lib-git-svn.sh: Move web-server handling code into separate function

This library file is currently sourced by 57 test files, of which
only four may (optionally) start a web-server in order to access
the svn repo via an http url, rather than a file url.

In addition to isolating the current web-server handling code from
the majority of tests, in a new prepare_httpd function, we also
add some more error checking and reporting code to validate the
apache installation. Only those tests which attempt to start the
web-server, by calling start_httpd, will execute this code.

Note that it is important for start_httpd to return an error
indication, if prepare_httpd fails, so that the failure to use
the web-server, as requested by the user, should not go unnoticed.
(Unless the svnrepo variable is set to an http url at the end of
start_httpd, the remaining tests will use file urls, without
comment.)

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/lib-git-svn.sh b/t/lib-git-svn.sh
index 6a9d9757239f0476422b1a97228927b1ba1ac934..199f22c231b5ac1479929a89cdf988ac7aff4268 100644 (file)
--- a/t/lib-git-svn.sh
+++ b/t/lib-git-svn.sh
@@ -68,8 +68,7 @@ svn_cmd () {
        svn "$orig_svncmd" --config-dir "$svnconf" "$@"
 }
 
-if test -n "$SVN_HTTPD_PORT"
-then
+prepare_httpd () {
        for d in \
                "$SVN_HTTPD_PATH" \
                /usr/sbin/apache2 \
@@ -83,8 +82,8 @@ then
        done
        if test -z "$SVN_HTTPD_PATH"
        then
-               skip_all='skipping git svn tests, Apache not found'
-               test_done
+               echo >&2 '*** error: Apache not found'
+               return 1
        fi
        for d in \
                "$SVN_HTTPD_MODULE_PATH" \
@@ -99,23 +98,16 @@ then
        done
        if test -z "$SVN_HTTPD_MODULE_PATH"
        then
-               skip_all='skipping git svn tests, Apache module dir not found'
-               test_done
-       fi
-fi
-
-start_httpd () {
-       repo_base_path="$1"
-       if test -z "$SVN_HTTPD_PORT"
-       then
-               echo >&2 'SVN_HTTPD_PORT is not defined!'
-               return
+               echo >&2 '*** error: Apache module dir not found'
+               return 1
        fi
-       if test -z "$repo_base_path"
+       if test ! -f "$SVN_HTTPD_MODULE_PATH/mod_dav_svn.so"
        then
-               repo_base_path=svn
+               echo >&2 '*** error: Apache module "mod_dav_svn" not found'
+               return 1
        fi
 
+       repo_base_path="${1-svn}"
        mkdir "$GIT_DIR"/logs
 
        cat > "$GIT_DIR/httpd.conf" <<EOF
@@ -132,12 +124,24 @@ LoadModule dav_svn_module $SVN_HTTPD_MODULE_PATH/mod_dav_svn.so
        SVNPath "$rawsvnrepo"
 </Location>
 EOF
+}
+
+start_httpd () {
+       if test -z "$SVN_HTTPD_PORT"
+       then
+               echo >&2 'SVN_HTTPD_PORT is not defined!'
+               return
+       fi
+
+       prepare_httpd "$1" || return 1
+
        "$SVN_HTTPD_PATH" -f "$GIT_DIR"/httpd.conf -k start
        svnrepo="http://127.0.0.1:$SVN_HTTPD_PORT/$repo_base_path"
 }
 
 stop_httpd () {
        test -z "$SVN_HTTPD_PORT" && return
+       test ! -f "$GIT_DIR/httpd.conf" && return
        "$SVN_HTTPD_PATH" -f "$GIT_DIR"/httpd.conf -k stop
 }