Differences

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--- go_fedora_packages [2018/04/10 13:01] – created rpjday
+++ go_fedora_packages [2019/08/17 09:59] (current) – [Stuff] rpjday
@@ Line 1: / Line 1: @@
 ===== Overview =====
-Basic Go-related packages for Fedora 28 (beta).
+golang on Fedora 30 ... and beyond.
 ===== Base packages =====
-==== golang ====
+  * golang
+    * golang-src
+    * golang-bin
+    * go-srpm-macros
+  * dep
-<code>
+===== go env =====
-$ rpm -qR golang
-go-srpm-macros
-golang-bin = 1.10.1-1.fc28
-golang-src = 1.10.1-1.fc28
-rpmlib(BuiltinLuaScripts) <= 4.2.2-1
-rpmlib(CompressedFileNames) <= 3.0.4-1
-rpmlib(FileDigests) <= 4.6.0-1
-rpmlib(PayloadFilesHavePrefix) <= 4.0-1
-rpmlib(PayloadIsXz) <= 5.2-1
-$
-</code>
-==== golang-bin ====
 <code>
-$ rpm -ql golang-bin | wc -l
+GOARCH="amd64"
+GOBIN=""
-$
+GOCACHE="/home/rpjday/.cache/go-build"
+GOEXE=""
+GOFLAGS=""
+GOHOSTARCH="amd64"
+GOHOSTOS="linux"
+GOOS="linux"
+GOPATH="/home/rpjday/go"               [personal workspace]
+GOPROXY=""
+GORACE=""
+GOROOT="/usr/lib/golang"               [Go installation workspace]
+GOTMPDIR=""
+GOTOOLDIR="/usr/lib/golang/pkg/tool/linux_amd64"
+GCCGO="gccgo"
+CC="gcc"
+CXX="g++"
+CGO_ENABLED="1"
+GOMOD=""
+CGO_CFLAGS="-g -O2"
+CGO_CPPFLAGS=""
+CGO_CXXFLAGS="-g -O2"
+CGO_FFLAGS="-g -O2"
+CGO_LDFLAGS="-g -O2"
+PKG_CONFIG="pkg-config"
+GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build215138165=/tmp/go-build -gno-record-gcc-switches"
 </code>
-==== golang-src ====
+===== Stuff =====
-<code>
+  * env vars
-$ rpm -ql golang-src | wc -l
+    * GOPATH (workspace)
+    * GOROOT (install dir)
-$
+  * "factored" import statement
-</code>
+  * uppercase symbols are automatically exported (math.Pi)
+  * functions
+    * return type *trails* function prototype
+    * no need to duplicate consecutive arg types (x, y int)
+    * multiple return values "(string, int)"
+    * named return values "func split(sum int) (x, y int) {"
+  * variables
+    * "var c, python, java bool"
+    * initializers "var i, j int = 10, 20"
+    * short implicit in-function form "k := 3"
+  * type conversions are necessary
+  * loops
+    * for [init] ; cond ; [iter] {
+    * for cond {             ["while"]
+    *