#!/bin/bash
# Run by 'meson dist' to add pre-generated files that autotools used to
# distribute via EXTRA_DIST.  MESON_PROJECT_DIST_ROOT points to the
# unpacked dist tree that meson is building the tarball from.

set -e

DISTROOT="$MESON_PROJECT_DIST_ROOT"

require_cmd() {
    command -v "$1" >/dev/null 2>&1 || {
        echo "dist-script: ERROR: '$1' not found; install it to create a dist tarball" >&2
        exit 1
    }
}

# --------------------------------------------------------------------------
# Protocol buffers: ipc.proto and ctl.proto
# --------------------------------------------------------------------------

PROTOC=$(command -v protoc 2>/dev/null || command -v protoc-c 2>/dev/null || true)
if [ -z "$PROTOC" ]; then
    echo "dist-script: ERROR: protoc/protoc-c not found; install it to create a dist tarball" >&2
    exit 1
fi
"$PROTOC" --c_out="$DISTROOT/src" \
          --proto_path="$DISTROOT/src" \
          "$DISTROOT/src/ipc.proto"
"$PROTOC" --c_out="$DISTROOT/src" \
          --proto_path="$DISTROOT/src" \
          "$DISTROOT/src/ctl.proto"
"$PROTOC" --c_out="$DISTROOT/src" \
          --proto_path="$DISTROOT/src" \
          "$DISTROOT/src/cfg.proto"

# --------------------------------------------------------------------------
# ASN.1 (GSSAPI / KKDCP)
# --------------------------------------------------------------------------

require_cmd asn1Parser
asn1Parser -o "$DISTROOT/src/kkdcp_asn1_tab.c" \
           "$DISTROOT/src/kkdcp.asn"

# --------------------------------------------------------------------------
# gperf: http-heads.c
# --------------------------------------------------------------------------

require_cmd gperf
gperf --global-table -t "$DISTROOT/src/http-heads.gperf" \
    --output-file "$DISTROOT/src/http-heads.c"

# --------------------------------------------------------------------------
# version.inc
# --------------------------------------------------------------------------

VERSION=$(sed -n "s/^  version: '\\(.*\\)',\$/\\1/p" "$DISTROOT/meson.build" | head -1)
if [ -n "$VERSION" ] && [ -f "$DISTROOT/src/version.inc.in" ]; then
    sed "s/@VERSION@/$VERSION/" "$DISTROOT/src/version.inc.in" \
        > "$DISTROOT/src/version.inc"
fi

# --------------------------------------------------------------------------
# Man pages
# --------------------------------------------------------------------------

require_cmd ronn
for page in ocserv.8 occtl.8 ocpasswd.8; do
    ronn --roff "$DISTROOT/doc/${page}.md" -o "$DISTROOT/doc"
done

# --------------------------------------------------------------------------
# AUTHORS (generated from git history)
# --------------------------------------------------------------------------

require_cmd git
SRCROOT="${MESON_PROJECT_SOURCE_ROOT:-$MESON_SOURCE_ROOT}"
printf "The authors list is autogenerated from the git history; sorted by number of commits\n\n" \
    > "$DISTROOT/AUTHORS"
git -C "$SRCROOT" shortlog -sen | cut -f2 | sed 's/@/ at /g' \
    >> "$DISTROOT/AUTHORS"