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| author | Joey Hess <joeyh@joeyh.name> | 2015-09-30 11:24:54 -0400 |
|---|---|---|
| committer | Joey Hess <joeyh@joeyh.name> | 2015-09-30 11:24:54 -0400 |
| commit | fd9e7d443e6ac96f163781a27674c27b43ee101f (patch) | |
| tree | 4714db0a8d30c9cf8287a8ccdb1c7b157794df03 /doc/forum/property_which_create_a_file | |
| parent | ebf24f6a8fc2694be53476de20a8c97561346a6a (diff) | |
comment
Diffstat (limited to 'doc/forum/property_which_create_a_file')
| -rw-r--r-- | doc/forum/property_which_create_a_file/comment_1_bc541cd7e3fdaa8e1664e95bebecb2bc._comment | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/forum/property_which_create_a_file/comment_1_bc541cd7e3fdaa8e1664e95bebecb2bc._comment b/doc/forum/property_which_create_a_file/comment_1_bc541cd7e3fdaa8e1664e95bebecb2bc._comment new file mode 100644 index 00000000..cb8bd32f --- /dev/null +++ b/doc/forum/property_which_create_a_file/comment_1_bc541cd7e3fdaa8e1664e95bebecb2bc._comment @@ -0,0 +1,14 @@ +[[!comment format=mdwn + username="joey" + subject="""comment 1""" + date="2015-09-30T14:53:02Z" + content=""" +My suggestion in the specific case of the sbuild property would be to +generate the file whenever the property that generates the chroot has to +make a change. The `onChange` combinator accomplishes that. + +But if you really want to only run the property if the file doesn't exist, +you can do that by using the `check` combinator. For example: + + check (not <$> doesFileExist f) (createtarball f) +"""]] |