Anchor ignore lines

The lines written to the gitignore file by write-gitignore were not
anchored. This means that a line like

  !.zsh

might cause not only ~/.zsh to be ignored, but also ~/TODO/.zsh, which
is potentially a problem.

This patch simply prepends a '/' to each entry in the gitignore file,
thereby anchoring the entry to the repository root.

Note that the initial '*' must not be anchored, else files in
subdirectories wouldn't be ignored.

Signed-off-by: martin f. krafft <madduck@madduck.net>

diff --git a/vcsh b/vcsh
index 599d1187a899a7513742010da9b0d67c4e0b1ad6..b03df7aaca40292c9a15c8e3a4565ffbbc5ae80c 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -258,9 +258,9 @@ write_gitignore() {
        tempfile=$(mktemp) || fatal "could not create tempfile" 51
        echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
        for gitignore in $gitignores; do
-               echo "$gitignore" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
+               echo "$gitignore" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
                if [ x$VCSH_GITIGNORE = x'recursive' ] && [ -d "$gitignore" ]; then
-                       { echo "$gitignore/*" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
+                       { echo "$gitignore/*" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
                fi
        done
        if diff -N "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" > /dev/null; then