minpkg/core/mmm.nim
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import std/[json, os, httpclient, strutils, sequtils, logging, algorithm ] import env type MinModuleManager* = object registry: string modules = %[] globalDir*: string localDir*: string MMMError = ref object of CatchableError MMMAlreadyInstalledError = ref object of MMMError proc raiseError(msg: string) = raise MMMError(msg: msg) proc raiseAlreadyInstalledError(msg: string) = raise MMMAlreadyInstalledError(msg: msg) proc setup*(MMM: var MinModuleManager, check = true) = MMM.registry = MMMREGISTRY MMM.globalDir = HOME / "mmm" MMM.localDir = getCurrentDir() / "mmm" var updatedLocal = 0 let mmmJson = MMM.globalDir / "mmm.json" if not dirExists(MMM.globalDir): createDir(MMM.globalDir) if not dirExists(MMM.localDir): createDir(MMM.localDir) if fileExists(mmmJson): try: let data = parseFile(mmmJson) updatedLocal = data["updated"].getInt MMM.modules = data["modules"] except CatchableError: debug getCurrentExceptionMsg() raiseError "Invalid local registry data ($#)" % [mmmJson] if check: let client = newHttpClient() # Check remote data var updatedRemote = 0 try: debug "Checking remote registry" updatedRemote = client.getContent(MMMREGISTRY & "/mmm.timestamp").parseInt debug "Remote registry timestamp retrieved." except CatchableError: debug getCurrentExceptionMsg() warn "Unable to connect to remote registry ($#)" % [MMMREGISTRY] if updatedRemote > updatedLocal: notice "Updating local module registry" try: client.downloadFile(MMMREGISTRY & "/mmm.json", mmmJson) except CatchableError: warn "Unable to download remote registry data ($#)" % [MMMREGISTRY & "/mmm.json"] debug getCurrentExceptionMsg() try: let data = parseFile(mmmJson) MMM.modules = data["modules"] except CatchableError: debug getCurrentExceptionMsg() raiseError "Invalid local registry data ($#)" % [mmmJson] else: debug "Local registry up-to-date: $#" % [$updatedLocal] proc init*(MMM: var MinModuleManager) = let pwd = getCurrentDir() if fileExists(pwd / "mmm.json"): raiseError "The current directory already contains a managed module (mmm.json already exists)" debug "Creating mmm.json file" let json = """ { "name": "$#", "author": "TBD", "description": "TBD", "license": "MIT", "private": true, "deps": {} } """ % [pwd.lastPathPart] writeFile(pwd / "mmm.json", json) if not dirExists(pwd / "mmm"): debug "Creating mmm directory" createDir(pwd / "mmm") notice "Created a mmm.json file in the current directory" proc uninstall*(MMM: var MinModuleManager, name, version: string, global = false) = var dir: string var versionLabel = version if version == "": versionLabel = "<all-versions>" if global: dir = MMM.globalDir / name else: dir = MMM.localDir / name else: if global: dir = MMM.globalDir / name / version else: dir = MMM.localDir / name / version let pwd = getCurrentDir() if not global and not fileExists(pwd / "mmm.json"): raiseError "mmm.json not found in current directory. Please run min init to initialize your managed module." if not dir.dirExists(): raiseError "Module '$#' (version: $#) is not installed." % [name, versionLabel] notice "Uninstalling module $#@$#..." % [name, versionLabel] try: dir.removeDir() if version != "" and dir.parentDir().walkDir().toSeq().len == 0: # Remove parent directory if no versions are installed dir.parentDir().removeDir() except CatchableError: debug getCurrentExceptionMsg() raiseError "Unable to uninstall module $#@$#" % [name, versionLabel] if not global: let mmmJson = pwd/"mmm.json" var data = mmmJson.parseFile if data["deps"].hasKey name: data["deps"].delete(name) mmmJson.writeFile(data.pretty) notice "Uninstall complete." proc uninstall*(MMM: var MinModuleManager, nameAndVersion: string, global = false) = let parts = nameAndVersion.split("@") if parts.len != 2: raiseError "Invalid module name and version: $#. Expected: <module-name>@<module-version>" % [nameAndVersion] let name = parts[0] let version = parts[1] MMM.uninstall name, version, global proc uninstall*(MMM: var MinModuleManager) = let pwd = getCurrentDir() if not fileExists(pwd / "mmm.json"): raiseError "mmm.json not found in current directory. Please run min init to initialize your managed module." try: notice "Uninstalling all local managed modules..." MMM.localDir.removeDir() notice "Done." except CatchableError: raiseError "Unable to uninstall local managed modules." proc install*(MMM: var MinModuleManager, name, version: string, global = false) = var dir: string let pwd = getCurrentDir() if global: dir = MMM.globalDir / name / version else: dir = MMM.localDir / name / version if not fileExists(pwd / "mmm.json"): raiseError "mmm.json not found in current directory. Please run min init to initialize your managed module." if dir.dirExists(): raiseAlreadyInstalledError "Module '$#' (version: $#) is already installed." % [name, version] dir.createDir() let results = MMM.modules.filterIt(it.hasKey("name") and it["name"] == %name) if results.len == 0: raiseError "Unknown module '$#'." % [name] let data = results[0] if not data.hasKey("method"): raiseError "Installation method not specified for module '$#'" % [name] let meth = data["method"].getStr if meth != "git": raiseError "Unable to install module '$#': Installation method '$#' is not supported" % [name, meth] if not data.hasKey("url"): raiseError "URL not specified for module '$#'" % [name] let url = data["url"].getStr let cmd = "git clone $# -b $# --depth 1 \"$#\"" % [url, version, dir.replace("\\", "/")] debug cmd notice "Installing module $#@$#..." % [name, version] if not data.hasKey("deps"): raiseError "Dependencies not specified for module '$#'" % [name] var result = execShellCmd(cmd) if result == 0: # Go to directory and install dependencies let originalDir = getCurrentDir() dir.setCurrentDir() MMM.setup(false) if data["deps"].pairs.toSeq().len > 0: notice "Installing dependencies..." for depName, depVersion in data["deps"].pairs: try: MMM.install depName, depVersion.getStr, global except CatchableError: warn getCurrentExceptionMsg() originalDir.setCurrentDir() result = 1 break # re-check if dependency installation failed. if result == 0: if not global: # Add dependency to current dir's mmm.json file. let mmmJson = dir/"mmm.json" var data = mmmJson.parseFile data["deps"][name] = %($version) mmmJson.writeFile(data.pretty) else: # Rollback warn "Installation failed - Rolling back..." try: MMM.setup(false) MMM.uninstall(name, version, global) notice "Rollback completed." except: debug getCurrentExceptionMsg() warn "Rollback failed." finally: raiseError "Installation failed." proc install*(MMM: var MinModuleManager, nameAndVersion: string, global = false) = let parts = nameAndVersion.split("@") if parts.len != 2: raiseError "Invalid module name and version: $#. Expected: <module-name>@<module-version>" % [nameAndVersion] let name = parts[0] let version = parts[1] MMM.install name, version, global proc install*(MMM: var MinModuleManager) = let mmmJson = getCurrentDir() / "mmm.json" if not mmmJson.fileExists: raiseError "No mmm.json file found in the current directory." let data = mmmJson.parseFile if not data.hasKey "deps": raiseError "No 'deps' key present in the mmm.json file in the current directory." for name, v in data["deps"].pairs: let version = v.getStr try: MMM.install name, version except MMMAlreadyInstalledError: warn getCurrentExceptionMsg() continue except CatchableError: debug getCurrentExceptionMsg() warn "Installation of module $#@$# failed - Rolling back..." % [name, version] try: MMM.setup(false) MMM.uninstall(name, version) notice "Rollback completed." except: debug getCurrentExceptionMsg() warn "Rollback failed." finally: raiseError "Installation failed." proc update*(MMM: var MinModuleManager, name, version: string, global = false) = var dir: string if global: dir = MMM.globalDir / name / version else: dir = MMM.localDir / name / version if not dir.dirExists(): raiseError "Module '$#' (version: $#) is not installed." % [name, version] # Read local mmm.json let mmmJson = dir / "mmm.json" if not mmmJson.fileExists: raiseError "No mmm.json file found for managed module $#@$#" % [name, version] var data: JsonNode try: data = mmmJson.parseFile except CatchableError: raiseError "Unable to parse mmm.json file for managed module $#@$#" % [name, version] if not data.hasKey("method"): raiseError "Installation method not specified for module '$#'" % [name] let meth = data["method"].getStr if meth != "git": raiseError "Unable to install module '$#': Installation method '$#' is not supported" % [name, meth] if not data.hasKey("url"): raiseError "URL not specified for module '$#'" % [name] let url = data["url"].getStr let cmd = "git -C \"$#\" pull" % [dir.replace("\\", "/"), url, version] debug cmd notice "Updating module $#@$#..." % [name, version] if not data.hasKey("deps"): raiseError "Dependencies not specified for module '$#'" % [name] var result = execShellCmd(cmd) if result == 0: # Go to directory and install dependencies dir.setCurrentDir() MMM.setup(false) if data["deps"].pairs.toSeq().len > 0: notice "Updating dependencies..." for depName, depVersion in data["deps"].pairs: try: MMM.update depName, depVersion.getStr, global except CatchableError: warn getCurrentExceptionMsg() raiseError "Update of module '$#@$#' failed." % [name, version] proc update*(MMM: var MinModuleManager, nameAndVersion: string, global = false) = let parts = nameAndVersion.split("@") if parts.len != 2: raiseError "Invalid module name and version: $#. Expected: <module-name>@<module-version>" % [nameAndVersion] let name = parts[0] let version = parts[1] MMM.update name, version, global proc update*(MMM: var MinModuleManager) = let mmmJson = getCurrentDir() / "mmm.json" if not mmmJson.fileExists: raiseError "No mmm.json file found in the current directory." let data = mmmJson.parseFile if not data.hasKey "deps": raiseError "No 'deps' key present in the mmm.json file in the current directory." for name, v in data["deps"].pairs: let version = v.getStr try: MMM.update name, version except CatchableError: debug getCurrentExceptionMsg() warn "Update of module '$#@$#' failed." % [name, version] proc search*(MMM: var MinModuleManager, search="") = let rateModule = proc(it: JsonNode): JsonNode = var score = 0 if it["name"].getStr.contains(search): score += 4 if it["description"].getStr.contains(search): score += 2 if it["author"].getStr.contains(search): score += 1 it["score"] = %score return it let sortModules = proc(x, y: JsonNode): int = cmp(x["score"].getInt, y["score"].getInt) let formatDeps = proc(deps: JsonNode): string = result = deps.pairs.toSeq().mapIt("$#@$#" % [it.key, it.val.getStr]).join(", ") if result == "": result = "n/a" var results = MMM.modules.getElems().map(rateModule).filterIt(it["score"].getInt > 0) results.sort(sortModules) var msg = "$# results found:" if results.len == 1: msg = "$# result found:" elif results.len == 0: msg = "No results found." notice msg % [$results.len] for m in results: notice "-> $#" % [m["name"].getStr] notice " Description: $#" % [m["description"].getStr] notice " Author: $#" % [m["author"].getStr] notice " License: $#" % [m["license"].getStr] notice " Dependencies: $#" % [m["deps"].formatDeps] proc list*(MMM: var MinModuleManager, dir: string, level = 0) = debug "Directory: " & dir if not dir.dirExists: return for name in dir.walkDir: debug "Module directory: " & name.path if name.kind == pcDir or name.kind == pcLinkToDir: for version in (name.path).walkDir: debug "Module version directory: " & version.path if name.kind == pcDir or name.kind == pcLinkToDir: notice " ".repeat(level) & "$#@$#" % [name.path.lastPathPart, version.path.lastPathPart] MMM.list version.path/"mmm", level+1 |