vcsh: Add comments

[code/vcsh.git] / vcsh

diff --git a/vcsh b/vcsh
index 60fcd99f17ee0b0d0ef5523567daf5a3cb34d1ed..d6ee234a2ebd26e4ca10360f44701f304eefb1e4 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -24,7 +24,7 @@ basename() {
 }
 
 SELF=$(basename $0)
-VERSION='1.20130829'
+VERSION='1.20130909'
 
 fatal() {
        echo "$SELF: fatal: $1" >&2
@@ -81,6 +81,15 @@ fi
 [ -z "$VCSH_HOOK_D" ]                 && VCSH_HOOK_D="$XDG_CONFIG_HOME/vcsh/hooks-enabled"
 [ -z "$VCSH_BASE" ]                   && VCSH_BASE="$HOME"
 [ -z "$VCSH_GITIGNORE" ]              && VCSH_GITIGNORE='exact'
+[ -z "$VCSH_WORKTREE" ]               && VCSH_WORKTREE='absolute'
+
+if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xnone' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
+       fatal "'\$VCSH_GITIGNORE' must equal 'exact', 'none', or 'recursive'" 1
+fi
+
+if [ ! "x$VCSH_WORKTREE" = 'xabsolute' ] && [ ! "x$VCSH_WORKTREE" = 'xrelative' ]; then
+       fatal "'\$VCSH_WORKTREE' must equal 'absolute', or 'relative'" 1
+fi
 
 
 help() {
@@ -313,8 +322,13 @@ upgrade() {
        # because otherwise Git complains "fatal: core.bare and core.worktree
        # do not make sense"
        git config core.bare false
-       # in core.worktree, keep a relative reference to the base directory
-       git config core.worktree $(cd $GIT_DIR && GIT_WORK_TREE="$VCSH_BASE" git rev-parse --show-cdup)
+       # core.worktree may be absolute or relative to $GIT_DIR, depending on
+       # user preference
+       if [ ! "x$VCSH_WORKTREE" = 'xabsolute' ]; then
+               git config core.worktree $(cd $GIT_DIR && GIT_WORK_TREE="$VCSH_BASE" git rev-parse --show-cdup)
+       elif [ ! "x$VCSH_WORKTREE" = 'xrelative' ]; then
+               git config core.worktree "$VCSH_BASE"
+       fi
        [ ! "x$VCSH_GITIGNORE" = 'xnone' ] && git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
        git config vcsh.vcsh         'true'
        use
@@ -351,7 +365,11 @@ write_gitignore() {
                        file="$new"
                done;
        done | sort -u)
-       tempfile=$(mktemp) || fatal "could not create tempfile" 51
+
+       # Contrary to GNU mktemp, mktemp on BSD/OSX requires a template for temp files
+       # Use the template GNU mktemo defaults to
+       tempfile=$(mktemp tmp.XXXXXXXXXX) || fatal "could not create tempfile" 51
+
        echo '*' > "$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
@@ -372,10 +390,6 @@ write_gitignore() {
                fatal "could not move '$tempfile' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME'" 53
 }
 
-if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xnone' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
-       fatal "'\$VCSH_GITIGNORE' must equal 'exact', 'none', or 'recursive'" 1
-fi
-
 if [ "$1" = 'clone' ]; then
        [ -z "$2" ] && fatal "$1: please specify a remote" 1
        export VCSH_COMMAND="$1"