From 1cc6f4c0fcc857bd86b9a8234d9ff75d5a6b9384 Mon Sep 17 00:00:00 2001
From: John Levon <john.levon@joyent.com>
Date: Thu, 12 Sep 2019 14:30:12 +0000
Subject: OS-7979 introduce /etc/versions/build (fix mismerge) Reviewed by:
 Jerry Jelinek <jerry.jelinek@joyent.com> Approved by: Jerry Jelinek
 <jerry.jelinek@joyent.com>

---
 usr/src/cmd/mdb/common/modules/mdb_ks/mdb_ks.c | 61 ++++++++++++++++++++++++--
 usr/src/cmd/nsadmin/Makefile                   | 32 +++++++++-----
 2 files changed, 78 insertions(+), 15 deletions(-)

diff --git a/usr/src/cmd/mdb/common/modules/mdb_ks/mdb_ks.c b/usr/src/cmd/mdb/common/modules/mdb_ks/mdb_ks.c
index 46de364ba0..68b2e9d362 100644
--- a/usr/src/cmd/mdb/common/modules/mdb_ks/mdb_ks.c
+++ b/usr/src/cmd/mdb/common/modules/mdb_ks/mdb_ks.c
@@ -1817,18 +1817,73 @@ mdb_get_lbolt(void)
 	return ((ts/nsec) - lbi.lbi_debug_time);
 }
 
+#define	startswith(a, b) (strncmp((a), (b), strlen(b)) == 0)
+
+/*
+ * Dig out the branch and revision of the illumos-joyent repo, if we were
+ * provided with it.  This is a rather fragile JSON parser, in that it requires
+ * JSON formatted exactly as per the boot_archive.gitstatus file that
+ * "buildversion" is built from.
+ */
 void
 mdb_print_buildversion(void)
 {
+	boolean_t in_joyent = B_FALSE;
 	GElf_Sym sym;
 
-	if (mdb_lookup_by_name("buildversion", &sym) != 0)
-		return;
+	if (mdb_lookup_by_name("buildversion", &sym) != 0) {
+		/* Older kernels used this name. */
+		if (mdb_lookup_by_name("gitstatus_start", &sym) != 0)
+			return;
+	}
 
 	char *str = mdb_zalloc(4096, UM_SLEEP | UM_GC);
 
 	if (mdb_readstr(str, 4096, sym.st_value) < 1)
 		return;
 
-	mdb_printf("build version: %s\n", str);
+	/*
+	 * Each line is of the form
+	 *
+	 *	"repo": "smartos-live",
+	 */
+	for (char *line = strtok(str, "\n"); line != NULL;
+	    line = strtok(NULL, "\n")) {
+		/* skip whitespace and first " */
+		line += strspn(line, " \t\"");
+
+		if (startswith(line, "repo")) {
+			line += sizeof ("repo") - 1;
+			line += strspn(line, " \t\":");
+
+			if (startswith(line, "illumos-joyent"))
+				in_joyent = B_TRUE;
+			else if (in_joyent)
+				return;
+			continue;
+		}
+
+		if (!in_joyent)
+			continue;
+
+		if (startswith(line, "branch")) {
+			char *trail = strrchr(line, '"');
+			if (trail != NULL)
+				*trail = '\0';
+			line += sizeof ("branch") - 1;
+			line += strspn(line, " \t\":");
+			mdb_printf("git branch: %s\n", line);
+			continue;
+		}
+
+		if (startswith(line, "rev")) {
+			char *trail = strrchr(line, '"');
+			if (trail != NULL)
+				*trail = '\0';
+			line += sizeof ("rev") - 1;
+			line += strspn(line, " \t\":");
+			mdb_printf("git rev: %s\n", line);
+			continue;
+		}
+	}
 }
diff --git a/usr/src/cmd/nsadmin/Makefile b/usr/src/cmd/nsadmin/Makefile
index 3525d407e7..45bdcc6701 100644
--- a/usr/src/cmd/nsadmin/Makefile
+++ b/usr/src/cmd/nsadmin/Makefile
@@ -35,10 +35,21 @@ include ../Makefile.cmd
 
 ROOTETCFILES = $(ETCFILES:%=$(ROOTETC)/%)
 ROOTETCSKEL= $(ROOTETC)/skel
-ROOTETCSKELPROG= $(PROGSKEL:%=$(ROOTETCSKEL)/%)
+ROOTETCSKELFILES = $(ETCSKELFILES:%=$(ROOTETCSKEL)/%)
 ROOTETCVERSIONS= $(ROOTETC)/versions
-ROOTETCVERSIONSPROG= $(ROOTETCVERSIONS)/build
-ROOTROOTPROG= $(PROGROOT:%=$(ROOTROOT)/%)
+ROOTETCVERSIONSFILES = $(ROOTETCVERSIONS)/build
+ETCBASHDIR = $(ROOTETC)/bash
+ROOTETCBASHFILES = $(ETCBASHFILES:%=$(ETCBASHDIR)/%)
+ETCBASHCOMPLETIONDDIR = $(ETCBASHDIR)/bash_completion.d
+ROOTETCBASHCOMPLETIONDFILES = \
+    $(ETCBASHCOMPLETIONDFILES:%=$(ETCBASHCOMPLETIONDDIR)/%)
+ROOTROOT= $(ROOT)/root
+ROOTROOTFILES = $(ROOTFILES:%=$(ROOTROOT)/%)
+
+FILES = $(ROOTETCFILES) $(ROOTETCSKELFILES) \
+    $(ROOTETCBASHFILES) $(ROOTETCBASHCOMPLETIONDFILES) \
+    $(ROOTROOTFILES) $(ROOTETCVERSIONSFILES)
+
 FILEMODE= 0644
 
 .KEEP_STATE:
@@ -82,20 +93,17 @@ $(ROOTROOT)/.bashrc: dot-bashrc.sh
 $(ROOTETCBASHDIR)/%: %
 	$(INS.file)
 
-$(ROOTROOT) \
-$(ROOTETCVERSIONS) \
-$(ROOTETCSKEL):
-	$(INS.dir)
+$(ROOTETCBASHCOMPLETIONDDIR)/%: %
+	$(INS.file)
 
-$(ROOTETCVERSIONSPROG): $(ROOTETCVERSIONS) FRC
+$(ROOTETCVERSIONSFILES): $(ROOTETCVERSIONS) FRC
 	if [[ -n "$$BUILDVERSION_EXEC" ]]; then \
-		$$BUILDVERSION_EXEC >$(ROOTETCVERSIONSPROG) ; \
+		$$BUILDVERSION_EXEC >$(ROOTETCVERSIONSFILES) ; \
 	else \
-		touch $(ROOTETCVERSIONSPROG) ; \
+		touch $(ROOTETCVERSIONSFILES) ; \
 	fi
 
-install: all $(ROOTETCSKEL) $(ROOTETCPROG) \
-    $(ROOTETCSKELPROG) $(ROOTROOTPROG) $(ROOTETCVERSIONSPROG)
+install: all $(FILES)
 
 clean:
 
-- 
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