Make bob builds show the full source git commit hash in buildinfo.

The Windows binaries, and both Windows and Unix source archives,
output from a bob build will now include the full SHA-1 of the source
git commit in their buildinfo (hence in all the About boxes and
command-line version output).

This will be occasionally useful to me at release time (there was that
one embarrassing incident where I managed not to notice that I'd made
a release build from entirely the wrong commit), but mostly, it just
seems like an obviously useful thing to put in a general buildinfo
section now that there is one.

Buildscr

@@ -126,6 +126,7 @@ ifneq "$(SNAPSHOT)" "" in putty do echo '$#define SNAPSHOT' >> version.h
 in putty do echo '$#define TEXTVER "$(Textver)"' >> version.h
 in putty do echo '$#define SSHVER "$(Sshver)"' >> version.h
 in putty do echo '$#define BINARY_VERSION $(Winvercommas)' >> version.h
+in putty do echo '$#define SOURCE_COMMIT "$(vcsfullid)"' >> version.h
 
 # Set up the extra arguments for the main Windows nmake command. The
 # user can define XFLAGS and MAKEARGS on the bob command line, to pass

Recipe

@@ -330,10 +330,10 @@ puttyapp : [XT] GTKTERM uxmisc misc ldisc settings uxsel U_BE_ALL uxstore
          + xpmpucfg gtkapp
 osxlaunch : [UT] osxlaunch
 
-fuzzterm : [UT] UXTERM CHARSET misc uxmisc uxucs fuzzterm time settings
+fuzzterm : [UT] UXTERM CHARSET misc version uxmisc uxucs fuzzterm time settings
 	 + uxstore be_none
-testbn   : [UT] testbn sshbn misc conf tree234 uxmisc
-testbn   : [C] testbn sshbn misc conf tree234 winmisc LIBS
+testbn   : [UT] testbn sshbn misc version conf tree234 uxmisc
+testbn   : [C] testbn sshbn misc version conf tree234 winmisc LIBS
 
 # ----------------------------------------------------------------------
 # On Windows, provide a means of removing local test binaries that we

misc.c

@@ -1151,6 +1151,7 @@ int strendswith(const char *s, const char *t)
 char *buildinfo(const char *newline)
 {
     strbuf *buf = strbuf_new();
+    extern const char commitid[];      /* in commitid.c */
 
     strbuf_catf(buf, "Build platform: %d-bit %s",
                 (int)(CHAR_BIT * sizeof(void *)),
@@ -1207,5 +1208,7 @@ char *buildinfo(const char *newline)
     strbuf_catf(buf, "%sBuild option: DEBUG", newline);
 #endif
 
+    strbuf_catf(buf, "%sSource commit: %s", newline, commitid);
+
     return strbuf_to_str(buf);
 }

version.c

@@ -12,6 +12,7 @@
 
 const char ver[] = TEXTVER;
 const char sshver[] = SSHVER;
+const char commitid[] = SOURCE_COMMIT;
 
 /*
  * SSH local version string MUST be under 40 characters. Here's a

version.h

@@ -11,3 +11,4 @@
 #define TEXTVER "Unidentified build"
 #define SSHVER "PuTTY-Unidentified-Local-Build"
 #define BINARY_VERSION 0,0,0,0
+#define SOURCE_COMMIT "unavailable"