orchestrate async fetching

1 files changed, 65 insertions, 0 deletions

diff --git a/git-base.sh b/git-base.sh
new file mode 100755
index 0000000..d0f349d
--- /dev/null
+++ b/git-base.sh
@@ -0,0 +1,65 @@
+set -e
+
+debug_print() {
+  debug=$1
+  message=$2
+  if [[ $debug == "debug" ]]; then
+    echo $message
+  fi
+}
+
+dot_git() {
+  if [ -d .git ]; then
+    echo ".git"
+  else
+    echo "$(git rev-parse --git-dir)"
+  fi
+}
+
+git_root() {
+  if [ -d .git ]; then
+    echo "."
+  else
+    echo "$(git rev-parse --show-toplevel)"
+  fi
+}
+
+record_timestamp() {
+  touch "$(dot_git)/lastupdatetime"
+}
+
+timestamp() {
+  echo "$(stat -f%m "$(dot_git)/lastupdatetime")"
+}
+
+time_now() {
+  echo "$(date +%s)"
+}
+
+time_to_update() {
+  timesincelastupdate="$(($(time_now) - $(timestamp)))"
+  fiveminutes="$((5 * 60))"
+  if (( "$timesincelastupdate" > "$5minutes" )); then
+    # time to update return 0 (which is false)
+    return 0
+  else
+    # not time to update return 1 (which is true)
+    return 1
+  fi
+}
+
+fetch_async() {
+  debug="$1"
+  if time_to_update; then
+    debug_print $debug "Starting fetch"
+    fetch $debug &
+  else
+    debug_print $debug "Didn't fetch"
+  fi
+}
+
+fetch() {
+  debug="$1"
+  git fetch
+  debug_print $debug "Finished fetch"
+}