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Fix version processing on BSD systems.
authorKevin Lyda <kevin@ie.suberic.net>
Tue, 29 Aug 2017 07:12:44 +0000 (08:12 +0100)
committerKevin Lyda <kevin@ie.suberic.net>
Tue, 29 Aug 2017 07:12:44 +0000 (08:12 +0100)
BSD systems ship with the original sed; lacking a host of GNU
extensions. However both GNU sed and POSIX sed support the -E flag
for extended regular expressions which are close to the change this
is replacing.

See the descriptions of extended REs in IEEE Std 1003.2 (aka POSIX.2)
or re_format(7) on BSD systems. What matters for this is that the
+ operator works and that it and the grouping operators no longer
need to be escaped.

vcsh

diff --git a/vcsh b/vcsh
index f06f5b456985dda6269b3541195b0e2c2c34fe6a..d1d26eddcc44809ae3cfa82c448e68bc23c2082d 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -166,7 +166,7 @@ clone() {
   You should add files to your new repository."
                exit
        fi
   You should add files to your new repository."
                exit
        fi
-       GIT_VERSION_MAJOR=$(git --version | sed -n 's/.* \([0-9]\+\)\..*/\1/p' )
+       GIT_VERSION_MAJOR=$(git --version | sed -E -n 's/.* ([0-9]+)\..*/\1/p' )
        if [ 1 -lt "$GIT_VERSION_MAJOR" ];then
                git fetch origin "$VCSH_BRANCH"
        else
        if [ 1 -lt "$GIT_VERSION_MAJOR" ];then
                git fetch origin "$VCSH_BRANCH"
        else
@@ -482,8 +482,8 @@ write_gitignore() {
        use
        cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
        local GIT_VERSION="$(git --version)"
        use
        cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
        local GIT_VERSION="$(git --version)"
-       local GIT_VERSION_MAJOR=$(echo $GIT_VERSION | sed -n 's/.* \([0-9]\+\)\..*/\1/p')
-       local GIT_VERSION_MINOR=$(echo $GIT_VERSION | sed -n 's/.* \([0-9]\+\)\.\([0-9]\+\)\..*/\2/p')
+       local GIT_VERSION_MAJOR=$(echo $GIT_VERSION | sed -E -n 's/.* ([0-9]+)\..*/\1/p')
+       local GIT_VERSION_MINOR=$(echo $GIT_VERSION | sed -E -n 's/.* ([0-9]+)\.([0-9]+)\..*/\2/p')
        OLDIFS=$IFS
        IFS=$(printf '\n\t')
        gitignores=$(for file in $(git ls-files); do
        OLDIFS=$IFS
        IFS=$(printf '\n\t')
        gitignores=$(for file in $(git ls-files); do