initial generic script for rust crates tarball creation

[packages/rpm-build-tools.git] / rust-crates.sh

diff --git a/rust-crates.sh b/rust-crates.sh
new file mode 100755 (executable)
index 0000000..f5c5a32
--- /dev/null
+++ b/rust-crates.sh
@@ -0,0 +1,135 @@
+#!/bin/sh
+
+usage() {
+  echo "Usage: $0 [-p <package_name>] [-o <crates_file>] [-f] [-v] [-h] [<pkg_name>.spec]"
+  echo
+  echo "\t-p <package_name>\tforce cargo <package_name> for version override instead of automatic detection"
+  echo "\t-o <crates_file>\tforce output file name instead of automatically determined name"
+  echo "\t-f\t\t\toverwrite creates file if it already exists"
+  echo "\t-v\t\t\tset cargo package version to @@VERSION@@ for easier crates tarball reuse"
+  echo "\t-h\t\t\tprint this help"
+  echo
+  echo "\t<pkg_name>.spec is optional and defaults to package found in current working directory"
+}
+
+for cmd in bsdtar rpm-specdump cargo perl awk; do
+  if ! command -v $cmd > /dev/null 2> /dev/null; then
+    not_installed="$not_installed$cmd "
+  fi
+done
+
+if [ -n "$not_installed" ]; then
+  echo "ERROR: required commands not found: $not_installed" >&2
+  exit 1
+fi
+
+while getopts p:o:fvh OPTNAME; do
+  case $OPTNAME in
+    p)
+      force_cargo_package="$OPTARG"
+      ;;
+    f)
+      overwrite=1
+      ;;
+    o)
+      crates_file="$OPTARG"
+      ;;
+    v)
+      version_override=1
+      ;;
+    h)
+      usage
+      exit 0
+      ;;
+    ?)
+      echo "ERROR: unknown option '-$OPTNAME'" >&2
+      usage
+      exit 1
+      ;;
+  esac
+done
+
+shift $(($OPTIND - 1))
+
+rpm_topdir=$(rpm -E %{_topdir})
+
+if [ -n "$1" ]; then
+  pkg_name=$(basename "$1")
+  pkg_name=${pkg_name%.spec}
+  pkg_dir="$rpm_topdir/$pkg_name"
+  if [ ! -f "$pkg_dir/$pkg_name.spec" ]; then
+    echo "ERROR: no package $pkg_name found" >&2
+    exit 1
+  fi
+else
+  pkg_dir="$(pwd)"
+  pkg_name=$(basename "$pkg_dir")
+  if [ "$(readlink -f "$rpm_topdir")" != "$(readlink -f "$(dirname "$pkg_dir")")" ] || [ ! -f "$pkg_dir/$pkg_name.spec" ]; then
+    echo "ERROR: failed to determine package name" >&2
+    exit 1
+  fi
+fi
+
+spec_dump=$(rpm-specdump "$pkg_dir/$pkg_name.spec")
+pkg_version=$(echo "$spec_dump" | grep PACKAGE_VERSION | cut -f3 -d' ')
+pkg_src=$(basename $(echo "$spec_dump" | grep SOURCEURL0 | cut -f3- -d' '))
+if [ -z "$crates_file" ]; then
+  crates_file="$pkg_name-crates-$pkg_version.tar.xz"
+fi
+
+if [ -e "$pkg_dir/$crates_file" ] && [ -z "$overwrite" ]; then
+  echo "ERROR: crates file $crates_file already exists" >&2
+  exit 1
+fi
+
+if [ ! -f "$pkg_dir/$pkg_src" ]; then
+  echo "ERROR: source file $pkg_src not found" >&2
+  exit 1
+fi
+
+tmpdir=$(mktemp -d)
+
+rm_tmpdir() {
+  if [ -n "$tmpdir" -a -d "$tmpdir" ]; then
+    rm -rf "$tmpdir"
+  fi
+}
+
+trap rm_tmpdir EXIT INT HUP
+
+cd "$tmpdir"
+bsdtar xf "$pkg_dir/$pkg_src"
+src_dir=$(ls)
+if [ $(echo "$src_dir" | wc -l) -ne 1 ]; then
+  echo "ERROR: unexpected source structure:\n$src_dir" >&2
+  exit 1
+fi
+
+cd "$src_dir"
+cargo vendor
+if [ $? -ne 0 ]; then
+  echo "ERROR: cargo vendor failed" >&2
+  exit 1
+fi
+
+if [ -n "$version_override" ]; then
+  if [ -n "$force_cargo_package" ]; then
+    cargo_package=$force_cargo_package
+  else
+    cargo_package=$(awk '/^[[:space:]]*\[package\]/ { in_package=1; } /^[[:space:]]*name[[:space:]]*=/ { if (in_package) { gsub("^[[:space:]]*name[[:space:]]*=[[:space:]]*","");gsub("(^\"|\"$)","");print; exit; } }' Cargo.toml)
+  fi
+
+  if [ -z "$cargo_package" ]; then
+    echo "ERROR: failed to determine cargo package name" >&2
+    exit 1
+  fi
+
+  # replace cargo package version with @@VERSION@@
+  perl -pi -e 'BEGIN { undef $/;} s/(\[\[package\]\]\nname\s*=\s*"'"$cargo_package"'"\nversion\s*=\s*")[^"]+/$1\@\@VERSION\@\@/m' Cargo.lock
+fi
+
+cd ..
+tar cJf "$pkg_dir/$crates_file" "$src_dir"/{Cargo.lock,vendor}
+echo "Created $pkg_dir/$crates_file"
+
+# vim: expandtab shiftwidth=2 tabstop=2