git-wad

commit e3450f7af3f6505c4faaa1e6b8056873b29fbc3a
parent ba0b0b381f4777c0b9f5f89e95c9b2b24fe4c67a
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Sat,  2 Dec 2023 15:39:55 +0100

Add the fetch subcommand

This is the symmetry of the push subcommand. It uses rsync to transfer
data from the remote server defined in a configuration variable. Note
that it does not update the contents of WAD files. This is the task of a
specific command (checkout).

Diffstat:
M
git-wad
 | 
20
++++++++++++++++++++

1 file changed, 20 insertions(+), 0 deletions(-)
diff --git a/git-wad b/git-wad
@@ -39,6 +39,7 @@ synopsis()
 {
   >&2 printf "usage: git-wad init\n"
   >&2 printf "       git-wad push [--all]\n"
+  >&2 printf "       git-wad fetch [--all]\n"
 }
 
 log() # str [, arg...]
@@ -162,6 +163,12 @@ objects_to_push() # [--all]
   "if [ -f \"${GIT_WAD_OBJDIR}/{}\" ]; then echo \"{}\"; fi"
 }
 
+objects_to_fetch() # [--all]
+{
+  wad_objects "$@" | xargs -I {} sh -c \
+  "if [ ! -f \"${GIT_WAD_OBJDIR}/{}\" ]; then echo \"{}\"; fi"
+}
+
 ########################################################################
 # Sub commands
 ########################################################################
@@ -189,6 +196,18 @@ push() # [--all]
   --files-from=- "${GIT_WAD_OBJDIR}" "${GIT_WAD_REMOTE_PUSH}"
 }
 
+fetch() # [--all]
+{
+  if [ -z "${GIT_WAD_REMOTE_FETCH}" ]; then
+    log "Remote undefined, i.e. variable GIT_WAD_REMOTE_FETCH is empty\n"
+    return 1
+  fi
+
+  log "Fetching from %s\n" "${GIT_WAD_REMOTE_FETCH}"
+  objects_to_fetch "$@" | rsync -av --progress --ignore-existing \
+  --files-from=- "${GIT_WAD_REMOTE_FETCH}" "${GIT_WAD_OBJDIR}"
+}
+
 ########################################################################
 # The command
 ########################################################################
@@ -200,6 +219,7 @@ case "${sub_cmd}" in
   "filter-clean")  shift 1; clean "$@" ;;
   "filter-smudge") shift 1; smudge "$@" ;;
   "init") shift 1; init "$@" ;;
+  "fetch") shift 1; fetch "$@" ;;
   "push") shift 1; push "$@" ;;
   *) synopsis; exit 1 ;;
 esac