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authorDirk Gouders <dirk@gouders.net>2024-03-27 12:22:16 +0100
committerJunio C Hamano <gitster@pobox.com>2024-03-27 09:24:35 -0700
commit95ab557b4b6a11be693200803bbdef53117b8aa7 (patch)
treee2b8c512f1b00dd7300a0877a90370d07eb31882
parent7250cdb695e7a57521f0f0e8c35e7185ecbc925c (diff)
downloadgit-95ab557b4b6a11be693200803bbdef53117b8aa7.tar.gz
MyFirstObjectWalk: add stderr to pipe processing
In the last chapter of this document, pipes are used in commands to filter out the first/last trace messages. But according to git(1), trace messages are sent to stderr if GIT_TRACE is set to '1', so those commands do not produce the described results. Fix this by redirecting stderr to stdout prior to the pipe operator to additionally connect stderr to stdin of the latter command. Further, while reviewing the above fix, Kyle Lippincott noticed a second issue with the second of the examples: a missing slash in the executable path "./bin-wrappers git". Add the missing slash. Helped-by: Kyle Lippincott <spectral@google.com> Signed-off-by: Dirk Gouders <dirk@gouders.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/MyFirstObjectWalk.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/MyFirstObjectWalk.txt b/Documentation/MyFirstObjectWalk.txt
index e969a3a68a..dec8afe5b1 100644
--- a/Documentation/MyFirstObjectWalk.txt
+++ b/Documentation/MyFirstObjectWalk.txt
@@ -848,7 +848,7 @@ those lines without having to recompile.
With only that change, run again (but save yourself some scrollback):
----
-$ GIT_TRACE=1 ./bin-wrappers/git walken | head -n 10
+$ GIT_TRACE=1 ./bin-wrappers/git walken 2>&1 | head -n 10
----
Take a look at the top commit with `git show` and the object ID you printed; it
@@ -876,7 +876,7 @@ of the first handful:
----
$ make
-$ GIT_TRACE=1 ./bin-wrappers git walken | tail -n 10
+$ GIT_TRACE=1 ./bin-wrappers/git walken 2>&1 | tail -n 10
----
The last commit object given should have the same OID as the one we saw at the