Burn overwrites logs when retrying an MSI file

[wixbot]

Burn overwrites the existing log files when retrying to install an MSI file.

Example burn log

1: [1100:123C][2015-07-18T01:17:19]i301: Applying execute package: COMPANY.PRODUCT.Setup, action: Install, path:   C:\ProgramData\Package Cache\{6330960D-AEE9-44F0-97CA-4416A86EE987}v3.0.5.1\COMPANY PRODUCT Setup.msi, arguments: ' ARPSYSTEMCOMPONENT="1" MSIFASTINSTALL="7" INSTALLFOLDER="C:\Program Files (x86)\COMPANY\COMPANY PRODUCT\" REMOVESERVICESETTINGS="0" REMOVEUSERSETTINGS="0" REMOVEPRIVATEKEY="1"'
2: [1100:123C][2015-07-18T01:17:34]e000: Error 0x80070643: Failed to install MSI package.
3: [1100:123C][2015-07-18T01:17:34]e000: Error 0x80070643: Failed to execute MSI package.
4: [0F30:0844][2015-07-18T01:17:34]e000: Error 0x80070643: Failed to configure per-machine MSI package.
5: [0F30:0844][2015-07-18T01:17:34]w348: Application requested retry of package: COMPANY.PRODUCT.Setup, encountered error: 0x80070643. Retrying...
6: [1100:123C][2015-07-18T01:17:37]i301: Applying execute package: COMPANY.PRODUCT.Setup, action: Install, path: C:\ProgramData\Package Cache\{6330960D-AEE9-44F0-97CA-4416A86EE987}v3.0.5.1\COMPANY PRODUCT Setup.msi, arguments: ' ARPSYSTEMCOMPONENT="1" MSIFASTINSTALL="7" INSTALLFOLDER="C:\Program Files (x86)\COMPANY\COMPANY PRODUCT\" REMOVESERVICESETTINGS="0" REMOVEUSERSETTINGS="0"'
7: [1100:123C][2015-07-18T01:17:37]e000: Error 0x80070641: Failed to install MSI package.

In the above log, when the first retry occurs (line 6) it will overwrite the MSI log from the first attempt (line 1), thus potentially losing any important information from the first attempt.

Two potential solutions are:

1. Burn should append to the existing MSI log files when retrying, rather than truncating them.
2. Burn should append an identifier, e.g. _retry_# to the log filename for each retry attempt.

Originally opened by shannonc

[wixbot]

Burn should append

Release set to v3.x
Type changed from Bug to Feature