Numerous updates to the Spring CLI, primarily for better embedded REPL
shell support:
* Refactor the CLI application to help separate concerts between the
main CLI and the embedded shell. Both the CLI and embedded shell now
delegate to a new `CommandRunner` to handle running commands. The
runner can be configured differently depending depending on need.
For example, the embedded shell adds the 'prompt' and 'clear'
commands.
* Most `Command` implementations have been moved to sub-packages so that
they can be co-located with the classes that they use.
* Option commands are now only used in the CLI, the embedded shell
does not user them and details have been removed from the Command
interface.
* The REPL shell has been significantly refactored to:
- Support CTRL-C to cancel the running process. This is supported
when running external commands and most internal commands.
- Fork a new JVM when running commands (primarily for CTRL-C support
but also for potential memory and classpath issues)
- Change the "continue" trigger from `<<` to `\`
- Support command completion of files
- Add ANSI color output
- Provide 'help' support for internal commands (such as 'clear')
- Remove the now redundant `stop` command
Fixes gh-227
Usage:
$ gradle bootRun
...
Edit files in src/main/resources and see the changes live in a web app
(e.g. static resources in /static).
The old functionality of bootRun has been replaced (since it didn't add
a lot of value and also didn't expose any JMV argument setters of anything).
This new feature set is backed by any existing "run" task configuration.
In addition autodetects a main class if there is one in the project
sources, so no need for mainClassName = '...' in build.gradle.
Applies the 'application' plugin (so no need to declare that either).
Fixes gh-225
The AST transformation that processes @Grab annotations is driven once
per source file. Previously, this meant that if an app consisted of
multiple source files then multiple, discrete dependency resolutions
would be performed.
This commit updates AetherGrapeEngine to cache a previous resolution's
outcome and use its dependency to influence the outcome of subsequent
resolutions. For example if a one resolution results in spring-core
4.0.0.RELEASE being added to the classpath, subsequent resolutions
that depend upon spring-core will always get the 4.0.0.RELEASE
version. This is achieved by using the dependencies found by earlier
resolutions as dependency management configuration of the current
resolution. This removes the possibility of multiple versions of the
same dependency ending up on the classpath.
In addition to using the results of earlier resolutions to provide
dependency management configuration, default dependency management
configuration is also provided. This configuration is specified by
the springcli.properties file and ensures that, where Boot prescribes
certain versions of a dependency, that is the version that will be
resolved. For example, this ensures that spring-data-redis, which
depends upon Spring 3.1.4, pulls in the version of Spring that Boot
requires instead.
Fixes#224
Actually System.in works fine, it's the output streams that get buffered.
We can fix it by diverting them for the duration of the command.
Fixes gh-217
We might also want to rethink "!" as a shell exec command (since it means
something in a real shell and in JLine). E.g. use "exec" or something.
Partial fix for gh-220 (ideally we'd process the events and catch
and handle exceptions).
A typical cause of startup failure is an incorrectly configured
classpath. Previously the classpath used to launch the application
wasn't easy for a user to discover. This made problem diagnosis
difficult. This commit adds an application listener that, in the event
of a start error, logs the thread context class loader's classpath at
INFO level. The classpath is also logged at DEBUG level when an
application starts successfully.
In this commit we retain "init" as a command inside the ShellCommand
but not on the bash command line.
Seems to have an impact on performance so relevant to gh-212.
Update SpringApplication to run by default in 'headless' mode. This
prevents the AWT system from creating a Java icon (for example in the
OSX dock).
Also update builds to run tests in 'headless' mode.
This appears to be a significant improvement in performance
(checking for the existence of init.grooy is cheap, but compiling
it is expensive).
I'm going to say this fixes gh-212.
Fix JarEntryData to re-read the local header, rather than relying on
the central directory record.
This protects against the situation where a JAR file is written with an
'Extra Field Length' that is different in the local header to the
central directory header.
This appears to be the case with aspectj 1.7.4 which contains the
following central directory file header for ProceedingJoinPoint:
50 4B 01 02 signature
14 03 version made by
0A 00 version required
00 00 general
08 00 compress methods
0E 40 59 43 last modified
2D 59 20 70 crc
EC 00 00 00 csize
8D 01 00 00 size
2A 00 fname len
00 00 ext field len
00 00 file comment len
00 00 disk num
00 00 int file att
00 00 A4 81 ext file att
97 F3 00 00 relative offset of the local file header
... file name
and the following local header:
50 4B 03 04 signature
0A 00 version required
00 00 general
08 00 compress method
0E 40 59 43 last modified
2D 59 20 70 crc
EC 00 00 00 csize
8D 01 00 00 size
2A 00 fname len
14 00 ext field len
... file name
... extra field
Note that the 'ext field len' is 0x00 in the central record but 0x14 in
the local record.
Fixes gh-203
Replace references to 'files' throughout the code-base with 'sources'
following the rename of `FileOptions` to `SourceOptions`.
Also cleanup ResourceUtils a little
We check for existence of the sources and (as before) resolve multiple
resources on the classpath if a path is not a File. In addition supports
Spring pseudo-URL prefixes as well as normal URLs as source locations.
In addition sources can now be specified as a directory (searched
recursively by default), or a resource pattern (e.g. app/**/*.groovy).
Fixes gh-207
Recent changes to the repository configuration for @Grab
didn't update the tests which use the GroovyCompiler as
a standalone. Fixed that by using the
RepositoryConfigurationFactory.
Dave Syer
Phillip Webb
Andy Wilkinson
Christian Dupuis