From 2371516af6acf6b7c4f434056b9a1a33f08aab0e Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 3 Apr 2017 16:14:43 +0100
Subject: [PATCH] wip ownsource, before system stuff

---
 hippotatlib/ownsource.py | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/hippotatlib/ownsource.py b/hippotatlib/ownsource.py
index b434f32..fab7365 100644
--- a/hippotatlib/ownsource.py
+++ b/hippotatlib/ownsource.py
@@ -33,13 +33,14 @@ class SourceShipmentPreparer():
     s.rune_portmanteau = r'''
             outfile=$1; shift
             rm -f "$outfile"
-            GZIP=-9 tar zcf "$outfile" "$@"'
+            GZIP=-9 tar zcf "$outfile" "$@"
     '''
     s.manifest_name='0000-MANIFEST.txt'
     # private
     s._destdir = destdir
     s._outcounter = 0
     s._manifest = []
+    s._dirmap = { }
 
   def src_filter_glob(s, src): # default s.src_filter
     for pat in s.src_filter_globs:
@@ -99,24 +100,33 @@ class SourceShipmentPreparer():
     script += ' -print0'
     return script
 
+  def manifest_append(s, name, infol):
+    s._manifest.append((name, ' '.join(infol)))
+
   def new_output_name(s, nametail, infol):
     s._outcounter += 1
     name = '%04d-%s' % (s._outcounter, nametail)
-    s._manifest.append((name, ' '.join(infol)))
+    s.manifest_append(name, infol)
     return name
 
-  def new_output_fh(s, nametail, infol):
-    name = s.new_output_name(nametail, infol)
-    return s.open_output_fh(name, 'wb')
-
   def open_output_fh(s, name, mode):
     return open(os.path.join(s._destdir, name), mode)
 
   def mk_from_dir(s, d, infol):
+    try: name = s._dirmap[d]
+    except KeyError: pass
+    else:
+      s.manifest_append(name, infol)
+      return
+
     if s.show_pathnames: infol.append(d)
     find_rune = s.src_find_rune(d)
     total_rune = s.rune_cpio % find_rune
-    fh = s.new_output_fh('src.cpio', infol)
+
+    name = s.new_output_name('src.cpio', infol)
+    s._dirmap[d] = name
+    fh = s.open_output_fh(name, 'wb')
+
     subprocess.run(s.rune_shell + [total_rune],
                    cwd=d,
                    stdin=subprocess.DEVNULL,
@@ -144,7 +154,7 @@ class SourceShipmentPreparer():
       cmdl.append(name)
       print('%s\t%s' % (name,info), file=mfh)
     mfh.close()
-    subprocess.run(s.rune_shell + cmdl,
+    subprocess.run(cmdl,
                    cwd=s._destdir,
                    stdin=subprocess.DEVNULL,
                    stdout=sys.stderr,
-- 
2.30.2