Unlike the cover mail diffstat, this covers exactly the selected
patches and nothing else.

Signed-off-by: Karl Hasselström <kha@treskal.com>

---

 stgit/commands/mail.py   |   41 +++++++++++++++++++++++++----------------
 stgit/stack.py           |    7 +++++++
 templates/covermail.tmpl |    3 +++
 3 files changed, 35 insertions(+), 16 deletions(-)


diff --git a/stgit/commands/mail.py b/stgit/commands/mail.py
index c223665..c32894e 100644
--- a/stgit/commands/mail.py
+++ b/stgit/commands/mail.py
@@ -58,28 +58,35 @@ SMTP authentication is also possible with '--smtp-user' and
 'smtpuser' and 'smtppassword'. TLS encryption can be enabled by
 '--smtp-tls' option and 'smtptls' setting.
 
-The patch e-mail template accepts the following variables:
+The following variables are accepted by both the preamble and the
+patch e-mail templates:
 
-  %(patch)s        - patch name
-  %(sender)s       - 'sender'  or 'authname <authemail>' as per the config file
-  %(shortdescr)s   - the first line of the patch description
-  %(longdescr)s    - the rest of the patch description, after the first line
-  %(diff)s         - unified diff of the patch
   %(diffstat)s     - diff statistics
-  %(version)s      - ' version' string passed on the command line (or empty)
-  %(prefix)s       - 'prefix ' string passed on the command line
+  %(number)s       - empty if only one patch is sent or ' patchnr/totalnr'
   %(patchnr)s      - patch number
+  %(sender)s       - 'sender'  or 'authname <authemail>' as per the config file
   %(totalnr)s      - total number of patches to be sent
-  %(number)s       - empty if only one patch is sent or ' patchnr/totalnr'
-  %(fromauth)s     - 'From: author\\n\\n' if different from sender
-  %(authname)s     - author's name
-  %(authemail)s    - author's email
+  %(version)s      - ' version' string passed on the command line (or empty)
+
+In addition to the common variables, the preamble e-mail template
+accepts the following:
+
+  %(shortlog)s     - first line of each patch description, listed by author
+
+In addition to the common variables, the patch e-mail template accepts
+the following:
+
   %(authdate)s     - patch creation date
-  %(commname)s     - committer's name
+  %(authemail)s    - author's email
+  %(authname)s     - author's name
   %(commemail)s    - committer's e-mail
-
-For the preamble e-mail template, only the %(diffstat)s, %(sender)s,
-%(version)s, %(patchnr)s, %(totalnr)s and %(number)s variables are supported."""
+  %(commname)s     - committer's name
+  %(diff)s         - unified diff of the patch
+  %(fromauth)s     - 'From: author\\n\\n' if different from sender
+  %(longdescr)s    - the rest of the patch description, after the first line
+  %(patch)s        - patch name
+  %(prefix)s       - 'prefix ' string passed on the command line
+  %(shortdescr)s   - the first line of the patch description"""
 
 options = [make_option('-a', '--all',
                        help = 'e-mail all the applied patches',
@@ -339,6 +346,8 @@ def __build_cover(tmpl, patches, msg_id, options):
                  'patchnr':      patch_nr_str,
                  'totalnr':      total_nr_str,
                  'number':       number_str,
+                 'shortlog':     stack.shortlog(crt_series.get_patch(p)
+                                                for p in patches),
                  'diffstat':     git.diffstat(
                                      rev1 = git_id('%s//bottom' % patches[0]),
                                      rev2 = git_id('%s//top' % patches[-1]))}
diff --git a/stgit/stack.py b/stgit/stack.py
index b19ff4d..906e6b1 100644
--- a/stgit/stack.py
+++ b/stgit/stack.py
@@ -22,6 +22,7 @@ import sys, os, re
 
 from stgit.utils import *
 from stgit.out import *
+from stgit.run import *
 from stgit import git, basedir, templates
 from stgit.config import config
 from shutil import copyfile
@@ -348,6 +349,12 @@ class PatchSet(StgitObject):
         return bool(config.get(self.format_version_key()))
 
 
+def shortlog(patches):
+    log = ''.join(Run('git-log', '--pretty=short',
+                      p.get_top(), '^%s' % p.get_bottom()).raw_output()
+                  for p in patches)
+    return Run('git-shortlog').raw_input(log).raw_output()
+
 class Series(PatchSet):
     """Class including the operations on series
     """
diff --git a/templates/covermail.tmpl b/templates/covermail.tmpl
index adc0b92..5cf11b5 100644
--- a/templates/covermail.tmpl
+++ b/templates/covermail.tmpl
@@ -3,6 +3,9 @@ Subject: [%(prefix)sPATCH%(version)s%(number)s] Series short description
 
 The following series implements...
 
+---
+
+%(shortlog)s
 %(diffstat)s
 -- 
 Signature

-
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