Bug fixes on OS X, add GNU readlink as deps #20

Makefile:
- short help was not properly created

love-release.sh:
- script aborts if GNU getopt is not found
- add GNU readlink as dependency, will check for greadlink too

README.md:
- add GNU readlink as dependency

Makefile

@@ -19,13 +19,13 @@ love-release: clean
 		ll="$$(grep -E -m 1 "^LONG_OPTIONS=['\"]?.*['\"]?" "$$file" | sed -Ee "s/LONG_OPTIONS=['\"]?//" -e "s/['\"]?$$//" -e "s/,/,$${s}/g")"; \
 		if [[ -n $$ll ]]; then l="$${l},$${s}$${ll}"; fi; \
 		long="$${l},$${long}"; \
-		if [[ -n $$shelp ]]; then shelp="$$shelp\n"; fi; \
-		shelp="$$shelp -$$(grep "init_module" $$file | sed -e 's/init_module //' -e 's/" "/\t/g' -e 's/"//g' | awk -F "\t" '{print($$3,"  ",$$1)}')"; \
+		shelp="$$shelp\\n\\ -$$(grep "init_module" $$file | sed -Ee 's/init_module //' -e 's/" "/	/g' -e "s/\"//g" | awk -F "\t" '{print($$3,"  ",$$1)}')\\\\"; \
 	done; \
+	shelp="$$shelp\\n"; \
 	sed -Ee "s/^OPTIONS=(['\"]?)/OPTIONS=\1$$short/" -e "s/^LONG_OPTIONS=(['\"]?)/LONG_OPTIONS=\1$$long/" \
 		-e 's/INSTALLED=false/INSTALLED=true/' \
-		-e "/^EndOfSHelp/ i\\$$shelp" \
-		-e 's/SCRIPTS_DIR="scripts"/SCRIPTS_DIR="$(SED_INSTALL_DIR)\/scripts"/' love-release.sh > '$(BUILD_DIR)/love-release'; \
+		-e 's/SCRIPTS_DIR="scripts"/SCRIPTS_DIR="$(SED_INSTALL_DIR)\/scripts"/' \
+		-e "$$(echo "$$(sed -n '/^EndOfSHelp/=' love-release.sh) i \\$$(printf "$$shelp")")" love-release.sh > '$(BUILD_DIR)/love-release'; \
 	comp="$$(if [[ -n $$long ]]; then echo --$$long | tr -d ':' | sed -e 's/,$$//' -e 's/,/ --/g'; fi)$$(if [[ -n $$short ]]; then echo $$short | sed -E 's/(.)/ -\1/g'; fi) "; \
 	sed -Ee "s/opts=\"(.*)/opts=\"$$comp\1/" completion.sh > '$(BUILD_DIR)/completion.sh'
 	cp love-release.1 '$(BUILD_DIR)/love-release.1'
@@ -52,12 +52,13 @@ embedded: clean
 		ll="$$(grep -E -m 1 "^LONG_OPTIONS=['\"]?.*['\"]?" "$$file" | sed -Ee "s/LONG_OPTIONS=['\"]?//" -e "s/['\"]?$$//" -e "s/,/,$${s}/g")"; \
 		if [[ -n $$ll ]]; then l="$${l},$${s}$${ll}"; fi; \
 		long="$${l},$${long}"; \
-		shelp="$$shelp -$$(grep "init_module" $$file | sed -e 's/init_module //' -e 's/" "/\t/g' -e 's/"//g' | awk -F "\t" '{print($$3,"  ",$$1)}')"; \
+		shelp="$$shelp\\n\\ -$$(grep "init_module" $$file | sed -Ee 's/init_module //' -e 's/" "/	/g' -e "s/\"//g" | awk -F "\t" '{print($$3,"  ",$$1)}')\\\\"; \
 	done; \
+	shelp="$$shelp\\n"; \
 	sed -Ee "s/^OPTIONS=(['\"]?)/OPTIONS=\1$$short/" -e "s/^LONG_OPTIONS=(['\"]?)/LONG_OPTIONS=\1$$long/" \
 		-e 's/EMBEDDED=false/EMBEDDED=true/' \
-		-e "/^EndOfSHelp/ i\\$$shelp" \
-		-e '/include_scripts_here$$/r $(BUILD_DIR)/tmp' love-release.sh > '$(BUILD_DIR)/love-release.sh'
+		-e '/include_scripts_here$$/r $(BUILD_DIR)/tmp' \
+		-e "$$(echo "$$(sed -n '/^EndOfSHelp/=' love-release.sh) i \\$$(printf "$$shelp")")" love-release.sh > '$(BUILD_DIR)/love-release.sh';
 	chmod 0775 '$(BUILD_DIR)/love-release.sh'
 	rm -rf '$(BUILD_DIR)/tmp'
 

README.md

@@ -2,7 +2,7 @@
 `love-release.sh` -- Bash script to generate [LÖVE](https://love2d.org/) game releases
 
 ### INSTALLATION
-`love-release` relies on `GNU getopt` (OSX and BSD user needs to install it), `curl`, `zip` and `unzip`.
+`love-release` relies on `GNU getopt` and `GNU readlink` (OSX and BSD users need to install them), `curl`, `zip` and `unzip`.
 You need to have `lua` installed to be able to read the configuration.
 You also need Wine to get icons and installer for Windows, the Debian pakaging utilities for Debian and the Android SDK to build a package for Android.
 

love-release.sh

@@ -26,7 +26,7 @@ check_deps () {
     } && {
         unset GETOPT_COMPATIBLE
         local out=$(getopt -T)
-        if [[ $? -eq 4 && -z $out ]]; then
+        if (( $? != 4 )) && [[ -n $out ]]; then
             local opt=false
         fi
     }
@@ -34,6 +34,16 @@ check_deps () {
         >&2 echo "GNU getopt is not installed. Aborting."
         local EXIT=true
     fi
+    if ! command -v readlink > /dev/null 2>&1 || ! readlink -m / > /dev/null 2>&1; then
+        command -v greadlink > /dev/null 2>&1 || {
+            >&2 echo "GNU readlink is not installed. Aborting."
+            local EXIT=true
+        } && {
+            readlink () {
+                greadlink "$@"
+            }
+        }
+    fi
 
     command -v lua   > /dev/null 2>&1 || {
         echo "lua is not installed. Install it to ease your releases."