codec: add local script used by author to pre-generate files, and run build and tests

Fixes #251

codec/build.sh

@@ -0,0 +1,219 @@
+#!/bin/bash
+
+# Run all the different permutations of all the tests and other things
+# This helps ensure that nothing gets broken.
+
+_tests() {
+    local gover=$( go version | cut -f 3 -d ' ' )
+    # note that codecgen requires fastpath, so you cannot do "codecgen notfastpath"
+    local a=( "" "safe"  "notfastpath" "notfastpath safe" "codecgen" "codecgen safe" )
+    for i in "${a[@]}"
+    do
+        echo ">>>> TAGS: $i"
+        local i2=${i:-default}
+        case $gover in
+            go1.[0-6]*) go vet -printfuncs "errorf" "$@" &&
+                              go test ${zargs[*]} -vet off -tags "$i" "$@" ;;
+            *) go vet -printfuncs "errorf" "$@" &&
+                     go test ${zargs[*]} -vet off -tags "alltests $i" -run "Suite" -coverprofile "${i2// /-}.cov.out" "$@" ;;
+        esac
+        if [[ "$?" != 0 ]]; then return 1; fi 
+    done
+    echo "++++++++ TEST SUITES ALL PASSED ++++++++"
+}
+
+
+# is a generation needed?
+_ng() {
+    local a="$1"
+    if [[ ! -e "$a" ]]; then echo 1; return; fi 
+    for i in `ls -1 *.go.tmpl gen.go values_test.go`
+    do
+        if [[ "$a" -ot "$i" ]]; then echo 1; return; fi 
+    done
+}
+
+_prependbt() {
+    cat > ${2} <<EOF
+// +build generated
+
+EOF
+    cat ${1} >> ${2}
+    rm -f ${1}
+}
+
+# _build generates fast-path.go and gen-helper.go.
+_build() {
+    if ! [[ "${zforce}" || $(_ng "fast-path.generated.go") || $(_ng "gen-helper.generated.go") || $(_ng "gen.generated.go") ]]; then return 0; fi 
+    
+    if [ "${zbak}" ]; then
+        _zts=`date '+%m%d%Y_%H%M%S'`
+        _gg=".generated.go"
+        [ -e "gen-helper${_gg}" ] && mv gen-helper${_gg} gen-helper${_gg}__${_zts}.bak
+        [ -e "fast-path${_gg}" ] && mv fast-path${_gg} fast-path${_gg}__${_zts}.bak
+        [ -e "gen${_gg}" ] && mv gen${_gg} gen${_gg}__${_zts}.bak
+    fi 
+    rm -f gen-helper.generated.go fast-path.generated.go gen.generated.go \
+       *safe.generated.go *_generated_test.go *.generated_ffjson_expose.go 
+
+    cat > gen.generated.go <<EOF
+// +build codecgen.exec
+
+// Copyright (c) 2012-2015 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+package codec
+
+// DO NOT EDIT. THIS FILE IS AUTO-GENERATED FROM gen-dec-(map|array).go.tmpl
+
+const genDecMapTmpl = \`
+EOF
+    cat >> gen.generated.go < gen-dec-map.go.tmpl
+    cat >> gen.generated.go <<EOF
+\`
+
+const genDecListTmpl = \`
+EOF
+    cat >> gen.generated.go < gen-dec-array.go.tmpl
+    cat >> gen.generated.go <<EOF
+\`
+
+const genEncChanTmpl = \`
+EOF
+    cat >> gen.generated.go < gen-enc-chan.go.tmpl
+    cat >> gen.generated.go <<EOF
+\`
+EOF
+    cat > gen-from-tmpl.codec.generated.go <<EOF
+package codec 
+import "io"
+func GenInternalGoFile(r io.Reader, w io.Writer) error {
+return genInternalGoFile(r, w)
+}
+EOF
+    cat > gen-from-tmpl.generated.go <<EOF
+//+build ignore
+
+package main
+
+import "${zpkg}"
+import "os"
+
+func run(fnameIn, fnameOut string) {
+println("____ " + fnameIn + " --> " + fnameOut + " ______")
+fin, err := os.Open(fnameIn)
+if err != nil { panic(err) }
+defer fin.Close()
+fout, err := os.Create(fnameOut)
+if err != nil { panic(err) }
+defer fout.Close()
+err = codec.GenInternalGoFile(fin, fout)
+if err != nil { panic(err) }
+}
+
+func main() {
+run("fast-path.go.tmpl", "fast-path.generated.go")
+run("gen-helper.go.tmpl", "gen-helper.generated.go")
+run("mammoth-test.go.tmpl", "mammoth_generated_test.go")
+run("mammoth2-test.go.tmpl", "mammoth2_generated_test.go")
+}
+EOF
+
+    # explicitly return 0 if this passes, else return 1
+    go run -tags "notfastpath safe codecgen.exec" gen-from-tmpl.generated.go &&
+        rm -f gen-from-tmpl.*generated.go &&
+        return 0
+    return 1
+}
+
+_codegenerators() {
+    if ! [[ $zforce ||
+                $(_ng "values_codecgen${zsfx}") ]]; then return 0; fi
+
+    # Note: ensure you run the codecgen for this codebase  (using $zgobase/bin/codecgen)
+    local c9="codecgen-scratch.go"
+    true &&
+        echo "codecgen ... " &&
+        $zgobase/bin/codecgen -rt codecgen -t 'codecgen generated' -o values_codecgen${zsfx} -d 19780 $zfin $zfin2 &&
+        cp mammoth2_generated_test.go $c9 &&
+        $zgobase/bin/codecgen -t '!notfastpath' -o mammoth2_codecgen${zsfx} -d 19781 mammoth2_generated_test.go &&
+        rm -f $c9 &&
+        echo "generators done!" 
+}
+
+_prebuild() {
+    echo "prebuild: zforce: $zforce , zexternal: $zexternal"
+    zmydir=`pwd`
+    zfin="test_values.generated.go"
+    zfin2="test_values_flex.generated.go"
+    zsfx="_generated_test.go"
+    # zpkg="ugorji.net/codec"
+    zpkg=${zmydir##*/src/}
+    zgobase=${zmydir%%/src/*}
+    # rm -f *_generated_test.go 
+    rm -f codecgen-*.go &&
+        _build &&
+        cp $zmydir/values_test.go $zmydir/$zfin &&
+        cp $zmydir/values_flex_test.go $zmydir/$zfin2 &&
+        _codegenerators &&
+        if [[ "$(type -t _codegenerators_external )" = "function" ]]; then _codegenerators_external ; fi &&
+        if [[ $zforce ]]; then go install ${zargs[*]} .; fi &&
+        echo "prebuild done successfully"
+    rm -f $zmydir/$zfin $zmydir/$zfin2 
+}
+
+_make() {
+    zforce=1
+    zexternal=1
+    ( cd codecgen && go install ${zargs[*]} . ) && _prebuild && go install ${zargs[*]} .
+    unset zforce zexternal
+}
+
+_clean() {
+    rm -f gen-from-tmpl.*generated.go \
+       codecgen-*.go \
+       test_values.generated.go test_values_flex.generated.go
+}
+
+_usage() {
+    cat <<EOF
+primary usage: $0 
+    -[tmpfxld] for [tests, make, prebuild (force) (external), mid-stack inlining, race detector]
+EOF
+    if [[ "$(type -t _usage_run)" = "function" ]]; then _usage_run ; fi
+}
+
+_main() {
+    if [[ -z "$1" ]]; then _usage; return 1; fi
+    local x
+    unset zforce zexternal
+    zargs=()
+    while getopts ":ctbqmrgupfxlzd" flag
+    do
+        case "x$flag" in
+            'xf') zforce=1 ;;
+            'xx') zexternal=1 ;;
+            'xl') zargs+=("-gcflags=-l=4") ;;
+            'xd') zargs+=("-race") ;;
+            x\?) _usage; return 1 ;;
+            *) x=$flag ;;
+        esac
+    done
+    shift $((OPTIND-1))
+    case "x$x" in
+        'xt') _tests "$@" ;;
+        'xq') _benchquick "$@" ;;
+        'xb') _bench "$@" ;;
+        'xm') _make "$@" ;;
+        'xr') _release "$@" ;;
+        'xg') _go ;;
+        'xu') _githubupdate ;;
+        'xp') _prebuild "$@" ;;
+        'xc') _clean "$@" ;;
+        'xz') _analyze "$@" ;;
+    esac
+    unset zforce zexternal 
+}
+
+[ "." = `dirname $0` ] && _main "$@"
+