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Diffstat (limited to 'docs/misc/patch.md')
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1 files changed, 30 insertions, 15 deletions
diff --git a/docs/misc/patch.md b/docs/misc/patch.md index 43c35382..f9df55c0 100644 --- a/docs/misc/patch.md +++ b/docs/misc/patch.md @@ -11,11 +11,13 @@ This is just a quick guide for reference, use 'man' to know more. Apply a patch ============= -To apply a patch to a single file, do that in it's directory:\ +To apply a patch to a single file, do that in it's directory: + $ patch < foo.patch Assuming that the patch is distributed in unified format identifying the -file the patch should be applied to, the above will work. Otherwise:\ +file the patch should be applied to, the above will work. Otherwise: + $ patch foo.txt < bar.patch You can apply a patch to an entire directory, but note the "p level". @@ -24,22 +26,26 @@ intend to patch, identified by path names that might be different when the files ane located on your own computer instead of on the computer where the patch was created. 'p' level instructs the 'patch' utility to ignore parts of the path name to identify the files correctly. -Usually a p level of 1 will work, so you would use:\ +Usually a p level of 1 will work, so you would use: + $ patch -p1 < baz.patch Change to the top level directory before running this. If a patch level of 1 cannot identify the files to patch, then inspect the patch file for -file names. For example:\ +file names. For example: + **/home/user/do/not/panic/yet.c** -and you are working in a directory that contains panic/yet.c, use:\ +and you are working in a directory that contains panic/yet.c, use: + $ patch -p5 < baz.patch You usually count one up for each path separator (forward slash) removed from the beginning of the path, until you are left with a path that exists in the current working directory. The count is the p level. -Removing a patch using the -R flag\ +Removing a patch using the -R flag + $ patch -p5 -R < baz.patch [Back to top of page.](#pagetop) @@ -49,13 +55,16 @@ Removing a patch using the -R flag\ Create a patch with diff ======================== -Diff can create a patch for a single file:\ +Diff can create a patch for a single file: + $ diff -u original.c new.c > original.patch -For diff'ing a source tree:\ +For diff'ing a source tree: + $ cp -R original new -Do whatever you want in new/ and then diff it:\ +Do whatever you want in new/ and then diff it: + $ diff -rupN original/ new/ > original.patch [Back to top of page.](#pagetop) @@ -69,13 +78,16 @@ git is something special. Note: this won't show new files created. -Just make whatever changes you want to a git clone and then:\ +Just make whatever changes you want to a git clone and then: + $ git diff > patch.git -Note the git revision that you did this with:\ +Note the git revision that you did this with: + $ git log -Alternatively (better yet), commit your changes and then use:\ +Alternatively (better yet), commit your changes and then use: + $ git format-patch -N Replace N with the number of commits that you want to show. @@ -89,10 +101,12 @@ git apply it really is. Now to apply that patch in the future, just git clone it again and do -with the git revision you found from above:\ +with the git revision you found from above: + $ git reset \--hard REVISIONNUMBER -Now put patch.git in the git clone directory and do:\ +Now put patch.git in the git clone directory and do: + $ git apply patch.git If you use a patch from git format-patch, then use **git am patch.git** @@ -103,7 +117,8 @@ aswell, instead of just applying the patch. -Copyright © 2014, 2015 Leah Rowe <info@minifree.org>\ +Copyright © 2014, 2015 Leah Rowe <info@minifree.org> + Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license or any later version published by Creative |