Merge build identification to default branch.

Author: birkenfeld

Include/pythonrun.h

@@ -182,6 +182,8 @@ PyAPI_FUNC(const char *) Py_GetBuildInfo(void);
 PyAPI_FUNC(const char *) _Py_svnversion(void);
 PyAPI_FUNC(const char *) Py_SubversionRevision(void);
 PyAPI_FUNC(const char *) Py_SubversionShortBranch(void);
+PyAPI_FUNC(const char *) _Py_hgidentifier(void);
+PyAPI_FUNC(const char *) _Py_hgversion(void);
 #endif
 
 /* Internal -- various one-time initializations */

Lib/platform.py

@@ -1311,7 +1311,9 @@ def _sys_version(sys_version=None):
         name = 'CPython'
         builddate = builddate + ' ' + buildtime
 
-    if hasattr(sys, 'subversion'):
+    if hasattr(sys, '_mercurial'):
+        _, branch, revision = sys._mercurial
+    elif hasattr(sys, 'subversion'):
         # sys.subversion was added in Python 2.5
         _, branch, revision = sys.subversion
     else:

Lib/test/test_platform.py

@@ -57,11 +57,13 @@ def test_processor(self):
     def setUp(self):
         self.save_version = sys.version
         self.save_subversion = sys.subversion
+        self.save_mercurial = sys._mercurial
         self.save_platform = sys.platform
 
     def tearDown(self):
         sys.version = self.save_version
         sys.subversion = self.save_subversion
+        sys._mercurial = self.save_mercurial
         sys.platform = self.save_platform
 
     def test_sys_version(self):
@@ -109,10 +111,12 @@ def test_sys_version(self):
                 sys_versions.items():
             sys.version = version_tag
             if subversion is None:
+                if hasattr(sys, "_mercurial"):
+                    del sys._mercurial
                 if hasattr(sys, "subversion"):
                     del sys.subversion
             else:
-                sys.subversion = subversion
+                sys._mercurial = subversion
             if sys_platform is not None:
                 sys.platform = sys_platform
             self.assertEqual(platform.python_implementation(), info[0])

Makefile.pre.in

@@ -37,6 +37,9 @@ RANLIB=		@RANLIB@
 SVNVERSION=	@SVNVERSION@
 SOABI=		@SOABI@
 LDVERSION=	@LDVERSION@
+HGVERSION=	@HGVERSION@
+HGTAG=		@HGTAG@
+HGBRANCH=	@HGBRANCH@
 
 GNULD=		@GNULD@
 
@@ -552,7 +555,12 @@ Modules/getbuildinfo.o: $(PARSER_OBJS) \
 		$(SIGNAL_OBJS) \
 		$(MODOBJS) \
 		$(srcdir)/Modules/getbuildinfo.c
-	$(CC) -c $(PY_CORE_CFLAGS) -DSVNVERSION="\"`LC_ALL=C $(SVNVERSION)`\"" -o $@ $(srcdir)/Modules/getbuildinfo.c
+	$(CC) -c $(PY_CORE_CFLAGS) \
+	      -DSVNVERSION="\"`LC_ALL=C $(SVNVERSION)`\"" \
+	      -DHGVERSION="\"`LC_ALL=C $(HGVERSION)`\"" \
+	      -DHGTAG="\"`LC_ALL=C $(HGTAG)`\"" \
+	      -DHGBRANCH="\"`LC_ALL=C $(HGBRANCH)`\"" \
+	      -o $@ $(srcdir)/Modules/getbuildinfo.c
 
 Modules/getpath.o: $(srcdir)/Modules/getpath.c Makefile
 	$(CC) -c $(PY_CORE_CFLAGS) -DPYTHONPATH='"$(PYTHONPATH)"' \

Modules/getbuildinfo.c

@@ -28,15 +28,28 @@
 #define SVNVERSION "$WCRANGE$$WCMODS?M:$"
 #endif
 
+/* XXX Only unix build process has been tested */
+#ifndef HGVERSION
+#define HGVERSION ""
+#endif
+#ifndef HGTAG
+#define HGTAG ""
+#endif
+#ifndef HGBRANCH
+#define HGBRANCH ""
+#endif
+
 const char *
 Py_GetBuildInfo(void)
 {
     static char buildinfo[50];
-    const char *revision = Py_SubversionRevision();
+    const char *revision = _Py_hgversion();
     const char *sep = *revision ? ":" : "";
-    const char *branch = Py_SubversionShortBranch();
+    const char *hgid = _Py_hgidentifier();
+    if (!(*hgid))
+        hgid = "default";
     PyOS_snprintf(buildinfo, sizeof(buildinfo),
-                  "%s%s%s, %.20s, %.9s", branch, sep, revision,
+                  "%s%s%s, %.20s, %.9s", hgid, sep, revision,
                   DATE, TIME);
     return buildinfo;
 }
@@ -50,3 +63,21 @@ _Py_svnversion(void)
         return svnversion; /* it was interpolated, or passed on command line */
     return "Unversioned directory";
 }
+
+const char *
+_Py_hgversion(void)
+{
+    return HGVERSION;
+}
+
+const char *
+_Py_hgidentifier(void)
+{
+    const char *hgtag, *hgid;
+    hgtag = HGTAG;
+    if ((*hgtag) && strcmp(hgtag, "tip") != 0)
+        hgid = hgtag;
+    else
+        hgid = HGBRANCH;
+    return hgid;
+}

Python/sysmodule.c

@@ -1599,6 +1599,9 @@ _PySys_Init(void)
     SET_SYS_FROM_STRING("subversion",
                         Py_BuildValue("(sss)", "CPython", branch,
                                       svn_revision));
+    SET_SYS_FROM_STRING("_mercurial",
+                        Py_BuildValue("(szz)", "CPython", _Py_hgidentifier(),
+                                      _Py_hgversion()));
     SET_SYS_FROM_STRING("dont_write_bytecode",
                          PyBool_FromLong(Py_DontWriteBytecodeFlag));
     SET_SYS_FROM_STRING("api_version",