使用AWK转换不同类型的字符串

Question

我的配置文件中有以下变量：

tags = {
    environment  = "development",
    provider     = "ServiceOne",
    ansible_role = "nfs-role",
    comment      = "mysql"
}
line                       = "b01"
my_lb_ports                = "[53, 80, 443, 389, 636, 3268, 3269, 6443]"
dns_servers                = "[\"8.8.8.8\", \"9.9.9.9\"]"

对于我的Pipeline，我需要将其转换为以下内容：

tfh pushvars -overwrite-all -dry-run false -hcl-var "tags={environment=\"development\", provider=\"ServiceOne\", ansible_role=\"nfs-rolep\",comment= \"mysql\"}"

tfh pushvars -overwrite-all -dry-run false -hcl-var "line=\"b01\""

tfh pushvars -overwrite-all -dry-run false -hcl-var "my_lb_ports=[\"53\", \"80\", \"443\", \"389\", \"636\", \"3268\", \"3269\", \"6443\"]"

tfh pushvars -overwrite-all -dry-run false -hcl-var "dns_servers=[\"8.8.8.8\", \"9.9.9.9\"]"

下面的脚本是在@Ed Morton的支持下创建的，但它仍然不能识别所有模式：

#!/usr/bin/env bash

(( $# == 2 )) || { echo "==> Usage: ./${0##*/} <<INPUT_FILE>> <<OUTPUT_FILE>>"; exit 1; }

vars_file="$1"
output_file="$2"


awk '
    BEGIN {
        ORS = ""
        print "tfh pushvars -overwrite-all -dry-run false -hcl-var \""
    }
    NF && !/^#/ {
        gsub(/[[:space:]]/,"")
        gsub(/"/,"\\\\&")
        print
    }
    END {
        print "\"\n"
    }
' "$vars_file" > "$output_file"

awk -F'=' '{ gsub( /\x22/ ,"\x5c\\&", $2 ); gsub( / / ,"", $1 ); gsub( / / ,"", $2 );  print "tfh pushvars -overwrite-all -dry-run false -hcl-var \x22" $1 "=" $2 "\x22"}'  "$vars_file" >> "$output_file"

Answer 1

这是一个很好的开始，您需要弄清楚如何调整输出行中的"：

$ cat tst.sh
#!/usr/bin/env bash

(( $# == 2 )) || { echo "==> Usage: ./${0##*/} <<INPUT_FILE>> <<OUTPUT_FILE>>"; exit 1; }

vars_file="$1"
output_file="$2"

awk '
    BEGIN {
        ORS = ""
        beg = "tfh pushvars -overwrite-all -dry-run false -hcl-var \""
        end = "\"\n"
    }
    /^[[:alnum:]_]+[[:space:]]*=/ {
        gotBlockBeg = 1
        gotBlockEnd = ( $NF == "{" ? 0 : 1 )
    }
    gotBlockBeg {
        block = block $0
        if ( $NF == "}" ) {
            gotBlockEnd = 1
        }
    }
    gotBlockEnd {
        gsub(/[[:space:]]/,"",block)
        gsub(/"/,"\\\\&",block)
        print beg block end
        gotBlockBeg = gotBlockEnd = 0
        block = ""
    }
' "$vars_file" > "$output_file"

$ ./tst.sh file foo

$ cat foo
tfh pushvars -overwrite-all -dry-run false -hcl-var "tags={environment=\"development\",provider=\"ServiceOne\",ansible_role=\"nfs-role\",comment=\"mysql\"}"
tfh pushvars -overwrite-all -dry-run false -hcl-var "line=\"b01\""
tfh pushvars -overwrite-all -dry-run false -hcl-var "my_lb_ports=\"[53,80,443,389,636,3268,3269,6443]\""
tfh pushvars -overwrite-all -dry-run false -hcl-var "dns_servers=\"[\\"8.8.8.8\\",\\"9.9.9.9\\"]\""

在您不了解awk脚本中发生了什么的地方添加调试print语句，或者使用gawk调试器(gawk -D ...)运行它。