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author | Samuel Giddins <segiddins@segiddins.me> | 2016-09-11 17:51:47 +0200 |
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committer | Samuel Giddins <segiddins@segiddins.me> | 2016-09-11 17:51:47 +0200 |
commit | c2235433a04f1ddc78322255505259f85c34508d (patch) | |
tree | f45d017e50dcd3d029f0a856e100cf2f358ea871 | |
parent | eb20f97d8e52175cd2004159c5ee46dcc1f89d7e (diff) | |
download | bundler-seg-exec-load-docs.tar.gz |
Update bundle-exec docs for exec loadingseg-exec-load-docs
-rw-r--r-- | man/bundle-exec.ronn | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/man/bundle-exec.ronn b/man/bundle-exec.ronn index ba6844c5c2..c9ab2309e4 100644 --- a/man/bundle-exec.ronn +++ b/man/bundle-exec.ronn @@ -63,6 +63,15 @@ It also modifies Rubygems: making system executables work * Add all gems in the bundle into Gem.loaded_specs +### Loading + +By default, when attempting to `bundle exec` to a file with a ruby shebang, +Bundler will `Kernel.load` that file instead of using `Kernel.exec`. For the +vast majority of cases, this is a performance improvement. In a rare few cases, +this could cause some subtle side-effects (such as dependence on the exact +contents of `$0` or `__FILE__`) and the optimization can be disabled by enabling +the `disable_exec_load` setting. + ### Shelling out Any Ruby code that opens a subshell (like `system`, backticks, or `%x{}`) will |