If the main loop did not get a subcommand during parsing of the
command line then we should offer up a list of commonly used
commands and their one-line usage summary, to help the user make
a decision about which command they should try to execute.
Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
.../src/org/spearce/jgit/pgm/Main.java | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/Main.java b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/Main.java
index c069989..c8bade8 100644
--- a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/Main.java
+++ b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/Main.java
@@ -121,6 +121,24 @@ public class Main {
System.err.println();
clp.printUsage(System.err);
System.err.println();
+ } else if (subcommand == null) {
+ System.err.println();
+ System.err.println("The most commonly used commands are:");
+ final CommandRef[] common = CommandCatalog.common();
+ int width = 0;
+ for (final CommandRef c : common)
+ width = Math.max(width, c.getName().length());
+ width += 2;
+
+ for (final CommandRef c : common) {
+ System.err.print(' ');
+ System.err.print(c.getName());
+ for (int i = c.getName().length(); i < width; i++)
+ System.err.print(' ');
+ System.err.print(c.getUsage());
+ System.err.println();
+ }
+ System.err.println();
}
System.exit(1);
}
--
1.6.0.rc0.182.gb96c7
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