From 62b2718261b23075f276367697b7a2bbdba790ae Mon Sep 17 00:00:00 2001
From: James R <justsomejames2@gmail.com>
Date: Thu, 29 Sep 2022 15:18:41 -0700
Subject: [PATCH] Print on the title screen and in console if there are
 uncommitted changes

---
 src/Makefile   | 8 ++++++++
 src/comptime.c | 7 +++++++
 src/d_netcmd.c | 3 +++
 src/doomdef.h  | 1 +
 src/f_finale.c | 2 ++
 5 files changed, 21 insertions(+)

diff --git a/src/Makefile b/src/Makefile
index 2367553ed..3c621001d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -195,6 +195,14 @@ passthru_opts:=
 # separate suffix with an underscore
 exesuffix:=$(call _,$(EXESUFFIX))
 
+# If there are uncommitted changes
+# -uno: disregard untracked files
+# Warning: this can only be accurate for comptime.c since
+# that file is always recompiled!
+ifneq ($(shell git status --porcelain -uno),)
+opts+=-DCOMPVERSION_UNCOMMITTED
+endif
+
 include Makefile.d/platform.mk
 include Makefile.d/features.mk
 include Makefile.d/versions.mk
diff --git a/src/comptime.c b/src/comptime.c
index 398eda074..81b5ec7d6 100644
--- a/src/comptime.c
+++ b/src/comptime.c
@@ -15,6 +15,13 @@ const char *comprevision = SRB2_COMP_REVISION;
 #elif (defined(COMPVERSION))
 #include "comptime.h"
 
+const int compuncommitted =
+#if (defined(COMPVERSION_UNCOMMITTED))
+1;
+#else
+0;
+#endif
+
 #else
 const char *compbranch = "Unknown";
 const char *comprevision = "illegal";
diff --git a/src/d_netcmd.c b/src/d_netcmd.c
index 58a17204b..8ecad7285 100644
--- a/src/d_netcmd.c
+++ b/src/d_netcmd.c
@@ -4756,6 +4756,9 @@ static void Command_Version_f(void)
 	CONS_Printf("\x87" "DEVELOP " "\x80");
 #endif
 
+	if (compuncommitted)
+		CONS_Printf("\x85" "! UNCOMMITTED CHANGES ! " "\x80");
+
 	CONS_Printf("\n");
 }
 
diff --git a/src/doomdef.h b/src/doomdef.h
index 6997d7951..30c53c5c8 100644
--- a/src/doomdef.h
+++ b/src/doomdef.h
@@ -613,6 +613,7 @@ UINT32 quickncasehash (const char *p, size_t n)
 
 // Compile date and time and revision.
 extern const char *compdate, *comptime, *comprevision, *compbranch;
+extern int compuncommitted;
 
 // Disabled code and code under testing
 // None of these that are disabled in the normal build are guaranteed to work perfectly
diff --git a/src/f_finale.c b/src/f_finale.c
index 005a4c6a1..7b5651535 100644
--- a/src/f_finale.c
+++ b/src/f_finale.c
@@ -2006,6 +2006,8 @@ void F_TitleScreenDrawer(void)
 #else // Regular build
 					addtext(V_ALLOWLOWERCASE|V_TRANSLUCENT, va("%s", VERSIONSTRING));
 #endif
+					if (compuncommitted)
+						addtext(V_REDMAP|V_STRINGDANCE, "! UNCOMMITTED CHANGES !");
 				}
 #undef addtext
 			}