# HG changeset patch
# User Franz Glasner <hg@dom66.de>
# Date 1538830722 -7200
# Node ID f4f13a25fe3ed015bc881c3be1768e28bb76aae5
# Parent  d3c66ff43b4f514a8bdecf66a14b29c2e2c14270
Implement a --show command for timestamps.

Because the --show command needs a "--rev" at times remove the short options
for "--restore"  and (for consistency) from "--save": "-r" would conflict with
the common "-r" for requesting a revision.

diff -r d3c66ff43b4f -r f4f13a25fe3e extensions/timestamps.py
--- a/extensions/timestamps.py	Sat Oct 06 11:54:58 2018 +0200
+++ b/extensions/timestamps.py	Sat Oct 06 14:58:42 2018 +0200
@@ -108,8 +108,10 @@
 @command(
     "timestamps",
     [
-        ("s", "save", None, _("save modification times")),
-        ("r", "restore", None, _("restore modification times")),
+        ("", "save", None, _("save modification times")),
+        ("", "restore", None, _("restore modification times")),
+        ("", "show", None, _("show the contents of the timestamps database")),
+        ("r", "rev", "", _("the revision to use"), _("REV")),
         ("", "tsconfig", "", _("use an alternate configuration file"), _("TSCONFIG")),
         ("", "amend", None, _("amend the current database file instead of generating a fresh one")),
     ],
@@ -124,7 +126,7 @@
 
     """
     opts = pycompat.byteskwargs(opts)
-    ctx = scmutil.revsingle(repo, None)
+    ctx = scmutil.revsingle(repo, opts.get("rev"))
     if not ctx:
         raise error.Abort(_("no Mercurial working directory"))
     if opts.get("save"):
@@ -135,8 +137,12 @@
                         amend=opts.get("amend"))
     elif opts.get("restore"):
         restore_timestamps(ui, repo, ctx, tsconfig=opts.get("tsconfig"))
+    elif opts.get("show"):
+        fm = ui.formatter("timestamps", opts)
+        show_timestamps(ui, repo, ctx, fm, tsconfig=opts.get("tsconfig"))
     else:
-        raise error.Abort(_("must give a command: --save or --restore"))
+        raise error.Abort(_("must give a command:"
+                            "--save or --restore or --show"))
 
 
 def save_timestamps(ui,
@@ -176,6 +182,43 @@
     ts = Timestamps.from_filename(repo.wjoin(TIMESTAMPS_DATABASE))
 
 
+def show_timestamps(ui, repo, ctx, fm,
+                    tsconfig=None):
+    #
+    # NOTE: no need for a local repo here
+    #
+    matcher = gen_matcher(repo, ctx, tsconfig=tsconfig)
+    ts = Timestamps.from_filename(repo.wjoin(TIMESTAMPS_DATABASE))
+    if ui.debugflag or ui.verbose:
+        files = iter(ts)
+    else:
+        files = iter(ts.files())
+    ui.pager("timestamps")
+    with fm:
+        for f in files:
+            fm.startitem()
+            fm.condwrite(not ui.debugflag and ui.verbose and f == "/version/",
+                         "version",
+                         "version=%d\n",
+                         ts[f])
+            fm.condwrite(not ui.debugflag and ui.verbose and f == "/encoding/",
+                         "encoding",
+                         "encoding=%s\n",
+                         ts[f])
+            fm.condwrite(not ui.debugflag and ui.verbose and f.startswith("/comment-"),
+                         "comment",
+                         "%s\n",
+                         ts[f])
+            fm.condwrite(not ui.debugflag and ui.verbose and f.startswith("/-"),
+                         "",
+                         "\n")
+            fm.condwrite(ui.debugflag or not f.startswith("/"),
+                         "date file",
+                         "%s\t%s\n",
+                         ts[f],
+                         f)
+
+
 def gen_matcher(repo, ctx, tsconfig=None):
     """Read the configuration file and return a Mercurial matcher which is
     configured.