[calm - Cygwin server-side packaging maintenance script] branch master, updated. 20181020-16-g9d099cf

https://sourceware.org/git/gitweb.cgi?p=cygwin-apps/calm.git;h=9d099cf0816fd73758593c958d9aff804b534b2b

commit 9d099cf0816fd73758593c958d9aff804b534b2b
Author: Jon Turney <[email protected]>
Date:   Sun May 26 12:03:19 2019 +0100

    Write package metadata summary
    
    Write a summary of package metadata in json format.


Diff:
---
 calm/calm.py    |   10 ++++++++++
 calm/package.py |   54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+), 0 deletions(-)

diff --git a/calm/calm.py b/calm/calm.py
index 3b7ea79..76ffd39 100755
--- a/calm/calm.py
+++ b/calm/calm.py
@@ -56,6 +56,7 @@ from collections import defaultdict
 from contextlib import ExitStack
 import argparse
 import logging
+import lzma
 import os
 import shutil
 import signal
@@ -452,6 +453,15 @@ def do_output(args, state):
                 logging.debug("removing %s, unchanged %s" % (tmpfile.name, inifile))
                 os.remove(tmpfile.name)
 
+    # write packages.json
+    jsonfile = os.path.join(args.htdocs, 'packages.json.xz')
+    with tempfile.NamedTemporaryFile(mode='wb', delete=False) as tmpfile:
+        logging.debug('writing %s' % (tmpfile.name))
+        with lzma.open(tmpfile, 'wt') as lzf:
+            package.write_repo_json(args, state.packages, lzf)
+        logging.info("moving %s to %s" % (tmpfile.name, jsonfile))
+        shutil.move(tmpfile.name, jsonfile)
+
 
 #
 # daemonization loop
diff --git a/calm/package.py b/calm/package.py
index c90d955..5710185 100755
--- a/calm/package.py
+++ b/calm/package.py
@@ -29,6 +29,7 @@ from collections import defaultdict
 import copy
 import difflib
 import hashlib
+import json
 import logging
 import os
 import pprint
@@ -1024,6 +1025,59 @@ def upper_first_character(s):
 
 
 #
+# write a json summary of packages
+#
+def write_repo_json(args, packages, f):
+    package_list = set()
+    for arch in packages:
+        package_list.update(packages[arch])
+
+    mlist = maintainers.Maintainer.read(args, None)
+    pkg_maintainers = maintainers.Maintainer.invert(mlist)
+
+    pl = []
+    for pn in sorted(package_list):
+        po = None
+        arches = []
+        for arch in common_constants.ARCHES:
+            if pn in packages[arch]:
+                po = packages[arch][pn]
+                arches.append(arch)
+
+        bv = po.best_version
+
+        if po.version_hints[bv].get('external-source', None):
+            continue
+
+        versions = {}
+        for vr in sorted(po.version_hints.keys(), key=lambda v: SetupVersion(v)):
+            key = 'test' if 'test' in po.version_hints[vr] else 'stable'
+            versions[key] = versions.get(key, []) + [vr]
+
+        d = {
+            'name': pn,
+            'versions': versions,
+            'summary': po.version_hints[bv].get('sdesc', '').strip('"'),
+            'categories': po.version_hints[bv].get('category', '').split(),
+            'subpackages': [{'name': sp} for sp in po.is_used_by],
+            'arches': arches,
+        }
+
+        if pkg_maintainers[pn] and ('ORPHANED' not in pkg_maintainers[pn]):
+            d['maintainers'] = pkg_maintainers[pn]
+
+        pl.append(d)
+
+    j = {
+        'repository_name': args.release,
+        'timestamp': int(time.time()),
+        'num_packages': len(pl),
+        'packages': pl,
+    }
+    json.dump(j, f)
+
+
+#
 # merge sets of packages
 #
 # for each package which exist in both a and b: