Perform incremental updates (via doas)

libexec/portzap/git-changed-files

@@ -0,0 +1,14 @@
+#!/bin/sh -e
+
+##
+# variables
+gitdir=$1
+commit=$2
+
+##
+# main
+cd ${gitdir}
+add=$(git diff --name-only --diff-filter=A ${commit} HEAD)
+mod=$(git diff --name-only --diff-filter=M ${commit} HEAD)
+echo ${add}
+echo ${mod}

libexec/portzap/git-removed-files

@@ -0,0 +1,11 @@
+#!/bin/sh -e
+
+##
+# variables
+gitdir=$1
+commit=$2
+
+##
+# main
+cd ${gitdir}
+git diff --name-only --diff-filter=D ${commit} HEAD

libexec/portzap/git-rev

@@ -0,0 +1,10 @@
+#!/bin/sh -e
+
+##
+# variables
+gitdir=$1
+
+##
+# main
+cd ${gitdir}
+git rev-parse HEAD

libexec/portzap/portzap-install

@@ -4,16 +4,47 @@
 # variables
 gitdir=$1
 installdir=$2
-excludes=".git .gitignore .hooks .arcconfig"
+revfile=$3
+artifacts=".git .gitignore .hooks .arcconfig"
+libexec=/usr/local/libexec/portzap
 
 ##
-# main
-cd "${gitdir}"
+# functions
+perform_update()
+{
+    rev=$(cat "${revfile}")
+    add=$(doas -u _portzap ${libexec}/git-changed-files "${gitdir}" "${rev}")
+    del=$(doas -u _portzap ${libexec}/git-removed-files "${gitdir}" "${rev}")
+    set -x
+    for file in ${del}; do
+        target="${installdir}/${file}"
+        rm "${target}"
+    done
+    for file in ${add}; do
+        target="${installdir}/${file}"
+        cp "${file}" "${target}"
+        chown root:_portzap "${target}"
+        chmod u=rw,g=rw,o= "${target}"
+    done
+}
+
+perform_install()
+{
     find -s . -maxdepth 1 \
         -exec cp -Rfv {} "${installdir}" \; \
         -exec chown -R root:_portzap "${installdir}/{}" \; \
         -exec chmod -R u=rwX,g=rwX,o= "${installdir}/{}" \;
-cd "${installdir}"
-for exclude in ${excludes}; do
-    rm -rf "${exclude}"
+    for path in ${artifacts}; do
+        rm -rf "${installdir}/${path}"
     done
+}
+
+##
+# main
+cd "${gitdir}"
+if [ -e "${revfile}" ]; then
+    perform_update
+else
+    perform_install
+fi
+echo $(doas -u _portzap ${libexec}/git-rev ${gitdir}) > ${revfile}

share/portzap/doas.conf

@@ -1,2 +1,7 @@
+##
+# portzap
 permit nopass :_portzap as _portzap cmd /usr/local/libexec/portzap/portzap-clone
 permit nopass :_portzap as _portzap cmd /usr/local/libexec/portzap/portzap-pull
+permit nopass root as _portzap cmd /usr/local/libexec/portzap/git-changed-files
+permit nopass root as _portzap cmd /usr/local/libexec/portzap/git-removed-files
+permit nopass root as _portzap cmd /usr/local/libexec/portzap/git-rev