获取 npm 包的下一个主要版本（不一定是最新的！）

Question

我正在编写一个 bash 脚本来批量更新和测试包。但是，我希望脚本不要跳转到最新版本，只要下一个主要版本存在并通过测试。

我正在研究与此类似的东西（为简洁起见，将较长的代码段简化为伪代码）

#!/bin/bash

# Assign package name to $packageName

# START MAIN LOOP

# Start code that does a preliminary test
...
# End code that does preliminary test
# Assign current package version to $current

npm install $packagename@#[next?]
# # The above line is the one I can't figure out. 
# Say, for example, $current is 3.4.7. and 
# $packagename@latest is 5.2.3. This should 
# update to 4.0.0, but if latest is 3.5.8, it would update
# to 3.5.8, but then not update if latest is 3.4.7

# Do post tests
# # If fails post tests
       # alert user to breaking version
       npm install $packagename@$current # revert to previous version

# # If succeeds post tests, check if now at @latest
# # # If not at @latest, repeat MAIN LOOP
# # # If at @latest, exit 0.

Answer 1

#!/usr/bin/bash
arr=('npm' 'yarn' 'puppetter' 'express')
for pkg in "${arr[@]}"; do
    pkg_noinstl=$(npm -g ls "$pkg" | grep -o '(empty)')
    if [[ "$pkg_noinstl" ]]; then
        echo "$pkg: Not Installed"
    else
        myversion=$(npm -g list "$pkg" | grep "@" | cut -d@ -f2)
        int_myversion=$(echo "$myversion" | cut -f3 -d.)
        reg=$(echo "$myversion" | cut -f1,2 -d.)
        newversion=$(npm view "$pkg" versions | grep -oP "$reg.[0-9]{1,2}")
        int_newversion=$(echo "$newversion" | cut -f3 -d. | tail -1)

        if [[ "$int_newversion" -gt "$int_myversion" ]]; then
            n=$(echo "$newversion" | tail -1)
            echo "$pkg:$myversion you have an upgrade-->$n"
        else
            echo "$pkg: OK $myversion"
        fi
    fi
done

返回：

如果你想 +1 发布 6.14.8-->6.14.9 然后添加：

 next_release=$(((int_myversion + 1)))
 intnr=$(echo "$newversion" | cut -d. -f3 | grep "$next_release")
 n=$(echo "$newversion" | tail -1)
 echo "$pkg:$myversion you have an upgrade-->$n, available-->$reg.$intnr"