Better logging (#6038) (#6095)

* Panic don't fatal on create new logger

Fixes #5854

Signed-off-by: Andrew Thornton <art27@cantab.net>

* partial broken

* Update the logging infrastrcture

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Reset the skip levels for Fatal and Error

Signed-off-by: Andrew Thornton <art27@cantab.net>

* broken ncsa

* More log.Error fixes

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Remove nal

* set log-levels to lowercase

* Make console_test test all levels

* switch to lowercased levels

* OK now working

* Fix vetting issues

* Fix lint

* Fix tests

* change default logging to match current gitea

* Improve log testing

Signed-off-by: Andrew Thornton <art27@cantab.net>

* reset error skip levels to 0

* Update documentation and access logger configuration

* Redirect the router log back to gitea if redirect macaron log but also allow setting the log level - i.e. TRACE

* Fix broken level caching

* Refactor the router log

* Add Router logger

* Add colorizing options

* Adjust router colors

* Only create logger if they will be used

* update app.ini.sample

* rename Attribute ColorAttribute

* Change from white to green for function

* Set fatal/error levels

* Restore initial trace logger

* Fix Trace arguments in modules/auth/auth.go

* Properly handle XORMLogger

* Improve admin/config page

* fix fmt

* Add auto-compression of old logs

* Update error log levels

* Remove the unnecessary skip argument from Error, Fatal and Critical

* Add stacktrace support

* Fix tests

* Remove x/sync from vendors?

* Add stderr option to console logger

* Use filepath.ToSlash to protect against Windows in tests

* Remove prefixed underscores from names in colors.go

* Remove not implemented database logger

This was removed from Gogs on 4 Mar 2016 but left in the configuration
since then.

* Ensure that log paths are relative to ROOT_PATH

* use path.Join

* rename jsonConfig to logConfig

* Rename "config" to "jsonConfig" to make it clearer

* Requested changes

* Requested changes: XormLogger

* Try to color the windows terminal

If successful default to colorizing the console logs

* fixup

* Colorize initially too

* update vendor

* Colorize logs on default and remove if this is not a colorizing logger

* Fix documentation

* fix test

* Use go-isatty to detect if on windows we are on msys or cygwin

* Fix spelling mistake

* Add missing vendors

* More changes

* Rationalise the ANSI writer protection

* Adjust colors on advice from @0x5c

* Make Flags a comma separated list

* Move to use the windows constant for ENABLE_VIRTUAL_TERMINAL_PROCESSING

* Ensure matching is done on the non-colored message - to simpify EXPRESSION

1 files changed, 7 insertions, 7 deletions

diff --git a/routers/repo/branch.go b/routers/repo/branch.go
index 19925c1edc..a29519a43f 100644
--- a/routers/repo/branch.go
+++ b/routers/repo/branch.go
@@ -51,7 +51,7 @@ func DeleteBranchPost(ctx *context.Context) {
 	branchName := ctx.Query("name")
 	isProtected, err := ctx.Repo.Repository.IsProtectedBranch(branchName, ctx.User)
 	if err != nil {
-		log.Error(4, "DeleteBranch: %v", err)
+		log.Error("DeleteBranch: %v", err)
 		ctx.Flash.Error(ctx.Tr("repo.branch.deletion_failed", branchName))
 		return
 	}
@@ -83,7 +83,7 @@ func RestoreBranchPost(ctx *context.Context) {
 
 	deletedBranch, err := ctx.Repo.Repository.GetDeletedBranchByID(branchID)
 	if err != nil {
-		log.Error(4, "GetDeletedBranchByID: %v", err)
+		log.Error("GetDeletedBranchByID: %v", err)
 		ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", branchName))
 		return
 	}
@@ -93,13 +93,13 @@ func RestoreBranchPost(ctx *context.Context) {
 			ctx.Flash.Error(ctx.Tr("repo.branch.already_exists", deletedBranch.Name))
 			return
 		}
-		log.Error(4, "CreateBranch: %v", err)
+		log.Error("CreateBranch: %v", err)
 		ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", deletedBranch.Name))
 		return
 	}
 
 	if err := ctx.Repo.Repository.RemoveDeletedBranch(deletedBranch.ID); err != nil {
-		log.Error(4, "RemoveDeletedBranch: %v", err)
+		log.Error("RemoveDeletedBranch: %v", err)
 		ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", deletedBranch.Name))
 		return
 	}
@@ -116,14 +116,14 @@ func redirect(ctx *context.Context) {
 func deleteBranch(ctx *context.Context, branchName string) error {
 	commit, err := ctx.Repo.GitRepo.GetBranchCommit(branchName)
 	if err != nil {
-		log.Error(4, "GetBranchCommit: %v", err)
+		log.Error("GetBranchCommit: %v", err)
 		return err
 	}
 
 	if err := ctx.Repo.GitRepo.DeleteBranch(branchName, git.DeleteBranchOptions{
 		Force: true,
 	}); err != nil {
-		log.Error(4, "DeleteBranch: %v", err)
+		log.Error("DeleteBranch: %v", err)
 		return err
 	}
 
@@ -137,7 +137,7 @@ func deleteBranch(ctx *context.Context, branchName string) error {
 		RepoUserName: ctx.Repo.Owner.Name,
 		RepoName:     ctx.Repo.Repository.Name,
 	}); err != nil {
-		log.Error(4, "Update: %v", err)
+		log.Error("Update: %v", err)
 	}
 
 	if err := ctx.Repo.Repository.AddDeletedBranch(branchName, commit.ID.String(), ctx.User.ID); err != nil {