From 056cf9890b5691303bd32eb3252dcf55aaea0d89 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 14 Feb 2016 13:43:11 +0200
Subject: Find version.py automatically

---
 bumper      | 13 ++++++++++++-
 bumper.yarn |  9 ++++-----
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/bumper b/bumper
index 65aae99..b01be43 100755
--- a/bumper
+++ b/bumper
@@ -27,9 +27,10 @@ class Bumper(cliapp.Application):
 
     def process_args(self, args):
         version = args[0]
-        filename = args[1]
         print 'Preparing release version', version
 
+        filename = self.find_version_py()
+
         print 'Setting version in', filename
         self.write_version_py(filename, version, '')
 
@@ -63,6 +64,16 @@ class Bumper(cliapp.Application):
             version,
             'Bump version number post-release to {}'.format(gitversion))
 
+    def find_version_py(self):
+        output = cliapp.runcmd(['git', 'ls-files'])
+        filenames = [x.strip() for x in output.splitlines()]
+        version_pys = [x for x in filenames if x.endswith('/version.py')]
+        if len(version_pys) == 0:
+            raise cliapp.AppException('No version.py in project')
+        elif len(version_pys) > 1:
+            raise cliapp.AppException('Too many version.py in project')
+        return version_pys[0]
+
     def update_debian_changelog(self, version, msg):
         debian_version = '{}-1'.format(version)
         cliapp.runcmd(['dch', '-v', debian_version, msg])
diff --git a/bumper.yarn b/bumper.yarn
index d204a96..230dda7 100644
--- a/bumper.yarn
+++ b/bumper.yarn
@@ -60,7 +60,7 @@ also stored.
 
 We run Bumper, and it does several things.
 
-    WHEN user runs "bumper 3.2 foolib/version.py" in the foo directory
+    WHEN user runs "bumper 3.2" in the foo directory
 
 Bumper creates a git tag for the release, and updates files in the tag
 to have the right version number.
@@ -85,7 +85,7 @@ the tag) won't report a version number that looks like a release.
 
 We can also make a second release.
 
-    WHEN user runs "bumper 3.4 foolib/version.py" in the foo directory
+    WHEN user runs "bumper 3.4" in the foo directory
     THEN git repository foo has tag foo-3.4, signed with AA8CD13C
     AND in foo, tag foo-3.4, foolib/version.py contains
     ... "__version__ = "3.4"\n__version_info__ = (3, 4)\n"
@@ -161,13 +161,12 @@ for Bumper.
     cliapp.runcmd(['git', 'add', 'debian'], cwd=dirname)
     cliapp.runcmd(['git', 'commit', '-m', 'Add debian packaging'], cwd=dirname)
 
-    IMPLEMENTS WHEN user runs "bumper (\S+) (\S+)" in the (\S+) directory
+    IMPLEMENTS WHEN user runs "bumper (\S+)" in the (\S+) directory
     import cliapp, yarnstep
     version = yarnstep.get_next_match()
-    filename = yarnstep.get_next_match()
     dirname = yarnstep.get_next_match_as_datadir_path()
     bin = yarnstep.srcdir('bumper')
-    cliapp.runcmd([bin, version, filename], cwd=dirname)
+    cliapp.runcmd([bin, version], cwd=dirname)
 
     IMPLEMENTS THEN file (\S+) in (\S+) contains "(.*)"
     import os, yarnstep
-- 
cgit v1.2.1