add ability to override the s3 archive file names

if given (via --name) the override name is passed to the formula as
the second argument

.gitignore

@@ -1,4 +1,6 @@
 *.py[cod]
 *.egg-info/
 build/
+builds/
 dist/
+src/

bob/cli.py

@@ -1,13 +1,14 @@
 # -*- coding: utf-8 -*-
 
-"""Usage: bob build <formula>
-       bob deploy <formula> [--overwrite]
+"""Usage: bob build <formula> [--name=FILE]
+       bob deploy <formula> [--overwrite] [--name=<FILE>]
 
 Build formula and optionally deploy it.
 
 Options:
     -h --help
     --overwrite  allow overwriting of deployed archives.
+    --name=<path>  allow separate name for the archived output
 
 Configuration:
     Environment Variables: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, S3_BUCKET, S3_PREFIX (optional), UPSTREAM_S3_BUCKET (optional), UPSTREAM_S3_PREFIX (optional)
@@ -21,8 +22,8 @@ from .models import Formula
 from .utils import print_stderr
 
 
-def build(formula):
-    f = Formula(path=formula)
+def build(formula, name):
+    f = Formula(path=formula, override_path=name)
 
     try:
         assert f.exists
@@ -36,8 +37,8 @@ def build(formula):
     return f
 
 
-def deploy(formula, overwrite):
-    f = build(formula)
+def deploy(formula, overwrite, name):
+    f = build(formula, name)
 
     print('Archiving.')
     f.archive()
@@ -53,12 +54,13 @@ def main():
     do_build = args['build']
     do_deploy = args['deploy']
     do_overwrite = args['--overwrite']
+    do_name = args['--name']
 
     if do_build:
-        build(formula)
+        build(formula, name=do_name)
 
     if do_deploy:
-        deploy(formula, overwrite=do_overwrite)
+        deploy(formula, overwrite=do_overwrite, name=do_name)
 
 
 def dispatch():

bob/models.py

@@ -36,9 +36,10 @@ sys.stderr = os.fdopen(sys.stderr.fileno(), 'w', 0)
 
 class Formula(object):
 
-    def __init__(self, path):
+    def __init__(self, path, override_path=None):
         self.path = path
         self.archived_path = None
+        self.override_path = override_path
 
         if not S3_BUCKET:
             print_stderr('The environment variable S3_BUCKET must be set to the bucket name.')
@@ -135,7 +136,11 @@ class Formula(object):
         print('Building formula {} in {}:\n'.format(self.path, cwd_path))
 
         # Execute the formula script.
-        p = process(["/usr/bin/env", "bash", "--", self.full_path, self.build_path], cwd=cwd_path)
+        args = ["/usr/bin/env", "bash", "--", self.full_path, self.build_path]
+        if self.override_path:
+            args.append(self.override_path)
+
+        p = process(args, cwd=cwd_path)
 
         pipe(p.stdout, sys.stdout, indent=True)
         p.wait()
@@ -162,7 +167,13 @@ class Formula(object):
             print_stderr('Deploy requires valid AWS credentials.')
             sys.exit(1)
 
-        key_name = '{}{}.tar.gz'.format(S3_PREFIX, self.path)
+        if override_name != None:
+            name = self.override_path
+        else:
+            name = self.path
+
+        key_name = '{}{}.tar.gz'.format(S3_PREFIX, name)
+
         key = self.bucket.get_key(key_name)
 
         if key: