docker-playground/osmo-msc-master
Oliver Smith 61f2be7bd4 Fix git checkout for branches and commits
Replace 'git checkout -f -B $BRANCH origin/$BRANCH && \' in all
Dockerfiles that accept branch variables ($OSMO_TTCN3_BRANCH,
$OSMO_MGW_BRANCH, ...) with the following:
	git checkout $BRANCH && \
	(git symbolic-ref -q HEAD && git reset --hard origin/$BRANCH || exit 1); \

This allows using branch names and commit hashes in the $BRANCH
variables. Using commits is needed for the bisect script added in [1].

The second line ("(git symbolic...") checks if we are in detached HEAD
state after the checkout, and if we are not, pulls in all new commits
from origin/$BRANCH. Note that it ends in ';' instead of '&&', because
the command in the next line should be executed even if
"git symbolic-ref" does not exit with 0 (detached HEAD state).

Here is an example, to illustrate that the new command does the right
thing. Clone a repository and be 50 commits behind origin/master:
$ git clone "https://git.osmocom.org/osmo-mgw"
$ cd osmo-mgw
$ git reset --hard origin/master~50

With BRANCH="master":
$ git checkout master && \
  (git symbolic-ref -q HEAD && git reset --hard origin/master || exit 1); \
  echo "done"
Already on 'master'
...
done
$ git status
Your branch is up-to-date with 'origin/master'.

With BRANCH="85978d":
$ git checkout 85978d && \
  (git symbolic-ref -q HEAD && git reset --hard origin/85978d || exit 1); \
  echo "done"
Note: checking out '85978d'.
...
done
$ git status
HEAD detached at 85978dad

Related previous changes:
* [2] made it work for commit hashes, but broke using branch names other
      than master, and pulling in new commits from master
* [3] made branches other than master work again, but did not fix
      pulling in new commits from master
* [4] reverted [3] and the git checkout related part from [2]

[1] Change-Id: I11f7e61a9b30d58a0fdfcaf77dde447806bf661f
[2] Change-Id: If3bc5fae07cf63c4fef68306be4c4328660bc869
[3] Change-Id: I2ff745c8d19b777d876170d5717c082ceb68a1f3
[4] Change-Id: Ie6da0f9ea96f11407e38545a6b3cf22ef9cadc25

Related: OS#4015
Change-Id: I4004980baf0b7d6096702b6f3067ccbdb369a28c
2019-05-22 11:18:56 +02:00
..
.release Add osmo-msc-master Dockerfile 2018-01-22 10:52:26 +00:00
Dockerfile Fix git checkout for branches and commits 2019-05-22 11:18:56 +02:00
Makefile Add osmo-msc-master Dockerfile 2018-01-22 10:52:26 +00:00
Release.key Release.key of osmocom-nightly has expired; update it in all Dockerfiles 2018-02-04 17:20:04 +01:00
osmo-msc.cfg osmo-msc.cfg: remove auth policy, LU reject cause 2019-01-29 13:30:52 +01:00