create_tarball: Add support for creating tarballs from head on a git tag.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

create_all_tarballs

@@ -70,11 +70,17 @@ cd `git rev-parse --show-toplevel`
 # Check remote branch
 branch=`git symbolic-ref -q HEAD | sed "s|^refs/heads/||"`
 if [[ -z "$branch" ]]; then
-    branch=`git branch --contains HEAD | egrep -v "no branch|detached" | head -n1 | cut -c 3-`
+    branch_detached=`git branch --contains HEAD | egrep "^\* \(HEAD detached at" | head -n1 | sed "s|^\* (HEAD detached at \([^)]*\)).*$|\1|"`
+    branch=`git tag | grep -Fx "${branch_detached}"`
+fi
+if [[ -z "$branch" ]]; then
+    branch=`git branch -r --contains HEAD | egrep -v "no branch|detached" | head -n1 | cut -c 3-`
+    branch=${branch#origin/}
 fi
 if [[ -z "$branch" ]] ||
-   [[ -z "`git rev-parse --symbolic-full-name --remotes=\"*/$branch\"`" ]]; then
-        echo "There is not active upstream branch.  Exiting..."
+   ( [[ -z "`git rev-parse --symbolic-full-name --remotes=\"*/$branch\"`" ]] &&
+     [[ -z "`git tag | grep -Fx \"${branch}\"`" ]] ); then
+    echo "There is not active upstream branch. Exiting."
     exit 1
 fi
 
@@ -106,12 +112,18 @@ if [ "$TARGET" != "${TARGET#3.5.}" ]; then
     else
         targetBranch=master
     fi
+    if [ "$branch" = "v${TARGET}" ]; then
+        targetBranch=v${TARGET}
+    fi
 else
     if [ "$TARGET" != "${TARGET%.0}" ]; then
         targetBranch=master
     else
         targetBranch=r${TARGET%.*}.x
     fi
+    if [ "$branch" = "r${TARGET}" ]; then
+        targetBranch=r${TARGET}
+    fi
 fi
 if [ "$branch" != "$targetBranch" ]; then
     echo "Target $TARGET is not valid on $branch branch. Exiting."

create_tarball

@@ -30,11 +30,17 @@ fi
 # Check remote branch
 branch=`git symbolic-ref -q HEAD | sed "s|^refs/heads/||"`
 if [[ -z "$branch" ]]; then
-    branch=`git branch --contains HEAD | egrep -v "no branch|detached" | head -n1 | cut -c 3-`
+    branch_detached=`git branch --contains HEAD | egrep "^\* \(HEAD detached at" | head -n1 | sed "s|^\* (HEAD detached at \([^)]*\)).*$|\1|"`
+    branch=`git tag | grep -Fx "${branch_detached}"`
+fi
+if [[ -z "$branch" ]]; then
+    branch=`git branch -r --contains HEAD | egrep -v "no branch|detached" | head -n1 | cut -c 3-`
+    branch=${branch#origin/}
 fi
 if [[ -z "$branch" ]] ||
-   [[ -z "`git rev-parse --symbolic-full-name --remotes=\"*/$branch\"`" ]]; then
-        echo "There is not active upstream branch.  Exiting..."
+   ( [[ -z "`git rev-parse --symbolic-full-name --remotes=\"*/$branch\"`" ]] &&
+     [[ -z "`git tag | grep -Fx \"${branch}\"`" ]] ); then
+    echo "There is not active upstream branch. Exiting."
     exit 1
 fi
 
@@ -82,12 +88,18 @@ if [ "$TARGET" != "${TARGET#3.5.}" ]; then
     else
         targetBranch=master
     fi
+    if [ "$branch" = "v${TARGET}" ]; then
+        targetBranch=v${TARGET}
+    fi
 else
     if [ "$TARGET" != "${TARGET%.0}" ]; then
         targetBranch=master
     else
         targetBranch=r${TARGET%.*}.x
     fi
+    if [ "$branch" = "r${TARGET}" ]; then
+        targetBranch=r${TARGET}
+    fi
 fi
 if [ "$branch" != "$targetBranch" ]; then
     echo "Target $TARGET is not valid on $branch branch. Exiting."
@@ -128,11 +140,15 @@ if [[ -n "$target_tag" ]] && \
 fi
 
 # Calculate version
-tag=`git tag | \
+if [[ -z "$target_tag" ]]; then
+  tag=`git tag | \
        sed "s|^\([^0-9]\)|\1.|" | sort -t. -k 1,1nr -k 2,2nr -k 3,3nr -k 4,4nr -k 5,5nr | sed "s|^\([^0-9]\)\.|\1|" | \
        while read t; do \
        git branch --contains $t | cut -c 3- | grep -x "$branch" >/dev/null && \
        echo "$t..HEAD" && break; done`
+else
+  tag="$target_tag..HEAD"
+fi
 
 count=`git log $tag --pretty=oneline | wc -l`