From 7c3c76bd6ead7bee4953bf279c88114c2ff00c54 Mon Sep 17 00:00:00 2001
From: Maxim Likhachev <envrm@yandex.ru>
Date: Sun, 16 Feb 2020 15:20:56 +0300
Subject: [PATCH] Generate README with Linux and MacOS applications

---
 scripts/doc.sh  | 103 +++++++++++++++++++++++++++++++++-----------------------
 scripts/doc.tpl |  51 ++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+), 42 deletions(-)
 create mode 100644 scripts/doc.tpl

diff --git a/scripts/doc.sh b/scripts/doc.sh
index 02f2ad1..79b1a0a 100755
--- a/scripts/doc.sh
+++ b/scripts/doc.sh
@@ -1,6 +1,24 @@
 #!/bin/bash
 
-MACOS_FILE=roles/macos/vars/main.yml
+CWD=$(dirname "$0")
+
+source "$CWD/doc.tpl"
+
+MACOS_FILE=$CWD/../roles/macos/vars/main.yml
+LINUX_FILE=$CWD/../roles/linux-gentoo/vars/applications.yml
+
+APP_ALIASES=$(cat <<-EOF
+		haskell-stack:stack-bin
+		ghostscript:ghostscript-gpl
+		ntfs-3g:ntfs3g
+		firefox:firefox-bin
+		shellcheck:shellcheck-bin
+	EOF
+)
+
+get_alias() {
+	grep -E ":?${1}:?" <<<"${APP_ALIASES[*]}" | sed -E "s/:?${1}:?//"
+}
 
 description() {
 	application=$1
@@ -17,64 +35,65 @@ description() {
 	printf -- "- %s[%s](%s) - %s%s\n" "$marks" "$app_name" "$app_page" "$app_dscr" "$marks"
 }
 
-MACOS_APPS=$(grep -E '^\s*(#\s)?-\s+[^:]+\s+#\s*http.+$' "$MACOS_FILE" \
+get_apps() {
+	grep -E '^\s*(#\s)?-\s+[^:]+\s+#\s*http.+$' "$1" \
 		| expand \
 		| sort \
 		| sed -E 's/[[:space:]]+/ /g; s/^[[:space:]]*//'
-)
-
-apps_macos=""
-
-while read -r app; do
-	disabled=
-	if [ "${app:0:1}" == '#' ]; then
-		app=$(cut -d ' ' -f 2- <<<"$app")
-		disabled=1
-	fi
-
-	apps_macos+=$(description "$app" "$disabled")
-	apps_macos+='\n'
-done <<<"$MACOS_APPS"
-
-# ------------------------------------------------------------------------------
-
-echo -e "\
-# OS Configuration
+}
 
-Ansible roles for configuring Linux and MacOS environments.
+get_app_names() {
+	grep -E -o -- "^-[[:space:]]+[^[:space:]]+[[:space:]]" <<<"${1}" | cut -d ' ' -f 2-
+}
 
-## License
+drop() {
+	eval "${2}=\$(grep -v -E \"^- ${1}\s+.*$\" <<<\"\$${2}\")"
+}
 
-[GNU General Public License v3.](https://www.gnu.org/licenses/gpl-3.0.html)
+to_md() {
+	md=""
 
-## Usage
+	while read -r app; do
+		disabled=
+		if [ "${app:0:1}" == '#' ]; then
+			app=$(cut -d ' ' -f 2- <<<"$app")
+			disabled=1
+		fi
 
-\`\`\`
-# Create README.md:
-$ make doc
+		md="${md}$(description "$app" "$disabled")\n"
+	done <<<"$1"
 
-# Configure local OS:
-$ make
-\`\`\`
+	echo -e "$md"
+}
 
-----
+MACOS_APPS=$(get_apps "$MACOS_FILE")
+LINUX_APPS=$(get_apps "$LINUX_FILE" | sed -E 's!- [^/]+/!- !')
 
-## Configuration files and scripts
+LINUX_APPS_NAMES=($(get_app_names "$LINUX_APPS"))
+MACOS_APPS_NAMES=($(get_app_names "$MACOS_APPS"))
 
-- [shellrc](https://code.envrm.info/src/shellrc) - Configuration files for shells (bash, tclsh, etc), X, WM and applications.
-- [scripts-linux](https://code.envrm.info/src/scripts-linux) - Various cli scripts.
+COMMON_APPS=""
+for app in "${MACOS_APPS_NAMES[@]}"; do
+	alias="$(get_alias $app)"
+	alias="${alias:-NO_ALIAS}"
 
-----
+	if [[ "${LINUX_APPS_NAMES[*]}" =~ $app ]] || [[ "${LINUX_APPS_NAMES[*]}" =~ $alias ]]; then
+		COMMON_APPS="${COMMON_APPS}$(grep -E -- "^-\s+${app}\s+" <<<"$MACOS_APPS")\n"
 
-## MacOS
+		[[ "${LINUX_APPS_NAMES[*]}" =~ $alias ]] && drop "$alias" LINUX_APPS
 
-### Applications
+		drop "$app" MACOS_APPS
+		drop "$app" LINUX_APPS
+	fi
+done
 
-$apps_macos
+COMMON_APPS=$(echo -e "$COMMON_APPS")
 
-### Other
+apps_common=$(to_md "$COMMON_APPS")
+apps_macos=$(to_md "$MACOS_APPS")
+apps_linux=$(to_md "$LINUX_APPS")
 
-- [Keyman](https://keyman.com/mac/download) - Input method and screen keyboard for more than 1000 languages.
+# ------------------------------------------------------------------------------
 
-"
+doc
 
diff --git a/scripts/doc.tpl b/scripts/doc.tpl
new file mode 100644
index 0000000..4601bdc
--- /dev/null
+++ b/scripts/doc.tpl
@@ -0,0 +1,51 @@
+doc() {
+cat <<-EOF
+	# OS Configuration
+	
+	Ansible roles for configuring Linux and MacOS environments.
+	
+	## License
+	
+	[GNU General Public License v3.](https://www.gnu.org/licenses/gpl-3.0.html)
+	
+	## Usage
+	
+	\`\`\`
+	# Create README.md:
+	$ make doc
+	
+	# Configure local OS:
+	$ make
+	\`\`\`
+	
+	----
+	
+	## Configuration files and scripts
+	
+	- [shellrc](https://code.envrm.info/src/shellrc) - Configuration files for shells (bash, tclsh, etc), X, WM and applications.
+	- [scripts-linux](https://code.envrm.info/src/scripts-linux) - Various cli scripts.
+	
+	----
+	
+	## Common Applications
+	
+	$apps_common
+	
+	## Linux
+	
+	### Applications
+	
+	$apps_linux
+	
+	## MacOS
+	
+	### Applications
+	
+	$apps_macos
+	
+	### Other
+	
+	- [Keyman](https://keyman.com/mac/download) - Input method and screen keyboard for more than 1000 languages.
+
+EOF
+}