vcsh: Implement skeleton of `vcsh foreach`

[code/vcsh.git] / vcsh

diff --git a/vcsh b/vcsh
index af67e180a1b7af65b87da25cdafd559c5a5cdcbd..a5c3f487c0707ad6ddc2cda61e37967dd4e776b2 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -19,12 +19,12 @@
 # If '.git-HEAD' is appended to the version, you are seeing an unreleased
 # version of vcsh; the master branch is supposed to be clean at all times
 # so you can most likely just use it nonetheless
-VERSION='1.20141025'
+VERSION='1.20141026'
 SELF=$(basename $0)
 
 fatal() {
        echo "$SELF: fatal: $1" >&2
-       [ -z $2] && exit 1
+       [ -z $2 ] && exit 1
        exit $2
 }
 
@@ -154,7 +154,8 @@ clone() {
        git config branch."$VCSH_BRANCH".remote origin
        git config branch."$VCSH_BRANCH".merge  refs/heads/"$VCSH_BRANCH"
        if [ $(git ls-remote origin "$VCSH_BRANCH" 2> /dev/null | wc -l ) -lt 1 ]; then
-               info "remote is empty, not merging anything"
+               info "remote is empty, not merging anything.
+  You should add files to your new repository."
                exit
        fi
        git fetch origin "$VCSH_BRANCH"
@@ -213,6 +214,16 @@ enter() {
        hook post-enter
 }
 
+foreach() {
+       hook pre-foreach
+       for VCSH_REPO_NAME in $(list); do
+               GIT_DIR=$VCSH_REPO_D/$VCSH_REPO_NAME.git; export GIT_DIR
+               use
+               "$@"
+       done
+       hook post-foreach
+}
+
 git_dir_exists() {
        [ -d "$GIT_DIR" ] || fatal "no repository found for '$VCSH_REPO_NAME'" 12
 }
@@ -545,6 +556,9 @@ elif [ x"$VCSH_COMMAND" = x'delete' ]           ||
        [ x"$VCSH_COMMAND" = x'rename' ] && { VCSH_REPO_NAME_NEW=$3; export VCSH_REPO_NAME_NEW;
                                              GIT_DIR_NEW=$VCSH_REPO_D/$VCSH_REPO_NAME_NEW.git; export GIT_DIR_NEW; }
        [ x"$VCSH_COMMAND" = x'run' ]    && shift 2
+elif [ x"$VCSH_COMMAND" = x'foreach' ]; then
+       [ -z "$2" ] && fatal "$VCSH_COMMAND: please specify a command" 1
+       shift 1
 elif [ x"$VCSH_COMMAND" = x'commit' ] ||
      [ x"$VCSH_COMMAND" = x'list'   ] ||
      [ x"$VCSH_COMMAND" = x'list-tracked' ] ||