Method findPowerShell

src/session.ts:726–775

(
        wantedName?: string,
    )

    }

    private async findPowerShell(
        wantedName?: string,
    ): Promise<IPowerShellExeDetails | undefined> {
        this.logger.writeDebug("Finding PowerShell...");
        const powershellExeFinder = new PowerShellExeFinder(
            this.platformDetails,
            this.sessionSettings.powerShellAdditionalExePaths,
            this.logger,
        );

        let foundPowerShell: IPowerShellExeDetails | undefined;
        try {
            let defaultPowerShell: IPowerShellExeDetails | undefined;
            wantedName ??= this.sessionSettings.powerShellDefaultVersion;
            if (wantedName !== "") {
                for await (const details of powershellExeFinder.enumeratePowerShellInstallations()) {
                    // Need to compare names case-insensitively, from https://stackoverflow.com/a/2140723
                    if (
                        wantedName.localeCompare(
                            details.displayName,
                            undefined,
                            { sensitivity: "accent" },
                        ) === 0
                    ) {
                        defaultPowerShell = details;
                        break;
                    }
                }
            }
            foundPowerShell =
                defaultPowerShell ??
                (await powershellExeFinder.getFirstAvailablePowerShellInstallation());
            if (
                wantedName !== "" &&
                defaultPowerShell === undefined &&
                foundPowerShell !== undefined
            ) {
                void this.logger.writeAndShowWarning(
                    `The 'powerShellDefaultVersion' setting was '${wantedName}' but this was not found!` +
                        ` Instead using first available installation '${foundPowerShell.displayName}' at '${foundPowerShell.exePath}'!`,
                );
            }
        } catch (err) {
            this.logger.writeError(
                `Error occurred while searching for a PowerShell executable:\n${err}`,
            );
        }

        return foundPowerShell;
    }

    private async startLanguageServerProcess(
        powerShellExeDetails: IPowerShellExeDetails,