Add opkg.sh containing write_config to write config files withing bash

opkg.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+write_config() {
+        local path="$1"
+        local data="{
+    \"ini\"   : {
+        \"/opt/app/sysconfig/ISMASMgr.ini\"       : \"d41d8cd98f00b204e9800998ecf8427e\",
+        \"/opt/app/sysconfig/sysconfig.ini\"      : \"d41d8cd98f00b204e9800998ecf8427e\",
+        \"/opt/app/sysconfig/SystemControl.ini\"  : \"d41d8cd98f00b204e9800998ecf8427e\"
+    },
+    \"conf\"  : {
+        \"szeged/1/1/etc/psa_config/emp.conf\"    : \"d41d8cd98f00b204e9800998ecf8427e\",
+        \"szeged/1/1/etc/psa_config/printer.conf\": \"d41d8cd98f00b204e9800998ecf8427e\"
+    },
+    \"opkg\"  : {"
+
+        local cnt=0
+        for package_name in $(opkg list-installed); # list names of installed packages
+        do 
+                if ! grep -q "^[a-zA-Z]" <<< $package_name; then
+                        continue
+                fi
+                
+                if [ -z "$package_name" ]; then
+                        continue
+                fi
+                
+                cnt=$((cnt+1))
+
+                printf "%3d:%s\n" "$cnt" "$package_name"
+
+                #       Format of package info:
+                #
+                #       Package: openssh-scp
+                #       Version: 7.8p1+git-r0
+                #       Depends: libc6 (>= 2.28), update-alternatives-opkg
+                #       Status: install ok installed
+                #       Section: console/network
+                #       Architecture: cortexa9t2hf-neon
+                #       Maintainer: Poky <poky@yoctoproject.org>
+                #       MD5Sum: dfffcbb088cd5f180be5e9ee2ad030fe
+                #       Size: 32700
+                #       Filename: openssh-scp_7.8p1+git-r0_cortexa9t2hf-neon.ipk
+                #       Source: openssh_7.8p1+git.bb
+                #       Description: A suite of security-related network....
+                #       Installed-Size: 58920
+                #       Installed-Time: 1654699615
+                #       
+                # process substitution (P.S):
+                # run 'opkg info' synchronously to parent script
+
+                exec {fd}< <(opkg info "$package_name") # open fd readable for P.S.
+                cs_pid=$!                               # remember pid of P.S.
+
+                while read package_info_line <&$fd; do
+                        if [[ $package_info_line == Package* ]]; then
+                                package=(${package_info_line// / })
+                                package="\"${package[1]}\": {"
+                        elif [[ $package_info_line == MD5Sum* ]]; then
+                                md5sum=(${package_info_line// / })
+                                md5sum="\"${md5sum[0]%?}\": \"${md5sum[1]}\"," 
+                        elif [[ $package_info_line == Filename* ]]; then
+                                filename=(${package_info_line// / })
+                                filename="\"${filename[0]%?}\": \"${filename[1]}\"," 
+                        elif [[ $package_info_line == Installed-Time* ]]; then
+                                installed_time=(${package_info_line// / })
+                                installed_time="\"${installed_time[0]%?}\": \"${installed_time[1]}\"
+        }," 
+                        fi
+                done
+
+                exec {fd}>&-                            # close fd (i.e. process substitution)
+                wait $cs_pid                            # wait for the subshell to finish
+
+        # use 8 spaces
+                data="$data
+        $package
+            $md5sum
+            $filename
+            $installed_time"
+        done
+
+        if [[ "$data" =~ ^.*,$ ]]; then
+            data=${data%?}
+        fi
+        
+        data="$data
+    }
+}"
+        echo "$data" > "$path/test.txt"
+}
+
+ddd={ date -d @10000000 +'%Y'; }
+echo $ddd
+
+# write_config "/tmp/customer_281/szeged" "test.txt"