Hi Guido,

> Thanks! Can you update docs/manpages/gbp-pq{,-rpm}.sgml as well?

With pleasure. Updated patch attached.


Best wishes,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      la...@debian.org / chris-lamb.co.uk
       `-
diff --git a/docs/manpages/gbp-pq-rpm.sgml b/docs/manpages/gbp-pq-rpm.sgml
index 63a8501..c564a3c 100644
--- a/docs/manpages/gbp-pq-rpm.sgml
+++ b/docs/manpages/gbp-pq-rpm.sgml
@@ -23,6 +23,7 @@
       
<arg><option>--packaging-dir=</option><replaceable>DIRECTORY</replaceable></arg>
       
<arg><option>--spec-file=</option><replaceable>FILEPATH</replaceable></arg>
       
<arg><option>--upstream-tag=</option><replaceable>TAG-FORMAT</replaceable></arg>
+      <arg><option>--abbrev=</option><replaceable>num</replaceable></arg>
       <arg><option>--force</option></arg>
       <arg><option>--[no-]patch-numbers</option></arg>
       <group choice="plain">
@@ -157,6 +158,18 @@
           </para>
         </listitem>
       </varlistentry>
+      <varlistentry>
+        <term><option>--abbrev=</option><replaceable>NUM</replaceable>
+        </term>
+        <listitem>
+          <para>
+         When exporting a patch queue abbreviate commit, nstead of showing the
+         full 40-byte hexadecimal object name in header lines, show only a
+         partial prefix of length <replaceable>NUM</replaceable>. This is
+         useful when existing patches were not generated by &gbp-pq;.
+          </para>
+        </listitem>
+      </varlistentry>
       <varlistentry>
         <term><option>--force</option></term>
         <listitem>
diff --git a/docs/manpages/gbp-pq.sgml b/docs/manpages/gbp-pq.sgml
index 9b06ca3..529887a 100644
--- a/docs/manpages/gbp-pq.sgml
+++ b/docs/manpages/gbp-pq.sgml
@@ -26,6 +26,7 @@
       <arg><option>--topic=</option><replaceable>topic</replaceable></arg>
       <arg><option>--time-machine=</option><replaceable>num</replaceable></arg>
       <arg><option>--[no-]drop</option></arg>
+      <arg><option>--abbrev=</option><replaceable>num</replaceable></arg>
       <arg><option>--force</option></arg>
       <arg><option>--meta-closes=bug-close-tags</option></arg>
       <arg><option>--meta-closes-bugnum=bug-number-format</option></arg>
@@ -200,6 +201,18 @@
           a successful export</para>
         </listitem>
       </varlistentry>
+      <varlistentry>
+        <term><option>--abbrev=</option><replaceable>NUM</replaceable>
+        </term>
+        <listitem>
+          <para>
+         When exporting a patch queue abbreviate commit, nstead of showing the
+         full 40-byte hexadecimal object name in header lines, show only a
+         partial prefix of length <replaceable>NUM</replaceable>. This is
+         useful when existing patches were not generated by &gbp-pq;.
+          </para>
+        </listitem>
+      </varlistentry>
       <varlistentry>
         <term><option>--force</option></term>
         <listitem>
diff --git a/gbp/config.py b/gbp/config.py
index 3c484cd..aba0dcb 100644
--- a/gbp/config.py
+++ b/gbp/config.py
@@ -101,7 +101,8 @@ class GbpOptionParser(OptionParser):
     @cvar def_config_files: config files we parse
     @type def_config_files: dict (type, path)
     """
-    defaults = {'allow-unauthenticated': 'False',
+    defaults = {'abbrev': 7
+                'allow-unauthenticated': 'False',
                 'arch': '',
                 'author-date-is-committer-date': 'False',
                 'author-is-committer': 'False',
@@ -343,6 +344,8 @@ class GbpOptionParser(OptionParser):
         'drop':
             "In case of 'export' drop the patch-queue branch "
             "after export. Default is '%(drop)s'",
+        'abbrev':
+            "abbreviate commits to this length. default is '%(abbrev)s'",
         'commit':
             "commit changes after export, Default is '%(commit)s'",
         'rollback':
diff --git a/gbp/scripts/common/pq.py b/gbp/scripts/common/pq.py
index e9502ea..cf98a6c 100644
--- a/gbp/scripts/common/pq.py
+++ b/gbp/scripts/common/pq.py
@@ -185,7 +185,7 @@ def write_patch_file(filename, commit_info, diff):
 DEFAULT_PATCH_NUM_PREFIX_FORMAT = "%04d-"
 
 
-def format_patch(outdir, repo, commit_info, series, numbered=True,
+def format_patch(outdir, repo, commit_info, series, abbrev, numbered=True,
                  path_exclude_regex=None, topic='', name=None, renumber=False,
                  patch_num_prefix_format=DEFAULT_PATCH_NUM_PREFIX_FORMAT):
     """Create patch of a single commit"""
@@ -235,14 +235,14 @@ def format_patch(outdir, repo, commit_info, series, 
numbered=True,
     patch = None
     if paths:
         diff = repo.diff('%s^!' % commit_info['id'], paths=paths, stat=80,
-                         summary=True, text=True, abbrev=7, renames=False)
+                         summary=True, text=True, abbrev=abbrev, renames=False)
         patch = write_patch_file(filepath, commit_info, diff)
         if patch:
             series.append(patch)
     return patch
 
 
-def format_diff(outdir, filename, repo, start, end, path_exclude_regex=None):
+def format_diff(outdir, filename, repo, start, end, abbrev, 
path_exclude_regex=None):
     """Create a patch of diff between two repository objects"""
 
     info = {'author': repo.get_author_info()}
@@ -260,7 +260,7 @@ def format_diff(outdir, filename, repo, start, end, 
path_exclude_regex=None):
     paths = patch_path_filter(file_status, path_exclude_regex)
     if paths:
         diff = repo.diff(start, end, paths=paths, stat=80, summary=True,
-                         text=True, abbrev=7, renames=False)
+                         text=True, abbrev=abbrev, renames=False)
         return write_patch_file(filename, info, diff)
     return None
 
diff --git a/gbp/scripts/pq.py b/gbp/scripts/pq.py
index 66a8d0d..8f7adb0 100755
--- a/gbp/scripts/pq.py
+++ b/gbp/scripts/pq.py
@@ -98,7 +98,8 @@ def generate_patches(repo, start, end, outdir, options):
             if 'topic' in cmds:
                 topic = cmds['topic']
             name = cmds.get('name', None)
-            format_patch(outdir, repo, info, patches, options.patch_numbers,
+            format_patch(outdir, repo, info, patches, options.abbrev,
+                         numbered=options.patch_numbers,
                          topic=topic, name=name,
                          renumber=options.renumber,
                          patch_num_prefix_format=options.patch_num_format)
@@ -396,6 +397,7 @@ def build_parser(name):
     parser.add_config_file_option(option_name="time-machine", 
dest="time_machine", type="int")
     parser.add_boolean_config_file_option("drop", dest='drop')
     parser.add_boolean_config_file_option(option_name="commit", dest="commit")
+    parser.add_config_file_option(option_name="abbrev", dest="abbrev", 
type="int")
     parser.add_option("--force", dest="force", action="store_true", 
default=False,
                       help="in case of import even import if the branch 
already exists")
     parser.add_config_file_option(option_name="color", dest="color", 
type='tristate')
diff --git a/gbp/scripts/pq_rpm.py b/gbp/scripts/pq_rpm.py
index ebce7ff..9b7fb6a 100755
--- a/gbp/scripts/pq_rpm.py
+++ b/gbp/scripts/pq_rpm.py
@@ -86,9 +86,9 @@ def generate_patches(repo, start, end, outdir, options):
     merges = repo.get_commits(start, end_commit, options=['--merges'])
     if merges:
         # Shorten SHA1s
-        start_sha1 = repo.rev_parse(start, short=7)
-        merge_sha1 = repo.rev_parse(merges[0], short=7)
-        patch_fn = format_diff(outdir, None, repo, start_sha1, merge_sha1)
+        start_sha1 = repo.rev_parse(start, short=options.abbrev)
+        merge_sha1 = repo.rev_parse(merges[0], short=options.abbrev)
+        patch_fn = format_diff(outdir, None, repo, start_sha1, merge_sha1, 
options.abbrev)
         if patch_fn:
             gbp.log.info("Merge commits found! Diff between %s..%s written "
                          "into one monolithic diff" % (start_sha1, merge_sha1))
@@ -382,6 +382,7 @@ def build_parser(name):
     parser.add_config_file_option(option_name="color-scheme",
                                   dest="color_scheme")
     parser.add_config_file_option(option_name="tmp-dir", dest="tmp_dir")
+    parser.add_config_file_option(option_name="abbrev", dest="abbrev", 
type="int")
     parser.add_config_file_option(option_name="upstream-tag",
                                   dest="upstream_tag")
     parser.add_config_file_option(option_name="spec-file", dest="spec_file")

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