)
+    return response
+
+def exception_from_error(message, response):
+    return Exception("({}) {}: {}".format(response.status_code, message, response.json().get('message', '?')))
+
+def rc_tag_name(version):
+    return "v{}-rc".format(version)
+
+def get_rc_release(version):
+    tag = rc_tag_name(version)
+    response = _github_request('get', 'repos/{}/releases/tags/{}'.format(repo, tag))
+
+    if response.status_code == 404:
+        return None
+    elif response.status_code == 200:
+        return response.json()
+
+    raise exception_from_error("Unknown error while looking RC release: ", response)
+
+def create_release(version, commit_sha):
+    tag = rc_tag_name(version)
+
+    params = {
+        'tag_name': tag,
+        'name': "{} - RC".format(version),
+        'target_commitish': commit_sha,
+        'prerelease': True
+    }
+
+    response = _github_request('post', 'repos/{}/releases'.format(repo), params)
+
+    if response.status_code != 201:
+        raise exception_from_error("Failed creating new release", response)
+
+    return response.json()
+
+def upload_asset(release, filepath):
+    upload_url = release['upload_url'].replace('{?name}', '')
+    filename = filepath.split('/')[-1]
+
+    with open(filepath) as file_content:
+        headers = {'Content-Type': 'application/gzip'}
+        response = requests.post(upload_url, file_content, params={'name': filename}, headers=headers, auth=auth, verify=False)
+
+    if response.status_code != 201: # not 200/201/...
+        raise exception_from_error('Failed uploading asset', response)
+
+    return response
+
+def remove_previous_builds(release):
+    for asset in release['assets']:
+        response = _github_request('delete', asset['url'])
+        if response.status_code != 204:
+            raise exception_from_error("Failed deleting asset", response)
+
+def get_changelog(commit_sha):
+    latest_release = _github_request('get', 'repos/{}/releases/latest'.format(repo))
+    if latest_release.status_code != 200:
+        raise exception_from_error('Failed getting latest release', latest_release)
+
+    latest_release = latest_release.json()
+    previous_sha = latest_release['target_commitish']
+
+    args = ['git', '--no-pager', 'log', '--merges', '--grep', 'Merge pull request', '--pretty=format:"%h|%s|%b|%p"', '{}...{}'.format(previous_sha, commit_sha)]
+    log = subprocess.check_output(args)
+    changes = ["Changes since {}:".format(latest_release['name'])]
+
+    for line in log.split('\n'):
+        try:
+            sha, subject, body, parents = line[1:-1].split('|')
+        except ValueError:
+            continue
+
+        try:
+            pull_request = re.match("Merge pull request #(\d+)", subject).groups()[0]
+            pull_request = " #{}".format(pull_request)
+        except Exception, ex:
+            pull_request = ""
+
+        author = subprocess.check_output(['git', 'log', '-1', '--pretty=format:"%an"', parents.split(' ')[-1]])[1:-1]
+
+        changes.append("{}{}: {} ({})".format(sha, pull_request, body.strip(), author))
+
+    return "\n".join(changes)
+
+def update_release(version, build_filepath, commit_sha):
+    try:
+        release = get_rc_release(version) or create_release(version, commit_sha)
+        print "Using release id: {}".format(release['id'])
+
+        remove_previous_builds(release)
+        response = upload_asset(release, build_filepath)
+
+        changelog = get_changelog(commit_sha)
+
+        response = _github_request('patch', release['url'], {'body': changelog})
+        if response.status_code != 200:
+            raise exception_from_error("Failed updating release description", response)
+
+    except Exception, ex:
+        print ex
+
+if __name__ == '__main__':
+    commit_sha = sys.argv[1]
+    version = sys.argv[2]
+    filepath = sys.argv[3]
+
+    # TODO: make sure running from git directory & remote = repo
+    update_release(version, filepath, commit_sha)