changeset 41728:36b62a522814

templatekw: make negrev return empty for wdir() and nullrev I considered just returning the same output that {rev} returns here, but {rev} also returns essentially gibberish: either an INT_MAX-kind of variable for wdir() or -1 for null. Since these are numbers that are intended to be used for calculations, and since the numbers for wdir() and -1 are not really very helpful for calculation (and worse, when used as a revision number -1 is equal to unhidden tip), I figured the most reasonable thing to do here is to just return nothing for negrev. This could potentially break scripts that are expecting to parse a nonempty integer out of a {negrev}, but that seems like a very remote concern at this juncture.
author Jordi Gutiérrez Hermoso <jordigh@octave.org>
date Mon, 18 Feb 2019 23:43:40 -0500
parents e1643a0455c8
children 4d5f48782921
files mercurial/templatekw.py tests/test-template-keywords.t
diffstat 2 files changed, 10 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/templatekw.py	Mon Feb 18 18:44:21 2019 -0500
+++ b/mercurial/templatekw.py	Mon Feb 18 23:43:40 2019 -0500
@@ -559,8 +559,11 @@
     """Integer. The repository-local changeset negative revision number,
     which counts in the opposite direction."""
     ctx = context.resource(mapping, 'ctx')
+    rev = ctx.rev()
+    if rev is None or rev < 0:  # wdir() or nullrev?
+        return None
     repo = context.resource(mapping, 'repo')
-    return scmutil.intrev(ctx) - len(repo)
+    return rev - len(repo)
 
 @templatekeyword('node', requires={'ctx'})
 def shownode(context, mapping):
--- a/tests/test-template-keywords.t	Mon Feb 18 18:44:21 2019 -0500
+++ b/tests/test-template-keywords.t	Mon Feb 18 23:43:40 2019 -0500
@@ -76,6 +76,12 @@
   $ hg log -r 'wdir()' -T '{manifest}\n'
   2147483647:ffffffffffff
 
+However, for negrev, we refuse to output anything (as well as for null)
+
+  $ hg log -r 'wdir() + null' -T 'bla{negrev}nk\n'
+  blank
+  blank
+
 Changectx-derived keywords are disabled within {manifest} as {node} changes:
 
   $ hg log -r0 -T 'outer:{p1node} {manifest % "inner:{p1node}"}\n'