buildroot: add /etc/br-version with version info to target dir

diff --git a/project/project.mk b/project/project.mk
index 79a03ab9dba41fe58f80f5f77b1cd661c21d8ca8..c2d478b10fb5c2c73a4dd04a2d3596fd6de529b1 100644 (file)
--- a/project/project.mk
+++ b/project/project.mk
@@ -3,17 +3,21 @@ PROJECT_FILE:=$(LOCAL)/$(PROJECT)/$(PROJECT).config
 
 .PHONY: target-host-info saveconfig getconfig
 
-target-host-info: $(TARGET_DIR)/etc/issue $(TARGET_DIR)/etc/hostname
+target-host-info: $(TARGET_DIR)/etc/issue $(TARGET_DIR)/etc/hostname $(TARGET_DIR)/etc/br-version
 
 $(TARGET_DIR)/etc/issue: .config
        mkdir -p $(TARGET_DIR)/etc
-       echo "" > $(TARGET_DIR)/etc/issue
-       echo "" >> $(TARGET_DIR)/etc/issue
-       echo "$(BANNER)" >> $(TARGET_DIR)/etc/issue
+       echo "" > $@
+       echo "" >> $@
+       echo "$(BANNER)" >> $@
 
 $(TARGET_DIR)/etc/hostname: .config
        mkdir -p $(TARGET_DIR)/etc
-       echo "$(TARGET_HOSTNAME)" > $(TARGET_DIR)/etc/hostname
+       echo "$(TARGET_HOSTNAME)" > $@
+
+$(TARGET_DIR)/etc/br-version: .config
+       mkdir -p $(TARGET_DIR)/etc
+       echo $(BR2_VERSION)$(shell $(TOPDIR)/scripts/setlocalversion) >$@
 
 saveconfig: $(CONFIG)/conf
        mkdir -p $(LOCAL)/$(PROJECT)

diff --git a/scripts/setlocalversion b/scripts/setlocalversion
new file mode 100755 (executable)
index 0000000..1c1bdaf
--- /dev/null
+++ b/scripts/setlocalversion
@@ -0,0 +1,63 @@
+#!/bin/sh
+# Print additional version information for non-release trees.
+
+usage() {
+       echo "Usage: $0 [srctree]" >&2
+       exit 1
+}
+
+cd "${1:-.}" || usage
+
+# Check for git and a git repo.
+if head=`git rev-parse --verify HEAD 2>/dev/null`; then
+       # Do we have an untagged version?
+       if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
+               git describe | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+       fi
+
+       # Are there uncommitted changes?
+       git update-index --refresh --unmerged > /dev/null
+       if git diff-index --name-only HEAD | grep -v "^scripts/package" \
+           | read dummy; then
+               printf '%s' -dirty
+       fi
+
+       # All done with git
+       exit
+fi
+
+# Check for mercurial and a mercurial repo.
+if hgid=`hg id 2>/dev/null`; then
+       tag=`printf '%s' "$hgid" | cut -d' ' -f2`
+
+       # Do we have an untagged version?
+       if [ -z "$tag" -o "$tag" = tip ]; then
+               id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
+               printf '%s%s' -hg "$id"
+       fi
+
+       # Are there uncommitted changes?
+       # These are represented by + after the changeset id.
+       case "$hgid" in
+               *+|*+\ *) printf '%s' -dirty ;;
+       esac
+
+       # All done with mercurial
+       exit
+fi
+
+# Check for svn and a svn repo.
+if rev=`svn info 2>/dev/null | grep '^Revision'`; then
+       rev=`echo $rev | awk '{print $NF}'`
+       changes=`svn status 2>/dev/null | grep '^[AMD]' | wc -l`
+
+       # Are there uncommitted changes?
+       if [ $changes != 0 ]; then
+               printf -- '-svn%s%s%s' "$rev" -dirty "$changes"
+       else
+               printf -- '-svn%s' "$rev"
+       fi
+
+       # All done with svn
+       exit
+fi