find-package-differences new

1 files changed, 136 insertions, 0 deletions

diff --git a/find-package-differences b/find-package-differences
new file mode 100755
index 00000000..a6c9a964
--- /dev/null
+++ b/find-package-differences
@@ -0,0 +1,136 @@
+#!/bin/bash
+
+if [ $# -eq 2 ]; then
+  cd "${1}"
+  if [ ! -f '.SRCINFO' ] ||
+    [ "$(stat -c%Y PKGBUILD)" -gt "$(stat -c%Y .SRCINFO)" ]; then
+    makepkg --printsrcinfo > .SRCINFO
+  fi
+  sed '
+    /^\S/ b
+    /^\s\+\(arch\|epoch\|pkgver\|pkgrel\) = \S/ b
+    /^$/ b
+    d
+  ' '.SRCINFO' \
+  > "${2}"
+  all=$(
+    sed -n '
+      /^pkgbase = /,/^$/ {
+        /^\s/ p
+      }
+    ' "${2}" \
+    | sed '
+      $! s/$/\\/
+    '
+  )
+  all_noarch=$(
+    printf '%s\n' "${all}" \
+    | grep -v '^\sarch = ' \
+    | sed '
+      $ s/\\$//
+    '
+  )
+  sed -i '
+    /^pkgbase = /,/^$/ d
+    /^pkgname = / {
+      :a
+        N
+        /\n$/ ! ba
+      /\n\sarch = / {
+        a\
+'"${all_noarch}"'
+        b
+      }
+      a\
+'"${all}"'
+    }
+  ' "${2}"
+  sed -i '
+    /^\s*$/d
+  ' "${2}"
+  exit
+fi
+
+if [ $# -ne 0 ]; then
+  >&2 echo 'usage error'
+  >&2 printf '"%s" ' "$@"
+  >&2 printf '\n'
+  exit 1
+fi
+
+tmp_dir=$(mktemp -d)
+trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
+
+find "$(pwd)" -maxdepth 2 -mindepth 2 -name 'PKGBUILD' -type f \
+| sed -n '
+  s@/[^/]\+$@@
+  T
+  s@/[^/]\+$@\0\n'"${tmp_dir%/}"'\0.srcinfo@
+  T
+  p
+' \
+| parallel -j0 -L2 "$0"
+
+print_names() {
+  if [ -z "${pkgname}" ] \
+  || [ -z "${pkgver}" ] \
+  || [ -z "${pkgrel}" ]; then
+    >&2 echo 'error: some variable is missing'
+    exit 1
+  fi
+  for arch in "${archs[@]}"; do
+    printf '%s-%s%s-%s-%s.pkg.tar.xz\n' \
+      "${pkgname}" \
+      "${epoch:+${epoch}:}" \
+      "${pkgver}" \
+      "${pkgrel}" \
+      "${arch}"
+  done
+}
+
+diff -u --color <(
+  find /mnt/archlinuxewe -type f -name '*.pkg.tar.xz' -printf '%f\n' \
+  | sort -u
+) <(
+  find "$tmp_dir" -name '*.srcinfo' -exec cat {} + \
+  | {
+    while read key eq value; do
+      if [ "x${eq}" != 'x=' ]; then
+        >&2 echo "syntax error"
+        exit 1
+      fi
+      case "${key}" in
+        'pkgname')
+          if [ -n "${pkgname}" ]; then
+            print_names
+          fi
+          archs=()
+          pkgname="${value}"
+          unset epoch
+          unset pkgver
+          unset pkgrel
+        ;;
+        'arch')
+          archs+=("${value}")
+        ;;
+        'epoch')
+          epoch="${value}"
+        ;;
+        'pkgver')
+          pkgver="${value}"
+        ;;
+        'pkgrel')
+          pkgrel="${value}"
+        ;;
+        *)
+          >&2 printf 'unknown key "%s"\n' "${key}"
+          exit 1
+        ;;
+      esac
+    done
+    if [ -n "${pkgname}" ]; then
+      print_names
+    fi
+  } \
+  | sort -u
+)