Implement shallow copy of only one branch

It can be useful for builders, so they don't have to clone whole
repository every time.

diff --git a/builder.sh b/builder.sh
index efd2815ef18f455ee790a50b4eafb3f1571c1769..bdd62ca19bbce328f10679f22763c62e2dcb8c59 100755 (executable)
--- a/builder.sh
+++ b/builder.sh
@@ -115,6 +115,7 @@ CVS_SERVER="cvs.pld-linux.org"
 CVSTAG=""
 GIT_SERVER="git://github.com/draenog"
 HEAD_DETACHED=""
+DEPTH=""
 
 RES_FILE=""
 
@@ -248,7 +249,7 @@ usage() {
        echo "\
 Usage: builder [-D|--debug] [-V|--version] [--short-version] [--as_anon] [-a|--add_cvs] [-b|-ba|--build]
 [-bb|--build-binary] [-bs|--build-source] [-bc] [-bi] [-bl] [-u|--try-upgrade]
-[{-cf|--cvs-force}] [{-B|--branch} <branch>] [{-d|--cvsroot} <cvsroot>]
+[{-cf|--cvs-force}] [{-B|--branch} <branch>] [{-d|--cvsroot} <cvsroot>] [--depth <number>]
 [-g|--get] [-h|--help] [--ftp] [--http] [{-l|--logtofile} <logfile>] [-m|--mr-proper]
 [-q|--quiet] [--date <yyyy-mm-dd> [-r <cvstag>] [{-T|--tag <cvstag>]
 [-Tvs|--tag-version-stable] [-Ts|--tag-stable] [-Tv|--tag-version]
@@ -288,6 +289,8 @@ Usage: builder [-D|--debug] [-V|--version] [--short-version] [--as_anon] [-a|--a
                     - setup \$CVSROOT,
 --define <macro> <value>
                     - define a macro <macro> with value <value>,
+--depth <number>
+                                       - make shallow fetch
 --alt_kernel <kernel>
                     - same as --define 'alt_kernel <kernel>'
 --nodeps            - rpm won't check any dependences
@@ -735,24 +738,38 @@ get_spec() {
        fi
 
        if [ "$NOCVSSPEC" != "yes" ]; then
-               if [ -d "$ASSUMED_NAME/.git" ]; then
-                       git fetch origin || Exit_error err_no_spec_in_repo
-               elif [ "$ADD_PACKAGE_CVS" = "yes" ]; then
-                       if [ ! -r "$ASSUMED_NAME/$SPECFILE" ]; then
-                               echo "ERROR: No package to add ($ASSUMED_NAME/$SPECFILE)" >&2
-                               exit 101
+               if [ -z "$DEPTH" ]; then
+                       if [ -d "$ASSUMED_NAME/.git" ]; then
+                               git fetch origin || Exit_error err_no_spec_in_repo
+                       elif [ "$ADD_PACKAGE_CVS" = "yes" ]; then
+                               if [ ! -r "$ASSUMED_NAME/$SPECFILE" ]; then
+                                       echo "ERROR: No package to add ($ASSUMED_NAME/$SPECFILE)" >&2
+                                       exit 101
+                               fi
+                               Exit_error err_not_implemented
+                       else
+                               (
+                                       unset GIT_WORK_TREE
+                                       git clone  ${GIT_SERVER}/${ASSUMED_NAME}.git || {
+                                               # softfail if new package, i.e not yet added to cvs
+                                               [ ! -f "$ASSUMED_NAME/$SPECFILE" ] && Exit_error err_no_spec_in_repo
+                                               echo "Warning: package not in CVS - assuming new package"
+                                               NOCVSSPEC="yes"
+                                       }
+                               )
                        fi
-                       Exit_error err_not_implemented
                else
-                       (
-                               unset GIT_WORK_TREE
-                               git clone  ${GIT_SERVER}/${ASSUMED_NAME}.git || {
-                                       # softfail if new package, i.e not yet added to cvs
-                                       [ ! -f "$ASSUMED_NAME/$SPECFILE" ] && Exit_error err_no_spec_in_repo
-                                       echo "Warning: package not in CVS - assuming new package"
-                                       NOCVSSPEC="yes"
-                               }
-                       )
+                       if [ ! -d "$ASSUMED_NAME/.git" ]; then
+                               if [ ! -d "$ASSUMED_NAME" ]; then
+                                       mkdir $ASSUMED_NAME
+                               fi
+                               git init
+                               git remote add origin ${GIT_SERVER}/${ASSUMED_NAME}.git
+                       fi
+                       git fetch "$DEPTH" origin ${CVSTAG}:remotes/origin/${CVSTAG} || {
+                               echo >&2 "Error: branch $CVSTAG does not exist"
+                               exit 3
+                       }
                fi
 
                cvsignore_df .gitignore
@@ -1987,6 +2004,10 @@ while [ $# -gt 0 ]; do
                        CVS_FORCE="-f"; shift;;
                -d | --cvsroot )
                        shift; CVSROOT="${1}"; shift ;;
+               --depth )
+                       DEPTH="--depth=$2"
+                       shift 2
+                       ;;
                -g | --get )
                        COMMAND="get"; shift ;;
                -h | --help )