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+====== git cvsimport ==
+The old [[cvs]] repository for Crossfire can be accessed using the git-cvsimport Perl script. \\
+git-cvsimport is usually located in the {prefix}/libexec/git-core/ directory.
+Basic syntax is :
+  git cvsimport $GIT_CVSIMPORT_OPTS -C $module -o $module \
+  -d:pserver:anonymous@crossfire.cvs.sourceforge.net:/cvsroot/crossfire $module
+Where $module is one of the many arch, maps, crossfire (server), client .
+===== Prerequisites ==
+The git-cvsimport script should install with the normal git ''make install'' . \\
+Then it needs cvs installed.
+Besides these above two it needs the separate **cvsps** binary installed. \\
+CVSPS can be found for example at packages.debian.org 's search for filenames containing cvsps.
+The cvsps source is comparatively small at around 60KB with only a simple Makefile. \\
+''make && make install'' should install the cvsps binary by default to /usr/local(/bin) .
+===== Script ==
+Bash script to import and create a git archive for the many cvs modules for Crossfire. \\
+The script assumes to be placed inside the same directory as the directory 'git_cvsimport' . \\
+The folder git_cvsimport will not be created by this script, the user has to do it manually.
+The **cvsps** binary output gets written to a /tmp/gitXXXXXX.cvsps text file. \\
+If a complete /tmp/gitXXXXXX.cvsps could be secured, it can be used to continue downloads \\
+without re-run of the slow rlog part of the cobe by git-cvsimport using the **-P** option.
+<code bash>
+#!/bin/ash
+ERROR=${ERROR:=1}
+ERR=${ERR:-$ERROR} #ERR var already used as /dev/null OR /dev/stderr
+_err(){
+test "$ERROR" || return 0
+echo -e "$0:ERROR:$*"  >&2
+}
+_exit(){
+local RV
+test "$*" || { _err "Usage:_exit EXITCODE MESSAGE"; }
+RV=$1
+[ "${RV//[[:digit:]]/}" ] && { _err "\$1 must be a digit number."; RV=255; } || shift
+echo "$*" >&2
+case ${MY_SELF##*/} in
+ash*|bash*|sh*) return $RV;;
+*) exit $RV;;
+esac
+}
+#GIT_CVSIMPORT_OPTS="-R -v -p Z9,v -P ../gitc45EwN.cvsps"
+GIT_CVSIMPORT_OPTS="-R -v -p Z9,v"
+MAX_RETRIES=10
+MY_SELF=`realpath "$0"`
+MY_DIR=${MY_SELF%/*}
+cd "$MY_DIR" || _exit 3 "Could not change into '$MY_DIR'/ ."
+cd git_cvsimport || _exit 3 "Could not change into folder git_cvsimport/ ."
+#trap "pidof cvsps && kill -2 `pidof cvsps`" INT
+for d in CVSROOT CFJavaEditor arch client iso_arch \
+ alternate_images cfclient_sdl crossfire jxclient \
+ maps maps-bigworld sounds
+do mkdir $VERB -p $d
+done
+MODULES=`ls -1`
+test "$MODULES" || _exit 3 "No cvs modules available."
+# MAIN CODE
+for module in $MODULES
+do
+test -d "$module" || continue
+# don't run rlog on already checked out
+#( and therefore downloaded ) folders
+echo                        #DEBUG
+echo '# ================== #'
+echo $module/               #DEBUG
+echo                        #DEBUG
+ls -1A $module/ | head -n10 #DEBUG
+echo                        #DEBUG
+ls -1A $module/ | tail -n10 #DEBUG
+test "`ls -1A $module/ | wc -l`" -le 1 || continue #if only a .git folder, continue download
+ c=0
+ while :; do
+ git cvsimport $GIT_CVSIMPORT_OPTS -C $module -o $module \
+  -d:pserver:anonymous@crossfire.cvs.sourceforge.net:/cvsroot/crossfire $module
+ RV=$?
+ test $RV = 0 && break 1
+ echo Returnvalue $RV #DEBUG
+ echo '# ================== #'
+ c=$((c+1))
+ test $c -ge ${MAX_RETRIES:-10} && break 1
+ sleep 12
+ if test $RV = 255; then #perl die() always returns 255
+  unset SIZE_GIT
+  SIZE_GIT=`du -s -BKiB $module/.git | awk '{print $1}' | grep -o -E '[0-9]+'`
+  SIZE_GIT=${SIZE_GIT:-501}
+  if test "$SIZE_GIT" -le 500; then
+  rm -rf $module/.git  || break 2
+  fi
+ fi
+ echo "$MY_SELF: Retrying..."
+ done
+sleep 12
+done
+_say_some_code(){
+cat >&1 <<EoI
+/* gitsrc/builtin/rev-parse.c */
+static void die_no_single_rev(int quiet)
+{
+	if (quiet)
+		exit(1);
+	else
+		die("Needed a single revision");
+}
+EoI
+}
+</code>

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