Sublimerge: Show Changes Between Tags… A Custom Comparison for Sublimerge v2.7.5 for Git users to compare two tags with each other. Sublimerge is a professional, side-by-side diff tool for Sublime Text 2 and 3 / www.sublimerge.com

Custom Comparisons.sublime-settings

{
    "custom_comparisons_user": [
        {
            "name": "Show Changes Between Tags...",
            "requires": "git",
            "steps": [
                {
                    "quick_panel": {
                        "name": "tag1",
                        "source": {
                            "execute": {
                                "command": "{config:git_executable_path} tag",
                                "directory": "{sublimerge:repo_root}"
                            },
                            "item": {
                                "regexp": "^.*$",
                                "caption": ["@0"],
                                "value": "@0"
                            },
                            "reverse": true, //remove it for compatibility with Sublimerge v2.7.4
                        
                            "empty_message": "There are no tags"
                        }
                    }
                },
                {
                    "quick_panel": {
                        "name": "tag2",
                        "source": {
                            "execute": {
                                "command": "{config:git_executable_path} tag --contains \"{tag1}\"",
                                "directory": "{sublimerge:repo_root}"
                            },
                            "item": {
                                "regexp": "^.*$",
                                "caption": ["@0", "Compare @0 to {tag1}"],
                                "value": "@0"
                            },
                            "none": { //remove it for compatibility with Sublimerge v2.7.4
                                "values": ["{tag1}"] //do not display previously selected tag on the list
                            },
                            "reverse": true, //remove it for compatibility with Sublimerge v2.7.4
                        
                            "empty_message": "There are no newer tags"
                        }
                    }
                },
                {
                    "quick_panel": {
                        "name": "file",
                        "source": {
                            "execute": {
                                "command": "{config:git_executable_path} log \"{tag1}\"..\"{tag2}\" --name-status --no-decorate --pretty=\"format:\"",
                                "directory": "{sublimerge:repo_root}"
                            },
                            "item": {
                                "regexp": "^M\\s+(.+)$",
                                "caption": ["@1", "Show changes between {tag1} and {tag2}"],
                                "value": "@1",
                                "unique": true
                            },
                            "alpha": true,  //remove it for compatibility with Sublimerge v2.7.4
                            
                            "empty_message": "There are no changes between {tag1} and {tag2}"
                        }
                    }
                },
                {
                    "define": {
                        "left_file": "{sublimerge:temp_dir}/{file|basename}@{tag1}{file|ext}",
                        "right_file": "{sublimerge:temp_dir}/{file|basename}@{tag2}{file|ext}"
                    }
                },
                {
                    "capture": {
                        "execute": {
                            "command": "{config:git_executable_path} show \"{tag2}\":\"./{file}\" > \"{right_file}\"",
                            "directory": "{sublimerge:repo_root}"
                        }
                    }
                },
                {
                    "compare": {
                        "execute": {
                            "command": "{config:git_executable_path} show \"{tag1}\":\"./{file}\" > \"{left_file}\"",
                            "directory": "{sublimerge:repo_root}"
                        },
                        "left": {
                            "file": "{left_file}",
                            "title": "{file|basename}@{tag1}",
                            "temporary": true
                        },
                        "right": {
                            "file": "{right_file}",
                            "title": "{file|basename}@{tag2}",
                            "temporary": true
                        }
                    }
                }
            ]
        }
    ]
}