build: Add the 'g' wrapper to the bootstrap repo.

This is the first step in removing the need for the 'build' repository, and
its 'rawbuild' hack.

1 files changed, 248 insertions, 0 deletions

diff --git a/g b/g
new file mode 100755
index 000000000000..ce43f7208291
--- /dev/null
+++ b/g
@@ -0,0 +1,248 @@
+#!/usr/bin/env bash
+#
+# Wrapper for git to handle more subdirs at the same time
+#
+
+# no params, no action
+if [ "$#" -eq "0" ] ; then
+    git
+    echo
+    echo "Additional options available only in this 'g' wrapper:"
+    echo
+    echo "Usage: g [options] [git commands]"
+    echo "   -f         Force - act on all the repos, not only the changed ones"
+    echo "   -s         Silent - do not report the repo names."
+    exit $?
+fi
+
+CLONEDIR=`perl -e 'use Cwd "abs_path"; print abs_path(shift);' $0 | sed -e ' s/\/g$/\/clone/'`
+if [ ! -e ${CLONEDIR} ]; then mkdir -p $CLONEDIR; fi
+RAWBUILDDIR=`perl -e 'use Cwd "abs_path"; print abs_path(shift);' $0 | sed -e ' s/\/g$//'`
+if [ ! -e ${RAWBUILDDIR} ]; then mkdir -p $RAWBUILDDIR; fi
+
+# extra params for some commands, like log
+EXTRA=
+COMMAND="$1"
+PAGER=
+RELATIVIZE=1
+PUSH_ALL=
+ALLOW_EMPTY=
+KEEP_GOING=0
+REPORT_REPOS=1
+
+while [ "${COMMAND:0:1}" = "-" ] ; do
+    case "$COMMAND" in
+        -f) KEEP_GOING=1
+            ;;
+        -s) REPORT_REPOS=0
+            ;;
+    esac
+    shift
+    COMMAND="$1"
+done
+
+case "$COMMAND" in
+    apply)
+        EXTRA="-p0 --stat --apply --index --ignore-space-change --whitespace=error"
+        RELATIVIZE=0
+        ;;
+    diff)
+        PAGER='--no-pager'
+        REPORT_REPOS=0
+        ;;
+    log)
+        if [ "$#" = "1" ] ; then
+            EXTRA='-1'
+        fi
+        PAGER='--no-pager'
+        ;;
+    push)
+        if [ "$#" != "1" ] ; then
+            PUSH_ALL=1
+        fi
+        ;;
+esac
+
+# absolutize the parameters first
+unset FILES
+FILESNUM=0
+while shift ; do
+    PARAM="$1"
+    if [ -z "$PARAM" ] ; then
+        continue
+    elif [ "${PARAM:0:1}" = "-" ] ; then
+        if [ \( "$COMMAND" = "checkout" -a "$PARAM" = "-b" \) -o \
+             \( "$COMMAND" = "clone"    -a "$PARAM" = "--reference" \) -o \
+             \( "$COMMAND" = "commit"   -a "$PARAM" = "-m" \) -o \
+             \( "$COMMAND" = "commit"   -a "$PARAM" = "-am" \) -o \
+             \( "$COMMAND" = "tag"      -a "$PARAM" = "-m" \) ]
+        then
+            # params that take an argument
+            FILES[$FILESNUM]="$PARAM"
+            FILESNUM=$(($FILESNUM+1))
+            shift
+            FILES[$FILESNUM]="$1"
+            FILESNUM=$(($FILESNUM+1))
+        else
+            [ "$COMMAND" = "commit" -a "$PARAM" = "--allow-empty" ] && ALLOW_EMPTY=1
+
+            FILES[$FILESNUM]="$PARAM"
+            FILESNUM=$(($FILESNUM+1))
+        fi
+    else
+        if [ "$COMMAND" = "apply" ] ; then
+            grep -qs $'^+ *\t' "$PARAM" && {
+                echo "Patch '$PARAM' introduces tabs in indentation, aborting."
+                echo
+                echo "Please fix the patch (something like s/^\(+ *\)\t/\1    /) and try again."
+                echo
+                exit 1
+            }
+        fi
+
+        # make the paths absolute
+        FILES[$FILESNUM]=`perl -e 'use Cwd "abs_path"; print abs_path(shift);' "$PARAM"`
+        if [ -z "${FILES[$FILESNUM]}" -o ! -e "${FILES[$FILESNUM]}" ] ; then
+            # it is probably not a file, but a tag name, or something
+            FILES[$FILESNUM]="$PARAM"
+        fi
+        FILESNUM=$(($FILESNUM+1))
+    fi
+done
+
+# do it!
+cd "$CLONEDIR"
+DIRS=". `ls`"
+if [ "$COMMAND" = "clone" ] ; then
+    DIRS="artwork base calc components extensions extras filters
+          help impress libs-core libs-extern libs-extern-sys libs-gui
+          postprocess sdk testing ure writer"
+fi
+for DIR in $DIRS ; do
+    if [ \( -d "$DIR" -a -d "$DIR"/.git \) -o \( "$COMMAND" = "clone" \) ] ; then
+        (
+            # executed in a subshell
+            [ "$COMMAND" != "clone" ] && cd $DIR
+
+            # relativize the absolutized params again if we want to operate
+            # only on the files belonging to this exact repo
+            if [ "$RELATIVIZE" = "1" -a -n "$FILES" ] ; then
+                FILESNUM=0
+                INSERTNUM=0
+                PWD=`pwd`
+                PWDLEN=`pwd | wc -c`
+                for I in "${FILES[@]}" ; do
+                    I="${I//@REPO@/${DIR}}"
+                    unset FILES[$FILESNUM]
+                    FILESNUM=$(($FILESNUM+1))
+                    # filter out files that don't belong to this repo
+                    if [ \( "${I:0:1}" = "/" \) -a \( "$COMMAND" != "clone" \) ] ; then
+                        if [ "${I:0:$PWDLEN}" = "$PWD/" ] ; then
+                            FILES[$INSERTNUM]="${I:$PWDLEN}"
+                            INSERTNUM=$(($INSERTNUM+1))
+                        fi
+                    else
+                        FILES[$INSERTNUM]="$I"
+                        INSERTNUM=$(($INSERTNUM+1))
+                    fi
+                done
+                [ "$INSERTNUM" = "0" ] && exit 0
+            fi
+
+            # some extra params
+            case "$COMMAND" in
+                apply)
+                    for I in * ; do
+                        if [ -d "$I" ] ; then
+                            EXTRA="$EXTRA --include=$I/*"
+                        else
+                            EXTRA="$EXTRA --include=$I"
+                        fi
+                    done
+                    ;;
+                commit)
+                    if [ "$ALLOW_EMPTY" != "1" ] ; then
+                        [ -z "`git diff-index --name-only HEAD --`" ] && exit 0
+                    fi
+                    ;;
+                push)
+                    if [ "$PUSH_ALL" != "1" ] ; then
+                        [ -n "`git rev-list origin..HEAD`" ] || exit 0
+                    fi
+                    ;;
+                status)
+                    LOCALCOMMITS="`git rev-list origin..HEAD`"
+                    if [ -z "$LOCALCOMMITS" ] ; then
+                        [ -z "`git diff-index --name-only HEAD --`" ] && exit 0
+                    fi
+                    ;;
+                clone)
+                    if [ -z "$FILES" ]; then
+                        EXTRA="$(git config remote.origin.url|sed 's|/[^/]\+$||')/${DIR}"
+                    fi
+                    ;;
+            esac
+
+            [ "$REPORT_REPOS" = "1" ] && echo "===== $DIR ====="
+
+            # check for changes
+            HEADREF=`git show-ref --head HEAD`
+
+            # do it!
+            git $PAGER "$COMMAND" $EXTRA "${FILES[@]}"
+            RETURN=$?
+
+            # now we can change the dir in case of clone as well
+            [ "$COMMAND" = "clone" ] && cd $DIR
+
+            # update stamp if the repo changed
+            NEWHEADREF=`git show-ref --head HEAD`
+            [ "$HEADREF" != "$NEWHEADREF" ] && touch $CLONEDIR/repos_changed
+
+            case "$COMMAND" in
+                pull|clone)
+                    # update links
+                    for link in `ls` ; do
+                        if [ ! -e "$RAWBUILDDIR/$link" ] ; then
+                            echo "Creating missing link $link"
+                            ln -s "$CLONEDIR/$DIR/$link" "$RAWBUILDDIR/$link"
+                        fi
+                    done
+                    ;;
+                status)
+                    # git status returns error in some versions, clear that
+                    RETURN=0
+                    ;;
+                grep)
+                    # git grep return an 'error' if nothing is found
+                    # still we should continue grepping the other repos
+                    RETURN=0
+                    ;;
+            esac
+            if [  "$KEEP_GOING" = "1" ] ; then
+                RETURN=0
+            fi
+
+            exit $RETURN
+        ) || exit $?
+    fi
+done
+
+# Cleanup the broken links
+if [ "$COMMAND" = "pull" ] ; then
+    for link in `ls $RAWBUILDDIR` ; do
+        if [ -h "$RAWBUILDDIR/$link" -a ! -e "$RAWBUILDDIR/$link" ]; then
+            echo "Removing broken link $link"
+            rm $RAWBUILDDIR/$link
+        fi
+    done
+fi
+
+# warn
+if [ "$COMMAND" = "apply" ] ; then
+    echo
+    echo "Don't forget to check the status & commit now ;-)"
+    echo
+fi
+
+# vi:set shiftwidth=4 expandtab: