This distribution is coming together

1 files changed, 75 insertions, 0 deletions

diff --git a/modules/installScript.nix b/modules/installScript.nix
new file mode 100644
index 0000000..1e5e355
--- /dev/null
+++ b/modules/installScript.nix
@@ -0,0 +1,75 @@
+{ writeShellApplication
+, coreutils
+, util-linux
+, lib
+
+, koboInput
+, koboLabel ? "KOBOeReader"
+, koboManifest ? {}
+, ... }:
+with builtins // lib;
+let
+  manValues = attrValues koboManifest;
+  createMergeTool = local: remote: name: mergeTool: {
+    inherit name;
+    value = mergeTool "${local}/${name}" "${remote}/${name}";
+  };
+  collectMergeTools = local: remote: xs: listToAttrs (concatMap (v: map (name: createMergeTool local remote name v.mergeTool) v.targets) xs);
+  onDevManifest = local: remote: collectMergeTools local remote (filter (v: v.remoteOnly) manValues;
+  manifest = local: remote: collectMergeTools local remote (filter (v: ! v.remoteOnly) manValues);
+
+  execApp = writeShellApplication {
+    name = "kobo-exec";
+    runtimeInputs = [
+      coreutils
+    ];
+    text = ''
+      REMOTE_OR_LOCAL="''${1-}"
+      KOBO_DIR="''${2-}"
+      FILE="''${3-}"
+
+      if [[ "$REMOTE_OR_LOCAL" == "REMOTE" ]]; then
+        ${toShellVar "MANIFEST" (onDevManifest ${koboInput} "$KOBO_DIR")}
+        FILEBASE="''${FILE/#$KOBO_DIR}"
+      else
+        ${toShellVar "MANIFEST" (manifest ${koboInput} "$KOBO_DIR")}
+        FILEBASE="''${FILE/#${koboInput}}"
+      fi
+
+      ACTION="''${MANIFEST["$FILEBASE"]}"
+
+      if [[ -n "$ACTION" ]]; then
+        eval "$ACTION"
+      elif [[ "$REMOTE_OR_LOCAL" == "LOCAL" ]]; then
+        if [[ -d "$FILE" ]]; then
+          mkdir -p "$KOBO_DIR/$FILEBASE"
+        else
+          cp -v "$FILE" "$KOBO_DIR/$FILEBASE"
+        fi
+      fi
+    '';
+  };
+in writeShellApplication {
+  name = "KoboInstaller";
+  runtimeInputs = [
+    coreutils
+    util-linux
+  ];
+  text = ''
+    KOBO_MOUNTPOINT="$(findmnt -nlo TARGET LABEL="${koboLabel}")"
+    if [[ -z "$KOBO_MOUNTPOINT" ]]; then
+      echo "Couldn't find a Kobo eReader volume with label ${koboLabel}. Are you sure one is actually mounted?"
+      exit 255
+    fi
+
+    KOBO_DIR="$KOBO_MOUNTPOINT/.kobo"
+    if [[ ! -d "$KOBO_DIR" ]]; then
+      echo "It doesn't seem like $KOBO_MOUNTPOINT actually points to a Kobo eReader since it doesn't contain a .kobo directory . . . "
+      exit 255
+    fi
+
+    find "$KOBO_DIR/" -not -path "$KOBO_DIR/" -exec ${execApp}/bin/kobo-exec "REMOTE" "$KOBO_DIR" {} \;
+
+    find "${koboInput}/" -not -path "${koboInput}/" -exec ${execApp}/bin/kobo-exec "LOCAL" "$KOBO_DIR" {} \;
+  '';
+}